v2.0.0-alpha.20

Move package release to workflow docs
Document release workflow (#738 )
2026-11-11 23:04:52 +09:00 · 2025-02-28 23:55:11 +00:00 · 2025-02-28 23:34:24 +00:00 · 2025-02-28 23:11:59 +00:00 · 2025-02-27 16:13:33 +01:00 · 2025-02-27 00:05:48 +01:00
546 changed files with 48443 additions and 23507 deletions
@@ -0,0 +1,4 @@
+{
+	"image":"mcr.microsoft.com/devcontainers/universal:2",
+	"postCreateCommand": "wget https://factorio.com/get-download/1.1.107/headless/linux64 && tar -xf linux64 && pnpm install",
+}
@@ -13,8 +13,7 @@ factorio
 factorio.tar.gz

 # We build internal mods during build, mods from local test env should not be applied
-sharedMods
-sharedModsDisabled
+mods

 # These files should never be required during the build
 .git
@@ -1,32 +1,54 @@
 "use strict";
 module.exports = {
 	"plugins": [
+		"@typescript-eslint",
 		"node",
 	],
+	"root": true,
 	"env": {
 		"node": true,
 		"commonjs": true,
-		"es6": true,
-	},
-	"parserOptions": {
-		"ecmaVersion": 11,
+		"es2022": true,
 	},

 	"overrides": [
+		{
+			"files": ["{packages,plugins}/**/*.ts?(x)"],
+			"parser": "@typescript-eslint/parser",
+			"extends": [
+				"plugin:@typescript-eslint/recommended",
+			],
+			"rules": {
+				"@typescript-eslint/no-explicit-any": "off",
+				"@typescript-eslint/no-useless-constructor": "error",
+				"@typescript-eslint/no-unused-vars": "off",
+				"@typescript-eslint/triple-slash-reference": "off",
+				"@typescript-eslint/no-shadow": ["error", { "allow": ["Event", "Request", "yargs"] }],
+				"prefer-const": "off",
+				"no-shadow": "off",
+			},
+		},
 		{
 			"files": ["test/**/*.js", "plugins/*/test/**/*.js"],
 			"env": {
 				"mocha": "true",
 			},
+			"parserOptions": { sourceType: "commonjs" },
 			"rules": {
 				"prefer-arrow-callback": "off",
 				"no-invalid-this": "off",
+				"valid-jsdoc": "off",
 				"node/no-unpublished-import": "off",
 				"node/no-unpublished-require": "off",
 			},
 		},
 		{
-			"files": ["packages/web_ui/src/**/*.jsx", "packages/lib/browser.js", "plugins/*/web/**/*.jsx"],
+			"files": [
+				"packages/web_ui/src/**/*.ts?(x)",
+				"packages/lib/browser.ts",
+				"packages/create/templates/*/web/**/*.{t,j}s?(x)",
+				"{packages,plugins}/*/web/**/*.ts?(x)",
+			],
 			"env": {
 				"browser": true,
 			},
@@ -75,6 +97,19 @@ module.exports = {
 				"node/shebang": "off",
 			},
 		},
+		{
+			"files": [
+				"packages/create/templates/**/*.{t,j}s?(x)",
+			],
+			"rules": {
+				"node/no-missing-require": "off",
+				"node/no-missing-import": "off",
+				"spaced-comment": "off",
+				"comma-spacing": "off",
+				"max-len": "off",
+				"indent": "off",
+			},
+		},
 	],

 	"rules": {
@@ -111,7 +146,7 @@ module.exports = {
 		"curly": "error",
 		"default-case": "error",
 		"default-case-last": "error",
-		"default-param-last": "error",
+		"default-param-last": "off",
 		"dot-location": ["error", "property"],
 		"dot-notation": ["error", { "allowPattern": "^[a-z]+(_[a-z]+)*$" }],
 		"eol-last": "error",
@@ -119,7 +154,11 @@ module.exports = {
 		"func-call-spacing": "error",
 		"func-name-matching": "error",
 		"func-names": "off",
-		"func-style": ["error", "declaration"],
+		"func-style": ["error", "declaration", {
+			// Allow arrow functions as it better expresses referencing this
+			// of the containing scope, which is unweilding in plain functions.
+			"allowArrowFunctions": true,
+		}],
 		"function-call-argument-newline": "off",
 		"function-paren-newline": "off",
 		"generator-star-spacing": ["error", { "before": false, "after": true }],
@@ -139,7 +178,7 @@ module.exports = {
 		"linebreak-style": ["error", "unix"],
 		"lines-around-comment": "off",
 		"lines-around-directive": "off",
-		"lines-between-class-members": ["error", "always"],
+		"lines-between-class-members": ["error", "always", { "exceptAfterSingleLine": true }],
 		"max-classes-per-file": "off",
 		"max-depth": "error",
 		"max-len": ["error", { "code": 120 }],
@@ -151,7 +190,10 @@ module.exports = {
 		"max-statements-per-line": "off",
 		"multiline-comment-style": ["error", "separate-lines"],
 		"multiline-ternary": "off",
-		"new-cap": "error",
+		"new-cap": ["error", {
+			"capIsNewExceptions": ["StringEnum"],
+			"capIsNewExceptionPattern": "^Type\\.",
+		}],
 		"new-parens": "error",
 		"newline-after-var": "off",
 		"newline-before-return": "off",
@@ -162,7 +204,7 @@ module.exports = {
 		"no-bitwise": "off",
 		"no-buffer-constructor": "error",
 		"no-caller": "error",
-		"no-catch-shadow": "error",
+		"no-catch-shadow": "off",
 		"no-confusing-arrow": "error",
 		"no-console": "error",
 		"no-constant-condition": ["error", { "checkLoops": false }],
@@ -226,7 +268,7 @@ module.exports = {
 		"no-script-url": "error",
 		"no-self-compare": "error",
 		"no-sequences": "error",
-		"no-shadow": ["error", { "allow": ["yargs"] }],
+		"no-shadow": ["error", { "allow": ["Event", "Request", "yargs"] }],
 		"no-spaced-func": "error",
 		"no-tabs": ["error", { "allowIndentationTabs": true }],
 		"no-template-curly-in-string": "error",
@@ -238,12 +280,12 @@ module.exports = {
 		"no-unmodified-loop-condition": "error",
 		"no-unneeded-ternary": "error",
 		"no-unused-expressions": "error",
-		"no-use-before-define": "error",
+		"no-use-before-define": "off",
 		"no-useless-backreference": "error",
 		"no-useless-call": "error",
 		"no-useless-computed-key": "error",
 		"no-useless-concat": "error",
-		"no-useless-constructor": "error",
+		"no-useless-constructor": "off",
 		"no-useless-rename": "error",
 		"no-useless-return": "error",
 		"no-var": "error",
@@ -263,6 +305,7 @@ module.exports = {
 				":": "before",
 				"||": "before",
 				"&&": "before",
+				"??": "before",
 			},
 		}],
 		"padded-blocks": "off",
@@ -293,20 +336,28 @@ module.exports = {
 		"semi-style": "off",
 		"sort-imports": "off",
 		"sort-keys": "off",
-		"sort-vars": "error",
+		"sort-vars": "off",
 		"space-before-blocks": "error",
 		"space-before-function-paren": "off",
 		"space-in-parens": ["error", "never"],
 		"space-infix-ops": "off",
 		"space-unary-ops": "error",
-		"spaced-comment": ["error", "always"],
+		"spaced-comment": ["error", "always", {
+			"line": {
+				"markers": ["/"],
+			},
+		}],
 		"strict": "error",
 		"switch-colon-spacing": "error",
 		"symbol-description": "error",
 		"template-curly-spacing": ["error", "never"],
 		"template-tag-spacing": "error",
 		"unicode-bom": ["error", "never"],
-		"valid-jsdoc": ["error", { "requireReturn": false }],
+		"valid-jsdoc": ["error", {
+			"requireReturn": false,
+			"requireReturnType": false,
+			"requireParamType": false,
+		}],
 		"vars-on-top": "error",
 		"wrap-iife": "error",
 		"wrap-regex": "off",
@@ -316,14 +367,17 @@ module.exports = {
 		"node/callback-return": "off",
 		"node/exports-style": "off",
 		"node/file-extension-in-import": "off",
-		"node/global-require": "error",
-		"node/handle-callback-err": "error",
-		"node/no-callback-literal": "error",
+		"node/global-require": "off",
+		// Node.js callback passing style of (err, value) is not used in this project
+		"node/handle-callback-err": "off",
+		"node/no-callback-literal": "off",
 		"node/no-deprecated-api": "error",
 		"node/no-exports-assign": "error",
-		"node/no-extraneous-import": "error",
-		"node/no-extraneous-require": "error",
-		"node/no-missing-import": "error",
+		"node/no-extraneous-import": "off",
+		"node/no-extraneous-require": "off",
+		"node/no-missing-import": ["error", {
+			"tryExtensions": [".js", ".ts"],
+		}],
 		"node/no-missing-require": "error",
 		"node/no-mixed-requires": "error",
 		"node/no-new-require": "error",
@@ -338,9 +392,9 @@ module.exports = {
 			"error",
 			{ "allowModules": ["webpack", "webpack-merge", "webpack-dev-middleware"] },
 		],
-		"node/no-unsupported-features/es-builtins": "error",
-		"node/no-unsupported-features/es-syntax": "error",
-		"node/no-unsupported-features/node-builtins": "error",
+		"node/no-unsupported-features/es-builtins": "off",
+		"node/no-unsupported-features/es-syntax": "off",
+		"node/no-unsupported-features/node-builtins": "off",
 		"node/prefer-global/buffer": "error",
 		"node/prefer-global/console": "error",
 		"node/prefer-global/process": "error",
@@ -351,6 +405,10 @@ module.exports = {
 		"node/prefer-promises/dns": "off",
 		"node/prefer-promises/fs": "off",
 		"node/process-exit-as-throw": "error",
-		"node/shebang": "error",
+		"node/shebang": ["error", {
+			"convertPath": {
+				"*.ts": ["^(.+)\\.ts$", "dist/node/$1.js"],
+			},
+		}],
 	},
 };
@@ -0,0 +1,17 @@
+Describe why and what has been changed by this pullrequest, feel free to also ask for input on decisions you are unsure about etc.
+The changelog lines below will be copied directly from merged pull requests to the changelog on new releases. Changes are expected to preferrentially link to the associated issues. If there are no relevant issues, link to the pull request itself.
+
+## Changelog
+```
+### Features
+- Added doodad to web interface. [#999](https://github.com/clusterio/clusterio/issues/999)
+
+### Changes
+- ...
+
+### Fixes
+- ...
+
+### Breaking changes
+- ...
+```
@@ -12,40 +12,66 @@ jobs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [18.x, 20.x, 22.x]
        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+        factorio-version: [1.1.110]
+        # Supported versions are latest stable/experimental and one minor version before stable (even if from a previous major) 

    steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v4
+      with:
+        version: 8
    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      uses: actions/setup-node@v4
      with:
        node-version: ${{ matrix.node-version }}
-    - run: npm i --no-optional
-    - run: wget -q -O factorio.tar.gz https://www.factorio.com/get-download/latest/headless/linux64 && tar -xf factorio.tar.gz && rm factorio.tar.gz
-    - run: npx lerna bootstrap --hoist
-    - run: node packages/lib/build_mod --source-dir packages/slave/lua/clusterio_lib --output-dir temp/test/sharedMods
-    - run: wget -q -O temp/test/sharedMods/subspace_storage_1.99.8.zip -L https://github.com/clusterio/subspace_storage/releases/download/1.99.6/subspace_storage_1.99.8.zip
-    - run: npx lerna run build
+    - name: Prepare and install
+      run: pnpm i --no-frozen-lockfile
+    - name: Use Factorio ${{ matrix.factorio-version }}
+      run: wget -q -O factorio.tar.gz https://www.factorio.com/get-download/${{ matrix.factorio-version }}/headless/linux64 && tar -xf factorio.tar.gz && rm factorio.tar.gz
    - name: Run tests
-      if: ${{ matrix.node-version != '12.x' }}
-      run: npm test
+      if: ${{ matrix.node-version != '18.x' || matrix.factorio-version != '1.1.110' }}
+      run: pnpm test
    - name: Run coverage
-      if: ${{ matrix.node-version == '12.x' }}
-      run: npm run ci-cover
+      if: ${{ matrix.node-version == '18.x' && matrix.factorio-version == '1.1.110' }}
+      run: pnpm run ci-cover
    - name : Upload coverage to Codecov
-      if: ${{ matrix.node-version == '12.x' }}
-      uses: codecov/codecov-action@v2
+      if: ${{ matrix.node-version == '18.x' && matrix.factorio-version == '1.1.110' }}
+      uses: codecov/codecov-action@v4
      with:
        files: ./coverage/lcov.info
+        token: ${{ secrets.CODECOV_TOKEN }}

  lint:
    runs-on: ubuntu-latest
    steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-node@v2
+    - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v4
      with:
-        node-version: 16.x
-    - run: npm i --no-optional
-    - run: npx lerna bootstrap --hoist
-    - run: npm run lint
+        version: 8
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 18.x
+    - run: pnpm i --no-frozen-lockfile
+    - run: pnpm run lint
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: pnpm/action-setup@v4
+      with:
+        version: 8
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 18.x
+    - run: pnpm i --no-frozen-lockfile
+    - run: pnpm run build-mod
+    # Upload build to artifacts
+    - name: Upload build to artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: clusterio_lib
+        path: ./dist
+        if-no-files-found: error
@@ -31,16 +31,17 @@ node_modules

 Factorio*
 /factorio
+!/test/file/factorio
 /instances
-/sharedMods
+/mods
 /database
 /plugin-list.json
-/config-master.json
+/config-controller.json
 /config-control.json
-/config-slave.json
-package-lock.json
+/config-host.json
+pnpm-lock.yaml
 mod_cache.json
-static/export
+/static/
 saves
 /temp/

@@ -0,0 +1 @@
+auto-install-peers=false
@@ -0,0 +1,3 @@
+*
+!.gitignore
+!settings.json
@@ -0,0 +1,11 @@
+{
+	"editor.detectIndentation": false,
+	"editor.insertSpaces": false,
+	"files.eol": "\n",
+	"files.insertFinalNewline": true,
+	"files.trimFinalNewlines": true,
+	"[markdown]": {
+		"editor.indentSize": 4,
+		"editor.insertSpaces": true,
+	},
+}
@@ -1,5 +1,320 @@
 # Changelog

+<!-- Template for entries. Add sections that apply as changes are made.
+## Version 2.0.0-alpha.xx
+
+### Major Features
+
+- Major additions and/or major improvements to managing clusters.
+
+### Features
+
+- New features added.
+
+### Changes
+
+- Small changes to existing behaviour.
+
+### Fixes
+
+- Bugfixes
+
+### Breaking Changes
+
+- Changes which break backwards compatibility with older hosts or plugins code.
+
+### Meta
+
+- Changes to the project activities / structure worth highlighting but have no impact on the published package.
+
+Many thanks to the following for contributing to this release:  
+[@username](https://github.com/username)
+-->
+
+## Version 2.0.0-alpha.20
+
+### Features
+
+- Update subspace storage to 2.0 and space age. [#733](https://github.com/clusterio/clusterio/pull/733)
+- A fresh install of Clusterio will include default mod packs. [#719](https://github.com/clusterio/clusterio/issues/719)
+
+### Fixes
+
+- Fix crash when leaving a server without a logistic requester point [#731](https://github.com/clusterio/clusterio/pull/731)
+- Use floor instead of round to prevent "1 minute and 60 seconds" being shown [#723](https://github.com/clusterio/clusterio/issues/723)
+- Fixed production statistics overwriting consumption statistics and vise versa [#734](https://github.com/clusterio/clusterio/pulls/734)
+- Hot patch to add the updated 2.0.29 control.lua freeplay hash to know scenarios. [commit](https://github.com/clusterio/clusterio/commit/26269df7d4d8f39042c59653008bc8f034a4f3b4)
+
+### Meta
+
+- We have now introduced a new [decisions log](https://github.com/clusterio/clusterio/blob/master/docs/decisions.md) to aid tracking all the technical and design decisions we make and their reasons. [#714](https://github.com/clusterio/clusterio/pull/714)
+
+Many thanks to the following for contributing to this release:  
+[@Cooldude2606](https://github.com/Cooldude2606)
+[@Danielv123](https://github.com/Danielv123)
+[@psihius](https://github.com/psihius)
+
+## Version 2.0.0-alpha.19
+
+### Major Features
+
+- Added support for 2.0 builtin mods during mod pack creation. [#684](https://github.com/clusterio/clusterio/pull/684)
+- Added basic 2.0 support to clusterio lua api and 1st party plugins. [#685](https://github.com/clusterio/clusterio/pull/685)
+
+### Features
+
+- Added Datastore and Datastore Provider classes to the library to support savable Maps. [#629](https://github.com/clusterio/clusterio/pull/629)
+- Added clean script to speed up publishing and debugging of build steps. [#640](https://github.com/clusterio/clusterio/pull/640)
+- Added sub-tile option on plugin page headers. [#642](https://github.com/clusterio/clusterio/pull/642)
+- Greatly improved plugin and module template generation. [#641](https://github.com/clusterio/clusterio/pull/641)
+- Duplicate host connections from the same address will kill the older host process. [#647](https://github.com/clusterio/clusterio/pull/647)
+- Controller will refuse duplicate host connections from different addresses. [#647](https://github.com/clusterio/clusterio/pull/647)
+- Monorepos are now supported for external plugins. [#654](https://github.com/clusterio/clusterio/pull/654)
+- Changed default role selection to be a dropdown menu rather than id. [#664](https://github.com/clusterio/clusterio/pull/664)
+- Added credential option to config entries to allow writing sensitive data that can't be read back remotely.
+- Allow hidden and readonly graphical representations of config values. [#665](https://github.com/clusterio/clusterio/pull/665)
+- Added locale exporting for all builtin mods, not just for the base mod. [#684](https://github.com/clusterio/clusterio/pull/684)
+- Added option for silent testing which only shows the results, can be ran using `pnpm silent-test` [#680](https://github.com/clusterio/clusterio/pull/680)
+- Added prompt for http port on installation of Clusterio. [#564](https://github.com/clusterio/clusterio/issues/564)
+- Added drag and drop overlay to upload button on mods page and save table on instance page. [#591](https://github.com/clusterio/clusterio/issues/591)
+- Automatically add plugins from ./plugins, ./external_plugins and installed npm modules. [#692](https://github.com/clusterio/clusterio/pull/692)
+- `compat.table_to_json` and `compat.json_to_table` supported in all stages in pre 2.0 [#687](https://github.com/clusterio/clusterio/issues/687)
+- Add "connect to server" button to web interface, launches with steam api. [#608](https://github.com/clusterio/clusterio/issues/608)
+- Add space platform name mapping to space platform statistics. [#706](https://github.com/clusterio/clusterio/pull/706)
+- Track space platform speed metric clusterio_statistics_exporter_platform_speed. [#706](https://github.com/clusterio/clusterio/pull/706)
+- Track space platform weight metric clusterio_statistics_exporter_platform_weight. [#706](https://github.com/clusterio/clusterio/pull/706)
+- Added bidirectional sync to admin and ban list. [#709](https://github.com/clusterio/clusterio/pull/709)
+
+### Fixes
+
+- Fixed IPC errors reporting undefined when no stack trace was present. [#624](https://github.com/clusterio/clusterio/pull/624)
+- Fixed loopback routing for instances reporting the wrong error message. [#625](https://github.com/clusterio/clusterio/pull/625)
+- Fixed docs linking to non-existing js files after ts migration. [#633](https://github.com/clusterio/clusterio/pull/633)
+- Fixed CI workflows using deprecated version of nodejs. [#637](https://github.com/clusterio/clusterio/pull/637)
+- Fixed linux only tests to run on windows. [#661](https://github.com/clusterio/clusterio/pull/661)
+- Fixed log events being sent from a host over an invalid websocket. [#639](https://github.com/clusterio/clusterio/pull/639)
+- Fixed spaces passed in arguments to the installer causing it to break. [#620](https://github.com/clusterio/clusterio/issues/620)
+- Fixed numeric admin name breaking login. [#536](https://github.com/clusterio/clusterio/issues/536)
+- Fixed issues with subscriptions which prevented them from working on instances or generic events. [#655](https://github.com/clusterio/clusterio/pull/655).
+- Fixed unreliable datastore tests. [#662](https://github.com/clusterio/clusterio/pull/662).
+- Fixed 2.0 version extraction from linux headless. downloaded during installation of clusterio. [#671](https://github.com/clusterio/clusterio/pull/671)
+- Fixed invalid transient state during server start. [#676](https://github.com/clusterio/clusterio/issues/676)
+- Fixed host user sync to instances after reconnecting to the. controller. [#678](https://github.com/clusterio/clusterio/pull/678)
+- Fixed WebUI adding and displaying the wrong base mod version. [#684](https://github.com/clusterio/clusterio/pull/684)
+- Fixed WebUI inconsistent pattern matching for factorio version. [#684](https://github.com/clusterio/clusterio/pull/684)
+- Fixed `safeOutputFile` not being atomic because of a missing path separator. [#659](https://github.com/clusterio/clusterio/pull/659)
+- Fixed built-in mods showing as missing in the WebUI. [#581](https://github.com/clusterio/clusterio/issues/581)
+- Fixed dirty flag not being set when only the config of an instance is updated. [#675](https://github.com/clusterio/clusterio/pull/675)
+- Fixed incorrect command being used to remove players from the whitelist. [#679](https://github.com/clusterio/clusterio/pull/679)
+- Fixed CI following undocumented breaking change from downstream dependency. [#683](https://github.com/clusterio/clusterio/pull/683)
+- Fixed instance crash when missing saves folder. [#698](https://github.com/clusterio/clusterio/issues/698)
+- Fixed statistics exporter not working on newer versions of windows 11 due to wmic deprecation. [#707](https://github.com/clusterio/clusterio/issues/707)
+
+### Changes
+
+- Added prompt for the HTTP port to host the controller to the installer. [#619](https://github.com/clusterio/clusterio/pull/619)
+- Added tests for sendEvent and sendRequest throwing the correct error messages. [#638](https://github.com/clusterio/clusterio/pull/638)
+- Updated all web ui pages to use correct page header component. [#643](https://github.com/clusterio/clusterio/pull/643)
+- Bumped Typescript version to 5.5 and implemented `${configDir}` in base configs for "outDir". [#648](https://github.com/clusterio/clusterio/pull/648).
+- Added factorio.executable_path option which allows overriding the default path to the Factorio executable run.
+- Added instance version display. [#573](https://github.com/clusterio/clusterio/pull/573)
+- Added `factorio.shutdown_timeout` config to set the time the host will wait for a Factorio server to shut down befor killing it.
+- Changed shutdown logic to prefer sending a /quit command via RCON instead of using diverging logic on Windows and Linux.
+- Added `controller.factorio_username` and `controller.factorio_token` config to set Factorio credentials used for the whole cluster.
+- Added `controller.share_factorio_credential_with_hosts` config to optionally require hosts to provide their own credentials.
+- Added `host.factorio_username` and `host.factorio_token` config to set Factorio credentials used on a given host.
+- Changed `instance.rcon_password` config to be a credential field that can not be read by the control interface.
+- Changed `host.id` `instance.id` and `instance.assign_host` config to be hidden fields that can not be seen on the web ui.
+- Updated display name and description of `controller.external_address` to avoid confusion. [#674](https://github.com/clusterio/clusterio/pull/674)
+- Renamed config value `controller.external_address` to `controller.public_url`, migrations are applied automatically.
+- String config values with whitelisted values (enum) now display as a selection dropdown. [#701](https://github.com/clusterio/clusterio/pull/701)
+- Existing selection dropdowns now support search filtering. [#701](https://github.com/clusterio/clusterio/pull/701)
+- Added surface label to clusterio_statistics_exporter_instance_force_flow_statistics. [#691](https://github.com/clusterio/clusterio/issues/691)
+- Compat lib now supports versions from 0.17 to 2.0 [#711](https://github.com/clusterio/clusterio/pull/711)
+- Add bidirectional sync to admin and ban list. [#709](https://github.com/clusterio/clusterio/pull/709)
+
+### Breaking Changes
+
+- Previously silent errors for controller.sendEvent now throw exceptions [#625](https://github.com/clusterio/clusterio/pull/625).
+- @clusterio/controller export InstanceInfo has added factorioVersion parameter.
+- Argument order for `Config.canAccess` changed to require an access mode passed as the second argument.
+- Instances can now have `factorio.enable_script_commands` disabled which will throw an error when any script command is used over rcon. [#681](https://github.com/clusterio/clusterio/pull/681).
+- User IDs are now case insensitive, duplicate users will be automatically merged with a backup created. [#682](https://github.com/clusterio/clusterio/pull/682)
+- Plugins now require the keyword "clusterio-plugin" in package.json to be automatically loaded [#692](https://github.com/clusterio/clusterio/pull/692)
+
+Many thanks to the following for contributing to this release:  
+[@CCpersonguy](https://github.com/CCpersonguy)
+[@Cooldude2606](https://github.com/Cooldude2606)
+[@Danielv123](https://github.com/Danielv123)
+[@Hornwitser](https://github.com/Hornwitser)
+[@Laar](https://github.com/Laar)
+[@psihius](https://github.com/psihius)
+
+
+## Version 2.0.0-alpha.18
+
+### Features
+
+- Added logging of HTTP requests and errors on the controller [#556](https://github.com/clusterio/clusterio/pull/556).
+- Added caching of data parsed from mods to speed up startup time [#606](https://github.com/clusterio/clusterio/pull/606).
+- Added command to installer to generate the code for making a new plugin [#570](https://github.com/clusterio/clusterio/pull/570).
+
+### Changes
+
+- Fixed Inventory Sync reporting a negative database size [#598](https://github.com/clusterio/clusterio/pull/598).
+- Fixed plugin events being invoked while a host connection was in an invalid state.
+- Suppresed bogus warning about event listener leak in the browser's console [#600](https://github.com/clusterio/clusterio/pull/600).
+- Fixed installer breaking on Windows after Node.js released a security fix [#614](https://github.com/clusterio/clusterio/pull/614).
+- During a data export the mod settings in mod packs will now be corrected to the type of the settings prototype if the type is incorrect.
+- Fixed missing color setting causing the Mod Pack view in the Web UI to show an error [#609](https://github.com/clusterio/clusterio/issues/609).
+
+Many thanks to the following for contributing to this release:  
+[@Cooldude2606](https://github.com/Cooldude2606)
+[@Danielv123](https://github.com/Danielv123)
+[@Hornwitser](https://github.com/Hornwitser)
+
+
+## Version 2.0.0-alpha.17
+
+### Features
+
+- Made the host an instance is assigned to link to the host page for that host in the Web UI [#587](https://github.com/clusterio/clusterio/pull/587).
+- Added pagination to the saves list.
+
+### Changes
+
+- Fixed an unhandled error in Subspace Storage crashing the host.
+- Fixed an unhandled rejection in disconnect logic crashing the host.
+- Fixed instance screen in Web UI not updating when an instance was reassigned.
+- Fixed an error thrown in the rendering of one page in the Web UI causing all pages to become inaccessible.
+- Fixed Web UI not showing instance saves when the permission to list and subscribe the saves is granted but the user is not a cluster admin.
+- Similarly fixed Web UI not showing the mod pack create, delete, list and host revoke token actions if the user is not a cluster admin.
+- Fixed Research Sync applying progress of a previous techology level to the level on the controller when it's the active research during instance startup.
+- Fixed data export with a mod using shorthand notation for the default value of a color-setting causing the ModPack data to be set to invalid data.
+- Fixed per user per instance player stats not being deleted when the instance it's for is deleted.
+- Fixed mods setting the item prototype icons property to an object mapping instead of an array breaking the data export.
+- Fixed a bad mod in the host's mods folder causing instance start to fail instead of the host re-downloading the mod.
+
+### Breaking Changes
+
+- Renamed the permission `core.instance.save.list.subscribe` to `core.instance.save.subscribe`.
+
+Many thanks to the following for contributing to this release:  
+[@Cooldude2606](https://github.com/Cooldude2606)
+[@Danielv123](https://github.com/Danielv123)
+[@Hornwitser](https://github.com/Hornwitser)
+
+
+## Version 2.0.0-alpha.16
+
+### Changes
+
+- Fixed message sequences not being renumbered when forwarded between links causing reconnects to send duplicated messages.
+
+
+## Version 2.0.0-alpha.15
+
+### Features
+
+- Added support for `color-settings` Mod settings [#568](https://github.com/clusterio/clusterio/issues/568).
+- Added `clusterio_controller_pending_requests` and `clusterio_host_pending_requests` metrics.
+
+### Changes
+
+- Fixed generated systemd file for clusteriohost not enabling source maps.
+- Fixed ctl not exporting types used for adding commands to ctl plugins.
+- Fixed controller only plugins throwing an error about missing a config field on startup out when added to hosts.
+- Fixed installer incorrectly claiming the options --factorio-dir and --no-download-headless conflicts with each other.
+- Fixed a memory leak on every request sent over the WebSocket.
+- Fixed assertion error on closing or invalidating a link with messages forwarded from a virtual link.
+- Fixed host hanging if stopped while an instance is in the process of creating a save during startup.
+- Fixed `instance.auto_start` option.
+- Fixed host log spammed with errors when plugins broadcast messages to instances with the plugin disabled.
+- Fixed properties of object config fields not being possible to remove.
+
+
+## Version 2.0.0-alpha.14
+
+This release does not retain backwards compatibility with 2.0.0-alpha.13 meaning all parts of the cluster needs to updated at the same time.
+See the [migration guide](/docs/migrating-from-2.0.0-alpha.13.md) for how to update.
+
+### Major Features
+
+- Added mod management. Mods can be uploaded to the controller and included in mod packs that can be assigned to instances and run.
+- Added host port ranges which the instance ports will be automatically assigned a port from if factorio.game_port is not set.
+- Added system info such as CPU model, hostname and kernel along with basic metrics for CPU usage, memory usage and disk usage for the controller and hosts.
+- Added ability to remotely view and modify the configuration of hosts.
+
+### Features
+
+- Added logging of Clusterio version on startup
+- Added `clusterio_controller_log_bytes` metric counting the size of the log files on the controller.
+- Added warning logged when plugins on a connecting host does not match the ones installed on the controller.
+- Added ability to revoke user tokens.
+- Added restart required indicator to config fields in the Web UI.
+- Added ability to revoke host tokens.
+- Added support for plugins to run in the context of a host.
+- Added more feedback when the web UI and or its plugins fails to load.
+- Added autosaving of data held in memory on the controller such as configs, instances, users, mods to prevent large data loss on crashing.
+- Added `system_info` metric with kernel, instruction set, CPU Model, hostname and Node.js version of the controller.
+- Added `clusterio_host_system_info` metric with kernel, instruction set, CPU Model, hostname and Node.js version of hosts.
+- Added `system_cpu_seconds_total`, `system_cpu_idle_seconds_total`, `system_memory_capacity_bytes`, `system_memory_available_bytes`, `system_disk_capacity_bytes`, `system_disk_available_bytes` metrics for CPU, memory and disk usage on the controller.
+- Added `clusterio_host_system_cpu_seconds_total`, `clusterio_host_system_cpu_idle_seconds_total`, `clusterio_host_system_memory_capacity_bytes`, `clusterio_host_system_memory_available_bytes`, `clusterio_host_system_disk_capacity_bytes`, `clusterio_host_system_disk_available_bytes` metrics for CPU, memory and disk usage on hosts.
+- Added support for reading the client's IP address from the `X-Forwarded-For` header when the source address is in the `controller.trusted_proxies` config option.
+- Added field showing the IP address a host is connecting from.
+- Added per player statistic tracking when they were first seen joining a particular server.
+- Added ability to remotely restart and/or stop the controller and hosts.
+
+### Changes
+
+- Fixed filenames with extensions that are invalid on Windows such as "con.zip" not being treated as invalid.
+- Fixed generate host token modal not using a random id when the optional id field is unset.
+- Exported Factorio data is now tied to mod packs instead of being per cluster.
+- Fixed export failing if a mod uses a different root folder mod_version in its zip file.
+- Fixed sorting of user last seen column in the Web UI.
+- The list users permission is now granted by default to players.
+- Fixed incorrect handling of hosts and instance with an id of 0 causing them to not update properly.
+- Fixed unable to unassign instances in the Web UI.
+- Fixed host crashing if the Factorio server is not marked executable.
+- Fixed errors logged from instance not being attributed to the instance in certain situations.
+- Hosts no longer print messages from instances into their console.
+- Clusterio now treat unhandled Node.js errors and promise rejections as fatal and exit immediately.
+- Fixed a potential for data loss after a hard system crash due to fsync not being called on files written.
+- Fixed Factorio server crashing in the research_sync plugin when a mod enables a previously disabled technology and a player attempts to research it.
+- Fixed Factorio server crashing when the game starts with tick_paused = true
+- Removed migration of alpha 10's single file log format.
+- Log errors linking mods on Windows instead of preventing startup.
+- Added locale support for modules patched into to the game save.
+- Added support for defining a module_exports.lua file for modules patched into the game save.
+- Fixed controller logs being split on server's local time day boundary instead of UTC day boundary.
+- Fixed Unicode BOM in mod locale files breaking instance data export.
+- Added a warning to the server-setting.json that is automatically written to instance folders stating changes will be overwritten.
+- Changed save patching to use a `.tmp.zip` extension for the temporary file created instead of `zip.tmp`.
+- Fixed Inventory Sync wiping the player's inventory when logging out while in the Space Exploration remote view mode.
+- Fixed the public /api/plugins endponit leaking filesystem paths on the controller.
+- Refactored list subscriptions in the Web UI to cache and only fetch updated entries when navigating to previously seen list.
+- Added caching of save lists on the controller, enabling the saves of instances on offline hosts to still be seen.
+- Hosts in the assign instance dropdown is now sorted by name.
+- Added `non_blocking_saving` as one of the default settings added to `factorio.settings` on new instances.
+
+### Breaking Changes
+
+- Renamed usage of the terms master and slave to controller and host in all places they occur.
+- Mods located in `sharedMods` are no longer copied to instances' mods folder.
+- The instances' mods folder is now managed through mod packs, mods not part of the mod pack will be automatically deleted.
+- Removed ability to import sub packages like `@clusterio/lib/link` from.
+- Replaced `clusterio_controller_http_hits_total` metric with `clusterio_controller_http_endpoint_duration_seconds`.
+- Replaced `clusterio_controller_last_query_log_duration_seconds` metric with `clusterio_controller_query_log_duration_seconds` summary.
+- Reworked the network protocol to be simpler to work and reason with.
+- Bumped minimum supported Node.js version to v18.
+- Ported the codebase to TypeScript
+- Changed the config format stored on disk to be much simpler.
+
+### Contributors
+
+Many thanks to the following for contributing code in this release:  
+[@Hornwitser](https://github.com/Hornwitser) [@Luciole0x](https://github.com/Luciole0x) [@Cooldude2606](https://github.com/Cooldude2606) [@Danielv123](https://github.com/Danielv123) [@Reavershark](https://github.com/Reavershark) [@Laar](https://github.com/Laar) [@rstrom1763](https://github.com/rstrom1763)
+
 ## Version 2.0.0

 ### Major Features
@@ -8,11 +323,11 @@
  Removed the Hotpatch scenario and the depency on it for getting code into the game.
  Added a save patcher than runs before starting up Factorio that patches in lua modules based on the event_loader lib into the savegame.
  Regular freeplay games can now be used with Clusterio and will be compatible without having to convert them to Hotpatch.
- Daemonized slaves.
-  Slaves now have the ability to run multiple Factorio instances, starting and stopping them individually.
-  To manage this the local command line interface has been replaced with a remote interface on the master server that can be accessed through the clusterioctl cli tool.
- Rewritten the communication between slaves and the master from scratch.
-  The new system is based on a WebSocket connection between the slaves and the master server and provides efficient validated bi-directonal communication.
+- Daemonized hosts.
+  Hosts now have the ability to run multiple Factorio instances, starting and stopping them individually.
+  To manage this the local command line interface has been replaced with a remote interface on the controller that can be accessed through the clusterioctl cli tool.
+- Rewritten the communication between hosts and the controller from scratch.
+  The new system is based on a WebSocket connection between the hosts and the controller and provides efficient validated bi-directonal communication.
 - Rewritten the plugin system from scratch.
  Plugins now inherit from a base class and use the same WebSocket connection Clusterio uses to communicate.
 - New configuration system with support for initializing configs when needed, modifying config entries using built-in commands, and updating instance configuration remotely.
@@ -24,9 +339,9 @@
 ### Features

 - Added export of pollution statitics.
- Reconnection logic that esures no data is dropped talking to the master server provided the session can be resumed.
+- Reconnection logic that esures no data is dropped talking to the controller provided the session can be resumed.
 - Added support for having multiple Factorio installs and selecting which version to use on a per instance basis.
- Added config to specify which path the master interface is accessed under, allowing it to be proxied behind web-server.
+- Added config to specify which path the controller interface is accessed under, allowing it to be proxied behind web-server.
 - Added WebSocket usage statistics.
 - Added commands sent statistic.
 - Added Factorio server CPU and memory usage statistic.
@@ -37,18 +352,18 @@
  Previously this was handled by the playerManager plugin.
 - Added stripping of long paths in the Factorio server log.
 - Added option to configure maximum number of commands to send in parallel.
- Added option to auto start instances on slave startup.
- Added metric mapping of slave and instance ids to their names, allowing them to be displayed by name in queries that join with the mapping.
+- Added option to auto start instances on host startup.
+- Added metric mapping of host and instance ids to their names, allowing them to be displayed by name in queries that join with the mapping.
 - Added option to configure timeout for exported Prometheus metrics.
 - Added option to set address to bind HTTP(S) port to.
 - Added an overview of the installed plugins to the web interface.
- Added clusterioctl command to list plugins on the master server.
+- Added clusterioctl command to list plugins on the controller.
 - Added Player Auth plugin for logging in to the web interface by proving the ability to log in to a server as a given user.
 - Added Node.js based installer to simplify setting up a cluster.

 ### Changes

- Added error handling during master startup.
+- Added error handling during controller startup.
 - Factorio game and rcon port now defaults to a random port above 49151.
 - Removed unimplemented mods update command.
 - Fixed rcon password being generated with Math.random().
@@ -69,14 +384,14 @@
 - Removed factorio_version from config.
  The version installed is auto detected and used instead.
 - Removed the playerManager specific command CLI tools/delete_player.js.
- Creating an instance, assigning it to a slave, creating a save for an instance and starting an instance is now four separate commands.
- Removed oddball limits to slaves.json size.
- Moved slave specific and instance specific configuration into their own configuration files.
+- Creating an instance, assigning it to a host, creating a save for an instance and starting an instance is now four separate commands.
+- Removed oddball limits to hosts.json size.
+- Moved host specific and instance specific configuration into their own configuration files.
 - Removed unused binary option from plugin config.
 - Removed info and shout command from globalChat plugin - Removed mirrorAllChat and enableCrossServerShout configuration options for globalChat plugin.
 - Removed UPSdisplay plugin.
  UPS statistics is exported by the statistics exporter plugin.
- Master server now defaults to hosting on https on port 8443.
+- Controller now defaults to hosting on https on port 8443.
 - Renamed client to slave.
 - Removed rotation of factorio-current.log files.

@@ -86,7 +401,6 @@
  Breaks playerManager.
 - The masterIP and masterPort config entries has been merged into masterURL.
  Breaks discordChat, playerManager, serverSelect, trainTeleports and clusterioModel.
- Instance names can no longer be invalid Windows file names.
 - Removed config management from the command line and the server manager.
 - Moved ejs templates into views folder and changed their extension to .ejs.
  Breaks playerManager.
@@ -101,7 +415,7 @@
 - Removed the remoteCommands plugin and the old runCommand interface.
  Breaks playerManager and external tools sending commands.
 - Removed broken serverManager plugin.
- Removed fields info, time, rconPort, rconPassword, serverPort, unique, mods, instanceName, playerCount, mac, and meta from the slaves in the slave database.
+- Removed fields info, time, rconPort, rconPassword, serverPort, unique, mods, instanceName, playerCount, mac, and meta from the hosts in the host database.
 - Removed getInstanceName and lib/clusterTools.
  Breaks playerManager, and discordChat.
 - Removed the /api/rconPasswords, and /api/slaves endpoints.
@@ -110,7 +424,7 @@
  Breaks researchSync, and UPSdisplay.
 - Removed the hello event from the socket connection handshake.
  Breaks playerManager, trainTeleports, serverSelect, and discordChat
- Changed the format of database/slaves.json.
+- Changed the format of database/hosts.json.
 - Removed the output file subscription system.
  Breaks inventoryImports, playerManager, trainTeleports, serverSelect and researchSync.
 - Removed the factorioOutput hook from instance plugins.
@@ -135,17 +449,16 @@
 - Removed msBetweenCommands config option.
  The RCON is instead limited to 5 concurrent commands.
 - Removed allowRemoteCommandExecution config option.
-  Remote commands are always allowed with the move to master managing slaves/instances.
- Removed `--databaseDirectory`, `--masterPort`, and `--sslPort` command line arguments from the master server.
+  Remote commands are always allowed with the move to controller managing hosts/instances.
+- Removed `--databaseDirectory`, `--controllerPort`, and `--sslPort` command line arguments from the controller.
 - Implemented a new config system that replaces the old.
  Breaks all plugins.
 - Removed usage of socket.io entirely in favor of a plain WebSocket connection.
 - Renamed clusterioMod plugin to subspace_storage.
- Master no longer creates secret-api-token.txt.
+- Controller no longer creates secret-api-token.txt.
 - Removed automatic creation of self-signed TLS certificate.
 - Node.js versions below 12 are no longer supported.

-
 ## Version 1.2.4

 - Removed broken remote combinator signaling.
@@ -1,4 +1,4 @@
-FROM node:12 as subspace_storage_builder
+FROM node:20 as subspace_storage_builder
 RUN apt update && apt install -y git
 WORKDIR /
 RUN git clone https://github.com/clusterio/subspace_storage.git
@@ -6,7 +6,7 @@ WORKDIR /subspace_storage
 RUN npm install \
 && node build

-FROM node:12 as clusterio_builder
+FROM node:20 as clusterio_builder
 RUN apt update \
 && apt install -y wget \
 && mkdir /clusterio
@@ -15,25 +15,22 @@ RUN wget -q -O factorio.tar.gz https://www.factorio.com/get-download/latest/head
 # Copy project files into the container
 COPY . .

-RUN npm install \
-&& npx lerna bootstrap --hoist
+RUN pnpm install

 # Install plugins. This is intended as a reasonable default, enabling plugins to make for fun gameplay.
 # If you want a different set of plugins, consider using this as the base image for your own.
-#RUN npm install @clusterio/plugin-subspace_storage
-#RUN npx clusteriomaster plugin add @clusterio/plugin-subspace_storage
+#RUN pnpm install @clusterio/plugin-subspace_storage
+#RUN npx clusteriocontroller plugin add @clusterio/plugin-subspace_storage

-COPY --from=subspace_storage_builder /subspace_storage/dist/ /clusterio/sharedMods/
+COPY --from=subspace_storage_builder /subspace_storage/dist/ /clusterio/mods/

-# Build submodules (web UI, libraries, plugins etc)
-RUN npx lerna run build
 # Build Lua library mod
-RUN node packages/lib/build_mod --build --source-dir packages/slave/lua/clusterio_lib \
-&& mv dist/* sharedMods/ \
+RUN node packages/lib/build_mod --build --source-dir packages/host/lua/clusterio_lib \
+&& mv dist/* mods/ \
 && mkdir temp \
 && mkdir temp/test \
-&& cp sharedMods/ temp/test/ -r \
-&& ls sharedMods
+&& cp mods/ temp/test/ -r \
+&& ls mods

 # Remove node_modules
 RUN find . -name 'node_modules' -type d -prune -print -exec rm -rf '{}' \;
@@ -46,8 +43,7 @@ COPY --from=clusterio_builder /clusterio /clusterio
 WORKDIR /clusterio

 # Install runtime dependencies
-RUN npm install --production
-RUN npx lerna bootstrap -- --production --no-optional
+RUN pnpm install --production
 LABEL maintainer "danielv@danielv.no"

 FROM frolvlad/alpine-glibc AS clusterio_testing
@@ -58,6 +54,5 @@ COPY --from=clusterio_builder /clusterio /clusterio
 WORKDIR /clusterio

 # Install runtime dependencies
-RUN npm install
-RUN npx lerna bootstrap
-RUN npm install chalk semver
+RUN pnpm install
+RUN pnpm install chalk semver
@@ -12,7 +12,7 @@ Discord for development/support/play: https://discord.gg/5XuDkje

 Clusterio 2.0 is still in alpha, however the previous stable has been abandoned and is no longer supported.
 Despite being alpha it's reasonably stable now and there's no major breakages expected before a stable release of 2.0.
-If you are starting a new cluster it's highly recommended to use the 2.0 alpha.
+If you are starting a new cluster, it's highly recommended to use the 2.0 alpha.


 ### Ways to support me/the project:
@@ -33,12 +33,13 @@ If you are starting a new cluster it's highly recommended to use the 2.0 alpha.
  * [Windows setup](#windows-setup)
  * [MacOS setup](#macos-setup)
  * [Installing Plugins](#installing-plugins)
-* [Configure Master Server](#configure-master-server)
+* [Configure Controller](#configure-controller)
 * [Managing Factorio mods](#managing-factorio-mods)
 * [Setting up shared storage](#setting-up-shared-storage)
 * [Running Clusterio](#running-clusterio)
-* [Setting up remote slaves](#setting-up-remote-slaves)
+* [Setting up remote hosts](#setting-up-remote-hosts)
 * [Setting up clusterioctl](#setting-up-clusterioctl)
+* [Known issues](#known-issues)
 * [Common problems](#Common-problems)


@@ -49,7 +50,7 @@ It was previously best known for implementing cross server transfer and cloud st
 But this functionality has been pulled out of Clusterio into its own plugin for Clusterio named [Subspace Storage](https://github.com/clusterio/subspace_storage).

 By itself Clusterio doesn't change the gameplay in any way, you could even use Clusterio to manage completely vanilla Factorio servers.
-Plugins do the work of modding in the visible changes into the game, see the [Plugins section](#plugins) for ready made plugins you can install into a Clusterio cluster.
+Plugins do the work of modding in the visible changes into the game, see the [Plugins section](#plugins) for ready-made plugins you can install into a Clusterio cluster.


 ## Features
@@ -71,7 +72,7 @@ These are the plugins supported and maintained by the Clusterio developers:

 - [Global Chat](/plugins/global_chat/README.md): share the in-game chat between servers.
 - [Research Sync](/plugins/research_sync/README.md): synchronize research progress and technologies unlocked between servers.
- [Statistics Exporter](/plugins/statistics_exporter/README.md): collect in-game statistics from all the servers and makes it available to the Prometheus endpoint on the master server.
+- [Statistics Exporter](/plugins/statistics_exporter/README.md): collect in-game statistics from all the servers and makes it available to the Prometheus endpoint on the controller.
 - [Subspace Storage](https://github.com/clusterio/subspace_storage): Provide shared storage that can transport items between servers via teleport chests.
 - [Player Auth](/plugins/player_auth/README.md): Provides authentication to the cluster via logging into a Factorio server.
 - [Inventory Sync](/plugins/inventory_sync/README.md): Synchronizes your inventory between servers.
@@ -80,7 +81,7 @@ There's also plugins developed and maintained by the community:

 - [Discord Bridge](https://github.com/Hornwitser/discord_bridge) (@hornwitser/discord_bridge): Bridges chat between instances and Discord.
  By Hornwitser.
- [Server Select](https://github.com/Hornwitser/server_select/tree/clusterio-2.0) (@hornwitser/server_select): In-game GUI for connecting to other server in the cluster.
+- [Server Select](https://github.com/Hornwitser/server_select/tree/clusterio-2.0) (@hornwitser/server_select): In-game GUI for connecting to other servers in the cluster.
  Originally by Godmave, ported to 2.0 by Hornwitser.

 Want to make your own plugin?
@@ -89,23 +90,23 @@ Check out the documentation on [Writing Plugins](/docs/writing-plugins.md) for w

 ## Installation

-Clusterio runs on Node.js v12 and up, it's distributed via npm and comes with a guided install script.
-If you alread have a recent Node.js installed you can set it up in a new directory with.
+Clusterio runs on all LTS version of NodeJS, it is distributed via npm and comes with a guided install script.
+If you already have a recent Node.js installed, you can set it up in a new directory with:

    npm init "@clusterio"

-Otherwise see below for OS specific instructions.
-
+Otherwise see below for OS specific instructions.  
+Check out all our of decisions for [node, factorio, and operation support](/docs/decisions.md#supportability).

 ### Ubuntu setup

-1.  Install Node.js v12 or higher.
-    For 20.04 LTS or below the version of Node.js provided by the Ubuntu repos are too old and you will have to use the nodesource PPA, otherwise you may skip the first line.
+1.  Install Node.js v18 or higher.
+    Note the version of Node.js provided by the Ubuntu/debian repos are too old and you will have to use the nodesource PPA

-        wget -qO - https://deb.nodesource.com/setup_14.x | sudo -E bash -
-        sudo apt install nodejs
+        curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash - &&\
+        sudo apt-get install -y nodejs

-2.  Create a new directory and run the Clusterio installer:
+2.  Log in as the user you wish to install Clusterio as (do not use root), and then create a new directory and run the Clusterio installer:

        mkdir clusterio
        cd clusterio
@@ -113,14 +114,7 @@ Otherwise see below for OS specific instructions.

    Make sure to note down the admin authentication token it provides at the end as you will need it later.

-3.  If you chose to use local factorio directory for the Factorio installation then download the headless build of Factorio and unpack it:
-
-        wget -O factorio.tar.xz https://www.factorio.com/get-download/latest/headless/linux64
-        tar -xf factorio.tar.xz
-
-    To specify a version of Factorio to download replace "latest" in the URL with a version number like "1.0.0".
-
-4.  Optionally copy the generated systemd service files in `systemd` folder to `/etc/systemd/system/`.
+3.  Optionally copy the generated systemd service files in `systemd` folder to `/etc/systemd/system/`.


 **Ubuntu with Docker**
@@ -133,9 +127,9 @@ Clusterio has *very* limited support for using docker.

    sudo docker build -t clusterio --no-cache --force-rm clusterio

-	sudo docker run --name master -e MODE=master -p 1234:8080 -d -it --restart=unless-stopped danielvestol/clusterio
+	sudo docker run --name controller -e MODE=controller -p 1234:8080 -d -it --restart=unless-stopped danielvestol/clusterio

-	sudo docker run --name slave -e MODE=slave -e INSTANCE=world1 -v /srv/clusterio/instances:/clusterio/instances -p 1235:34167 -it --restart=unless-stopped danielvestol/clusterio
+	sudo docker run --name host -e MODE=host -e INSTANCE=world1 -v /srv/clusterio/instances:/clusterio/instances -p 1235:34167 -it --restart=unless-stopped danielvestol/clusterio

 The -v flag is used to specify the instance directory.
 Your instances (save files etc) will be stored there.
@@ -152,7 +146,7 @@ Your instances (save files etc) will be stored there.

    Make sure to note down the admin authentication token it provides at the end as you will need it later.

-3.  If you chose to use local factorio directory for the Factorio installation then download the Windows 64-bit zip package from https://www.factorio.com/download and extract it to the `factorio` folder in your clusterio installation folder.
+3.  If you chose to use local factorio directory for the Factorio installation, download the Windows 64-bit zip package from https://www.factorio.com/download and extract it to the `factorio` folder in your clusterio installation folder.


 ### MacOS Setup
@@ -167,12 +161,12 @@ Your instances (save files etc) will be stored there.

    Make sure to note down the admin authentication token it provides at the end as you will need it later.

-3.  If you chose to use local factorio directory for the Factorio installation you will need to obtain and copy a mac version of Factorio and unpack it to to the `factorio` folder in your clusterio installation folder.
+3.  If you chose to use local factorio directory for the Factorio installation, you will need to obtain and copy a mac version of Factorio and unpack it to the `factorio` folder in your clusterio installation folder.


 ### Installing Plugins

-For well known plugins you can select them during installation and no further steps are necessary to make them work.
+For well-known plugins you can select them during installation and no further steps are necessary to make them work.
 Installing plugins that are not offered by the installer consists of two steps.
 First install the package the plugin is provided by via npm, for example

@@ -180,96 +174,119 @@ First install the package the plugin is provided by via npm, for example

 Then tell clusterio that this plugin exists by adding it as a plugin.

-    npx clusteriomaster plugin add @clusterio/plugin-subspace_storage
+    npx clusteriocontroller plugin add @clusterio/plugin-subspace_storage

-This adds it to the default `plugin-list.json` file which in the shared folder setup is loaded by master, slave and ctl.
-If you have slaves or ctl installed on separate computers (or directories) then you need to repeat the plugin install process for all of them.
-The clusteriomaster, clusterioslave and clusterioctl commands has the plugin sub-command so you do not need to install clusteriomaster to add plugins, instead use the clusterio command you have available.
+This adds it to the default `plugin-list.json` file which in the shared folder setup is loaded by controller, host and ctl.
+If you have hosts or ctl installed on separate computers (or directories) then you need to repeat the plugin install process for all of them.
+The clusteriocontroller, clusteriohost and clusterioctl commands has the plugin sub-command so you do not need to install clusteriocontroller to add plugins, instead use the clusterio command you have available.

 For development purposes the `plugin add` command supports adding plugins by the absolute path to them, or a relative path that must start with either . or .. (which will then be resolved to an absolute path).


-## Configure Master Server
+## Configure Controller

-By default the master server will listen for HTTP on port 8080.
+By default the controller will listen for HTTP on port 8080.
 You can change the port used with the command

-    npx clusteriomaster config set master.http_port 1234
+    npx clusteriocontroller config set controller.http_port 1234

-When changing the port you will also need to change the address slaves connect with.
+When changing the port you will also need to change the address hosts connect with.
 For the standalone installation mode you can use

-    npx clusterioslave config set slave.master_url http://localhost:1234/
+    npx clusteriohost config set host.controller_url http://localhost:1234/

 If you plan to make your cluster available externally set the address
 that it will be accessible under with, for example

-    npx clusteriomaster config set master.external_address http://203.0.113.4:1234/
+    npx clusteriocontroller config set controller.public_url http://203.0.113.4:1234/

-Change the url to reflect the IP, protocol, and port the master server is accessible under, dns names are also supported.
-If you're planning on making the master server accessible on the internet it's recommended to set up TLS, see the [Setting Up TLS](/docs/setting-up-tls.md) document for more details.
+Change the url to reflect the IP, protocol, and port the controller is accessible under, dns names are also supported.
+If you're planning on making the controller accessible on the internet it's recommended to set up TLS, see the [Setting Up TLS](/docs/setting-up-tls.md) document for more details.

-You can list the config of the master server with the `npx clusteriomaster config list` command.
-See the [readme for @clusterio/master](/packages/master/README.md) for more information.
+You can list the config of the controller with the `npx clusteriocontroller config list` command.
+See the [readme for @clusterio/controller](/packages/controller/README.md) for more information.


 ## Managing Factorio mods

-Clusterio currently only provides a manual method for running mods on servers by copying them either to each instance's individual `mods` folder, or by copying them into a slave installation's `sharedMods` folder which will link/copy them to the `mods` folder of each instance on that slave if the file doesn't already exist in the `mods` folder for that instance.
-Mods are copied from `sharedMods` on Windows and symlinked on Linux, this means that when mods are removed from `sharedMods` the mods will also be removed from the instance's `mods` folder on Linux if it got there by being linked by Clusterio, but not on Windows.
+Mods in clusterio are managed as parts of modpacks. There is currently no mod portal integration, so you first need to navigate to the mods section of the web UI and upload your mods. You can then create a modpack from the uploaded mods by navigating to the mods page, hitting `create`. Once you have a modpack, you can assign it to an instance under Instance config -> Factorio -> Mod pack. You can also set a default modpack for new instances in the controller settings.

-For managing the mod settings the `mod-settings.dat` and `mod-list.json` files will also be linked/copied over if present in `sharedMods`, but since Factorio creates these files automatically it might be necessary to delete them from each instance's `mods` folder for changes to them in `sharedMods` to take effect.
+![Select mod pack for instance](docs/assets/config_select_mod_pack.png)

-Better remote management of mods is a planned feature.
+Mod settings can be managed under the modpack configuration page in the web UI. For mod settings to show, you first need to run an export. This is done by creating an instance with the modpack assigned, opening the instance page and pressing More -> Export data.
+
+![Export mod configuration data](docs/assets/export_mod_config_data.png)
+
+Once this is done, the mod settings will show up under the modpack configuration page.
+
+![Mod settings configuration in web interface](docs/assets/mod_settings_configuration.png)


 ## Setting up shared storage

-The chests teleporting items to and from the shared storage on the master server has been moved into the Subspace Storage mod and plugin.
-To get this to work you will need to install the Subspace Storage plugin and copy the [Subspace Storage mod](https://mods.factorio.com/mod/subspace_storage) and the [Clusterio Lib mod](https://mods.factorio.com/mod/clusterio_lib) into the `sharedMods` folder on each slave installation.
+The chests teleporting items to and from the shared storage on the controller has been moved into the Subspace Storage mod and plugin.
+To get this to work you will need to install the Subspace Storage plugin and copy the [Subspace Storage mod](https://mods.factorio.com/mod/subspace_storage) and the [Clusterio Lib mod](https://mods.factorio.com/mod/clusterio_lib) into the `sharedMods` folder on each host installation.

 Do not install the [Clusterio mod](https://mods.factorio.com/mod/clusterio), this was for the old 1.2.x version of Clusterio and is not compatible with Clusterio 2.0.


 ## Running Clusterio

-After completing the installation start up the master server and at least one slave separately.
-The installer provides the `run-master` and `run-slave` scripts to make this simple.
-Once the master process is running you can log into the web interface which is hosted by default on http://localhost:8080/ (adjust the port number if you changed it), use the admin authentication token provided from the installation to log in.
+After completing the installation start up the controller and at least one host separately.
+The installer provides the `run-controller` and `run-host` scripts to make this simple.
+Once the controller process is running you can log into the web interface which is hosted by default on http://localhost:8080/ (adjust the port number if you changed it), use the admin authentication token provided from the installation to log in.

-The basics of setting up a Factorio server from the web interface is to create an instance, assign it to a slave and then click start.
+The basics of setting up a Factorio server from the web interface is to create an instance, assign it to a host and then click start. You can also use the "Connect via Steam" button to launch Factorio directly and connect to the server using Steam's protocol handler.

 ### Running via Systemd

-The install script creates systemd service scripts for clusteriomaster and clusterioslave (if applicable) to start up as the user than ran the installer.
-If you have copied these files over to `/etc/systemd/system/` then you can startup clusterio as a background service using:
+The install script creates systemd service scripts for clusteriocontroller and clusteriohost (if applicable) to start up as the user than ran the installer.
+If you have copied these files over to `/etc/systemd/system/` then you can startup Clusterio as a background service using:
    
 #### To start as a service run:
 
-    sudo systemctl start clusteriomaster # for the master server
-    sudo systemctl start clusterioslave # for each server hosting a slave
+    sudo systemctl start clusteriocontroller # for the controller
+    sudo systemctl start clusteriohost # for each physical server intended to host Factorio servers

 #### To automatically get it to start on boot:
 
-    sudo systemctl enable clusteriomaster # for the master server
-    sudo systemctl enable clusterioslave # for each server hosting a slave
+    sudo systemctl enable clusteriocontroller # for the controller
+    sudo systemctl enable clusteriohost # for each physical server intended to host Factorio servers


-## Setting up remote slaves
+## Setting up remote hosts

-Run the installer as described in the installation section and choose "Slave only" as the operating mode to install, it'll ask for a master URL and an authentication token.
-The URL is the same as what is needed to connect to the web interface, and the athentication token can be generated on the Slaves page in the web interface.
-Once you start up the slave it should show up in the Slaves list and be available for assigning and running instances on.
+Run the installer as described in the installation section and choose "Host only" as the operating mode to install, it'll ask for a controller URL and an authentication token.
+The URL is the same as what is needed to connect to the web interface, and the authentication token can be generated on the Hosts page in the web interface.
+Once you start up the host it should show up in the Hosts list and be available for assigning and running instances on.


 ## Setting up clusterioctl

-There's a command line interface available for Clusterio which is installed separately with the same installer as for the master and slave.
-Run the installer as described in the installation section and choose "Ctl only" as the operating mode to install, you can do this in the same directory as you have installed other clusterio component(s) to.
-The installer will ask for a master URL and an authentication token, these are the same as you would use to connect to the web interface.
-If you want to use a different user for the command line interface you can generate an authentication token for an existing user with
+There's a command line interface available for Clusterio which is installed separately with the same installer as for the controller and host.
+Run the installer as described in the installation section and choose "Ctl only" as the operating mode to install, you can do this in the same directory as you have installed other Clusterio component(s) to.
+The installer will ask for a controller URL and an authentication token, these are the same as you would use to connect to the web interface.
+If you want to use a different user for the command line interface, you can generate an authentication token for an existing user with

-    npx clusteriomaster bootstrap generate-user-token <username>
+    npx clusteriocontroller bootstrap generate-user-token <username>
+
+
+## Known Issues
+
+- When the `server_select` plugin is installed you may see `[error] Unhandled event server_select:UpdateInstancesEvent` logged when starting an instance.
+  This should be ignored as it does not indicate an error occured.
+- After updating Factorio you may get the error `Error: Expected empty response but got "Cannot execute command. Error: [string "clusterio_private.update_instance(..."]:1: attempt to index global 'clusterio_private' (a nil value)?` on instance start.
+  This is due to Factorio applying a migration replacing the patched content of the save with the original scenario, attempting to start the instance again should resolve the issue.
+- In the mod pack view of the web interface the "base" mod is displayed with an error complaining about the mod being missing from the controller storage.
+  This is due to the "base" mod currently not being connectly handled as a built-in mod to Factorio in the web interface, this error message should be ignored.
+- After migrating from Alpha 13 to Alpha 14 running an instance data export fails with the error `Upload failed: 401 Unauthorized` due to the host token being issued to a slave.
+  To workaround this find the id of the host in the host config and generate a new host token with the same id.
+  Stop the host and replace the value of the `host.controller_token` field in `config-host.json` with the new host token before starting it up again.
+- After migrating from Alpha 13 to Alpha 14 you get kicked out from the web interface due to the master to controller rename.
+  If you don't have the authentication token readily available you can manually migrate the token by opening the Inspect/Developer Tools on the page and running the following piece of JavaScript in the Console:
+  ```
+  localStorage.controller_token = localStorage.master_token
+  ```


 ## Common problems
@@ -283,7 +300,7 @@ According to [this link](https://askubuntu.com/questions/839520/open-port-443-fo

    sudo setcap 'cap_net_bind_service=+ep' $(readlink -f $(which node))

-### Portforwarding doesn't work on the master server when running under WSL
+### Port forwarding doesn't work on the controller when running under WSL

 If you follow the ubuntu guide on WSL (Windows Subsystem for Linux, Bash on Ubuntu on Windows specifically), you will find that the website works on localhost and on your local ip, but not on the global ip.
 This is also true when you correctly port-forwarded the correct ports.
@@ -0,0 +1,116 @@
+/**
+ * Clean the repository of build and execution artifacts.
+ *
+ * clean: A quick clean that removes all build artifacts making the output safe to publish
+ * clean-tests: Removes all build and test artifacts should not be required if tests are setup correctly.
+ * clean-all: Removes all build, test, and execution artifacts. Including cluster config and logs!
+ */
+
+"use strict";
+const path = require("path");
+const fs = require("fs-extra");
+const yargs = require("yargs");
+
+const npmPackage = require("./package.json");
+const workspaces = npmPackage.workspaces
+	.map(p => p.slice(0, -2))
+	.filter(p => !p.includes("external_plugins"));
+
+let DRY = false;
+
+/**
+ * Attempt to remove a file / directory if it exists.
+ *
+ * @param {string} filePath The path to remove.
+ */
+async function tryRemove(filePath) {
+	if (await fs.exists(filePath)) {
+		// eslint-disable-next-line no-console
+		console.log(filePath);
+	}
+
+	if (!DRY) {
+		await fs.remove(filePath);
+	}
+}
+
+/**
+ * Removes all build artifacts
+ */
+async function removeBuildArtifacts() {
+	const tasks = [];
+
+	for (const workspace of workspaces) {
+		const basePath = path.resolve(workspace);
+		const packages = await fs.readdir(basePath);
+		for (const packageName of packages) {
+			tasks.push(
+				tryRemove(path.join(basePath, packageName, "dist"))
+			);
+		}
+	}
+
+	await Promise.all(tasks);
+}
+
+/**
+ * Removes all test artifacts
+ */
+async function removeTestArtifacts() {
+	const artifacts = [
+		".nyc_output", "coverage", "temp", "static",
+	];
+
+	await Promise.all(artifacts.map(artifact => tryRemove(path.resolve(artifact))));
+}
+
+/**
+ * Removes all execution artifacts
+ */
+async function removeExecutionArtifacts() {
+	const artifacts = [
+		"database", "instances", "logs", "mods",
+		"config-control.json", "config-controller.json", "config-host.json",
+		"FactorioAdminToken.txt", "plugin-list.json",
+	];
+
+	await Promise.all(artifacts.map(artifact => tryRemove(path.resolve(artifact))));
+}
+
+/**
+ * Main function for this script
+ */
+async function main() {
+	await yargs
+		.scriptName("clean")
+		.usage("$0 <command> [options]")
+		.option("dry", {
+			nargs: 0,
+			describe: "Will not delete any files",
+			default: false,
+			type: "boolean",
+		})
+		.command("all", "Remove all artifacts", () => {}, argv => {
+			DRY = argv.dry;
+			removeBuildArtifacts();
+			removeTestArtifacts();
+			removeExecutionArtifacts();
+		})
+		.command("tests", "Remove all build and test artifacts", () => {}, argv => {
+			DRY = argv.dry;
+			removeBuildArtifacts();
+			removeTestArtifacts();
+		})
+		.command("fast", "Remove all build artifacts", () => {}, argv => {
+			DRY = argv.dry;
+			removeBuildArtifacts();
+		})
+		.demandCommand(1, "You need to specify a command to run")
+		.strict()
+		.parse();
+}
+
+// Run main if started from command line
+if (module === require.main) {
+	main();
+}
@@ -0,0 +1,6 @@
+coverage:
+  status:
+    project:
+      default:
+        if_ci_failed: success
+        informational: true
@@ -1,9 +1,9 @@
 version: '3'

 services:
-  master:
+  controller:
    build: .
-    command: npx clusteriomaster run
-  slave:
+    command: npx clusteriocontroller run
+  host:
    build: .
-    command: npx clusterioslave run
+    command: npx clusteriohost run
@@ -11,8 +11,8 @@ Links represents one side of a two way communication pipe, connectors deal with
 The Link class represents one side of a two way communication channel where the actual communication is done by a connector associated with the link.
 The link also knows what the endpoint types it's connected to are via the source and target attributes.

-The endpoint types currently implemented are master, slave, instance, and control.
-Although slave and instances run in the same Node.js program they use virtual links to communicate between them in order to simplify the communication architecture.
+The endpoint types currently implemented are controller, host, instance, and control.
+Although host and instances run in the same Node.js program they use virtual links to communicate between them in order to simplify the communication architecture.

 Upon creation the link will register with the connector in order to receive and process messages from it.
 The messages received are validated using the validator registered for the type of the message.
@@ -30,7 +30,7 @@ There's also the virtual connector which lets two links in the same program be c
 ## Message

 There's two types of messages currently implemented apart from the Link builtin close message and that's Request and Event.
-The builtin messages are defined in [packages/lib/link/messages.js](/packages/lib/link/messages.js) and are attached to links via the attachAllMessages function, which is usally called in the Link subclass constructor.
+The builtin messages are defined in [packages/lib/src/link/messages.ts](/packages/lib/src/link/messages.ts) and are attached to links via the attachAllMessages function, which is usally called in the Link subclass constructor.

 The messages define which links they are valid on and only attaches handlers for those links.
 There's also a forwarding mechanism for when a request or event is to be forwarded another hop.
@@ -2,36 +2,34 @@

 <sub>This document describes the implementation and inner working of the configuration system in Clusterio, and unless you're developing Clusterio it's probably not going to be very useful for you.</sub>

-Clusterio uses a group based configuration system to manage settings for the master server, instances, slaves, and the clusterioctl utility.
-Plugins get their own config group for the master server and instances which they can add their own fields to.
-The fields are defined early in the startup, and the groups and their fields for disabled plugins will still be created.
+Clusterio uses a field based configuration system to manage settings for the controller, instances, hosts, and the clusterioctl utility.
+Plugins can add their own config fields for the controller and instances configs.
+The fields are defined early in the startup, and fields for disabled plugins will still be created.

-The built-in config groups and their fields are defined in [packages/lib/config/definitions.js](/packages/lib/config/definitions.js) while plugins can add their own config groups to the `MasterConfigGroup` and `InstanceConfigGroup` properties of the `info.js` export using subclasses of `PluginConfigGroup`.
-The plugin group has the enabled field pre-defined on it, and it's used to enable/disable plugins.
+The built-in config fields are defined in [packages/lib/src/config/definitions.ts](/packages/lib/src/config/definitions.ts) while plugins can add their own config field definitions to the `controllerConfigFields` and `instanceConfigFields` properties of the `plugin` export.
+A `<plugin_name>.load_plugin` field is automatically created for each plugin and it's used to enable/disable the loading plugins on startup.


 ## Defing Fields

-Fields are defined using the `define` class method on group classes after the groupName have been set and before the class has been finalized.
-The `define` method takes an object as argument with the following properties:
+Fields are defined as POJS object properties where the name of the property correspond to the name of the configuration field.
+The property name is the primary way the field is accessed both in code and on the command line, as such it should follow the lower\_case\_underscore style and consist of a group name and a field name separated by a dot.
+For plugins the group name is the name of the plugin, e.g., the `level` field of the `foo_frobber` plugin would be named `foo_frobber.lavel`.

 **access**:
    The locations this config field can be read and modified from.
-    This is an array of strings which can contain the values `"master"`, `"slave"` and `"control"`.
+    This is an array of strings which can contain the values `"controller"`, `"host"` and `"control"`.
    If a party is missing in this array then that party will not receive the value of this field when the config is shared, and will be unable to modify the field.
-    Takes the value of `defaultAccess` set on the config group class if not passed.
-    Note that instance config groups should have both `"master"` and `"slave"` for all of its fields or unexpected behaviour may occur.
+    If not set any party can read and modify this config entry.
+    Note that instance config fields should have both `"controller"` and `"host"` or unexpected behaviour may occur.

 **type**:
    The type of config value this field will support.
    The supported values are boolean, string, number, and object, and if an attept is made to set the field to a value that is not of the right type it will be reject unless it's a string that can be converted to the right type.

-**name**:
-    Name of the configuration field, this is the primary way the field is accessed, both in code and on the command line.
-    As such it should follow the lower\_case\_underscore style and not contain any spaces or dots.
-
 **title** (optional):
    Text used to identify the config field in user interfaces.
+    This should not contain the grouping used in `name`.

 **description** (optional):
    Text used to describe the config field in user interfaces.
@@ -44,7 +42,7 @@ The `define` method takes an object as argument with the following properties:
    True if this field can be set to null.
    Defaults to false.

-**initial_value** (optional if optional is true):
+**initialValue** (optional if optional is true):
    Value this config field should take in a newly initialized config.
    This can also be an async function returning the value to use.

@@ -53,26 +51,26 @@ If the value for a field stored in on disk somehow ends up being invalid the fie

 ## Accessing Fields

-On the Config instance there's two ways to access fields: through the set and get methods using dot notation.
+On the Config instance there's two ways to access fields: through the set and get methods.
 E.g.:

    let value = configInstance.get("group.field");

-Or by getting the group first and then calling set or get on that.
+Or by through the raw fields object (which is best avoided as it doesn't check types or whether the accessed field exists).
 E.g.:

-    let value = configInstance.group("group").get("field")
+    let value = configInstance.fields["group.field"]

-The set method takes an extra argument, which is the value to set the field to.
-If the value is not valid this will throw an InvalidValue exception, if the group or field doesn't exist it will throw an InvalidField exception.
+The set method also takes an extra argument, which is the value to set the field to.
+If the value is not valid this will throw an InvalidValue exception, if the field doesn't exist it will throw an InvalidField exception.


 ## Config Lifecycle

 Values for all config fields are created when the config is initialized, as well as for any fields with missing values when a config is loaded.
-Once a field has a value it is never automatically removed, even if the field or group it was part of no longer exists.
+Once a field has a value it is never automatically removed, even if the field it was part of no longer exists.
 This ensures that plugin configuration is not lost should the server be started up without the plugins that defined the configuration installed.

-For instance configs, they are kept on the master server and serialized and sent over to the relevant slaves on startup.
-This makes it possible to edit instance configs when the slave the instance is on is offline.
-A copy is also stored in the instance directory on the slave, and this config will be deliverd to the master server on slave startup, which enables instances to be copied between clusters as long as their IDs are unique.
+For instance configs, they are kept on the controller and serialized and sent over to the relevant hosts on startup.
+This makes it possible to edit instance configs when the host the instance is on is offline.
+A copy is also stored in the instance directory on the host, and this config will be deliverd to the controller on host startup, which enables instances to be copied between clusters as long as their IDs are unique.
@@ -1,9 +1,9 @@
 # Configuration


-## Master Configuration
+## Controller Configuration

-### master.name
+### controller.name

 Name of the cluster.
 Used to distinguish it from other clusters and is prepended to the name of servers in the server list.
@@ -11,37 +11,37 @@ Used to distinguish it from other clusters and is prepended to the name of serve
 Defaluts to "Your Cluster".


-### master.database_directory
+### controller.database_directory

 Directory used to store cluster data to.
-Needs to be writeable by the master server.
+Needs to be writeable by the controller.
 This is also used by plugins to store its data.

 Defaults to "database".


-### master.http_port
+### controller.http_port

 Port to host HTTP server on.
 If set to null no HTTP server will be exposed.
-At least one of this and master.https_port needs to be set to a port.
+At least one of this and controller.https_port needs to be set to a port.

 Defaults to 8080.


-### master.https_port
+### controller.https_port

 Port to host HTTPS server on.
-Uses master.tls_certificate and master.tls_private_key as the certificate and private key for the HTTPS server.
+Uses controller.tls_certificate and controller.tls_private_key as the certificate and private key for the HTTPS server.
 If set to null no HTTPS server will be exposed.
-At least one of this and master.http_port needs to be set to a port.
+At least one of this and controller.http_port needs to be set to a port.

 See the [Setting up TLS](/docs/setting-up-tls.md) document for a guide to setting up HTTPS with Clusterio.

 Defaults to null.


-### master.bind_address
+### controller.bind_address

 IP address to bind the HTTP and HTTPS ports on.
 Useful to limit which interface to accept connections from.
@@ -51,39 +51,39 @@ interfaces.
 Defaults to null.


-### master.external_address
+### controller.public_url

-External address the master server is accessible on.
-Currently only used for `clusteriomaster bootstrap create-ctl-config` in order to give the right url to connect to.
+Public address the controller is accessible on.
+Currently only used for `clusteriocontroller bootstrap create-ctl-config` in order to give the right url to connect to.
 This should be a full URL ending with a /.

 Defaults to null meaning assume localhost.


-### master.tls_certificate
+### controller.tls_certificate

-Path to TLS certificate to use for the HTTPS server when master.https_port is configured.
+Path to TLS certificate to use for the HTTPS server when controller.https_port is configured.

 Defaults to "database/certificates/cert.crt".


-### master.tls_private_key
+### controller.tls_private_key

-Path to TLS private key to use for the HTTPS server when master.https_port is configured.
+Path to TLS private key to use for the HTTPS server when controller.https_port is configured.

 Defaults to "database/certificates/cert.key".


-### master.auth_secret
+### controller.auth_secret

-Base64 encoded authentication secret used to verify tokens issued to slaves, users, and sessions.
+Base64 encoded authentication secret used to verify tokens issued to hosts, users, and sessions.
 This should contain 256 bytes of random data, and if changed will cause all tokens become invalid.
 Keep this secret if leaked an attacker could easily compromise the cluster.

 Defaults to null which means generate a secure secret on startup.


-### master.heartbeat_interval
+### controller.heartbeat_interval

 Interval in seconds heartbeats are sent out at for WebSocket connections.
 If a WebSocket connection hasn't received a heartbeat in 2 times the heartbeat interval it will be considered stale and closed.
@@ -92,33 +92,33 @@ A lower value means less time between connections going stale and them being clo
 Defaults to 15.


-### master.session_timeout
+### controller.session_timeout

 Time in seconds from the connection is closed following a heartbeat timeout until the session is invalidated and data loss occurs.
 A higher timeout gives more time for a client to recconect and resume an active session over a connection that was dropped, but also leads to stale connections taking longer to clear out.
-In the case of the master or client crashing the data loss is unavoidable.
+In the case of the controller or client crashing the data loss is unavoidable.

-Value should not be less than the configured `max_reconnect_delay` of the clients and it should be greater than 2 times `master.heartbeat_interval`.
+Value should not be less than the configured `max_reconnect_delay` of the clients and it should be greater than 2 times `controller.heartbeat_interval`.
 Defaults to 60.


-### master.metrics_timeout
+### controller.metrics_timeout

-Timeout in seconds before a call to gather metrics from a slave times out.
+Timeout in seconds before a call to gather metrics from a host times out.
 This should be less than both the timeout and collection interval configured for the collection job in Prometheus.

 Defaults to 8.


-### master.stream_timeout
+### controller.stream_timeout

-Timeout in seconds for proxy streams through the master that has been created but is not yet sending data to be automatically closed.
+Timeout in seconds for proxy streams through the controller that has been created but is not yet sending data to be automatically closed.
 Streams that have started sending data before this timeout is not affected.

 Defaults to 15.


-### master.default_role_id
+### controller.default_role_id

 Role to automatically grant to new users.
 If null no role is granted.
@@ -128,30 +128,30 @@ Defaults to 1 which correspond to the default Player role.

 ### <plugin_name>.load_plugin

-Whether to load the plugin on the master server.
-Plugins not loaded on the master server will not be loaded on instances.
+Whether to load the plugin on the controller.
+Plugins not loaded on the controller will not be loaded on instances.

 Defaults to true.


-## Slave Configuration
+## Host Configuration

-### slave.name
+### host.name

-Name of the slave.
-Shows up in slave lists and is used to reference this slave in the clusterioctl command line interface.
+Name of the host.
+Shows up in host lists and is used to reference this host in the clusterioctl command line interface.

-Defaults to "New Slave".
+Defaults to "New Host".


-### slave.id
+### host.id

-Immutable numeric id of the slave which uniquely identifies this slave in the cluster.
+Immutable numeric id of the host which uniquely identifies this host in the cluster.

 Defaults to a random 31 bit number.


-### slave.factorio_directory
+### host.factorio_directory

 Directory to look for the Factorio server(s) in.
 This can either point to a Factorio server directory, or to a directory containing multiple versions of the Factorio server.
@@ -159,48 +159,48 @@ This can either point to a Factorio server directory, or to a directory containi
 Defaults to "factorio".


-### slave.instances_directory
+### host.instances_directory

 Directory to store instances in.
-One sub-directory will be created in it for each instance assigned to this slave and these sub-directories will contain logs, saves, and various auto generated configuration files for the instances.
+One sub-directory will be created in it for each instance assigned to this host and these sub-directories will contain logs, saves, and various auto generated configuration files for the instances.

 Defaults to "instances".


-### slave.master_url
+### host.controller_url

-URL to connect to the master server to.
+URL to connect to the controller to.

 Defaults to "http://localhost:8080/".


-### slave.master_token
+### host.controller_token

-Access token used for authenticating with the master server.
-You can generate an access token with `clusterioctl slave generate-token --id <slave-id>`, or use the `clusterioctl slave create-config` to create a new slave config with the correct url and token in it.
+Access token used for authenticating with the controller.
+You can generate an access token with `clusterioctl host generate-token --id <host-id>`, or use the `clusterioctl host create-config` to create a new host config with the correct url and token in it.

 Defaults to "enter token here".


-### slave.tls_ca
+### host.tls_ca

-Path to certificate in PEM format to use for validating a TLS connection to the master server.
-If you have a self signed certificate on the master server you will need to copy the certificate to your slaves and set it as the certificate authority with this option.
+Path to certificate in PEM format to use for validating a TLS connection to the controller.
+If you have a self signed certificate on the controller you will need to copy the certificate to your hosts and set it as the certificate authority with this option.

 Defaults to null meaning use Node.js's default set of trusted certificate authorities.


-### slave.public_address
+### host.public_address

-External address instances hosted on this slave can be accessed on.
+External address instances hosted on this host can be accessed on.
 This is used by plugins like Server Select to give the correct address to switch between instances in-game.

 Defaults to "localhost".


-### slave.max_reconnect_delay
+### host.max_reconnect_delay

-Maximum delay in seconds to wait after connection to the master server is dropped before attempting to reconnect to it.
+Maximum delay in seconds to wait after connection to the controller is dropped before attempting to reconnect to it.
 The actual delay on each reconnect will be a random number between 0 and this configured value to avoid all clients trying to reconnect at the same time.

 Defaults to 60.
@@ -222,19 +222,19 @@ Imutable numeric id of the instance which uniquely identifies this instance in t
 Defaluts to a random 31 bit integer.


-### instance.assigned_slave
+### instance.assigned_host

-Slave this instance is assigned to.
+Host this instance is assigned to.
 To change this you need to use the separate assign instance interface.
-After being assigned to a slave the directory for the instance is created on the slave.
+After being assigned to a host the directory for the instance is created on the host.

 Defaults to null meaning not assigned.


 ### instance.auto_start

-If enabled start this instance when the slave it is assigned to is started up.
-Does not affect start or stop of the instance while the slave is running.
+If enabled start this instance when the host it is assigned to is started up.
+Does not affect start or stop of the instance while the host is running.

 Defaults to false.

@@ -242,7 +242,7 @@ Defaults to false.
 ### factorio.version

 Version of Factorio to use for this instance.
-Can be a version like "1.0.0" or special string "latest" meaning the latest version of Factorio found on the slave.
+Can be a version like "1.0.0" or special string "latest" meaning the latest version of Factorio found on the host.

 Defaults to "latest".

@@ -271,6 +271,19 @@ If null a random secure password is generated and used each time the instance st
 Defaults to null.


+### player_online_autosave_slots
+
+Keeps a separate pool for autosaves where at least on player has been online since the previous autosave was done.
+This requires regular autosaving to be enabled and will rename autosaves to `_autosave_poN.zip` (where N is a slot number) whenever a player has been online for that save.
+The slot numbers start at 1, are incremented by 1 after each autosave that is renamed and reset back to 1 whenever this value is exceeded.
+Note that this value should be set to a higher value than the value of `autosave_slots` in `factorio.settings`.
+Useful for preventing the loss of all progress when nobody is around on always online servers with auto pause disabled.
+
+If 0 no autosave renaming takes place.
+
+Defaults to 5.
+
+
 ### factorio.enable_save_patching

 Whether to use save patching or not.
@@ -370,39 +383,39 @@ Defaults to 5.
 ### <plugin_name>.load_plugin

 Whether to load the given plugin on the instance.
-Note that plugins need to be loaded on the master server in order for them to be loaded on instances.
+Note that plugins need to be loaded on the controller in order for them to be loaded on instances.

 Defaults to true.


 ## Control Configuration

-### control.master_url
+### control.controller_url

-URL to connect to the master server to.
+URL to connect to the controller to.

 Defaults to null meaning complain about it not being set and exit.


-### control.master_token
+### control.controller_token

-Access token used for authenticating with the master server.
-You can generate an access token with `clusteriomaster bootstrap generate-user-token <username>`, or use the `clusteriomaster bootstrap create-ctl-config <username>` to create a new ctl config with the correct url and token in it.
+Access token used for authenticating with the controller.
+You can generate an access token with `clusteriocontroller bootstrap generate-user-token <username>`, or use the `clusteriocontroller bootstrap create-ctl-config <username>` to create a new ctl config with the correct url and token in it.

 Defaults to null meaning complain about it not being set and exit.


 ### control.tls_ca

-Path to certificate in PEM format to use for validating a TLS connection to the master server.
-If you have a self signed certificate on the master server you will need to copy the certificate to the computer you run clusterctl from and set it as the certificate authority with this option.
+Path to certificate in PEM format to use for validating a TLS connection to the controller.
+If you have a self signed certificate on the controller you will need to copy the certificate to the computer you run clusterctl from and set it as the certificate authority with this option.

 Defaults to null meaning use Node.js's default set of trusted certificate authorities.


 ### control.max_reconnect_delay

-Max duration in seconds to wait before attempting to reconnect with the master server after the connection is dropped.
+Max duration in seconds to wait before attempting to reconnect with the controller after the connection is dropped.
 The actual delay on each reconnect will be a random number between 0 and this configured value to avoid all clients trying to reconnect at the same time.

 Defaults to 60.
@@ -3,6 +3,8 @@
 You are probably reading this because you want to contribute code to Clusterio.
 Great!  We need people like you.
 Though we have some conventions and workflows that we kindly ask you to follow.
+We have included all the pratical considerations in this document.
+Although, we recomend checking out out our [past decisions](/docs/decisions.md) if you have the time.


 ## Contents
@@ -15,14 +17,15 @@ Though we have some conventions and workflows that we kindly ask you to follow.
    - [Editing your Feature Branch](#editing-your-feature-branch)
    - [Resolving Merge Conflicts](#resolving-merge-conflicts)
    - [Updating Your GitHub Fork](#updating-your-github-fork)
+    - [Publishing releases to npm](#publishing-releases-to-npm)
 - [Changelog](#changelog)
 - [Supported Node.js and Factorio Version](#supported-node.js-and-factorio-version)
 - [Code Style](#code-style)
    - [Naming Style](#naming-style)
+    - [Units](#units)
    - [Indenting](#indenting)
    - [Line Length](#line-length)
    - [Markdown](#markdown)
- [Pushing releases to npm](#pushing-releases-to-npm)


 ## Workflow
@@ -49,12 +52,10 @@ Do not run `git pull upstream` it will mess thing up!

 ### Setting up the Development Environment

-The project is organized into several packages that are all managed through Lerna.
-In order to get the development environment up and running you will need to run the following commands:
+The project is organized into several packages that are all tied together using pnpm's workspace feature.
+In order to get the development environment up and running you will need to run the following command:

-    npm install
-    npx lerna bootstrap --hoist
-    npx lerna run build
+    pnpm install

 This installs dependencies needed by tests and links the packages up so they work from the git work tree.
 To start a cluster from the repo you will first need to initialize it, this can be done using the installer:
@@ -70,24 +71,30 @@ The `plugins/` directory contains the core plugins for the project and can be ad

 The documentation uses the binaries provided by the packages, but for the development environment you will need to call the packages directly:

-    npx clusteriomaster -> node packages/master
-    npx clusterioslave -> node packages/slave
+    npx clusteriocontroller -> node packages/controller
+    npx clusteriohost -> node packages/host
    npx clusterioctl -> node packages/ctl

+By default node does not enable source maps, to get stack traces pointing to the `.ts` files you will need to pass `--enable-source-maps` to `node` or set the environment variable `NODE_OPTIONS=--enable-source-maps`.
+
 Note that to use `clusterioctl` you will have to create a control config first:

-    node packages/master bootstrap create-ctl-config [admin-user]
+    node packages/controller bootstrap create-ctl-config [admin-user]

-Once you've set up the cluster you can use `node packages/master run` to run the master server and `node packages/slave run` to run the slave which connects to the master server.
+Once you've set up the cluster you can use `node packages/controller run` to run the controller and `node packages/host run` to run the host which connects to the controller.

-For web development on the master there are also the following flags.
+When editing TypeScript files ran by Node.js you need to run `pnpm build` to compile the files to JavaScript before restarting the controller/host/ctl for changes take effect.
+To have TypeScript watch for changes and rebuild immediadly you may run `pnpm watch` instead.
+
+For web development on the controller there are also the following flags:

 `--dev` - Recompile the `web_ui` package on the fly providing live reloading of it.

 `--dev-plugin [name]` - Recompile the web module for the given plugin on the fly proving live reloading of it.

 These options can be combined and multiple plugins can be actived for dev mode.
-Note that webpack is configured to delete the web interface build when using these options, so you will have to run `npx lerna run build` before you start the master without these flags again.
+Keep in mind if you're working on external plugins the `--dev-plugin` option is likely to only work if the plugin is placed inside the `external_plugins` directory and its dependencies are installed with pnpm as part of the clusterio repository workspace.
+Note that webpack is configured to delete the web interface build when using these options, so you will have to run `pnpm run -r --if-present prepare` before you start the controller without these flags again.


 ### Starting a Feature Branch
@@ -113,8 +120,8 @@ But it's nice to have its name be somewhat descriptive of what it implements.
 There's automated tests and linting setup for the project.
 Please do add tests for any code you add and run both:

-    npm run test
-    npm run lint
+    pnpm run test
+    pnpm run lint

 To check that your changes pass the integration tests as well as the ESLint rules set up for the project.

@@ -173,48 +180,65 @@ Fetch the main repository directly as described above and base your feature bran
 GitHub has no interface or functionality for keeping the branches in your fork up to date with the branches in the main repository and there is no point in doing this for our feature branch based workflow.


+### Publishing releases to npm
+
+For publishing new releases see [package release workflow](./release-workflow.md#packages).
+
 ## Changelog

 There's a [Changelog](../CHANGELOG.md) in the root of the project.
 If you make changes that are visible to users of this project you should add an entry to the changelog describing what has changed.
-The format of this log should be self explanatory, please follow it carefully.
+The format of this log should be self explanatory, please follow it carefully. Please make sure to document any [breaking changes](/docs/decisions.md#breaking-changes).


 ## Supported Node.js and Factorio Versions

-Clusterio run on Node.js v12 and up, make sure to check that the Node builtin API's and npm packages you use are supported on these versions.
-The GitHub Actions tests are run on whatever version of Node.js v12, v14, and v16 is the default.
+Clusterio run on Node.js v18 and up, make sure to check that the Node builtin API's and npm packages you use are supported on these versions.
+The GitHub Actions tests are run on whatever version of Node.js v18 and v20 is the default.

 For Factorio Clusterio 2.0 aims to support version 0.17.69 and up, including the latest experimental release.
 It's recommended that you use the lua API reference for 0.17.69, as there's no information on what version Factorio API's were introduced in.
 The GitHub Actions tests are run against the latest experimental release.

+Check out all our of decisions for [node, factorio, and operation support](/docs/decisions.md#supportability).
+

 ## Code Style

 The style of the code is a bit of a mixed bag at the moment.
 But there are at least a few things that have been agreed upon.
-
+See our [decisions document](/docs/decisions.md) for justifcations.

 ### Naming style

 JavaScript variables in general uses camelCase.
 The exception is for classes/constructors which use PascalCase and variables destructured from over the wire objects.

-Fields in configs and messages sent over links uses lowercase_underscore.
+Fields in configs uses lowercase_underscore.

 JavaScript files are named using lowercase_underscore for files that export multiple items.
 Files containing and exporting a single class should be named the same as the class in PascalCase.

-Imported modules from the lib package are prefixed with lib to make them easier to distinguish, as the names tend to be very generic.
+Relative imports in lib package are prefixed with lib to make them easier to distinguish, as the names tend to be very generic.
 E.g.:

-    const libLink = require("@clusterio/lib/link");
-    const libLuaTools = require("@clusterio/lib/lua_tools");
+    const libLink = require("./link");
+    const libLuaTools = require("./lua_tools");

+Note that no sub-modules of the lib package is imported directly from the outside of it with the exception of `build_mod`.

 For lua code lowercase_underscore is used for everything.

+### Units
+
+When naming variables whos unit is not a base SI unit like seconds or metres the unit used should be suffixed in the variable name:
+E.g.:
+
+    const startTimeMs = date.now();
+    const endNs = process.hrtime();
+
+This makes it easier to spot different unit bases are being mixed in the code.
+

 ### Strings

@@ -268,37 +292,3 @@ And there's two spaces before the next heading.

 Headings use the `# heading` format.
 ```
-
-
-## Pushing releases to npm
-
-The releases are done by creating a new release tag with lerna and then uploading that with lerna.
-You will need commit access to the repository as well publish access to the @clusterio org on npm to do this.
-
-1.  To do a release switch to the master branch and make sure it's up to date with the repository before proceeding.
-
-    ```sh
-    git switch master
-    git pull --ff-only upstream master
-    ```
-
-    Check and make sure there are no untracked files with `git status`, otherwise they will be auto commited!
-
-2.  Run a lerna version to create and tag a new version.
-    This will push a commit to the master branch.
-
-    ```sh
-    npx lerna version prerelease --git-remote upstream --no-granular-pathspec
-    ```
-
-3.  Run a full build in every package to update the dist/ files.
-
-    ```sh
-    npx lerna run build
-    ```
-
-4.  Publish the packages with lerna.
-
-    ```sh
-    npx lerna publish from-package
-    ```
@@ -0,0 +1,479 @@
+# Decisions
+
+This document outlines key decisions taken by the project team that should be followed by all maintainers and contributors.
+If there is a particular issue or concern you would like the team to comment on then please create a github issue for it.
+
+<!-- Try to use categories that already exist if possible -->
+<!-- Sublists should be alphabetical, avoiding starting with "the" -->
+<!-- For code style, add (Lang) to section names if present in both -->
+
+1. Documentation
+    - [Decision Log](#decision-log)
+    - [TSDoc](#tsdoc)
+2. Code Style (General)
+    - [Indenting](#indenting)
+    - [Line Length](#line-length)
+    - [Naming Booleans](#naming-booleans)
+    - [Naming Files](#naming-files)
+    - [Naming Times and Durations](#naming-times-and-durations)
+    - [Strings](#strings)
+3. Code Style (TS / JS / Web)
+    - [ESLint](#eslint)
+    - [Imports Within `lib` Package](#imports-within-lib-package)
+    - [Name Style](#name-style-ts)
+4. Code Style (Lua)
+    - [FMTK](#fmtk)
+    - [Name Style](#name-style-lua)
+5. Code Style (Other)
+    - [Markdown](#markdown)
+6. Repository Structure
+    - [External Plugins](#external-plugins)
+    - [First Party Plugins](#first-party-plugins)
+    - [Core Packages](#core-packages)
+    - [TypeScript Configs](#typescript-configs)
+    - [Workspace](#workspace)
+7. Project Architecture
+    - [Deprecation of Phin in favour of `fetch`](#deprecation-of-phin-in-favour-of-fetch)
+    - [Minimal Dependencies](#minimal-dependencies)
+    - [React](#react)
+    - [Separation of Host and Controller](#separation-of-host-and-controller)
+    - [Typescript](#typescript)
+    - [Webpack](#webpack)
+8. Supportability
+    - [Breaking Changes](#breaking-changes)
+    - [Distribution](#distribution)
+    - [Factorio](#factorio)
+    - [General Support](#general-support)
+    - [NodeJS](#nodejs)
+    - [Operating System](#operating-systems)
+9. Testing
+    - [Continuous Integration](#continuous-integration)
+    - [Continuous Deployment](#continuous-deployment)
+    - [Mocha](#mocha)
+    - [Version Matrix](#version-matrix)
+
+> [!note]
+> The use of `Time Immemorial` indicates an obsverion of a previously undocumented decision with no known start date, which has remained unchallenged.
+
+<!--
+### Template
+
+🧾 0th Month 2000 | Source
+
+> A short sentence describing the action to take in the context of our project.
+
+Write a breif description which includes: the reason a decision was needed, the outcome of the discussion, and the justification of the outcome.
+Write using the active voice in third person "we".
+Remember to have one sentence per line.
+-->
+
+
+## Documentation
+
+### Decision Log
+
+🧾 22nd December 2024 | Discord Voice Call
+
+> Maintain a document that includes a brief description of the outcomes and the reasoning behind our decisions, along with links to the relevant sources for further reading.
+
+We discovered that we were beginning to ask similar questions to other maintainers that we had previously raised, which led to a waste of time for all involved.
+Consequently, we decided that a log of important decisions should be kept for the benefit of ourselves and future maintainers.
+
+
+### TSDoc
+
+🧾 12th August 2023 | [Discord Discussion](https://discord.com/channels/450361298220351489/450361298220351491/1320573126731370506) | [Github PR #493](https://github.com/clusterio/clusterio/pull/493)
+
+> When a function or it's arguments do not have a clear purpose, a TSDoc comment should be used to describe it.
+
+While TypeScript provides useful type infomation in function hover text, it does not allow for comments about the purpose of functions and their arguments.
+Therefore, we decided to use TSDoc comments for this purpose as it is well intergrated in many text editors and IDEs (such as VSCode).
+Our specific implementation is TypeDoc because it is lightweight it and can output TSDoc comments as html.
+API Extractor was also considered but not selected.
+
+
+## Code Style (General)
+
+### Indenting
+
+🧾 Time Immemorial  
+
+> Use tabs for indention. Except for Markdown where spaces carry meaning.
+
+We needed to maintain a consistent whitespace style across all our files.
+Therefore, we selected tabs as our standard.
+
+
+### Line Length
+
+🧾 Time Immemorial  
+
+> Lines are limited to 120 characters where tabs count as 4 characters.
+
+We needed to maintain a consistent max line legnth across all our files.
+Therefore, we selected 120 characters as our standard.
+
+
+### Naming Booleans
+
+🧾 25th November 2024 | [Discord Discussion](https://discord.com/channels/450361298220351489/450361298220351491/1310611960508977223)
+
+> Variable and member properties which contain booleans should be named starting with a verb unless it ends with "ed", e.g. `canRestart` `expectEmpty` `hasFallback` `connected` `enabled` `loaded` `banned`
+
+We had inconsistencies in our naming of booleans and aimed to standardise them.
+There was little preference for any particular approach, so we chose the one that would require the fewest changes to existing code.
+As a result, all boolean values should begin with a verb, unless they end with "ed." For clarity, both "is" and "has" are considered verbs.
+
+
+### Naming Files
+
+🧾 Time Immemorial  
+
+> Files use lowercase_underscore if multiple values are exported. If a single class is exported then it uses the class name in PascalCase.
+
+We needed to maintain a consistent name style across all our files.
+Therefore, we selected lowercase undercore for most files, with class files using PascalCase.
+
+
+### Naming Times and Durations
+
+🧾 18th January 2024 | [Discord Discussion](https://discord.com/channels/450361298220351489/450361298220351491/1197566542548828170)
+
+> Variable and member properties which contain times or durations should end with their SI unit of messure, e.g. `updatedAtMs`
+
+We found verifying the units of measurement used in different locations to be a simple yet repetitive task that could lead to errors.
+Our main concern was the mixing of variables containing seconds and milliseconds.
+Therefore, we decided that times and durations should explicitly include their units, whereas other value types do not require any units.
+
+
+### Strings
+
+🧾 Time Immemorial  
+
+> Strings should use double quotes `"` unless the string contains them, in which case single quotes `'` can be used. For JS string templates use backticks ``` ` ``` as normal.
+
+We needed to maintain a consistent string style across all our files.
+Therefore, we selected double quotes as our standard.
+
+## Code Style (TS / JS / Web)
+
+### ESLint
+
+🧾 Time Immemorial  
+
+> Use ESLint for style checking.
+
+We needed to maintain a consistent style across all our files.
+Therefore, we utilise the industry-standard ESLint, as it is familiar and highly configurable.
+
+
+### Imports Within `lib` Package
+
+🧾 Time Immemorial  
+
+> When importing files within the lib package, all names should be prefixed with "lib".
+
+The exports of the various library files are often very generic and may conflict with variable names.
+Therefore, when importing these files the "lib" prefix should be used to avoid confussing.
+This only applies to files within `lib` importing other files in `lib` because all other packages import the whole of `lib` as a single package.
+
+
+### Name Style (TS)
+
+🧾 Time Immemorial  
+
+> Variables and members of classes use camelCase. Classes use PascalCase. Config values use lowercase_underscore. Exceptions allowed for over the write objects.
+
+We needed to maintain a consistent name style across all our files.
+Therefore, we follow common practive for JavaScript of using camelCase and PascalCase.
+Although, we have also allowed the use of lowercase_underscore for config values to distinguish them from other variables.
+
+
+## Code Style (Lua)
+
+### FMTK
+
+🧾 14th June 2024 | [External PR](https://github.com/justarandomgeek/vscode-factoriomod-debug/pull/126)
+
+> Use of FMTK is not required but is advised.
+> To enable Clusterio support, use the CLI flag `--clusterio-modules` under `Lua.runtime.pluginArgs`.
+
+We needed to maintain a consistent style across all our files.
+There are multiple competing standards for Lua code, and given the limited amount of Lua code in this project, we chose not to adopt any automatic linting or shared luarc file.
+Nevertheless, we recomend the use of [FMTK](https://github.com/justarandomgeek/vscode-factoriomod-debug) and have taken steps towords supporting it in Clusterio.
+
+
+### Name Style (Lua)
+
+🧾 Time Immemorial  
+
+> Everything uses lowercase_underscore
+
+We needed to maintain a consistent name style across all our files.
+Therefore, we follow common practive for Lua of using lowercase_underscore.
+
+
+## Code Style (Other)
+
+### Markdown
+
+🧾 Time Immemorial  
+
+> Use one sentence per line.
+> Place two lines before each heading, except for the first one or when two headings are adjacent.
+
+We needed to maintain a consistent code style across all our markdown files.
+Therefore, we selected an approach which makes diff reports more useful and which makes headings use additional space to make them stand out.
+
+
+## Repository Structure
+
+### External Plugins
+
+🧾 Time Immemorial
+
+> No external plugins should be included in the main repository.
+> A folder will exist which external plugin repositories can be cloned into and will be given the same treatment as first party plugins.
+
+We require a designated space for developers to create their plugins without the concern of conflicts with first-party plugins.
+To address this, we have introduced a dedicated folder for external plugins.
+This solution is straightforward and has since proven to be highly effective.
+
+
+### First Party Plugins
+
+🧾 Time Immemorial
+
+> First party plugins are included in the main repository.
+> Those selected to be first party are held to the same stanards which apply to the core packages.
+> Each will recieve a new release in step with the core packages.
+
+We require a designated space for first-party plugins, separate from the core packages, to clearly represent the dependency between them.
+Creating a folder provided a simple solution to this.
+
+
+### Core Packages
+
+🧾 Time Immemorial
+
+> All core packages will be contained in the packages folder of the repository.
+> They are allowed to be interdependent on each other.
+
+We require a set of core packages to represent the different applications used in a cluster.
+See [Separation of Host and Controller](#separation-of-host-and-controller).
+To avoid putting more files into the repository root we created a folder for the core packages.
+
+
+### TypeScript Configs
+
+🧾 26th August 2023 | [Github PR #504](https://github.com/clusterio/clusterio/pull/504)
+
+> Each package / plugin may contain any of: `tsconfig.json` `tsconfig.node.json` and `tsconfig.web.json`.
+> The main respository root will contain all three files in addition to `tsconfig.base.json` which node and web extend from.
+> The configs inside packages / plugins should extend from those in the respository root.
+
+We found that maintaining independent tsconfig files became burdensome and required a way to consolidate them.
+Initially, we introduced a base configuration file; however, this proved insufficient, so we extended it to include separate configurations for Node.js and the Web.
+This approach led to each package having up to three tsconfig files.
+Nevertheless, we believe this to be justified, given the need to differentiate between Node.js and Web builds while maintaining a single, shared configuration.
+
+
+### Workspace
+
+🧾 Time Immemorial
+
+> The workspace root should contain only: configuration files, scripts used to build / clean the workspace, the readme, and the changelog.
+
+We need to maintain a clean workspace root by only including files which effect all pacakges and plugins such as configuration files.
+We have allowed for build and clean scripts to exist here as long as they are not published as part of any package or plugin.
+
+
+## Project Architecture
+
+### Deprecation of Phin in favour of `fetch`
+
+🧾 12th December 2024 | [Discord Discussion Dec 24](https://discord.com/channels/450361298220351489/450361298220351491/1316781609206419567) | [Discord Discussion May 25](https://discord.com/channels/450361298220351489/450361298220351491/1240246997496102942)
+
+> The builtin `fetch` method should be used as a replacement of the deprecated Phin module.
+
+We required a replacement for the deprecated Phin HTTP client, which was used for making server-side requests and as part of testing.
+With `fetch` being marked as stable in Node.js v21.0.0 and having first been made available in v16.15.0, it serves as a suitable replacement without the need to add new dependencies.
+It had previously not been used because it was not marked as stable in any LTS version of NodeJS.
+
+
+### Minimal Dependencies
+
+🧾 Time Immemorial
+
+> Any new dependencies need to be well justified.
+
+We aim to minimise our exposure to upstream changes by using a minimal number of dependencies.
+This also serves to reduce the bloat of a cluster installation and improve installation times.
+Consequently, the addition of any new dependencies must be thoroughly justified, with evidence of research into alternative options and comparisons between them.
+
+
+### React
+
+🧾 Time Immemorial
+
+> Our web stack uses ReactJS
+
+We require a reactive website for our control panel, and ReactJS was selected due to its widespread use and familiarity.
+Switching away from React for any reason would represent a significant undertaking.
+
+
+### Separation of Host and Controller
+
+🧾 Time Immemorial
+
+> The primary application locations are Control (web and cli), Controller, and Host.
+> Therefore the core packages are: `ctl` `controller` `host`. There are two libaray packages `lib` and `web_ui`.
+> Additionally `create` exists to provide easy creation of a cluster.
+
+A single application to perform all the duties of a cluster would complicate the reasoning and maintenance of the project, so we decided to split it into several packages.
+The primary components of a cluster include servers connected to an instance, which runs on a host that connects to the controller, whose configuration is managed via a control connection from a CLI or web portal.
+Based on this structure, we found it logical to divide the packages according to their installation location, resulting in `ctl`, `controller`, and `host`, with shared code separated into `lib` and `web_ui` depending on where it is utilised.
+The additional `create` package is used by `npm create` to provide a user-friendly installation process.
+
+
+### TypeScript
+
+🧾 6th August 2023 | [Github PR #491](https://github.com/clusterio/clusterio/issues/491)
+
+> We use TypeScript as our language of choice.
+
+We previously used JavaScript and switched to TypeScript to provide a robust type system.
+Transitioning to any other langauge would be too significant an undertaking.
+Initially, we supported multiple languages for plugins, including Rust and Go; however, this approach was quickly abandoned due to its complexity.
+
+
+### Webpack
+
+🧾 Time Immemorial
+
+> Our web stack uses Webpack and associated plugins.
+
+We required a bundler for our web build, and at the time, Webpack was the standard.
+While we have considered alternatives since, transitioning to another solution would be a significant undertaking.
+
+
+## Supportability
+
+### Breaking Changes
+
+🧾 Time Immemorial
+
+> We follow symver versioning for breaking changes.
+> In our alpha stage, we allow every alpha to contain breaking changes as long as their are documented and provide migration actions.
+> Once we enter beta, breaking changes will be more restricted.
+
+We aim to be highly transparent with breaking changes and maintain compatibility with as many existing installations as possible.
+However, as we are currently in the alpha stage, things are unstable, and breaking changes occur frequently.
+As such, we have decided to document all breaking changes and provide migration steps where the changes are non-trivial.
+Once we enter the beta stage, we will implement stricter restrictions on breaking changes.
+
+
+### Distribution
+
+🧾 Time Immemorial
+
+> We use `git` and `pnpm` for development distribution.
+> We use `npm` and the factorio mod portal for production distribution.
+
+We need to distribute both production builds and development source code for the project.
+By necessity, we use `npm` and the Factorio Mod Portal to distribute our production builds.
+For development, we rely on `git` and GitHub, which are industry standards, while using `pnpm` as a more efficient variant of `npm` for development installations.
+Although bun was considered upon its release, we were not convinced it was the right choice.
+
+
+### Factorio
+
+🧾 26th October 2024 | [Discord Discussion](https://discord.com/channels/450361298220351489/450361298220351491/1299637042350653461)
+
+> We actively provide full support for the last two major versions of Factorio.
+> This approach does not follow semantic versioning; instead, it follows the "middle" versions: 2.1 > 2.0 > 1.1 > 1.0 > 0.18 > 0.17.
+> We offer passive support for all versions from 0.17 onwards, where implementation is trivial and does not impose restrictions on our actively supported versions.
+
+Following the 2.0 update of Factorio, which introduced a large number of breaking changes, we needed to reconsider which versions would be actively supported, as it was no longer trivial to support all versions.
+Anticipating that future breaking changes would also be significant, and assuming the majority of players would update to the latest stable version upon release, we decided to support the latest stable version and the previous major version that introduced breaking changes.
+Support for other versions will not be removed if they have already been implemented and do not impose restrictions on our ability to support newer versions.
+
+
+### General Support
+
+🧾 Time Immemorial
+
+> We provide full support via GitHub and our Discord server for the latest published version of Clusterio, as well as assistance with migrating from the previous published version.
+> However, we do not offer any guarantees with our support; we assist when time permits and may not be able to resolve every issue.
+> Additionally, while we offer support in setting up development workspaces and guidance for plugin development, we do not provide support for those running development builds as production instances.
+
+We aim to support as many users of Clusterio as possible in setting up and using the platform for a variety of purposes, including setting up production instances, development workspaces, and providing guidance on plugin development.
+However, our time to work on Clusterio is limited, and even more so our ability to offer support.
+As such, we cannot assist with every issue and must set reasonable restrictions to ensure expectations are aligned.
+Consequently, we do not offer any guarantees for our support, but we strive to provide as much assistance as possible for those setting up or running the latest published version.
+Additionally, we support users in setting up development workspaces, as the more people willing to contribute, the better.
+
+
+### NodeJS
+
+🧾 Time Immemorial
+
+> We support all LTS versions of NodeJS in their active and maintenance phases.
+
+Our options were: supporting all versions, supporting all active versions, supporting all LTS versions, or supporting only the latest version.
+As we aim to provide a stable, production-ready tool while still limiting the number of versions we need to manage, we chose to support all LTS versions because NodeJS can be installed by the majority of linux distro package managers which will always offer at least one LTS version.
+
+
+### Operating Systems
+
+🧾 Time Immemorial
+
+> We support all major versions of Windows, Linux, and MacOS.
+This is largely inpart to our use of NodeJS and is not a guarantee from us.
+
+Our choice of Node.js has enabled us to support all major operating systems with minimal effort on our part.
+Nevertheless, there have been instances where code paths have diverged between systems, and we have attempted to maintain support for as many systems as possible.
+However, this is not a priority, and such support has often been reactive or provided by external contributors.
+
+
+## Testing
+
+### Continuous Integration
+
+🧾 Time Immemorial
+
+> We run unit and integration tests through GitHub CI actions as well as test coverage through CodeCov.
+
+Continuous integration actions in GitHub are a valuable tool that we use to assist with the review of pull requests from both maintainers and contributors.
+While we aim to increase the number of useful checks performed by CI in the future, this is not a priority over the development of new features.
+
+
+### Continuous Deployment
+
+🧾 Time Immemorial
+
+> We do not use any CD actions, and have no plans of implementing them.
+
+Unlike CI, we do not find continuous deployment useful at our current stage of the project.
+This is due to the frequent breaking changes merged into the main branch, which we prefer to bundle together as a single version.
+In the future, we may automate the deployment process, but it will always require manual activation.
+
+
+### Mocha
+
+🧾 Time Immemorial
+
+> We use Mocha for testing and CodeCov for coverage.
+
+We chose Mocha because it was a good fit when we selected it.
+However, we are always looking for a better framework which is worth the effort of switching.
+
+
+### Version Matrix
+
+🧾 Time Immemorial
+
+> We perform all tests through GitHub actions using Ubuntu latest, using all supported versions of node and all supported versions of factorio.
+
+We perform tests on all versions of NodeJS and Factorio that we support.
+However, we do not conduct tests on all supported operating systems, as the added demand on our testing resources would be significant, and the value it would provide for a cross-platform engine like NodeJS would be limited.
@@ -0,0 +1,119 @@
+# JSON Serialisable Classes
+
+To serialise and deserialise data the Clusterio codebase uses a JSON serialisable data class pattern.
+Instances of these classes can be serialised to JSON by passing them directly to `JSON.serialise` and deserialised by passing the serialised JSON representation to its static `fromJSON` method.
+The data class also has a static `jsonSchema` property describing the serialised JSON representation for validation purposes.
+See the following example code for a hypothetical `Data` class with a single property `member` defaulting to a value of `"foo"`.
+
+
+```js
+// Data.js
+"use strictc";
+
+/**
+ * A Data class example
+ * @alias module:Data
+ */
+class Data {
+    /** @type {string} */
+    member = "foo";
+
+    constructor(member) {
+        if (member !== undefined) { this.member = member; }
+    }
+
+    static jsonSchema = {
+        type: "object",
+        properties: {
+            "member": { type: "string" },
+        },
+    };
+
+    static fromJSON(json) {
+        return new this(json.member);
+    }
+
+    // toJSON is called by JSON.stringify when serialising this class
+    toJSON() {
+        let json = {};
+        // Omit property if it's set to the default value
+        if (this.member !== "foo") { json["member"] = this.member; }
+        return json;
+    }
+}
+
+module.exports = Data;
+```
+
+Serialising an instance of `Data` for JSON is as simple as doing `serialised = JSON.stringify(data)` as the `toJSON` method is automatically called by `JSON.stringify` to create a suitable object.
+Deserialising is done by calling the static `fromJSON` method with the serialised JSON data, like `data = Data.fromJSON(JSON.parse(serialised))`.
+
+By structuring the classes like this they can be easily composed together.
+For example a class holding a data property with an instance of the Data class from the previous example can be created as follows.
+
+```js
+// Composed.js
+"use strict";
+const Data = require("./Data");
+
+/**
+ * Composed data class example
+ * @alias module:Data
+ */
+class Composed {
+    /** @type {module:Data|undefined} */
+    data;
+
+    constructor(data) {
+        if (data) { this.data = data; }
+    }
+
+    static jsonSchema = {
+        type: "object",
+        properties: {
+            "data": Data.jsonSchema,
+        },
+    };
+
+    static fromJSON(json) {
+        let data;
+        if (json["data"]) { data = Data.fromJSON(json["data"]); }
+        return new this(data);
+    }
+
+    // toJSON is optional and not needed for this particular class
+}
+
+module.exports = Composed;
+```
+
+It's easy to create a new instance of Composed by calling `new Composed(new Data("spam"))` and serialising to and from JSON is the same as for Data.
+Meaning `serialised = JSON.stringify(composed)` and `composed = Composed.fromJSON(JSON.parse(serialised))` does as expected.
+
+## Interface description
+
+Data classes are ES6 style class declarations with the following methods and fields:
+
+### toJSON(): any (optional)
+
+Method returning an object or primitive suitable for passing to JSON.stringify in order to create a JSON representation of the class instance.
+The returned object may contain objects that have their own toJSON methods which JSON.stringify will then call recursively.
+
+This method is optional if calling `JSON.stringify` on an instance without it would produce the desired serialised form, however this is rarely the case as often you'll have to provide it to convert the values fram Map/Set properites, omit default values or do similar actions.
+
+Note that the primary use case for serialising data classes is to send them over the network, this method should therefore try to reduce the size of the resulting JSON by for example omitting properties who's values are the default value.
+
+### static fromJSON(json: any): this
+
+Method constructing an instance of this class from one that was previously serialised by passing an instance of it to `JSON.stringify`.
+
+While not a requirement it is preferrable if the input is not mutated and that no references to any any structures in the input ends up in the returned object.
+In other words calling fromJSON twice with the same input should produce two independent objects.
+
+Note that directly passing the output of `toJSON` to `fromJSON` is not valid, as the output of `toJSON` may require further expansion calling `toJSON` on objects returned by it.
+It has to go through `JSON.stringify` or an equivalent recursive expansion of `toJSON`.
+
+### static jsonSchema
+
+A [JSON schema](http://json-schema.org/) describing the format of the JSON resulting from passing an instance of this class to `JSON.stringify`.
+This should be lenient towards adding additional properties that would be ignored by `fromJSON` as it makes it easier to extend these classes in the future without breaking compatibility.
@@ -0,0 +1,523 @@
+# Migrating Plugins to Alpha 14
+
+Between version 2.0.0-alpha.13 and 2.0.0-alpha.14 the codebase underwent major refactoring and was ported to TypeScript.
+In order to support alpha 14 there are several major changes that need to be done to existing plugins, these are in no particular order
+
+
+## Rename master and slave
+
+All references to slave and master in the code was renamed to controller and host respectively which means that code referencing these in plugins must be renamed.
+In short this means performing a global search and replace on the codebase replacing:
+
+- `master` with `controller`
+- `Master` with `Controller`
+- `slave` with `host`
+- `Slave` with `Host`
+
+in all places it occurs, even as part of longer names such as changing `BaseMasterPlugin` to `BaseControllerPlugin`.
+
+
+## Change lib imports to import directly from the top level package
+
+Previously code could import sub packages of lib such as lib/lua_tools.
+These imports need to be changed to all import from lib directly.
+
+**Alpha 13**
+```js
+const libLuaTools = require("@clusterio/lib/lua_tools");
+const libErrors = require("@clusterio/lib/errors");
+
+// Using imports
+new libErrors.RequestError(...)
+libLuaTools.escapeString(...)
+```
+
+**Alpha 14 (JS)**
+```js
+const lib = require("@clusterio/lib");
+
+// Using library components
+new lib.RequestError(...)
+lib.escapeString(...)
+```
+
+**Alpha 14 (TS)**
+```ts
+import * as lib from "@clusterio/lib";
+
+// Using library components
+new lib.RequestError(...)
+lib.escapeString(...)
+```
+
+
+## Change import of base plugins
+
+Previously `BaseMasterPlugin` and `BaseInstancePlugin` were imported from `@clusterio/lib`, these have been moved to `@clusterio/controller` and `@clusterio/host` respectively.
+
+**Alpha 13**
+```js
+const { BaseMasterPlugin } = require("@clusterio/lib");
+const { BaseInstancePlugin } = require("@clusterio/lib");
+```
+
+**Alpha 14 (JS)**
+```js
+const { BaseControllerPlugin } = require("@clusterio/controller");
+const { BaseInstancePlugin } = require("@clusterio/host");
+```
+
+**Alpha 14 (TS)**
+```ts
+import { BaseControllerPlugin } from "@clusterio/controller";
+import { BaseInstancePlugin } from "@clusterio/host";
+```
+
+
+## Change main entrypoint of plugin
+
+Previously the info of a plugin would be loaded by requiring `./plugin_dir/info`, this has been changed to require `./plugin_dir` which in turn means that `info.js` is no longer the default entrypoint.
+To solve this you can either add `"main": "info.js",` to package.json or rename `info.js` to `index.js` (the rest of this guide assumes the entrypoint was renamed to `index.js`).
+The motivation behind this change was to allow TypeScript to output its build to a sub-folder of the plugin, if you're using TypeScript you'll likely have the entrypoint be located in `dist/node/index.js` instead.
+
+The expected place where the declaration of a plugin is exported has also changed from `module.exports` to `module.exports.plugin`:
+
+**Alpha 13**
+```js
+// info.js
+module.exports = {
+    name: "plugin_name",
+    ...
+}
+```
+
+**Alpha 14 (JS)**
+```js
+// index.js
+const plugin = {
+    name: "plugin_name",
+    ...
+}
+
+module.exports = {
+    plugin,
+};
+```
+
+**Alpha 14 (TS)**
+```ts
+// index.ts
+import type * as lib from "@clusterio/lib";
+
+export const plugin: lib.PluginDeclaration = {
+    name: "plugin_name",
+    ...
+};
+```
+
+
+### Modify exposed path in webpack.config.js
+
+The `./info` import path exposed in the ModuleFederationPlugin in the `webpack.config.js` needs to be changed to `./`.
+E.g.:
+
+**Alpha 13**
+```js
+// In webpack.config.js
+new webpack.container.ModuleFederationPlugin({
+    ...
+    exposes: {
+        "./info": "./info.js",
+        ...
+    },
+}),
+```
+
+**Alpha 14**
+```js
+// In webpack.config.js
+new webpack.container.ModuleFederationPlugin({
+    ...
+    exposes: {
+        "./": "./index.js",
+        ...
+    },
+}),
+```
+
+## Remove usage of ConfigGroup
+
+The Config system was refactored and the `ConfigGroup` concept was completely removed.
+Config fields are now defined directly on the exported plugin info.
+
+**Alpha 13**
+```js
+const lib = require("@clusterio/lib");
+
+class MasterConfigGroup extends lib.PluginConfigGroup { }
+MasterConfigGroup.groupName = "plugin_name";
+MasterConfigGroup.defaultAccess = ["master", "control"];
+MasterConfigGroup.define({
+    name: "option",
+    title: "Option",
+    description: "A config option.",
+    type: "string",
+    optional: true,
+});
+
+module.exports = {
+    name: "plugin_name",
+    MasterConfigGroup,
+    ...
+}
+```
+
+**Alpha 14 (JS)**
+```js
+const plugin = {
+    name: "plugin_name",
+    controllerConfigFields: {
+        "plugin_name.option": {
+            title: "Option",
+            description: "A config option.",
+            type: "string",
+            initial_value: "foo",
+            optional: true,
+        },
+    },
+    ...
+}
+
+module.exports = {
+    plugin,
+};
+```
+
+**Alpha 14 (TS)**
+```ts
+import type * as lib from "@clusterio/lib";
+
+// Declare the type of the field to make the type of controller.config.get(field) correctly deduced.
+declare module "@clusterio/lib" {
+    export interface ControllerConfigFields {
+        "plugin_name.option": null | string;
+    }
+}
+
+export const plugin: lib.PluginDeclaration = {
+    name: "plugin_name",
+    controllerConfigFields: {
+        "plugin_name.option": {
+            title: "Option",
+            description: "A config option.",
+            type: "string",
+            initialValue: "foo",
+            optional: true,
+        },
+    },
+    ...
+};
+```
+
+
+### Use onControllerConfigFieldChanged instead of listering to the fieldChanged event
+
+**Alpha 13**
+```js
+this.controller.config.on("fieldChanged", (group, field, prev) => {
+    if (group.name === "plugin_name" && field === "option") {
+        const curr = group.get(field);
+        // Do stuff with curr and or prev
+    }
+}
+```
+
+**Alpha 14 (JS)**
+```js
+async onControllerConfigFieldChanged(field, curr, prev) {
+    if (field === "plugin_name.option") {
+        // Do stuff with curr and or prev
+    }
+}
+```
+
+**Alpha 14 (TS)**
+```ts
+async onControllerConfigFieldChanged(field: string, curr: unknown, prev: unknown) {
+    if (field === "plugin_name.option") {
+        // Do stuff with curr and or prev
+    }
+}
+```
+
+## Redefine link messages as classes
+
+The link layer has been majorly refactored and Request and Events are now defined as [JSON Serialisable Classes](./json-serialisable-classes.md).
+
+**Alpha 13**
+```js
+module.exports = {
+    name: "plugin_name",
+    messages: {
+        forwarded: new lib.Event({
+            type: "plugin_name:forwarded",
+            links: ["instance-slave", "slave-master"],
+            forwardTo: "master",
+            eventProperties: {
+                "string_value": { type: "string" },
+                "number_value": { type: "number" },
+            },
+        }),
+        simple: new lib.Request({
+            type: "plugin_name:simple",
+            links: ["master-slave", "slave-instance"],
+            forwardTo: "instance",
+            requestProperties: {
+                "instance_id": { type: "number" },
+                "string_value": { type: "string" },
+            },
+            responseProperties: {
+                "number_value": { type: "number" },
+            },
+        }),
+    },
+};
+```
+
+**Alpha 14 (JS)**
+```js
+const lib = require("@clusterio/lib");
+
+class ForwardedEvent {
+    static type = "event";
+    static src = "instance";
+    static dst = "controller";
+    static plugin = "plugin_name";
+
+    constructor(stringValue, numberValue) {
+        this.stringValue = stringValue;
+        this.numberValue = numberValue;
+    }
+
+    static jsonSchema = {
+        type: "object",
+        required: ["stringValue", "numberValue"],
+        properties: {
+            "stringValue": { type: "string" },
+            "numberValue": { type: "number" },
+        },
+    };
+
+    static fromJSON(json) {
+        return new this(json.stringValue, json.numberValue);
+    }
+}
+
+class SimpleRequest {
+    static type = "request";
+    static src = "controller";
+    static dst = "instance";
+    static plugin = "plugin_name";
+
+    constructor(stringValue) {
+        this.stringValue = stringValue;
+    }
+
+    static jsonSchema = {
+        type: "object",
+        required: ["stringValue"],
+        properties: {
+            "stringValue": { type: "string" },
+        },
+    };
+
+    static Response = lib.JsonNumber
+}
+
+const plugin = {
+    name: "plugin_name",
+    messages: [
+        ForwardedEvent,
+        SimpleRequest,
+    ],
+    ...
+};
+
+module.exports = {
+    plugin,
+    ForwardedEvent,
+    SimpleRequest,
+}
+```
+
+**Alpha 14 (TS)**
+```ts
+import * as lib from "@clusterio/lib";
+import { Static, Type } from "@sinclair/typebox";
+
+export class ForwardedEvent {
+    declare ["constructor"]: typeof ForwardedEvent;
+    static type = "event" as const;
+    static src = "instance" as const;
+    static dst = "controller" as const;
+    static plugin = "plugin_name" as const;
+
+    constructor(
+        public stringValue: string,
+        public numberValue: number,
+    ) { }
+
+    static jsonSchema = Type.Object({
+        "stringValue": Type.String(),
+        "numberValue": Type.Number(),
+    });
+
+    static fromJSON(json: Static<typeof this.jsonSchema>) {
+        return new this(json.stringValue, json.numberValue);
+    }
+}
+
+export class SimpleRequest {
+    declare ["constructor"]: typeof SimpleRequest;
+    static type = "request" as const;
+    static src = "controller" as const;
+    static dst = "instance" as const;
+    static plugin = "plugin_name" as const;
+
+    constructor(
+        public stringValue: string,
+    ) { }
+
+    static jsonSchema = Type.Object({
+        "stringValue": Type.String(),
+    });
+
+    static fromJSON(json: Static<typeof this.jsonSchema>) {
+        return new this(json.stringValue);
+    }
+
+    static Response = lib.JsonNumber
+}
+
+export const plugin: lib.PluginDeclaration = {
+    name: "plugin_name",
+    messages: [
+        ForwardedEvent,
+        SimpleRequest,
+    ],
+    ...
+}
+```
+
+### Refactor message sending
+
+Message handlers are now explicitly registered instead of relying on magic name lookups that don't make sense unless you know them.
+
+**Alpha 13**
+```js
+const lib = require("@clusterio/lib");
+
+class ControllerPlugin extends lib.BaseControllerPlugin {
+    // event name is magically created by concatenating EventHandler or
+    // RequestHandler to the name in the messages export in in info.js.
+    async forwardedEventHandler(message) {
+        // message.data contains the raw JSON data sent.
+        if (message.data.string_value) {
+            // ...
+        }
+    }
+}
+```
+
+**Alpha 14 (JS)**
+```js
+const { BaseControllerPlugin } = require("@clusterio/lib");
+const { ForwardedEvent } = require("./index.js");
+
+class ControllerPlugin extends BaseControllerPlugin {
+    async init() {
+        // Explicit binding between message class and the handler for it
+        this.controller.handle(ForwardedEvent, this.handleForwardedEvent.bind(this));
+        // Note: On an instance plugin you would use this.instance.handle
+    }
+
+    async handleForwardedEvent(event, src, dst) {
+        // Event is an instance of the ForwardedEvent class
+        if (event.stringValue) {
+            // ...
+        }
+
+        // src and dst are instances of lib.Address and describe where
+        // the message came from and who it was addressed to.
+    }
+
+    ...
+}
+
+module.exports = {
+    ControllerPlugin,
+}
+```
+
+**Alpha 14 (TS)**
+```ts
+import * as lib from "@clusterio/lib";
+import { BaseControllerPlugin } from "@clusterio/controller";
+import { ForwardedEvent } from "./index.js";
+
+export class ControllerPlugin extends BaseControllerPlugin {
+    async init() {
+        // When using TypeScript this call is type checked to make sure the handler accepts the right class.
+        this.controller.handle(ForwardedEvent, this.handleForwardedEvent.bind(this));
+        // Note: On an instance plugin you would use this.instance.handle
+    }
+
+    async handleForwardedEvent(event: ForwardedEvent, src: lib.Address, dst: lib.Address) {
+        // Event is an instance of the ForwardedEvent class
+        if (event.stringValue) {
+            // ...
+        }
+
+        // src and dst describe where the message came from and who it was addressed to.
+    }
+
+    ...
+}
+```
+
+
+### Refactor message sending
+
+Message are now addressed end to end instead of using the confusing forwardTo and broadcastTo properties of the message definition.
+When broadcasting events the special `"allInstances"`, `"allHosts"`, and `"allControls"` shorthand addresses can be used.
+There's two methods for sending messages `.send` and `.sendTo` where `.send` is a shorthand for `.sendTo` with an address filled in as the other side of the link, this is mostly only useful in control plugins where the other side of the link is the controller.
+
+**Alpha 13**
+```js
+// from instance plugin
+this.info.messages.forwarded.send(this.instance, {
+    string_value: "foo",
+    number_value: 123,
+});
+
+// from master plugin
+const instance_id = ...
+const response = await this.forwardRequestToInstance(this.info.messages.simple, {
+    instance_id,
+    string_value: "foo",
+});
+const value = response.number_value;
+```
+
+**Alpha 14**
+```js
+const { ForwardedEvent } = require("./info.js");
+
+// from instance plugin
+this.instance.sendTo("controller", new ForwardedEvent("foo", 123));
+
+// from controller plugin
+const instanceId = ...
+const value = await this.controller.sendTo({ instanceId }, new SimpleRequest("foo"));
+// if using TypeScript then the type of value will be inferred as number here
+```
@@ -1,7 +1,7 @@
 # Protocol

 Clusterio communicates using a simple homebrew message passing protocol based on JSON over WebSocket with limited support for reliable transport of messages.
-The protocol is implemented in [packages/lib/link](/packages/lib/link) and uses the `ws` library to handle the WebSocket connections on the Node.js side and the native WebSocket API on the browser side.
+The protocol is implemented in [packages/lib/src/link](/packages/lib/src/link) and uses the `ws` library to handle the WebSocket connections on the Node.js side and the native WebSocket API on the browser side.

 Two general kinds of messages are supported: events and requests.
 Events are messages sent by one party and received by the other and offer no notification for the sender on whether it was actually received.
@@ -12,9 +12,9 @@ Events and requests are defined as instances of the `Request` and `Event` classe
 All messages sent and received are validated with JSON schemas to catch potential errors in sending messages and avoid having to write lots of validation code in message handlers.

 Messages are sent by calling the `.send()` method of the message instance and passing a `Link` instance to send it over and the data to send.
-For the master server there's a `Link` instance for each slave and control connection stored in the `WsServer` class.
-For slaves the `Slave` instance is a link to the master server, and each `Instance` instance is an in-memory link to the `Slave` instance and has a corresponding `InstanceConnection` link stored on the `Slave` instance.
-For ctl and web_ui there's a `Control` instance that acts as the link to the master server.
+For the controller there's a `Link` instance for each host and control connection stored in the `WsServer` class.
+For hosts the `Host` instance is a link to the controller, and each `Instance` instance is an in-memory link to the `Host` instance and has a corresponding `InstanceConnection` link stored on the `Host` instance.
+For ctl and web_ui there's a `Control` instance that acts as the link to the controller.

 Messages received invokes message handlers that were registered when the link was brought up.
 These handlers are named after the name of the property the message is stored under with `EventHandler` appended for events and `RequestHandler` appended for requests.
@@ -24,7 +24,7 @@ The handlers are defined on the link class itself for core messages, and on the
 ## Connection flow

 Clients connect via WebSocket to the `/api/socket` endpoint and upon establishing connection to the server the connection is in the handshake phase and the server will send a `hello` message to the client.
-If the client has no previous session with the server it sends a `register_slave` or `register_control` message depending on what kind of client it is to the server.
+If the client has no previous session with the server it sends a `register_host` or `register_control` message depending on what kind of client it is to the server.
 If the register is valid then the server will respond with a `ready` message with a session token and the connection has left the handshake phase, otherwise the server will close the connection with a WebSocket close code indicating the kind of failure.

 Upon leaving the handshake phase both parties should start sending heartbeat messages with the sequence number of the last received message.
@@ -33,7 +33,7 @@ Messages sent over the link should be stored in a send buffer and only cleared f
 If the connection goes stale or is unexpectedly closed the client can reastablish the same session by connecting to the server again and sending a `resume` message after received the `hello` from the server.
 If the session resume is successful then the server will respond with a `continue` message and the connection is active again.
 The client should then re-send all messages it has in its send buffer that is greater than the `last_seq` number in the `continue` message.
-Otherwise the server will respond with `invalidate` and the client is expected to drop its send buffer start a new session with `register_slave` or `register_control`.
+Otherwise the server will respond with `invalidate` and the client is expected to drop its send buffer start a new session with `register_host` or `register_control`.

 ![Connection flow](../assets/connection_flow.svg)

@@ -96,30 +96,27 @@ The following messages are the only valid messages that can be sent during the h

 #### `hello`

-Sent by the master server when the WebSocket connection has been opened.
+Sent by the controller when the WebSocket connection has been opened.

- `version: string` - The version of the master, e.g. "2.0.0".
+- `version: string` - The version of the controller, e.g. "2.0.0".
 - `plugins: Object<string, string>` -
-    Object mapping plugin names to plugin version for plugins that are loaded on the master server.
+    Object mapping plugin names to plugin version for plugins that are loaded on the controller.

-#### `register_slave`
+#### `register_host`

-Slave handshake for establishing a new connection session.
+Host handshake for establishing a new connection session.

 - `token: string` - Authentication token.
- `agent: string` - Human readable string of the software connecting.
- `version: string` - The protocol version of the slave, e.g. "2.0.0".
- `name: string` - Name of the slave.
- `id: integer` - ID of the slave.
+- `version: string` - The protocol version of the host, e.g. "2.0.0".
+- `id: integer` - ID of the host.
 - `plugins: Object<string, string>` -
-    Object mapping plugin names to plugin version for plugins that are available on the slave.
+    Object mapping plugin names to plugin version for plugins that are available on the host.

 #### `register_control`

 Control handshake for enstablishing a new connection session.

 - `token: string` - Authentication token.
- `agent: string` - Human readable string of the software connecting.
 - `version: string` - The protocol version of the control, e.g. "2.0.0".

 #### `resume`
@@ -131,12 +128,12 @@ Handshake for resuming an existing connection session where the connection had d

 #### `invalidate`

-Sent by the master server in reply to a resume for a session that cannot be resumed.
+Sent by the controller in reply to a resume for a session that cannot be resumed.
 The client should start a new session with a register\_\* message in response.

 #### `continue`

-Sent by the master server to signal resuming the session was successful.
+Sent by the controller to signal resuming the session was successful.

 - `last_seq: integer | null` - Last message seq received by the server.
 - `session_timeout: integer` - Session timeout in seconds.
@@ -144,7 +141,7 @@ Sent by the master server to signal resuming the session was successful.

 #### `ready`

-Sent by the master server to signal the connection has been established with a new session.
+Sent by the controller to signal the connection has been established with a new session.

 - `session_token: string` - Token to resume the session with.
 - `session_timeout: integer` - Session timeout in seconds.
@@ -159,7 +156,7 @@ The heartbeat should contain the `seq` of the last received message, and receivi

 #### `heartbeat`

-Sent by both the master server and clients at the interval given in the continue/ready messages.
+Sent by both the controller and clients at the interval given in the continue/ready messages.

 - `last_seq: integer` - Last message seq received over the link.

@@ -169,7 +166,7 @@ Events are messages send in one direction over the link, that the receiver is ex
 By convention message types ending in `*_event` are events.
 The data payload of an event consists solely of event specific properties.

-See [packages/lib/link/messages.js](/packages/lib/link/messages.js) for the recognized core events and their contents.
+See [packages/lib/src/link/messages.ts](/packages/lib/src/link/messages.ts) for the recognized core events and their contents.
 Plugins may defined their own events as well.

 #### `*_event`
@@ -184,7 +181,7 @@ They function a lot like HTTP requests except that both parties of a connection
 By convention message types ending in `*_request` are requests, and is expected to be replied to with a corresponding `*_response` message.
 If an error occured while processing the request an error response containing an error property in the data payload is sent instead.

-See [packages/lib/link/messages.js](/packages/lib/link/messages.js) for the recognized core requests and their contents.
+See [packages/lib/src/link/messages.ts](/packages/lib/src/link/messages.ts) for the recognized core requests and their contents.
 Plugins may define their own requests as well.

 #### `*_request`
@@ -235,23 +232,21 @@ Server hello after opening the WebSocket.
 }
 ```

-Slave registering a new connection session.
+Host registering a new connection session.

 ```json
 {
    "seq": null,
-    "type": "register_slave",
+    "type": "register_host",
    "data": {
        "token": "xyzabc123",
-        "agent": "Clusterio Slave",
        "version": "2.0.0",
-        "name": "Foo",
        "id": 123
    }
 }
 ```

-Master server reply signaling the session is established and ready.
+Controller reply signaling the session is established and ready.

 ```json
 {
@@ -265,4 +260,4 @@ Master server reply signaling the session is established and ready.
 }
 ```

-Slave and master can now send events and requests over the connection.
+Host and controller can now send events and requests over the connection.
@@ -11,6 +11,6 @@ This can be disabled with the `factorio.enable_save_patching` config on a per in

 ## User Accounts

-The master server creates and stores accounts for all Factorio users that log into instances under its control.
+The controller creates and stores accounts for all Factorio users that log into instances under its control.
 These accounts are used to store per player data and authorize management of the cluster.
 By default users accounts are assigned a Player role that gives a limited read access to the cluster resources, and admins of the cluster can be assigned a Cluster Admin role to get access to manage it.
@@ -1,23 +0,0 @@
-{
-	"plugins": [
-		"plugins/markdown"
-	],
-	"tags": {
-		"allowUnknownTags": false
-	},
-	"opts": {
-		"destination": "docs/api",
-		"recurse": true
-	},
-	"source": {
-		"include": [
-			"packages/master/src/",
-			"packages/master/master.js",
-			"packages/slave/slave.js",
-			"packages/ctl/ctl.js",
-			"packages/lib/",
-			"plugins/"
-		],
-		"excludePattern": "node_modules"
-	}
-}
@@ -1,32 +1,32 @@
 # Managing a Cluster

-Clusterio clusters are managed through the master server by using the `clusterioctl` command line interface which is invoked by running `npx clusterioctl <command>` in the clusterio directory.
+Clusterio clusters are managed through the controller by using the `clusterioctl` command line interface which is invoked by running `npx clusterioctl <command>` in the clusterio directory.
 This document uses the shorthand `ctl> foo` to indicate `npx clusterioctl foo` should be executed.
 Mandatory parameters are shown in `<angles bracket>` and optional pameters are in `[square brackets]`.

 Before `clusterioctl` can be used it needs to be configured for the cluster it will connect to.
-The easiest way to do this is to run `npx clusteriomaster bootstrap create-ctl-config <username>` on the master server, which creates the necessary `config-control.json` for managing the cluster as the given user.
+The easiest way to do this is to run `npx clusteriocontroller bootstrap create-ctl-config <username>` on the controller, which creates the necessary `config-control.json` for managing the cluster as the given user.


-## Slaves
+## Hosts

-### List slaves
+### List hosts

-    ctl> slave list
+    ctl> host list

-Lists all slaves.
+Lists all hosts.

 ### Generate token

-    ctl> slave generate-token [--id <slave id>]
+    ctl> host generate-token [--id <host id>]

-Generate a token for a slave. `--id` is the slave id.
+Generate a token for a host. `--id` is the host id.

 ### Create config

-    ctl> slave create-config [--id <slave id>] [--name <slave name>] [--generate-token <bool>] [--output <path to output>]
+    ctl> host create-config [--id <host id>] [--name <host name>] [--generate-token <bool>] [--output <path to output>]

-Create a slave config. `--id` id the slave id. `--name` is the slave name. `--generate-token` decides whether to also generate a token, defaulting to `0`. `--output` is the filename for the output of the config; Default is "config-slave.json", "-" for stdout.
+Create a host config. `--id` id the host id. `--name` is the host name. `--generate-token` decides whether to also generate a token, defaulting to `0`. `--output` is the filename for the output of the config; Default is "config-host.json", "-" for stdout.

 ## Instances

@@ -50,6 +50,16 @@ Terminates the running Factorio server without giving it a chance to save or cle

 Note: This may cause loss of data.

+### Extract players from instance
+
+    ctl> instance extract-players <name>
+
+Creates a user account in the cluster for each player that has been online on the currently running save of the instance and sets the online time of that account on this instance to the online time recorded in the save.
+
+Useful when importing a save to a cluster.
+Note that the online time in a save is recorded differntly from how Clusterio records online time.
+Most notably Clusterio records wall clock time while the save time is recorded in ticks and this extraction of player time assumes the game runs at 60 ticks a second.
+

 ### Config management

@@ -75,11 +85,11 @@ To be written.

 Edit instance config in a text editor. Once file is saved and editor has been exited, config values will be read back in. `instance` is the instance to edit, `editor` is the editor to use. If `editor` is not given, clusterioctl will read from the `EDITOR` or `VISUAL` enviroment variables.

-### Assign instance to slave
+### Assign instance to host

-    ctl> instace assign <instance> [slave]
+    ctl> instace assign <instance> [host]

-Assigns instance to slave. `instance` is instance to assign, `slave` is slave to assign to. If `slave` is not provided, instance will be unassigned.
+Assigns instance to host. `instance` is instance to assign, `host` is host to assign to. If `host` is not provided, instance will be unassigned.

 ## Users

@@ -179,7 +189,7 @@ By default there's a roled named Cluster Admin which grants access to everything

    ctl> user delete <name>

-Deletes everything stored on the master server for this user.
+Deletes everything stored on the controller for this user.

 Note: If the player is banned from the cluster this will effectively unban them, as the ban status is stored with the user account.

@@ -0,0 +1,42 @@
+# Migrating from 2.0.0-alpha.13 to 2.0.0-alpha.14
+
+Alpha 14 comes with significant breaking changes for existing clusters, most notably the rename of master and slave to controller and host.
+Please study the entire migration guide carefully before attempting to update an existing cluster.
+
+## Before updating
+
+If you're using mods you need to create mod pack string for the mod configurations you're currently running.
+You can do this by running the follow RCON command on an instance that is currently running the mod configuration you want to use (you can also run this command in single player and find the string printed in Factorio's [Log file](https://wiki.factorio.com/Log_file)):
+
+    /sc local m={name="pack",description="",factorio_version=game.active_mods.base,mods={},settings={startup={},["runtime-global"]={},["runtime-per-user"]={}}} for n,v in pairs(game.active_mods) do table.insert(m.mods,{name=n,enabled=true,version=v}) end local function set(s,c) for n,v in pairs(s) do m.settings[c][n]=v end end set(settings.startup,"startup") set(settings.global,"runtime-global") if game.player then set(game.player.mod_settings,"runtime-per-user") else set(settings.player,"runtime-per-user") end local e=game.encode_string(game.table_to_json(m)) log(e) rcon.print(e)
+
+This should produce a [Mod Pack String](https://forums.factorio.com/viewtopic.php?f=96&t=103578) which you need to copy and paste somewhere to keep it for later.
+Mod Pack strings looks something like this:
+
+    eNqFketuwyAMhd/Fv0OUVpW25lWmqSLESdAIRNh0l4h3n9mlitZt5QdCx/7so8MKXs8ILSzaPEEFPZKJdmEbvIgiDNpwiDaczhjpU93Vu/r+Tmpz6Anah/V7RqcJRUavO4c9tBwTVnAF5upCGJeIsYx3tvsPbQTdb0lKHYlnPJHY0+ONvcdjvW8gP1ZAyGz9KL5XINaR0yLPXEFMnu2ManSh0+6j/GOFitqXG4mjNSUidVm5wlm7JMYG7Qhl3BX8FjyqZ9vztOk+NM2fvRPaceLbzbN+UejQFFOWXzfArvk6v2HWD9ZLv5JfxA1UwsubPBaMKhHGklLO76vAwfQ=
+
+If you have multiple mod configuration create a mod pack string for each and note them down.
+
+Double check that you are on a supported version of Node.js by running `node --version`, the version should be v18 or later, if not you will need to update Node.js before continuing.
+
+
+## Migrate installations
+
+**Note:** Check that plugins you are using have updates avaialble for alpha 14 before attempting to update, if they do not either wait for the plugin to be updated or uninstall the plugin from all places it is installed on first.
+
+Shutdown all slaves and the master server and then migrate each installations by running the following command:
+
+    npm exec @clusterio/create -y -- --migrate-rename --log-level=verbose
+
+This will convert the existing installation's usage of the master and slave names in packages, configs, database and logs to the new controller and host terms and update the installed packages.
+
+If you're using systemd then copy the generated clusteriocontroller.service and/or clusteriohost.service files from the systemd folder to /etc/systemd/system/ and remove the old clusteriomaster.service and clusterioslave.service files.
+
+Once the installations have been migrated start up the controller and hosts again.
+
+
+## Post installation
+
+Import the Mod Pack strings that was created beforehand on the controller and upload the mods needed by those mod packs to the controller.
+You can assign a default mod pack in the controller config which instances use by default or set the mod pack on the per instance basis in the instance config.
+Once you have assigned a mod pack to an instance run a data export on the instance in order to properly populate the mod settings in the mod and get item icons and item names resolved in the web interface.
@@ -0,0 +1,67 @@
+# Release workflow
+
+## Update changelog
+
+- CHANGELOG.md in the repository root
+- The changelog.txt file in mod directories
+
+Pull requests will usually have suggestions for changelog entries.
+
+## Packages
+
+> [!NOTE]
+> You will need commit access to the repository as well publish access to the @clusterio org on npm to do this.
+
+1. Ensure you are on the latest version of master branch with no untracked files
+
+    ```sh
+    git switch master
+    git pull --ff-only upstream master
+    git status
+    ```
+
+2. Bump the version in the `package.json` files
+
+    ```sh
+    sed -i 's/2\.0\.0-alpha\.XX/2\.0\.0-alpha\.YY/' {packages,plugins}/*/package.json
+    ````
+
+3. Tag and push the release to github
+
+    ```sh
+    git add -p
+    git commit -m v2.0.0-alpha.XX
+    git tag v2.0.0-alpha.XX
+    ```
+
+4. Perform a clean install and publish the packages.
+
+    ```sh
+    pnpm clean
+    pnpm -r --filter='./{plugins,packages}/*' publish
+    ```
+
+## Plugins
+
+1. Bump the version in the `package.json` file
+2. Run `pnpm install` in the repository root
+3. Run `pnpm adduser` to authenticate
+4. Run `pnpm publish` in the plugin/package directory
+
+Before confirming the publish, ensure the packed size is approximately the same size as the last version (or within the expected size)
+
+After publishing, test creating and installing the plugin on a fresh install.
+
+## Lua mods
+
+To publish lua mods like clusterio_lib, start by building from source:
+
+```sh
+pnpm run build-mod
+```
+
+or download the latest artifacts from the CI. When uploading the mods to the mod portal, make sure the latest version is the last version uploaded, as the game/mod portal/ingame updater isn't consistent in how it figures out the "latest version"
+
+## Release notes
+
+Release notes are expected to be published alongside new releases. We use the github releases system as well as posting in the #announcements channel on the discord. Major releases may warrant a ping.
@@ -1,7 +1,7 @@
 # Setting up TLS

 By default Clusterio will listen for connections over HTTP which is fine for local networks but over the Internet it should idealy be over HTTPS as there are some credentials that could be exposed to eavesdroppers.
-The recommended setup is to have an ordinary HTTPS server software like Apache or Nginx to act as a reverse proxy in front of the Clusterio master server.
+The recommended setup is to have an ordinary HTTPS server software like Apache or Nginx to act as a reverse proxy in front of the Clusterio controller.
 The reverse proxy would then be set up with a TLS certificate from a Certificate Authoritiy like [Let's Encrypt](https://letsencrypt.org).
 Alternatively you can have Clusterio listen for connections over HTTPS directly by providing it with a TLS certificate and private key.

@@ -11,17 +11,17 @@ See the last section for how to create and use a self-signed certificate for an

 ## Using a reverse proxy

-Configure the proxy to forward requests over HTTP to the port the master server is listening to so that for example a request to `https://example.com/instances/` is forwarded to `http://localhost:8080/instances/`.
-It is possible to host the interface under a sub-path, in that case a request under the sub-path should be mapped to the master server with the sub-path stripped out.
+Configure the proxy to forward requests over HTTP to the port the controller is listening to so that for example a request to `https://example.com/instances/` is forwarded to `http://localhost:8080/instances/`.
+It is possible to host the interface under a sub-path, in that case a request under the sub-path should be mapped to the controller with the sub-path stripped out.
 For example `https://example.com/sub/path/instances/` would be mapped to `http://localhost:8080/instances`.

 Additianlly WebSocket connections to `/api/socket` also needs to be forwarded.
 Typically this requires explicit configuration and support for forwarding WebSocket connections.
 If the interface hosted under a sub-path the `/api/socket` address is relative to the sub-path and the sub-path also needs to be stripped out when forwarded.

-You can also optionally set the master server to listen only on the loopback interface to prevent it being directly connected to from the outside.
+You can also optionally set the controller to listen only on the loopback interface to prevent it being directly connected to from the outside.

-    npx clusteriomaster config set master.bind_address 127.0.0.1
+    npx clusteriocontroller config set controller.bind_address 127.0.0.1


 ### Apache Config
@@ -44,7 +44,7 @@ Pay attention to the use of trailing slashes, as they are important.

 ## Hosting HTTPS directly from Node.js

-Listening on HTTPS is supported by the Clusterio master server via the `master.https_port` option provided paths to a certificate file and a private key file is configured for the `master.tls_certificate` and `master.tls_private_key` options.
+Listening on HTTPS is supported by the Clusterio controller via the `controller.https_port` option provided paths to a certificate file and a private key file is configured for the `controller.tls_certificate` and `controller.tls_private_key` options.
 Both of these are expected to be unencrypted PEM files.


@@ -58,14 +58,14 @@ substituting `<ip>` with the IP address the server will be accessed under, for e
 Multiple addresses can be given by supplying a comma sepparated list of `IP:address` pairs and DNS names can also be specified using the `DNS:example.com` format.
 You need to supply every name you want to connect to the server under the subjectAltName field, for example to connect to the HTTPS port locally via an address like `https://localhost:4443/` you need to add `DNS:localhost`.

-This creates a private key file named `key.pem` and a public certificate file named `cert.pem` and these are used for the `master.tls_certificate` and `master.tls_private_key` config options respectively on the master server:
+This creates a private key file named `key.pem` and a public certificate file named `cert.pem` and these are used for the `controller.tls_certificate` and `controller.tls_private_key` config options respectively on the controller:

-    npx clusteriomaster config set master.tls_certificate cert.pem
-    npx clusteriomaster config set master.tls_private_key key.pem
+    npx clusteriocontroller config set controller.tls_certificate cert.pem
+    npx clusteriocontroller config set controller.tls_private_key key.pem

-Additionally you will need copy the `cert.pem` file to all of the computers you want to set up as slaves and configure it as the `slave.tls_ca` option:
+Additionally you will need copy the `cert.pem` file to all of the computers you want to set up as hosts and configure it as the `host.tls_ca` option:

-    npx clusterioslave config set slave.tls_ca cert.pem
+    npx clusteriohost config set host.tls_ca cert.pem

 You will also need to copy the `cert.pem` file to all of the computers you want to remotely manage the cluster via clusterctl and configure it as `control.tls_ca` option:

@@ -12,8 +12,6 @@ The plugin classes have pre-defined hooks that are called during various stages
 - [Plugin Configuration](#plugin-configuration)
 - [Communicating with Factorio](#communicating-with-factorio)
 - [Defining Link Messages](#defining-link-messages)
-    - [Defining Events](#defining-events)
-    - [Defining Requests](#defining-requests)
 - [Sending Link Messages](#sending-link-messages)
    - [Handling connection events](#handling-connection-events)
 - [Collecting Statistics](#collecting-statistics)
@@ -25,9 +23,9 @@ The plugin classes have pre-defined hooks that are called during various stages
 The basic file structure of a plugin is the following.

    plugin_name/
-      +- info.js
+      +- index.js
      +- package.json
-      +- master.js
+      +- controller.js
      +- instance.js
      +- control.js
      +- test/
@@ -41,22 +39,21 @@ The usual guides for creating such packages apply.
 At minimum the `package.json` file must contain a version entry.

 A possible workflow for developing plugins is to place the plugin in a sub-directory of where clusterio has been installed, and rely on Node.js searching up the folder heirarchy for it to find `@clusterio/lib`.
-To add it to `plugin-list.json` so that it gets loaded use the `plugin add <path>` sub-command to either clusteriomaster, clusterioslave or clusterioctl.
+After creating a directory for your plugin, the boilerplate can be generated automaticlly from a set of tempaltes using `npm exec @clusterio/create -y -- --plugin-template` after which you will be asked which areas your plugin will interact with and your plugin's name.
+To add it to `plugin-list.json` so that it gets loaded use the `plugin add <path>` sub-command to either clusteriocontroller, clusteriohost or clusterioctl.
 Note that it's important that the path starts with ./ or ../ (use .\ or ..\ on Windows).

-For a plugin the most important file is the `info.js` file.
-Without it the plugin will not recognized by Clusterio.
-Here's an example of it:
+For a plugin to be recognised by Clusterio it needs to export an entry named `plugin` from its main entrypoint.
+By default the main entrypoint is the `index.js` file, but this may be changed by setting the `"main"` entry to a different file in `package.json`.
+Here's an example of `index.js`:

 ```js
-const { libLink } = require("@clusterio/lib"); // For messages
-
-module.exports = {
+module.exports.plugin = {
    name: "foo_frobber",
    title: "Foo Frobber",
    description: "Does advanced frobnication",
    instanceEntrypoint: "instance",
-    masterEntrypoint: "master",
+    controllerEntrypoint: "controller",
    messages: {
        /* See below */
    },
@@ -80,23 +77,23 @@ The following properties are recognized:
 **instanceEntrypoint**:
    Path to a Node.js module relative to the plugin directory which contains the InstancePlugin class definition for this plugin.
    This is an optional paramater.
-    A plugin may have code only for instances but it must still be loaded on the master in order for it to be possible to load it on an instance.
+    A plugin may have code only for instances but it must still be loaded on the controller in order for it to be possible to load it on an instance.

-**InstanceConfigGroup**:
-    Subclass of `PluginConfigGroup` for defining the per instance configuration fields for this plugin.
+**instanceConfigFields**:
+    Object mapping instance configuration fields to `FieldDefinitions`for this plugin.
    See [Plugin Configuration](#plugin-configuration)

-**masterEntrypoint**:
-    Path to a Node.js module relative to the plugin directory which contains the MasterPlugin class definiton for this plugin.
+**controllerEntrypoint**:
+    Path to a Node.js module relative to the plugin directory which contains the ControllerPlugin class definiton for this plugin.
    This is an optional parameter.
-    A plugin can be made that only runs on the master server.
+    A plugin can be made that only runs on the controller.

-**MasterConfigGroup**:
-    Subclass of `PluginConfigGroup` for defining the master server configuration fields for this plugin.
+**ControllerConfigGroup**:
+    Object mapping controller configuration fields to `FieldDefinitions`for this plugin.
    See [Plugin Configuration](#plugin-configuration)

-**controlEntrypoint**:
-    Path to a Node.js module relative to the plugin directory which contains the ControlPlugin class definition for this plugin.
+**ctlEntrypoint**:
+    Path to a Node.js module relative to the plugin directory which contains the CtlPlugin class definition for this plugin.
    This is an optional paramater.
    A plugin can be made that only runs on the clusterioctl side.

@@ -108,21 +105,21 @@ The optional module folder contains a Clusterio module that will be patched into
 See the section on [Clusterio Modules](developing-for-clusterio.md) in the Developing for Clusterio document.
 The only restriction imposed on modules embedded into plugins is that they must be named the same as the plugin.

-While there is no standard for how to organize a plugin it's recommended to put the MasterPlugin class definition into master.js and the InstancePlugin class definition into instance.js.
+While there is no standard for how to organize a plugin it's recommended to put the ControllerPlugin class definition into controller.js and the InstancePlugin class definition into instance.js.
 You can put them into whatever file you want (even the same one for both).

-For both instanceEntrypoint and masterEntrypoint the path should not end with .js and it should use forward slashes for directory separators if any.
+For both instanceEntrypoint and controllerEntrypoint the path should not end with .js and it should use forward slashes for directory separators if any.


 ## Defining the plugin class

 The plugin class should derive from its respective base class defined in `lib/plugin`.
-For example, to define a MasterPlugin class the following code can be used:
+For example, to define a ControllerPlugin class the following code can be used:

 ```js
-const libPlugin = require("@clusterio/lib/plugin");
+const { BaseControllerPlugin } = require("@clusterio/controller");

-class MasterPlugin extends libPlugin.BaseMasterPlugin {
+class ControllerPlugin extends BaseControllerPlugin {
    async init() {
        this.foo = 42;
        await this.startFrobnication();
@@ -132,12 +129,12 @@ class MasterPlugin extends libPlugin.BaseMasterPlugin {
 }

 module.exports = {
-    MasterPlugin,
+    ControllerPlugin,
 }
 ```

-For the instance plugin it's exactly the same except "Master" is replaced with "Instance", and for the clusterioctl plugin "Control" is used.
-The available hooks that you can override are documented in the base class [in lib/plugin.js](/packages/lib/plugin.js).
+For the instance plugin it's exactly the same except "Controller" is replaced with "Instance", for host plugins "Host" is used and for the clusterioctl plugin "Ctl" is used.
+The available hooks that you can override are documented in the base classes.

 It's best to avoid defining a constructor, but if you insist on defining one, forward all arguments to the base class.
 E.g.:
@@ -157,7 +154,7 @@ The async init method is always called immediatly after the constructor, so ther
 ## Logging Messages

 The base plugin classes provide a winston logger for logging messages to the shared cluster log.
-For instances a copy of the log is also stored on the slave the instance is on.
+For instances a copy of the log is also stored on the host the instance is on.
 To use it, pass a string to one of the log levels functions, for example:

 ```js
@@ -202,39 +199,42 @@ For plugin hooks expections thrown are automatically catched and logged, but for
 ## Plugin Configuration

 Clusterio provides a configuration system that handles storing, distributing, editing and validating config fields for you.
-You can take advantage of it by subclassing `PluginConfigGroup`, setting `defaultAccess` to where config entries can be accessed from, setting the `groupName` to your plugin name, defining fields on it, finalizing it, and passing it as either `MasterConfigGroup` or `InstanceConfigGroup` in the `info.js` export.
-For example in info.js:
+You can take advantage of it by declaring config fields under either `controllerConfigFields` or `instanceConfigFields` in the `plugin` export.
+For example in index.js:

-```js
-const libConfig = require("@clusterio/lib/config");
+```ts
+import type * as lib from "@clusterio/lib";

-class MasterConfigGroup extends libConfig.PluginConfigGroup { }
-MasterConfigGroup.defaultAccess = ["master", "slave", "control"];
-MasterConfigGroup.groupName = "foo_frobber";
-MasterConfigGroup.define({
-    name: "level",
-    description: "Level of frobnication done",
-    type: "number",
-    initial_value: 2,
-});
-MasterConfigGroup.finalize();
+declare module "@clusterio/lib" {
+    // Extend the interface defining available fields so that instance.config.get(...)
+    // will have our own options.
+    export interface ControllerConfigFields {
+        "foo_frobber.level": number, // If optional is true then this should have | null in addition.
+    }
+}

-module.exports = {
+export default {
    ...
-    MasterConfigGroup: MasterConfigGroup,
-};
+    controllerConfigFields: {
+        "foo_frobber.level": {
+            description: "Level of frobnication done",
+            type: "number",
+            initialValue: 2,
+        },
+    }
+} satisfies lib.PluginDeclaration;
 ```

-Code inside the `MasterPlugin` class will then be able to access the level config field through the `Config` object at `this.master.config`, for example in the MasterPluginClass:
+Code inside the `ControllerPlugin` class will then be able to access the level config field through the `Config` object at `this.controller.config`, for example in the ControllerPluginClass:

-```js
+```ts
 async init() {
-    let level = this.master.config.get("foo_frobber.level");
+    let level = this.controller.config.get("foo_frobber.level");
    this.logger.info(`I got a frobnication level of ${level}`);
 }
 ```

-The same applies for instance configs, replace "master" with "instance" where appropriate.
+The same applies for instance configs, replace "controller" with "instance" where appropriate.
 See [Configuration System](config-system.md) for more details on how this system works.


@@ -301,6 +301,20 @@ local clusterio_api = require("modules/clusterio/api")
 clusterio_api.send_json("my_plugin_foo", { data = 123 })
 ```

+For convience a helper function is exposed on server specifically for handling IPC events.
+
+```js
+async init() {
+    this.instance.server.handle("my_plugin_foo", this.handleFoo.bind(this));
+}
+
+async handleFoo(content) {
+    // Do stuff with content
+}
+```
+
+**Note:** This only handles IPC events, all other events must use `on`. You should not include the `ipc-` prefix when using this method. Error logging is handled for you, if you want custom error handling use `on`.
+
 It's recommended to either use the plugin name as the channel name or to prefix the channel name with the name of the plugin if you need multiple channels.
 It's also important to catch any errors that might occur as they will otherwise be propogated to the instance code and kill the server.

@@ -313,8 +327,8 @@ For RCON, commands longer than 50 characters may end up being executed after sho

 ## Defining Link Messages

-You will most likely have to communicate with the master or other instances in your plugin for it to do anything useful.
-For this there's a WebSocket communication channel established between the slaves and the master server that plugins can define their own messages to send over it.
+You will most likely have to communicate with the controller or other instances in your plugin for it to do anything useful.
+For this there's a WebSocket communication channel established between the hosts and the controller that plugins can define their own messages to send over it.
 This channel is bi-directional and all messages sent over it are validated with a JSON schema (see [this guide][guide] for an introduction to writing JSON schema).

 [guide]: https://json-schema.org/learn/getting-started-step-by-step.html
@@ -324,199 +338,161 @@ Events are simple one-way notifications that invoke a handler on the target it's
 Requests are pairs of request and response messages where the request is sent to the target and the response is the reply back from the target.
 The requests are similar to HTTP requests, except both parties of a link may initiate one.

-
-### Defining Events
-
-Events are defined as properties of the messages object exported by `info.js` that map to instances of the `Event` class from `lib/link`.
-The name of the property correspond to the handler invoked on the plugin class.
-The Event constructor takes an object of properties that define the event, for example the following could be defined in `info.js`:
+Messages are defined as items of the `plugin.messages` array exported by `index.js`.
+For example, the following could be defined in `plugin`:

 ```js
-messages: {
-    startFrobnication: new libLink.Event({
-        type: "foo_frobber:start_frobnication",
-        links: ["master-slave", "slave-instance"],
-        forwardTo: "instance",
-        eventRequired: ["frobnication_type"],
-        eventProperties: {
-            "frobnication_type": { type: "string" },
-            "urgent": { type: "boolean" },
-        },
-    }),
-},
-```
-
-This specifies an event that can be sent from the master to a slave, and from a slave to an instance.
-It also specifies that the event must contain the property `frobnication_type`, with a string value in the data payload and that it may optionally contain a boolean `urgent` property.
-It will also be forwarded by slaves to a specific instance.
-
-The following properties are recognized by the Event constructor:
-
-#### type
-
-The message type sent over the wire.
-This must start with the name of the plugin followed by colon and and be unique for the plugin.
-The type of the message sent over the socket will have the suffix `_event` appended to it.
-
-#### links
-
-An array of strings describing which links this event can be sent over.
-Direction matters, `"master-slave"` means the event can be sent from the master to the slave, but can't be sent back the other way, unless `"slave-master"` is also present in the links array.
-
-The available endpoints are `master`, `slave`, `instance`, and `control`.
-Master talks with slave and control, and slave talks to instance.
-The full chain must be specified as the individual links in order for a message to travers multiple hops, (i.e., for a message to go from master to instance it must have both `"master-slave"` and `"slave-instance"` in the links array).
-See `forwardTo` and `broadcastTo` for ways to forward an event to the next link in a chain.
-
-#### forwardTo
-
-Target to forward an event to.
-Can either be `"master"`, to indicate a slave should forward it to the master server, or `"instance"`, to indicate it should be forwarded to the instances specified by the `instance_id` event property.
-This works by using a default handler for the event at the links that forward it.
-
-#### broadcastTo
-
-Target to broadcast this message towards.
-A value of "instance" means the event will be broadcast to all instances downstream of the target it's sent to, but not back from where it came from.
-Currently, only "instance" is supported.
-This means that sending the event to a slave from an instance will cause it to be broadcast to all instances of that slave except for the instance it came from.
-
-#### eventRequired
-
-By default all properties defined in `eventProperties` are required to be present in the payload for the event.
-This can be overriden by specifying an array of properties which are required here.
-This is equivalent to using the `required` keyword in JSON schema.
-
-#### eventProperties
-
-Object with properties mapping to a JSON schema of that property that specifies what's valid to send in the event.
-This is equivalent to using the `properties` keyword in JSON schema, except that the properties specified are by default required and additional properties are not allowed.
-See [this guide][guide] for an introduction to writing JSON schemas.
-
-The forwardTo and broadcastTo can be combined such that specifying `"master"` as the forwardTo value and `"instance"` as the broadcastTo value will cause the event to be broadcast to all instances in the cluster.
-For this to work, you will need to specify `instance-slave`, `slave-master`, `master-slave`, and `slave-instance` as the links.
-
-Keep in mind when forwarding events that if the target an event is being forwarded to is not online, the event will be dropped.
-Use a request if you need a confirmation that the message was received.
-
-### Definining Requests
-
-Requests are defined as properties of the messages object exported by `info.js` that map to instances of the `Request` class from `lib/link`.
-The name of the property corresponds to the handler invoked on the plugin class.
-The Request constructor takes an object of properties that define the event.
-For example, the following could be defined in `info.js`:
-
-```js
-messages: {
-    reportFrobnication: new libLink.Request({
-        type: "foo_frobber:report_frobnication",
-        links: ["master-slave", "slave-instance"],
-        forwardTo: "instance",
-        requestRequired: ["verbosity"],
-        requestProperties: {
-            "verbosity": { type: "integer" },
-            "special": { type: "boolean" },
-        },
-        responseProperties: {
-            "report": {
-                type: "array",
-                items: { type: "string" },
+messages: [
+    class Frobnicate {
+        static plugin = "foo_frobber"; // Plugin name
+        static type = "request";
+        static src = "controller";
+        static dst = "instance";
+        static jsonSchema = {
+            type: "object",
+            properties: {
+                "verbosity": { type: "integer" },
+                "special": { type: "boolean" },
            },
-        },
-    }),
-},
+            required: ["verbosity"],
+            additionalProperties: false,
+        };
+        constructor(json) {
+            this.verbosity = json.verbosity;
+            this.special = json.special;
+        }
+        static fromJSON(json) {
+            return new Frobnicate(json);
+        }
+        toJSON() {
+            return {
+                verbosity: this.verbosity,
+                special: this.special,
+            };
+        }
+        static Response = {
+            jsonSchema: {
+                type: "object",
+                properties: {
+                    "report": {
+                        type: "array",
+                        items: { type: "string" },
+                    },
+                },
+            },
+            fromJSON(json) {
+                return json
+            }
+        }
+    }
+]
 ```

-This specifies a request that can be sent from the master to a slave, and from a slave to an instance.
-The request data must contain the property `verbosity` with an integer number as the value, as well as the `instance_id` property (implied by `forwardTo: "instance"`) and it may also contain a boolean `special` property.
-It also defines that the response sent must contain a `report` property mapping to an array of strings.
-When received by a slave, it will also be forwarded to the instance specified by `instance_id`.
+This specifies a request that can be sent from the controller to an instance, being routed through the correct host behind the scenes.
+The request data must contain the property `verbosity` with an integer number as the value, and it may also contain a boolean `special` property.
+It also defines that the response sent may contain a `report` property mapping to an array of strings.

-The following properties are recognized by the Request constructor:
+The following properties are recognized as part of a message class:

-#### type
+#### static plugin

-The message type sent over the wire.
-This must start with the name of the plugin followed by colon and and be unique for the plugin.
-The type of the message sent over the socket will have the suffix `_request` appended to it for the request and `_response` appended to it for the response.
+Must contain the name of the plugin this message is defined by.
+This property is not used in core messages.

-#### links
+#### static type

-An array of strings describing which links this request can be sent over.
-Direction matters; `"master-slave"` means the request can be sent from the master to the slave and the slave can reply to the master, but the slave can't send a request to the master unless `"slave-master"` is also present in the links array.
+A string describing the message type sent over the wire.
+This can be either `"request"` or `"event"`.
+The primary difference is whether they allow for a response.

-The available endpoints are `master`, `slave`, `instance`, and `control`.
-Master talks with slave and control, and slave talks to instance.
-The full chain must be specified as the individual links in order for a message to travers multiple hops, (i.e., for a message to go from master to instance it must have both `"master-slave"` and `"slave-instance"` in the links array).
-See `forwardTo` for ways to forward a request to the next link in a chain.
+#### static src

-#### forwardTo
+A string or an array of strings describing where this message is allowed to originate from.
+The available endpoints are `"controller"`, `"host"`, `"instance"`, or `"control"`.
+Messages sent from a different source will be rejected.

-Target to forward the request to.
-Can either be `"master"` to indicate a slave should forward it to the master server when receiving it from an instance, or `"instance"` to indicate it should be forwarded to the instances specified by the `instance_id` request property.
-This works by using a default handler for the request by the links that forward it.
+#### static dst

-#### requestRequired
+A string or array of strings describing where this message may be addressed to.
+The available endpoints are `"controller"`, `"host"`, `"instance"`, or `"control"`.
+If the target is multiple hops away it the message will be forwarded towards its destination by the intermediaries.
+For example a message sent from a control connection an instance will be forwarded by the controller to the relevant host and from the host to the correct instance.
+Messages sent to a different destination will be rejected.

-By default all properties defined in `requestProperties` are required to be present in the payload for the request.
-This can be overriden by specifying an array of properties which are required here.
-This is equivalent to using the `required` keyword in JSON schema.
+#### static jsonSchema

-#### requestProperties
+A JSON schema that specifies what's valid to send in the message.

-Object with properties mapping to a JSON schema of that property that specifies what's valid to send in the request.
-This is equivalent to using the `properties` keyword in JSON schema, except that the properties specified are by default required and additional properties are not allowed.
-See [this guide][guide] for an introduction to writing JSON schemas
+#### toJSON

-#### responseRequired
+Optional method to serialize an instance of the class to a JSON object, see the [documentation for `JSON.stringify()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#description) for the semantics of this method.
+This should return an object that's valid according to `jsonSchema` and accepted by `fromJSON`, and may be omitted if the default serialisation by `JSON.stringify()` already does this.

-Same as the requestRequired only for the response sent back by the target.
+#### static fromJSON

-#### responseProperties
+Required function to restore the class from a JSON object.
+This function is called when the message reaches its destination and is expected to return an identical instance of the class.
+I.e. the result of `fromJSON(JSON.parse(JSON.stringify(instance)))` should be a complete copy of the message.

-Same as the requestProperties only for the response sent back by the target.
+#### static Response

+Optional [JSON sterilisable class](/docs/devs/json-serialisable-classes.md) that specifies the response to the request.
+Required properties are `jsonSchema` and `fromJSON`.

 ## Sending Link Messages

-Link messages are sent by calling the `.send()` method on the Event/Request instance with the link you want to send it over and the data to send.
-For `InstancePlugin` code the link to the slave is the `instance` itself, which is accessible through the `.instance` property of the `InstancePlugin`.
-The `.info` property of the plugin class exposes the data exported from the plugin's `info.js` module.
-In other words:
+Link messages are sent by calling the `.sendTo()` method on a connection object with the destination and the data you want to send, where the data is an instance of one of the defined message classes in plugin.messages.
+For example:

 ```js
 // In an InstancePlugin class
 async frobnicate() {
-    this.info.messages.exampleEvent.send(this.instance, { foo: "bar" });
+    const response = await this.instance.sendTo("controller", new messages.Frobnicate({ 
+        verbosity: 2,
+        special: false,
+    }));
+    console.log(response); // { report: [...] }
 }
 ```

-For the Request class the send method is async and returns the response data received from the target it was sent to, or throws an error if the request failed.
+For classes with `static type = "request"` the send method is async and returns a promise that resolves to the response data received from the target it was sent to, or rejects with an error if the request failed.
+The destination specification can either be the ID of a particular control, host or instance, or one of the keywords used to send to multiple targets at once.

+Example destinations:
+
+```js
+sendTo("controller", message);
+sendTo("allHosts", message);
+sendTo("allControls", message);
+sendTo("allInstances", message);
+sendTo({ hostId: 123 }, message);
+sendTo({ instanceId: 123 }, message);
+sendTo({ controlId: 123 }, message);
+```

 ### Handling connection events

 There are a few connection related events that plugins neeed to repsond to in order to avoid data loss and connection problems.
-The most important is the prepare disconnect for the link between master and slave.
-This is signaled to `MasterPlugin` classes via the `onPrepareSlaveDisconnect` hook and to `InstancePlugin` classes via the `onPrepareMasterDisconnect` hook.
+The most important is the prepare disconnect for the link between controller and host.
+This is signaled to `ControllerPlugin` classes via the `onPrepareHostDisconnect` hook and to `InstancePlugin` classes via the `onPrepareControllerDisconnect` hook.

 After the prepare disconnect the connection will be closed, which will result in pending requests and events being dropped.
 Plugins must respond to the prepare disconnect by stopping any processess it does that send events or requests over the link in question.
-This can be accomplished either through listening for the prepare disconnect hook, or by checking the `connected` property of the `SlaveConnection` class and `Slave` class on the master and slave respectively.
+This can be accomplished either through listening for the prepare disconnect hook, or by checking the `connected` property of the `HostConnection` class and `Host` class on the controller and host respectively.
 For example the sending of an event from an `InstancePlugin` class can be stopped while the connection is not connected, not in the dropped state, and not in the process of discunnecting by using the following code:

 ```js
-if (this.slave.connected) {
-    this.info.messages.frobnicate.send(this.instance, { foo: "bar" });
+if (this.host.connected) {
+    this.instance.sendTo("controller", new messages.Frobnicate({ foo: "bar" }));
 }
 ```

-If the event or request needs to be sent to the master it can be put into a queue stored on the plugin instance and sent out when the connection is established again.
-The re-establishement of the connection is  notified to plugins via the `connect` event to the `onMasterConnectionEvent` and `onSlaveConnectionEvent` hooks.
+If the event or request needs to be sent to the controller it can be put into a queue stored on the plugin instance and sent out when the connection is established again.
+The re-establishement of the connection is  notified to plugins via the `connect` event to the `onControllerConnectionEvent` and `onHostConnectionEvent` hooks.

-The second connection event which is of lesser importance to respond to is the `drop` connection event served through `onMasterConnectionEvent` for `InstancePlugin` classes and through `onSlaveConnectionEvent` for `MasterPlugin` classes.
-This is raised when the connection between the master and slave in question is lost, most likely due to networking issues.
-When in the dropped state the slave will keep trying to reconnect to the master server in order to re-establish it, and if successful no events or requests will be lost.
+The second connection event which is of lesser importance to respond to is the `drop` connection event served through `onControllerConnectionEvent` for `InstancePlugin` classes and through `onHostConnectionEvent` for `ControllerPlugin` classes.
+This is raised when the connection between the controller and host in question is lost, most likely due to networking issues.
+When in the dropped state the host will keep trying to reconnect to the controller in order to re-establish it, and if successful no events or requests will be lost.
 However while in the dropped state any requests and events sent gets queued up in memory until the connection is either re-established or the session times out.
 This means that if your plugin sends a lot of events or requests, they can end up being queued up in a buffer and sent out all at once the connection is re-estabished.
 To avoid this you should be throtteling and/or stopping your requests/events after `drop` has been raised, and continue back as normal when `resume` is raised.
@@ -530,23 +506,23 @@ In its simplest form collecting data from plugins consists of defining the metri
 For example:

 ```js
-const { Counter } = require("@clusterio/lib/prometheus");
+const { Counter } = require("@clusterio/lib");

 const fooMetric = new Counter(
    "clusterio_foo_frobber_foo_metric", "Measures the level of foo",
 );

-// Somewhere in the master plugin code
+// Somewhere in the controller plugin code
 fooMetric.inc();
 ```

-This works for master plugins, and the metric will be automatically available through the /metric HTTP endpoint.
+This works for controller plugins, and the metric will be automatically available through the /metric HTTP endpoint.
 It's recommended that plugin metrics follow `clusterio_<plugin_name>_<metric_name>` as the naming scheme.

 For metrics that are per-instance, you must define an `instance_id` label and set it accordingly, for example:

 ```js
-const { Counter } = require("@clusterio/lib/prometheus");
+const { Counter } = require("@clusterio/lib");

 const barMetric = new Gauge(
    "clusterio_foo_frobber_bar_metric", "Bar instance level",
@@ -557,11 +533,11 @@ const barMetric = new Gauge(
 barMetric.labels(String(this.instance.id)).set(someValue);
 ```

-Metrics are automatically registered to the default registry, and this default registry is automatically polled by the master server on slaves.
-This means that it's important that you place the definition of the metric at module level so that it's not created more than once over the lifetime of a slave.
+Metrics are automatically registered to the default registry, and this default registry is automatically polled by the controller on hosts.
+This means that it's important that you place the definition of the metric at module level so that it's not created more than once over the lifetime of a host.
 Since the metrics remember their values and would continue to be exported after an instance is shutdown, there's code at instance shutdown that removes all the values where the `instance_id` label matches the id of the instance shut down.

-For statistics you need to update on collection there's an `onMetrics` hook on both master and instance plugins that is run before the metrics in the default registry are collected.
+For statistics you need to update on collection there's an `onMetrics` hook on both controller and instance plugins that is run before the metrics in the default registry are collected.


 ## Adding Custom Commands to clusterioctl
@@ -570,7 +546,7 @@ The control entrypoint for plugins allows you to extend clustectl with your own
 The creation of custom commands typically starts with defining a command tree for the plugin:

 ```js
-const { Command, CommandTree } = require("@clusterio/lib/command");
+const { Command, CommandTree } = require("@clusterio/lib");
 const fooFrobberCommands = new CommandTree({
    name: "foo-frobber", description: "Foo Frobber Plugin commands"
 });
@@ -600,20 +576,20 @@ For a command the `definition` is the arguments to pass to [yargs.command](http:
 The `handler` is an async function that's invoked when the command is executed and it's passed the parsed command line arguments and a reference to the `Control` class of clusterioctl.
 It's possible to optain a reference to the plugin class with `control.plugins.get(info.name)`.

-Note that messages sent from clusterioctl needs to have `"control-master"` as a part of the links array for it to be accepted by the master server, see [Defining Link Messages](#defining-link-messages) for how to define the messages that can be sent to the master.
+Note that messages sent from clusterioctl needs to have `"control-controller"` as a part of the links array for it to be accepted by the controller, see [Defining Link Messages](#defining-link-messages) for how to define the messages that can be sent to the controller.

-To have the command tree become part of clusterioctl it needs to be added to the rootCommand tree in `addCommands` callback of the Control plugin:
+To have the command tree become part of clusterioctl it needs to be added to the rootCommand tree in `addCommands` callback of the Ctl plugin:

 ```js
-const libPlugin = require("@clusterio/lib/plugin");
+const { BaseCtlPlugin } = require("@clusterio/ctl");

-class ControlPlugin extends libPlugin.BaseControlPlugin {
+class CtlPlugin extends BaseCtlPlugin {
    async addCommands(rootCommand) {
        rootCommand.add(fooFrobberCommands);
    }
 }

 module.exports = {
-    ControlPlugin,
+    CtlPlugin,
 }
-```
+```
@@ -0,0 +1,3 @@
+*
+!.gitignore
+!README.md
@@ -0,0 +1,4 @@
+# External plugins directory
+
+Plugins placed here will have their npm dependencies incorporated in the shared pnpm storage for this repository when `pnpm install` is invoked.
+Use this to enable `--dev-plugin` to work with plugins developed outside of the Clusterio repository.
@@ -1,8 +0,0 @@
-{
-  "packages": [
-    "packages/*",
-    "plugins/*",
-    "test"
-  ],
-  "version": "2.0.0-alpha.12"
-}
@@ -1,31 +1,61 @@
 {
-  "name": "root",
-  "private": true,
-  "scripts": {
-    "test": "mocha --check-leaks -R spec --exclude \"**/node_modules/**\" --recursive test plugins/global_chat/test plugins/research_sync/test plugins/statistics_exporter/test plugins/subspace_storage/test plugins/player_auth/test",
-    "fast-test": "FAST_TEST=y npm test",
-    "cover": "nyc npm test",
-    "fast-cover": "FAST_TEST=y nyc npm test",
-    "ci-cover": "nyc --reporter=lcovonly npm run-script test",
-    "lint": "eslint \"*.js\" packages plugins test",
-    "docs": "jsdoc --configure docs/jsdoc.json",
-    "bundle-dependencies": "bundle-dependencies"
-  },
-  "nyc": {
-    "exclude": [
-      "test/**",
-      "plugins/*/test/**"
-    ]
-  },
-  "engines": {
-    "node": ">=12"
-  },
-  "devDependencies": {
-    "eslint": "^7.25.0",
-    "eslint-plugin-node": "^11.1.0",
-    "jsdoc": "^3.6.6",
-    "lerna": "^4.0.0",
-    "mocha": "^8.4.0",
-    "nyc": "^15.1.0"
-  }
+	"name": "root",
+	"private": true,
+	"files": [],
+	"scripts": {
+		"build": "tsc --build",
+		"watch": "tsc --build --watch",
+		"build-mod": "node ./packages/lib/build_mod.js --source-dir ./packages/host/lua/clusterio_lib",
+		"test": "pnpm run build && mocha --enable-source-maps --check-leaks -R spec --recursive test \"plugins/*/test/**\" --exclude \"test/manual/**\"",
+		"silent-test": "SILENT_TEST=y pnpm test",
+		"fast-test": "FAST_TEST=y pnpm test",
+		"cover": "nyc pnpm test",
+		"fast-cover": "FAST_TEST=y nyc pnpm test",
+		"ci-cover": "nyc --reporter=lcovonly pnpm run-script test",
+		"lint": "eslint packages plugins test",
+		"lint-fix": "eslint --fix packages plugins test",
+		"clean": "node ./clean.js fast",
+		"clean-tests": "node ./clean.js tests",
+		"clean-all": "node ./clean.js all",
+		"docs": "typedoc",
+		"bundle-dependencies": "bundle-dependencies"
+	},
+	"nyc": {
+		"exclude": [
+			"test/**",
+			"plugins/*/test/**"
+		]
+	},
+	"engines": {
+		"node": ">=18"
+	},
+	"workspaces": [
+		"packages/*",
+		"plugins/*",
+		"external_plugins/*",
+		"external_plugins/*/*"
+	],
+	"devDependencies": {
+		"@clusterio/controller": "workspace:*",
+		"@clusterio/ctl": "workspace:*",
+		"@clusterio/host": "workspace:*",
+		"@clusterio/lib": "workspace:*",
+		"@clusterio/web_ui": "workspace:*",
+		"@swc/core": "^1.11.1",
+		"@typescript-eslint/eslint-plugin": "^6.4.1",
+		"@typescript-eslint/parser": "^6.4.1",
+		"eslint": "^8.57.1",
+		"eslint-plugin-node": "^11.1.0",
+		"express": "^4.21.2",
+		"form-data": "^4.0.2",
+		"fs-extra": "^11.3.0",
+		"jsonwebtoken": "^9.0.1",
+		"jszip": "^3.10.0",
+		"mocha": "^10.8.2",
+		"nyc": "^15.1.0",
+		"phin": "^3.7.0",
+		"typedoc": "^0.26.11",
+		"typescript": "^5.7.3",
+		"yargs": "^17.7.2"
+	}
 }
@@ -1 +1,2 @@
 webpack.config.js
+dist/browser
@@ -1,27 +1,27 @@
-# Clusterio Master Server
+# Clusterio Controller

 Communication hub for Clusterio clusters.
-The master server forwards data between Clusterio slaves connected to it and allows the cluster to be remotely managed through WebSocket connections to it either by using the included web interface or the Clusterio ctl command line utility.
+The controller forwards data between Clusterio hosts connected to it and allows the cluster to be remotely managed through WebSocket connections to it either by using the included web interface or the Clusterio ctl command line utility.


 # Usage

-    npx clusteriomaster <command>
+    npx clusteriocontroller <command>

 Common options:

- * `--plugin-list <file>` JSON file to use for storing the list of plugins that are available to the master server.
+ * `--plugin-list <file>` JSON file to use for storing the list of plugins that are available to the controller.
   Defaults to `plugin-list.json` and will be created if it does not exist.
   See the `plugin` command for managing this list.

- * `--config <file>` JSON file to use for storing configuration for the master server.
-   Defaults to `config-master.json` and will be created if it does not exist.
+ * `--config <file>` JSON file to use for storing configuration for the controller.
+   Defaults to `config-controller.json` and will be created if it does not exist.
   See the `config` command for inspecting and modifying the configuration.


 ### `plugin <command>`

-Configure plugins available to be loaded by the master server.
+Configure plugins available to be loaded by the controller.
 The available plugins will be loaded unless they have been disabled in the configuration, see the config command for disabling plugins.


@@ -33,9 +33,9 @@ A relative path must start with ./ or ../ (or .\ and ..\ on Windows) otherwise i
 For example, installing the Subspace Storage plugin:

    npm install @clusterio/plugin-subspace_storage
-    npx clusteriomaster plugin add @clusterio/plugin-subspace_storage
+    npx clusteriocontroller plugin add @clusterio/plugin-subspace_storage

-Since the `plugin-list.json` is shared between master, slave and ctl you usually only need to do this once per machine.
+Since the `plugin-list.json` is shared between controller, host and ctl you usually only need to do this once per machine.


 #### `plugin remove <name>`
@@ -46,10 +46,10 @@ Removing and unistalling a plugin is usually not neccessary as the functions pro

 For example, uninstalling the Subspace Storage plugin:

-    npx clusteriomaster plugin remove subspace_storage
+    npx clusteriocontroller plugin remove subspace_storage
    npm uninstall @clusterio/plugin-subspace_storage

-Since the `plugin-list.json` is shared between master, slave and ctl you usually only need to do this once per machine.
+Since the `plugin-list.json` is shared between controller, host and ctl you usually only need to do this once per machine.


 #### `plugin list`
@@ -59,8 +59,8 @@ Lists the plugins set up to be available by name followed by path.

 ### `config`

-Manage the master server configuration offline.
-This should only be used when the master server is stopped, otherwise the config read might be out of date and config changes will be overwritten when the master server shuts down.
+Manage the controller configuration offline.
+This should only be used when the controller is stopped, otherwise the config read might be out of date and config changes will be overwritten when the controller shuts down.


 #### `config set <config-entry> [value]`
@@ -96,7 +96,7 @@ You should be using your own Factorio multiplayer username here.
 #### `bootstrap generate-user-token <name>`

 Generate an access token for logging in and possibly managing the cluster from the given user account.
-This can be used both in the web interface and as the `master_token` to connect with clusterioctl.
+This can be used both in the web interface and as the `controller_token` to connect with clusterioctl.


 #### `bootstrap create-ctl-config <name>`
@@ -106,7 +106,7 @@ Creates a clusterioctl config for the given user with url and token set up for c

 ### `run`

-Runs the master server.
+Runs the controller.


 ## See Also
@@ -0,0 +1,487 @@
+#!/usr/bin/env node
+
+/**
+ * Clusterio controller
+ *
+ * Facilitates communication between hosts and control of the cluster
+ * through WebSocet connections, and hosts a webserver for browser
+ * interfaces and Prometheus statistics export.  It is remotely controlled
+ * by {@link module:ctl/ctl}.
+ *
+ * @module controller/controller
+ * @author Danielv123, Hornwitser
+ * @example
+ * npx clusteriocontroller run
+ */
+
+import path from "path";
+import fs from "fs-extra";
+
+import crypto from "crypto";
+import setBlocking from "set-blocking";
+import yargs from "yargs";
+import util from "util";
+import winston from "winston";
+import DailyRotateFile from "winston-daily-rotate-file";
+
+import jwt from "jsonwebtoken";
+
+// homebrew modules
+import * as lib from "@clusterio/lib";
+const { ConsoleTransport, levels, logger } = lib;
+
+import Controller from "./src/Controller";
+import UserManager from "./src/UserManager";
+import { version } from "./package.json";
+
+// globals
+let controller: Controller;
+
+void new lib.Gauge(
+	"clusterio_controller_pending_requests",
+	"Count of pending link requests currently waiting in memory on the controller.",
+	{
+		callback: (gauge) => {
+			let count = 0;
+			if (controller) {
+				for (const host of controller.wsServer.hostConnections.values()) {
+					count += host.pendingRequestCount;
+				}
+				for (const control of controller.wsServer.controlConnections.values()) {
+					count += control.pendingRequestCount;
+				}
+			}
+			gauge.set(count);
+		},
+	}
+);
+
+void new lib.Gauge(
+	"clusterio_controller_host_mapping",
+	"Mapping of Host ID to name",
+	{
+		labels: ["host_id", "host_name"],
+		callback: function(gauge:lib.Gauge) {
+			gauge.clear();
+			if (!controller || !controller.hosts) {
+				return;
+			}
+			for (const host of controller.hosts.values()) {
+				gauge.labels({
+					host_id: String(host.id),
+					host_name: host.name,
+				}).set(1);
+			};
+		},
+	}
+);
+
+void new lib.Gauge(
+	"clusterio_controller_instance_mapping",
+	"Mapping of Instance ID to name and host",
+	{
+		labels: ["instance_id", "instance_name", "host_id"],
+		callback: function(gauge:lib.Gauge) {
+			gauge.clear();
+			if (!controller || !controller.instances) {
+				return;
+			}
+			for (const instance of controller.instances.values()) {
+				gauge.labels({
+					instance_id: String(instance.id),
+					instance_name: String(instance.config.get("instance.name")),
+					host_id: String(instance.config.get("instance.assigned_host")),
+				}).set(1);
+			}
+		},
+	}
+);
+
+void new lib.Gauge(
+	"clusterio_controller_websocket_active_connections",
+	"How many WebSocket connections are currently open to the controller",
+	{ callback: function(gauge:lib.Gauge) {
+		gauge.set(controller.wsServer.activeConnectors.size);
+	}}
+);
+
+void new lib.Gauge(
+	"clusterio_controller_active_hosts",
+	"How many hosts are currently connected to the controller",
+	{ callback: function(gauge:lib.Gauge) {
+		gauge.set(controller.wsServer.hostConnections.size);
+	}}
+);
+
+void new lib.Gauge(
+	"clusterio_controller_connected_clients_count",
+	"How many clients are currently connected to this controller",
+	{
+		labels: ["type"], callback: async function(gauge:lib.Gauge) {
+			gauge.labels("host").set(controller.wsServer.hostConnections.size);
+			gauge.labels("control").set(controller.wsServer.controlConnections.size);
+		},
+	},
+);
+
+
+async function handleBootstrapCommand(
+	args: any,
+	controllerConfig: lib.ControllerConfig
+): Promise<void> {
+	let subCommand = args._[1];
+	let userManager = new UserManager(controllerConfig);
+	await userManager.load(path.join(controllerConfig.get("controller.database_directory"), "users.json"));
+	if (subCommand === "create-admin") {
+		if (!args.name) {
+			logger.error("name cannot be blank");
+			process.exitCode = 1;
+			return;
+		}
+
+		let admin = userManager.getByName(args.name);
+		if (!admin) {
+			admin = userManager.createUser(args.name);
+		}
+
+		let adminRole = lib.ensureDefaultAdminRole(userManager.roles);
+		admin.roleIds.add(adminRole.id);
+		admin.isAdmin = true;
+		await userManager.save(path.join(controllerConfig.get("controller.database_directory"), "users.json"));
+
+	} else if (subCommand === "generate-user-token") {
+		let user = userManager.getByName(args.name);
+		if (!user) {
+			logger.error(`No user named '${args.name}'`);
+			process.exitCode = 1;
+			return;
+		}
+		// eslint-disable-next-line no-console
+		console.log(userManager.signUserToken(user));
+
+	} else if (subCommand === "generate-host-token") {
+		// eslint-disable-next-line no-console
+		console.log(jwt.sign(
+			{ aud: "host", host: args.id },
+			Buffer.from(controllerConfig.get("controller.auth_secret"), "base64")
+		));
+
+	} else if (subCommand === "create-ctl-config") {
+		let admin = userManager.getByName(args.name);
+		if (!admin) {
+			logger.error(`No user named '${args.name}'`);
+			process.exitCode = 1;
+			return;
+		}
+		let controlConfig = new lib.ControlConfig("control");
+
+		controlConfig.set("control.controller_url", Controller.calculateControllerUrl(controllerConfig));
+		controlConfig.set(
+			"control.controller_token",
+			userManager.signUserToken(admin),
+		);
+
+		let content = JSON.stringify(controlConfig, null, "\t");
+		if (args.output === "-") {
+			// eslint-disable-next-line no-console
+			console.log(content);
+		} else {
+			logger.info(`Writing ${args.output}`);
+			await lib.safeOutputFile(args.output, content);
+		}
+	}
+}
+
+
+export interface ControllerArgs {
+	[x: string]: unknown;
+	logLevel: string;
+	logDirectory: string;
+	pluginList: string;
+	devPlugin?: (string | number)[] | undefined;
+	dev?: boolean;
+	config: string;
+	_: (string | number)[];
+	$0: string;
+}
+
+interface InitializeParameters {
+	args: ControllerArgs;
+	shouldRun: boolean;
+	clusterLogger: winston.Logger;
+	pluginInfos: lib.PluginNodeEnvInfo[] | null;
+	controllerConfigPath: string | null;
+	controllerConfig: lib.ControllerConfig | null;
+}
+
+async function initialize(): Promise<InitializeParameters> {
+	// argument parsing
+	const args = await yargs
+		.scriptName("controller")
+		.usage("$0 <command> [options]")
+		.option("log-level", {
+			nargs: 1,
+			describe: "Log level to print to stdout",
+			default: "info",
+			choices: ["none"].concat(Object.keys(levels)),
+			type: "string",
+		})
+		.option("log-directory", {
+			nargs: 1,
+			describe: "Directory to place logs in",
+			default: "logs",
+			type: "string",
+		})
+		.option("config", {
+			nargs: 1,
+			describe: "controller config file to use",
+			default: "config-controller.json",
+			type: "string",
+		})
+		.option("plugin-list", {
+			nargs: 1,
+			describe: "File containing list of plugins available with their install path",
+			default: "plugin-list.json",
+			type: "string",
+		})
+		.command("plugin", "Manage available plugins", lib.pluginCommand)
+		.command("config", "Manage Controller config", lib.configCommand)
+		.command("bootstrap", "Bootstrap access to cluster", yargs => {
+			yargs
+				.command("create-admin <name>", "Create a cluster admin", yargs => {
+					yargs.positional("name", { describe: "Name of the admin user", type: "string" });
+				})
+				.command("generate-user-token <name>", "Generate authentication token for the given user", yargs => {
+					yargs.positional("name", { describe: "Name of the user", type: "string" });
+				})
+				.command("generate-host-token <id>", "Generate authentication token for the given host", yargs => {
+					yargs.positional("id", { describe: "ID of the host", type: "number" });
+				})
+				.command("create-ctl-config <name>", "Create clusterioctl config for the given user", yargs => {
+					yargs.option("output", {
+						describe: "Path to output config (- for stdout)", type: "string",
+						nargs: 1, default: "config-control.json",
+					});
+				})
+				.demandCommand(1, "You need to specify a command to run");
+		})
+		.command("run", "Run controller", yargs => {
+			yargs.option("can-restart", {
+				type: "boolean", nargs: 0, default: false,
+				describe: "Indicate that a process monitor will restart the controller on failure",
+			});
+			yargs.option("dev", { hidden: true, type: "boolean", nargs: 0 });
+			yargs.option("dev-plugin", { hidden: true, type: "array" });
+		})
+		.demandCommand(1, "You need to specify a command to run")
+		.strict()
+		.argv
+	;
+
+	// Combined log stream of the whole cluster.
+	const clusterLogger = winston.createLogger({
+		format: winston.format.json(),
+		level: "verbose",
+		levels,
+	});
+	clusterLogger.add(new DailyRotateFile({
+		format: winston.format.json(),
+		filename: "cluster-%DATE%.log",
+		utc: true,
+		dirname: path.join(args.logDirectory, "cluster"),
+	}));
+
+	// Log stream for the controller.
+	logger.add(new DailyRotateFile({
+		format: winston.format.json(),
+		filename: "controller-%DATE%.log",
+		utc: true,
+		dirname: path.join(args.logDirectory, "controller"),
+	}));
+	logger.add(new winston.transports.Stream({
+		stream: clusterLogger,
+	}));
+	if (args.logLevel !== "none") {
+		logger.add(new ConsoleTransport({
+			level: args.logLevel,
+			format: new lib.TerminalFormat(),
+		}));
+	}
+	lib.handleUnhandledErrors();
+
+	let command = args._[0];
+	let shouldRun = false;
+	if (command === "run") {
+		logger.info(`Starting Clusterio controller ${version}`);
+		shouldRun = true;
+	}
+
+	logger.info(`Loading available plugins from ${args.pluginList}`);
+	let pluginList = await lib.loadPluginList(args.pluginList);
+
+	// If the command is plugin management we don't try to load plugins
+	if (command === "plugin") {
+		await lib.handlePluginCommand(args, pluginList, args.pluginList);
+		return {
+			args,
+			shouldRun,
+			clusterLogger,
+			pluginInfos: null,
+			controllerConfigPath: null,
+			controllerConfig: null,
+		};
+	}
+
+	logger.info("Loading Plugin info");
+	const pluginInfos = await lib.loadPluginInfos(pluginList);
+	lib.registerPluginMessages(pluginInfos);
+	lib.addPluginConfigFields(pluginInfos);
+
+	const controllerConfigPath = args.config;
+	logger.info(`Loading config from ${controllerConfigPath}`);
+	let controllerConfig = new lib.ControllerConfig("controller");
+	try {
+		let jsonConfig = JSON.parse(await fs.readFile(controllerConfigPath, { encoding: "utf8" }));
+		controllerConfig = lib.ControllerConfig.fromJSON(jsonConfig, "controller");
+
+	} catch (err: any) {
+		if (err.code === "ENOENT") {
+			logger.info("Config not found, initializing new config");
+			controllerConfig = new lib.ControllerConfig("controller");
+
+		} else {
+			throw new lib.StartupError(`Failed to load ${controllerConfigPath}: ${err.message}`);
+		}
+	}
+
+	if (!controllerConfig.get("controller.auth_secret")) {
+		logger.info("Generating new controller authentication secret");
+		let asyncRandomBytes = util.promisify(crypto.randomBytes);
+		let bytes = await asyncRandomBytes(256);
+		controllerConfig.set("controller.auth_secret", bytes.toString("base64"));
+		await lib.safeOutputFile(
+			controllerConfigPath, JSON.stringify(controllerConfig, null, "\t")
+		);
+	}
+
+	if (command === "config") {
+		await lib.handleConfigCommand(
+			args, controllerConfig, controllerConfigPath
+		);
+
+	} else if (command === "bootstrap") {
+		await handleBootstrapCommand(args, controllerConfig);
+	}
+
+	return {
+		args,
+		clusterLogger,
+		pluginInfos,
+		controllerConfigPath,
+		controllerConfig,
+		shouldRun,
+	};
+}
+
+async function startup() {
+	// Set the process title, shows up as the title of the CMD window on windows
+	// and as the process name in ps/top on linux.
+	process.title = "clusteriocontroller";
+
+	let {
+		args,
+		shouldRun,
+		clusterLogger,
+		pluginInfos,
+		controllerConfigPath,
+		controllerConfig,
+	} = await initialize();
+	if (!shouldRun || !pluginInfos || !controllerConfigPath || !controllerConfig) {
+		return;
+	}
+
+	controller = new Controller(
+		clusterLogger,
+		pluginInfos,
+		controllerConfigPath,
+		controllerConfig,
+		Boolean(args.canRestart),
+		...await Controller.bootstrap(controllerConfig)
+	);
+
+	let secondSigint = false;
+	process.on("SIGINT", () => {
+		if (secondSigint) {
+			setBlocking(true);
+			logger.fatal("Caught second interrupt, terminating immediately");
+			// eslint-disable-next-line node/no-process-exit
+			process.exit(1);
+		}
+
+		secondSigint = true;
+		logger.info("Caught interrupt signal, shutting down");
+		controller.stop();
+	});
+	let secondSigterm = false;
+	process.on("SIGTERM", () => {
+		if (secondSigterm) {
+			setBlocking(true);
+			logger.fatal("Caught second termination, terminating immediately");
+			// eslint-disable-next-line node/no-process-exit
+			process.exit(1);
+		}
+
+		secondSigterm = true;
+		logger.info("Caught termination signal, shutting down");
+		controller.stop();
+	});
+
+	process.on("SIGHUP", () => {
+		logger.info("Terminal closed, shutting down");
+		controller.stop();
+	});
+
+	await controller.start(args);
+}
+
+export function bootstrap() {
+	// eslint-disable-next-line no-console
+	console.warn(`
+==========================================================+
+I WARNING:  This is the development branch for the 2.0     I
+I           version of clusterio.  Expect things to break. I
+==========================================================+
+`
+	);
+	startup().catch(err => {
+		if (err instanceof lib.StartupError) {
+			logger.fatal(`
+-------------------------------+
+| Unable to to start controller |
+-------------------------------+
+${err.stack}`
+			);
+		} else if (err instanceof lib.PluginError) {
+			logger.fatal(`
+${err.pluginName} plugin threw an unexpected error
+during startup, please report it to the plugin author.
+------------------------------------------------------
+${err.original.stack}`
+			);
+		} else {
+			logger.fatal(`
+------------------------------------------------------------+
+| Unexpected error occured while starting controller, please |
+| report it to https://github.com/clusterio/clusterio/issues |
+------------------------------------------------------------+
+${err.stack}`
+			);
+		}
+
+		process.exitCode = 1;
+	});
+}
+
+if (module === require.main) {
+	bootstrap();
+}
@@ -0,0 +1,14 @@
+import { bootstrap } from "./controller";
+export { default as Controller } from "./src/Controller";
+export { default as ControllerUser } from "./src/ControllerUser";
+export { default as ControllerRouter } from "./src/ControllerRouter";
+export { default as ControlConnection } from "./src/ControlConnection";
+export { default as HostConnection } from "./src/HostConnection";
+export { default as InstanceInfo } from "./src/InstanceInfo";
+export { default as BaseControllerPlugin } from "./src/BaseControllerPlugin";
+export { default as UserManager } from "./src/UserManager";
+export { default as WsServer } from "./src/WsServer";
+
+if (module === require.main) {
+	bootstrap();
+}
@@ -0,0 +1,63 @@
+{
+	"name": "@clusterio/controller",
+	"description": "Implementation of Clusterio controller",
+	"author": "Hornwitser",
+	"license": "MIT",
+	"version": "2.0.0-alpha.20",
+	"main": "dist/node/index.js",
+	"scripts": {
+		"prepare": "tsc --build && webpack-cli --env production",
+		"test": "echo \"Error: no test specified\" && exit 1"
+	},
+	"bin": {
+		"clusteriocontroller": "./dist/node/controller.js"
+	},
+	"keywords": [
+		"clusterio",
+		"factorio"
+	],
+	"engines": {
+		"node": ">=18"
+	},
+	"dependencies": {
+		"@clusterio/lib": "workspace:*",
+		"@sinclair/typebox": "^0.30.4",
+		"busboy": "^1.6.0",
+		"compression": "^1.8.0",
+		"express": "^4.21.2",
+		"finalhandler": "^1.3.1",
+		"fs-extra": "^11.3.0",
+		"jsonwebtoken": "^9.0.1",
+		"jszip": "^3.10.1",
+		"set-blocking": "^2.0.0",
+		"winston": "^3.17.0",
+		"winston-daily-rotate-file": "^4.7.1",
+		"ws": "^8.18.1",
+		"yargs": "^17.7.2"
+	},
+	"devDependencies": {
+		"@clusterio/web_ui": "workspace:*",
+		"@swc/core": "^1.11.1",
+		"@types/busboy": "^1.5.0",
+		"@types/compression": "^1.7.2",
+		"@types/express": "^4.17.17",
+		"@types/finalhandler": "^1.2.0",
+		"@types/fs-extra": "^11.0.1",
+		"@types/jsonwebtoken": "^9.0.9",
+		"@types/node": "^20.17.19",
+		"@types/set-blocking": "^2.0.0",
+		"@types/ws": "^8.5.14",
+		"@types/yargs": "^17.0.33",
+		"react": "^18.2.0",
+		"react-dom": "^18.2.0",
+		"react-router-dom": "^6.29.0",
+		"typescript": "^5.7.3",
+		"webpack": "^5.98.0",
+		"webpack-cli": "^5.1.4",
+		"webpack-dev-middleware": "^6.1.1",
+		"webpack-merge": "^5.9.0"
+	},
+	"publishConfig": {
+		"access": "public"
+	}
+}
@@ -0,0 +1,109 @@
+import path from "path";
+import fs from "fs-extra";
+
+import type Controller from "./Controller";
+import type WsServerConnector from "./WsServerConnector";
+
+import * as lib from "@clusterio/lib";
+const { logger } = lib;
+import * as routes from "./routes";
+
+
+/**
+ * Base class for controller connections
+ *
+ * @extends module:lib.Link
+ * @alias module:controller/src/BaseConnection
+ */
+export default class BaseConnection extends lib.Link {
+	declare ["connector"]: WsServerConnector;
+
+	constructor(
+		connector: lib.WebSocketBaseConnector,
+		public _controller: Controller
+	) {
+		super(connector);
+		this.router = _controller.router;
+		for (let [Request, handler] of this._controller._registeredRequests) { this.handle(Request, handler); }
+		for (let [Request, handler] of this._controller._fallbackedRequests) { this.fallbackRequest(Request, handler); }
+		for (let [Event, handler] of this._controller._registeredEvents) { this.handle(Event, handler); }
+		for (let [Event, handler] of this._controller._snoopedEvents) { this.snoopEvent(Event, handler); }
+
+		this.handle(lib.ModPackGetRequest, this.handleModPackGetRequest.bind(this));
+		this.handle(lib.ModPackGetDefaultRequest, this.handleModPackGetDefaultRequest.bind(this));
+		this.handle(lib.ModDownloadRequest, this.handleModDownloadRequest.bind(this));
+
+		this.handle(lib.SubscriptionRequest, this.handleSubscriptionRequest.bind(this));
+		this.connector.on("close", () => {
+			this._controller.subscriptions.unsubscribeLink(this);
+		});
+	}
+
+	async disconnect(code: number, reason: string) {
+		try {
+			await this.connector.disconnect(code, reason);
+		} catch (err: any) {
+			if (!(err instanceof lib.SessionLost)) {
+				logger.error(`"Unexpected error preparing disconnect:\n${err.stack}`);
+			}
+		}
+	}
+
+	/**
+	 * True if the link is connected, not in the dropped state and not in
+	 * the process of disconnecting.
+	 */
+	get connected(): boolean {
+		return this.connector.connected;
+	}
+
+	async handleModPackGetRequest(request: lib.ModPackGetRequest): Promise<lib.ModPack> {
+		let { id } = request;
+		let modPack = this._controller.modPacks.get(id);
+		if (!modPack) {
+			throw new lib.RequestError(`Mod pack with ID ${id} does not exist`);
+		}
+		return modPack;
+	}
+
+	async handleModPackGetDefaultRequest(): Promise<lib.ModPack> {
+		let id = this._controller.config.get("controller.default_mod_pack_id");
+		if (id === null) {
+			throw new lib.RequestError("Default mod pack not set on controller");
+		}
+		let modPack = this._controller.modPacks.get(id);
+		if (!modPack) {
+			throw new lib.RequestError(`Default mod pack configured (${id}) does not exist`);
+		}
+		return modPack;
+	}
+
+	getMod(mod: { name: string, version: string, sha1?: string }) {
+		let filename = lib.ModInfo.filename(mod.name, mod.version);
+		let modInfo = this._controller.modStore.files.get(filename);
+		if (!modInfo) {
+			throw new lib.RequestError(`Mod ${filename} does not exist on controller`);
+		}
+		if (mod.sha1 && mod.sha1 !== modInfo.sha1) {
+			throw new lib.RequestError(`Mod ${filename} checksum does not match controller's checksum`);
+		}
+		return modInfo;
+	}
+
+	async handleModDownloadRequest(request: lib.ModDownloadRequest) {
+		let mod = this.getMod(request);
+		let modPath = path.join(this._controller.config.get("controller.mods_directory"), mod.filename);
+
+		let stream = await routes.createProxyStream(this._controller.app);
+		stream.filename = mod.filename;
+		stream.source = fs.createReadStream(modPath);
+		stream.mime = "application/zip";
+		stream.size = String(mod.size);
+
+		return stream.id;
+	}
+
+	async handleSubscriptionRequest(request: lib.SubscriptionRequest, src: lib.Address, dst: lib.Address) {
+		return await this._controller.subscriptions.handleRequest(this, request, src, dst);
+	}
+}
@@ -0,0 +1,285 @@
+import type {
+	CollectorResult, Event, InstanceStatus, Logger,
+	ModPack, ModInfo, PlayerEvent, PluginNodeEnvInfo,
+} from "@clusterio/lib";
+import type Controller from "./Controller";
+import type InstanceInfo from "./InstanceInfo";
+import type ControlConnection from "./ControlConnection";
+import type HostConnection from "./HostConnection";
+
+/**
+ * Base class for controller plugins
+ *
+ * Controller plugins are subclasses of this class which get instantiated by
+ * the controller on startup when the plugin is enabled in the config.
+ * To be discovered the class must be exported under the name `ControllerPlugin`
+ * in the module specified by the `controllerEntrypoint` in the plugin's
+ * `plugin` export.
+ */
+export default class BaseControllerPlugin {
+	/**
+	 * Logger for this plugin
+	 *
+	 * Instance of winston Logger for sending log messages from this
+	 * plugin.  Supported methods and their corresponding log levels are
+	 * `error`, `warn`, `audit`, `info` and `verbose`.
+	 */
+	logger: Logger;
+
+	constructor(
+		public info: PluginNodeEnvInfo,
+		public controller: Controller,
+		public metrics: any,
+		logger: Logger
+	) {
+		this.logger = logger.child({ plugin: this.info.name }) as unknown as Logger;
+	}
+
+	/**
+	 * Called immediately after the class is instantiated
+	 */
+	async init() { }
+
+	/**
+	 * Called when the controller saves data in memory to disk
+	 *
+	 * Invoked on the configured controller.autosave_interval by the
+	 * controller and intended to be used to flush any in memory data that
+	 * has changed to disk.
+	 *
+	 * This will also be called during graceful shutdown after {@link
+	 * BaseControllerPlugin.onShutdown} have been invoked and all links have
+	 * been disconnected.
+	 */
+	async onSaveData() { }
+
+	/**
+	 * Called when the status of an instance changes
+	 *
+	 * Invoked when the controller has changed the status of an instance
+	 * or received notice from a host that the status of an instance has
+	 * changed.  The possible statuses that can be notified about are:
+	 * - `unassigned:`: Instance is no longer asssigned to a host.
+	 * - `unknown`: Host assigned to instance is offline.
+	 * - `stopped`: Instance is no longer running or was just assigned to a
+	 *   host.
+	 * - `starting`: Instance is in the process of starting up.
+	 * - `running`: Instance startup completed and is now running.
+	 * - `stopping`: Instance is in the processing stopping.
+	 * - `creating_save`: Instance is in the process of creating a save.
+	 * - `exporting_data`: Instance is in the process of exporting item
+	 *   icons and locale data.
+	 * - `deleted`: Instance was deleted.
+	 *
+	 * On controller startup all known instances gets the status `unknown` if
+	 * they are assigned to a host, when the host then connects to the
+	 * controller and informs of the current status of its instances this hook
+	 * is invoked for all those instances.  You can detect this situation by
+	 * checking if prev equals `unknown`.  If the host disconnects the
+	 * instances will again get the `unknown` status.
+	 *
+	 * When instances are created on the controller they will notify of a status
+	 * change with prev set to null.  While the status of new instances is
+	 * in most cases `unassigned` it's possible for the created instance to
+	 * start with any state in some host connection corner cases.
+	 *
+	 * Note that it's possible for status change notification to get lost in
+	 * the case of network outages if reconnect fails to re-establish the
+	 * session between the controller and the host.
+	 *
+	 * @param instance -
+	 *     The instance that changed.
+	 * @param prev - the previous status of the instance.
+	 */
+	async onInstanceStatusChanged(instance: InstanceInfo, prev?: InstanceStatus) { }
+
+	/**
+	 * Called when the value of a controller config field changed.
+	 *
+	 * Invoked after the value of the config field given by `field` has
+	 * changed on the controller.
+	 *
+	 * @param field - Name of the field that changed.
+	 * @param curr - The current value of the field.
+	 * @param prev - The previous value of the field.
+	 */
+	async onControllerConfigFieldChanged(field: string, curr: unknown, prev: unknown) { }
+
+	/**
+	 * Called when the value of an instance config field changed.
+	 *
+	 * Invoked after the value of the config field given by `field` has
+	 * changed on an instance.
+	 *
+	 * @param instance -
+	 *     The instance the config changed on.
+	 * @param field - Name of the field that changed.
+	 * @param curr - The current value of the field.
+	 * @param prev - The previous value of the field.
+	 */
+	async onInstanceConfigFieldChanged(instance: InstanceInfo, field: string, curr: unknown, prev: unknown) { }
+
+	/**
+	 * Called before collecting Prometheus metrics
+	 *
+	 * Invoked before the default metrics of prometheus is collected.  Note
+	 * that since this is done while replying to /metrics this should not
+	 * take a long time, otherwise the requst will time out.
+	 *
+	 * Although you can return the results of collecting your prometheus
+	 * collectors directly, all gauges in the default registry is already
+	 * automatically collected.  It's therefore recommended to only update
+	 * the Gauges/Counters/etc in onMetric and let Clusterio deal will
+	 * collecting the values.
+	 *
+	 * @returns an async iterator of prometheus metric results or undefined.
+	 */
+	async onMetrics(): Promise<void | AsyncIterable<CollectorResult>> { }
+
+	/**
+	 * Called when the controller is shutting down
+	 */
+	async onShutdown() { }
+
+	/**
+	 * Called when an event on a host connection happens
+	 *
+	 * The event param may be one of connect, drop, resume and close and has
+	 * the following meaning:
+	 *
+	 * ##### connect
+	 *
+	 * Invoked when a new connection to the host has been established.
+	 *
+	 * ##### drop
+	 *
+	 * Invoked when a connection loss is detected between the controller and a
+	 * host.  Plugins should respond to this event by throtteling messages
+	 * it is sending to the given host connection to an absolute minimum.
+	 *
+	 * Messages sent over a dropped host connection will get queued up in
+	 * memory on the controller and sent all in one go when the connection is
+	 * re-established again.
+	 *
+	 * ##### resume
+	 *
+	 * Invoked when a connection that had previously been dropped is
+	 * re-established
+	 *
+	 * ##### close
+	 *
+	 * Invoked when the connection to the host has been closed.
+	 *
+	 * @param connection -
+	 *     The connection the event occured on.
+	 * @param event - one of connect, drop, resume and close
+	 */
+	onHostConnectionEvent(connection: HostConnection, event: "connect" | "drop" | "resume" | "close") { }
+
+	/**
+	 * Called when an avent on a control connection happens
+	 *
+	 * The event param may be one of connect, drop, resume and close and has
+	 * the following meaning:
+	 *
+	 * ##### connect
+	 *
+	 * Invoked when a new connection to the control has been established.
+	 *
+	 * ##### drop
+	 *
+	 * Invoked when a connection loss is detected between the controller and a
+	 * control.  Plugins should respond to this event by throtteling
+	 * messages it is sending to the given control connection to an absolute
+	 * minimum.
+	 *
+	 * Messages sent over a dropped control connection will get queued up in
+	 * memory on the controller and sent all in one go when the connection is
+	 * re-established again.
+	 *
+	 * ##### resume
+	 *
+	 * Invoked when a connection that had previously been dropped is
+	 * re-established.
+	 *
+	 * ##### close
+	 *
+	 * Invoked when the connection to the control has been closed.
+	 *
+	 * @param connection -
+	 *     The connection the event occured on.
+	 * @param event - one of connect, drop, resume, and close.
+	 */
+	onControlConnectionEvent(connection: ControlConnection, event: "connect" | "drop" | "resume" | "close") { }
+
+	/**
+	 * Called when a host is preparing to disconnect from the controller
+	 *
+	 * Invoked when a host has requested the disconnection from the controller.
+	 * This typically happens when it is in the process of shutting down.
+	 *
+	 * Plugins must stop sending messages to the host in question after the
+	 * prepare disconnect has been handled.
+	 *
+	 * @param connection -
+	 *     The connection to the host preparing to disconnect.
+	 */
+	async onPrepareHostDisconnect(connection: HostConnection) { }
+
+	/**
+	 * Called when one or more mod packs are updated
+	 *
+	 * Invoked when one or more mod pack have been added, updated or deleted
+	 * in the cluster.
+	 *
+	 * If a mod pack has been deleted its `.isDeleted` property will be
+	 * true.
+	 *
+	 * @param modPacks - Mod packs that updated.
+	 */
+	async onModPacksUpdated(modPacks: ModPack[]) { }
+
+	/**
+	 * Called when one or more mod stored on the controller are updated
+	 *
+	 * Invoked when one or more mods have been added, updated or deleted
+	 * from the pool of shared mods stored on the cluster.
+	 *
+	 * If a mod has been deleted its `.isDeleted` property will be true.
+	 *
+	 * @param mods - Mods that updated.
+	 */
+	async onModsUpdated(mods: ModInfo[]) { }
+
+	/**
+	 * Called when a player joins or leaves an instance
+	 *
+	 * Invoked when a player either joins or leaves an instance in the
+	 * cluster.
+	 *
+	 * @param instance -
+	 *     The instance it occured on.
+	 * @param event - Information about the event.
+	 */
+	async onPlayerEvent(instance: InstanceInfo, event: PlayerEvent) { }
+
+	/**
+	 * Broadcast event to all connected hosts
+	 *
+	 * Sends the given event to all hosts connected to the controller.
+	 * This does not include hosts that are in the process of closing the
+	 * connection, which typically happens when they are shutting down.
+	 *
+	 * @param event - Event to send
+	 */
+	broadcastEventToHosts<T>(event: Event<T>) {
+		for (let hostConnection of this.controller.wsServer.hostConnections.values()) {
+			if (
+				!hostConnection.connector.closing
+				&& (!event.constructor.plugin || hostConnection.plugins.has(event.constructor.plugin))
+			) {
+				hostConnection.send(event);
+			}
+		}
+	}
+}
@@ -0,0 +1,766 @@
+import type WsServerConnector from "./WsServerConnector";
+
+import events from "events";
+
+import * as lib from "@clusterio/lib";
+const { logFilter, logger } = lib;
+
+import BaseConnection from "./BaseConnection";
+import ControllerUser from "./ControllerUser";
+import * as routes from "./routes";
+import Controller from "./Controller";
+
+const strcmp = new Intl.Collator(undefined, { numeric: true, sensitivity: "base" }).compare;
+
+const queryLogTime = new lib.Summary(
+	"clusterio_controller_query_log_duration_seconds",
+	"Time in seconds log queries took to execute."
+);
+
+/**
+ * Represents the connection to a control link
+ *
+ * @extends module:controller/src/BaseConnection
+ * @alias module:controller/src/ControlConnection
+ */
+export default class ControlConnection extends BaseConnection {
+	private _version: string;
+	logTransport: lib.LinkTransport | null = null;
+	logSubscriptions = {
+		all: false,
+		controller: false,
+		hostIds: [] as number[],
+		instanceIds: [] as number[],
+	};
+
+	ws_dumper: ((...args: any[]) => void) | null = null;
+	declare connector: WsServerConnector;
+
+	constructor(
+		registerData: { version: string },
+		connector: WsServerConnector,
+		controller: Controller,
+		public user: ControllerUser, // The user making this connection.
+		public id: number
+	) {
+		super(connector, controller);
+
+		this._version = registerData.version;
+
+		this.connector.on("connect", () => {
+			this.connector._socket!.clusterio_ignore_dump = Boolean(this.ws_dumper);
+		});
+		this.connector.on("close", () => {
+			if (this.logTransport) {
+				logger.remove(this.logTransport);
+				this.logTransport = null;
+			}
+			if (this.ws_dumper) {
+				this._controller.debugEvents.off("message", this.ws_dumper);
+			}
+		});
+
+		for (let event of ["connect", "drop", "resume", "close"] as const) {
+			this.connector.on(event, () => {
+				for (let controllerPlugin of this._controller.plugins.values()) {
+					controllerPlugin.onControlConnectionEvent(this, event);
+				}
+			});
+		}
+
+		this.handle(lib.ControllerStopRequest, this.handleControllerStopRequest.bind(this));
+		this.handle(lib.ControllerRestartRequest, this.handleControllerRestartRequest.bind(this));
+		this.handle(lib.ControllerConfigGetRequest, this.handleControllerConfigGetRequest.bind(this));
+		this.handle(lib.ControllerConfigSetFieldRequest, this.handleControllerConfigSetFieldRequest.bind(this));
+		this.handle(lib.ControllerConfigSetPropRequest, this.handleControllerConfigSetPropRequest.bind(this));
+		this.handle(lib.HostRevokeTokensRequest, this.handleHostRevokeTokensRequest.bind(this));
+		this.handle(lib.HostListRequest, this.handleHostListRequest.bind(this));
+		this.handle(lib.HostGenerateTokenRequest, this.handleHostGenerateTokenRequest.bind(this));
+		this.handle(lib.HostConfigCreateRequest, this.handleHostConfigCreateRequest.bind(this));
+		this.handle(lib.InstanceDetailsGetRequest, this.handleInstanceDetailsGetRequest.bind(this));
+		this.handle(lib.InstanceDetailsListRequest, this.handleInstanceDetailsListRequest.bind(this));
+		this.handle(lib.InstanceCreateRequest, this.handleInstanceCreateRequest.bind(this));
+		this.handle(lib.InstanceDeleteRequest, this.handleInstanceDeleteRequest.bind(this));
+		this.handle(lib.InstanceConfigGetRequest, this.handleInstanceConfigGetRequest.bind(this));
+		this.handle(lib.InstanceConfigSetFieldRequest, this.handleInstanceConfigSetFieldRequest.bind(this));
+		this.handle(lib.InstanceConfigSetPropRequest, this.handleInstanceConfigSetPropRequest.bind(this));
+		this.handle(lib.InstanceAssignRequest, this.handleInstanceAssignRequest.bind(this));
+		this.handle(lib.InstanceSaveDetailsListRequest, this.handleInstanceSaveDetailsListRequest.bind(this));
+		this.handle(lib.InstanceRenameSaveRequest, controller.sendRequestToHostByInstanceId.bind(controller));
+		this.handle(lib.InstanceCopySaveRequest, controller.sendRequestToHostByInstanceId.bind(controller));
+		this.handle(lib.InstanceDeleteSaveRequest, controller.sendRequestToHostByInstanceId.bind(controller));
+		this.handle(lib.InstanceDownloadSaveRequest, this.handleInstanceDownloadSaveRequest.bind(this));
+		this.handle(lib.InstanceTransferSaveRequest, this.handleInstanceTransferSaveRequest.bind(this));
+		this.handle(lib.ModPackListRequest, this.handleModPackListRequest.bind(this));
+		this.handle(lib.ModPackCreateRequest, this.handleModPackCreateRequest.bind(this));
+		this.handle(lib.ModPackUpdateRequest, this.handleModPackUpdateRequest.bind(this));
+		this.handle(lib.ModPackDeleteRequest, this.handleModPackDeleteRequest.bind(this));
+		this.handle(lib.ModGetRequest, this.handleModGetRequest.bind(this));
+		this.handle(lib.ModListRequest, this.handleModListRequest.bind(this));
+		this.handle(lib.ModSearchRequest, this.handleModSearchRequest.bind(this));
+		this.handle(lib.ModDeleteRequest, this.handleModDeleteRequest.bind(this));
+		this.handle(lib.LogSetSubscriptionsRequest, this.handleLogSetSubscriptionsRequest.bind(this));
+		this.handle(lib.LogQueryRequest, this.handleLogQueryRequest.bind(this));
+		this.handle(lib.PermissionListRequest, this.handlePermissionListRequest.bind(this));
+		this.handle(lib.RoleListRequest, this.handleRoleListRequest.bind(this));
+		this.handle(lib.RoleCreateRequest, this.handleRoleCreateRequest.bind(this));
+		this.handle(lib.RoleUpdateRequest, this.handleRoleUpdateRequest.bind(this));
+		this.handle(lib.RoleGrantDefaultPermissionsRequest, this.handleRoleGrantDefaultPermissionsRequest.bind(this));
+		this.handle(lib.RoleDeleteRequest, this.handleRoleDeleteRequest.bind(this));
+		this.handle(lib.UserGetRequest, this.handleUserGetRequest.bind(this));
+		this.handle(lib.UserListRequest, this.handleUserListRequest.bind(this));
+		this.handle(lib.UserCreateRequest, this.handleUserCreateRequest.bind(this));
+		this.handle(lib.UserRevokeTokenRequest, this.handleUserRevokeTokenRequest.bind(this));
+		this.handle(lib.UserUpdateRolesRequest, this.handleUserUpdateRolesRequest.bind(this));
+		this.handle(lib.UserSetAdminRequest, this.handleUserSetAdminRequest.bind(this));
+		this.handle(lib.UserSetBannedRequest, this.handleUserSetBannedRequest.bind(this));
+		this.handle(lib.UserSetWhitelistedRequest, this.handleUserSetWhitelistedRequest.bind(this));
+		this.handle(lib.UserDeleteRequest, this.handleUserDeleteRequest.bind(this));
+		this.handle(lib.DebugDumpWsRequest, this.handleDebugDumpWsRequest.bind(this));
+	}
+
+	validateIngress(message: lib.MessageRequest | lib.MessageEvent) {
+		let origin = this.connector.dst;
+		if (origin.type !== message.src.type || origin.id !== message.src.id) {
+			throw new lib.InvalidMessage(`Received message with invalid src ${message.src} from ${origin}`);
+		}
+	}
+
+	validatePermission(
+		message: lib.MessageRequest | lib.MessageEvent,
+		entry: lib.RequestEntry | lib.EventEntry
+	) {
+		try {
+			this.checkPermission(message, entry);
+		} catch (err: any) {
+			this.connector.sendResponseError(new lib.ResponseError(err.message, err.code), message.src);
+			logger.audit(`Permission denied for ${message.name} by ${this.user.id} from ${this.connector.dst}`);
+			throw err;
+		}
+	}
+
+	checkPermission(
+		message: lib.MessageRequest | lib.MessageEvent,
+		entry: lib.RequestEntry | lib.EventEntry
+	) {
+		let permission;
+		if (message.type === "request") {
+			permission = (entry as lib.RequestEntry).Request.permission;
+		} else if (message.type === "event") {
+			permission = (entry as lib.EventEntry).Event.permission;
+		} else {
+			return;
+		}
+
+		if (permission === null) {
+			return;
+		}
+
+		if (typeof permission === "string") {
+			this.user.checkPermission(permission);
+			return;
+		}
+
+		if (typeof permission === "function") {
+			permission(this.user, message);
+			return;
+		}
+
+		throw new Error("Should be unreachable");
+	}
+
+	async handleControllerStopRequest() {
+		this._controller.stop();
+	}
+
+	async handleControllerRestartRequest() {
+		if (!this._controller.canRestart) {
+			throw new lib.RequestError("Cannot restart, controller does not have a process monitor to restart it.");
+		}
+		this._controller.shouldRestart = true;
+		this._controller.stop();
+	}
+
+	async handleControllerConfigGetRequest() {
+		return this._controller.config.toRemote("control");
+	}
+
+	async handleControllerConfigSetFieldRequest(request: lib.ControllerConfigSetFieldRequest) {
+		this._controller.config.set(request.field as keyof lib.ControllerConfigFields, request.value, "control");
+	}
+
+	async handleControllerConfigSetPropRequest(request: lib.ControllerConfigSetPropRequest) {
+		let { field, prop, value } = request;
+		this._controller.config.setProp(field as keyof lib.ControllerConfigFields, prop, value, "control");
+	}
+
+	async handleHostRevokeTokensRequest(request: lib.HostRevokeTokensRequest) {
+		const host = this._controller.hosts.getMutable(request.hostId);
+		if (!host) {
+			throw new Error(`Unknown host id (${request.hostId})`);
+		}
+
+		host.tokenValidAfter = Math.floor(Date.now() / 1000);
+
+		const hostConnection = this._controller.wsServer.hostConnections.get(request.hostId);
+		if (hostConnection) {
+			hostConnection.connector.terminate();
+		}
+
+		this._controller.hosts.set(host);
+	}
+
+	async handleHostListRequest(): Promise<lib.HostDetails[]> {
+		return [...this._controller.hosts.values()].map(host => host.toHostDetails());
+	}
+
+	async handleHostGenerateTokenRequest(message: lib.HostGenerateTokenRequest) {
+		let hostId = message.hostId;
+		if (hostId === undefined) {
+			hostId = Math.random() * 2**31 | 0;
+		}
+		return this._controller.generateHostToken(hostId);
+	}
+
+	async handleHostConfigCreateRequest(request: lib.HostConfigCreateRequest) {
+		const hostConfig = new lib.HostConfig("host");
+
+		hostConfig.set("host.controller_url", this._controller.getControllerUrl());
+		if (request.id !== undefined) {
+			hostConfig.set("host.id", request.id);
+		}
+		if (request.name !== undefined) {
+			hostConfig.set("host.name", request.name);
+		}
+		if (request.generateToken) {
+			this.user.checkPermission("core.host.generate_token");
+			hostConfig.set("host.controller_token", this._controller.generateHostToken(hostConfig.get("host.id")));
+		}
+		return hostConfig.toJSON();
+	}
+
+	async handleInstanceDetailsGetRequest(request: lib.InstanceDetailsGetRequest) {
+		return this._controller.getRequestInstance(request.instanceId).toInstanceDetails();
+	}
+
+	async handleInstanceDetailsListRequest() {
+		return [...this._controller.instances.values()].map(instance => instance.toInstanceDetails());
+	}
+
+	async handleInstanceCreateRequest(request: lib.InstanceCreateRequest) {
+		const instanceConfig = new lib.InstanceConfig("controller");
+		instanceConfig.update(request.config, false, "control");
+		await this._controller.instanceCreate(instanceConfig);
+	}
+
+	async handleInstanceDeleteRequest(request: lib.InstanceDeleteRequest) {
+		await this._controller.instanceDelete(request.instanceId);
+	}
+
+	async handleInstanceConfigGetRequest(request: lib.InstanceConfigGetRequest) {
+		let instance = this._controller.getRequestInstance(request.instanceId);
+		return instance.config.toRemote("control");
+	}
+
+	async handleInstanceConfigSetFieldRequest(request: lib.InstanceConfigSetFieldRequest) {
+		let instance = this._controller.getRequestInstance(request.instanceId);
+		if (request.field === "instance.assigned_host") {
+			throw new lib.RequestError("instance.assigned_host must be set through the assign-host interface");
+		}
+
+		if (request.field === "instance.id") {
+			// XXX is this worth implementing?  It's race condition galore.
+			throw new lib.RequestError("Setting instance.id is not supported");
+		}
+
+		instance.config.set(request.field as keyof lib.InstanceConfigFields, request.value, "control");
+		await this._controller.instanceConfigUpdated(instance);
+	}
+
+	async handleInstanceConfigSetPropRequest(request: lib.InstanceConfigSetPropRequest) {
+		let instance = this._controller.getRequestInstance(request.instanceId);
+		let { field, prop, value } = request;
+		instance.config.setProp(field as keyof lib.InstanceConfigFields, prop, value, "control");
+		await this._controller.instanceConfigUpdated(instance);
+	}
+
+	async handleInstanceAssignRequest(request: lib.InstanceAssignRequest) {
+		await this._controller.instanceAssign(request.instanceId, request.hostId);
+	}
+
+	async handleInstanceSaveDetailsListRequest() {
+		return [...this._controller.saves.values()];
+	}
+
+	async handleInstanceDownloadSaveRequest(request: lib.InstanceDownloadSaveRequest) {
+		let { instanceId, name } = request;
+		let stream = await routes.createProxyStream(this._controller.app);
+		stream.filename = name;
+
+		let ready = new Promise((resolve, reject) => {
+			stream.events.on("source", resolve);
+			stream.events.on("timeout", () => reject(
+				new lib.RequestError("Timed out establishing stream from host")
+			));
+		});
+		ready.catch(() => {});
+
+		await this._controller.sendToHostByInstanceId(new lib.InstancePushSaveRequest(
+			instanceId,
+			stream.id,
+			name,
+		));
+
+		await ready;
+		return stream.id;
+	}
+
+	async handleInstanceTransferSaveRequest(request: lib.InstanceTransferSaveRequest) {
+		if (request.sourceInstanceId === request.targetInstanceId) {
+			throw new lib.RequestError("Source and target instance may not be the same");
+		}
+		let sourceInstance = this._controller.getRequestInstance(request.sourceInstanceId);
+		let targetInstance = this._controller.getRequestInstance(request.targetInstanceId);
+		let sourceHostId = sourceInstance.config.get("instance.assigned_host");
+		let targetHostId = targetInstance.config.get("instance.assigned_host");
+		if (sourceHostId === null) {
+			throw new lib.RequestError("Source instance is not assigned a host");
+		}
+		if (targetHostId === null) {
+			throw new lib.RequestError("Target instance is not assigned a host");
+		}
+
+		// Let host handle request if source and target is on the same host.
+		if (sourceHostId === targetHostId) {
+			return await this._controller.sendTo({ hostId: sourceHostId }, request);
+		}
+
+		// Check connectivity
+		let sourceHostConnection = this._controller.wsServer.hostConnections.get(sourceHostId);
+		if (!sourceHostConnection || sourceHostConnection.connector.closing) {
+			throw new lib.RequestError("Source host is not connected to the controller");
+		}
+
+		let targetHostConnection = this._controller.wsServer.hostConnections.get(targetHostId);
+		if (!targetHostConnection || targetHostConnection.connector.closing) {
+			throw new lib.RequestError("Target host is not connected to the controller");
+		}
+
+		// Create stream to proxy from target to source
+		let stream = await routes.createProxyStream(this._controller.app);
+		stream.events.on("timeout", () => {
+			if (stream.source) {
+				stream.source.destroy();
+			}
+			stream.events.emit("error", new lib.RequestError("Timed out establishing transfer stream"));
+		});
+
+		// Ignore errors if not listening for them to avoid crash.
+		stream.events.on("error", () => { /* ignore */ });
+
+		// Establish push from source host to stream, this is done first to
+		// ensure the file size is known prior to the target host pull.
+		await Promise.all([
+			this._controller.sendTo(
+				{ hostId: sourceHostId },
+				new lib.InstancePushSaveRequest(request.sourceInstanceId, stream.id, request.sourceName),
+			),
+			events.once(stream.events, "source"),
+		]);
+
+		// Establish pull from target host to stream and wait for completion.
+		let storedName = await this._controller.sendTo(
+			{ hostId: targetHostId },
+			new lib.InstancePullSaveRequest(request.targetInstanceId, stream.id, request.targetName),
+		);
+
+		// Delete source save if this is not a copy
+		if (!request.copy) {
+			await this._controller.sendTo(
+				{ hostId: sourceHostId },
+				new lib.InstanceDeleteSaveRequest(request.sourceInstanceId, request.sourceName),
+			);
+		}
+
+		return storedName;
+	}
+
+	async handleModPackListRequest() {
+		return [...this._controller.modPacks.values()];
+	}
+
+	async handleModPackCreateRequest(request: lib.ModPackCreateRequest) {
+		let modPack = request.modPack;
+		if (modPack.id === undefined) {
+			throw new lib.RequestError("Mod pack need an ID to be created");
+		}
+		if (this._controller.modPacks.has(modPack.id)) {
+			throw new lib.RequestError(`Mod pack with ID ${modPack.id} already exist`);
+		}
+		this._controller.modPacks.set(modPack);
+	}
+
+	async handleModPackUpdateRequest(request: lib.ModPackUpdateRequest) {
+		let modPack = request.modPack;
+		if (modPack.id === undefined || !this._controller.modPacks.has(modPack.id)) {
+			throw new lib.RequestError(`Mod pack with ID ${modPack.id} does not exist`);
+		}
+		this._controller.modPacks.set(modPack);
+	}
+
+	async handleModPackDeleteRequest(request: lib.ModPackDeleteRequest) {
+		let { id } = request;
+		let modPack = this._controller.modPacks.getMutable(id);
+		if (!modPack) {
+			throw new lib.RequestError(`Mod pack with ID ${id} does not exist`);
+		}
+		this._controller.modPacks.delete(modPack);
+	}
+
+	async handleModGetRequest(request: lib.ModGetRequest) {
+		return this.getMod(request);
+	}
+
+	async handleModListRequest() {
+		return [...this._controller.modStore.mods()];
+	}
+
+	static termsMatchesMod(terms: lib.ParsedTerm[], mod: lib.ModInfo) {
+		for (let term of terms) {
+			if (term.type === "word") {
+				if (!lib.wordMatches(term,
+					mod.name, mod.version, mod.title, mod.author, mod.contact,
+					mod.homepage, mod.description, mod.filename
+				)) {
+					return false;
+				}
+			} else if (term.type === "attribute") {
+				if (!lib.wordMatches(term.value, mod[term.name as keyof lib.ModInfo] as string)) {
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+	async handleModSearchRequest(request: lib.ModSearchRequest) {
+		let query = lib.parseSearchString(request.query, {
+			name: "word",
+			// version
+			title: "word",
+			author: "word",
+			contact: "word",
+			homepage: "word",
+			description: "word",
+			// factorioVersion
+			// dependencies
+			filename: "word",
+			// size
+			sha1: "word",
+		});
+		let factorioVersion = request.factorioVersion;
+
+		type ModVersions = { name: string, versions: lib.ModInfo[] };
+		let results: Map<string, ModVersions> = new Map();
+		for (let mod of this._controller.modStore.mods()) {
+			if (
+				mod.factorioVersion !== factorioVersion
+				|| !ControlConnection.termsMatchesMod(query.terms, mod)
+			) {
+				continue;
+			}
+			let result = results.get(mod.name);
+			if (!result) {
+				result = {
+					name: mod.name,
+					versions: [],
+				};
+				results.set(mod.name, result);
+			}
+			result.versions.push(mod);
+		}
+		for (let result of results.values()) {
+			result.versions.sort((a, b) => b.integerVersion - a.integerVersion);
+			result.versions.map(e => e.toJSON());
+		}
+		let resultList = [...results.values()];
+
+		const sort = request.sort;
+		if (sort) {
+			const sorters = {
+				name: (a:ModVersions, b:ModVersions) => strcmp(a.versions[0].name, b.versions[0].name),
+				title: (a:ModVersions, b:ModVersions) => strcmp(a.versions[0].title, b.versions[0].title),
+				author: (a:ModVersions, b:ModVersions) => strcmp(a.versions[0].author, b.versions[0].author),
+			};
+			if (!Object.prototype.hasOwnProperty.call(sorters, sort)) {
+				throw new lib.RequestError(`Invalid value for sort: ${sort}`);
+			}
+			resultList.sort(sorters[sort as keyof typeof sorters]);
+			let order = request.sortOrder;
+			if (order === "desc") {
+				resultList.reverse();
+			}
+		}
+
+		const page = request.page;
+		const pageSize = request.pageSize || 10;
+		resultList = resultList.slice((page - 1) * pageSize, page * pageSize);
+
+		return {
+			queryIssues: query.issues,
+			pageCount: Math.ceil(results.size / pageSize),
+			resultCount: results.size,
+			results: resultList,
+		};
+	}
+
+	async handleModDeleteRequest(request: lib.ModDeleteRequest) {
+		await this._controller.modStore.deleteMod(request.name, request.version);
+	}
+
+	async handleLogSetSubscriptionsRequest(request: lib.LogSetSubscriptionsRequest) {
+		this.logSubscriptions = {
+			all: request.all || false,
+			controller: request.controller || false,
+			hostIds: request.hostIds || [],
+			instanceIds: request.instanceIds || [],
+		};
+		this.updateLogSubscriptions();
+	}
+
+	updateLogSubscriptions() {
+		let { all, controller, hostIds, instanceIds } = this.logSubscriptions;
+		if (all || controller || hostIds.length || instanceIds.length) {
+			if (!this.logTransport) {
+				this.logTransport = new lib.LinkTransport({ link: this });
+				this._controller.clusterLogger.add(this.logTransport);
+			}
+			this.logTransport.filter = logFilter(this.logSubscriptions);
+
+		} else if (this.logTransport) {
+			this._controller.clusterLogger.remove(this.logTransport);
+			this.logTransport = null;
+		}
+	}
+
+	async handleLogQueryRequest(request: lib.LogQueryRequest) {
+		let _request = {
+			limit: request.limit,
+			order: request.order,
+			maxLevel: request.maxLevel,
+			all: request.all,
+			controller: request.controller,
+			hostIds: request.hostIds,
+			instanceIds: request.instanceIds,
+		};
+
+		let observeDuration = queryLogTime.startTimer();
+		let { all, controller, hostIds, instanceIds } = request;
+
+		let log;
+		if (!all && controller && !hostIds.length && !instanceIds.length) {
+			log = await this._controller.queryControllerLog(_request);
+		} else {
+			log = await this._controller.queryClusterLog(_request);
+		}
+
+		observeDuration();
+		return { log };
+	}
+
+	async handlePermissionListRequest() {
+		return [...lib.permissions.values()];
+	}
+
+	async handleRoleListRequest() {
+		return [...this._controller.userManager.roles.values()];
+	}
+
+	async handleRoleCreateRequest(request: lib.RoleCreateRequest) {
+		let lastId = Math.max.apply(null, [...this._controller.userManager.roles.keys()]);
+
+		// Start at 5 to leave space for future default roles
+		let id = Math.max(5, lastId+1);
+		this._controller.userManager.roles.set(id, lib.Role.fromJSON({ id, ...request }));
+		this._controller.userManager.dirty = true;
+		return id;
+	}
+
+	async handleRoleUpdateRequest(request: lib.RoleUpdateRequest) {
+		let { id, name, description, permissions } = request;
+		let role = this._controller.userManager.roles.get(id);
+		if (!role) {
+			throw new lib.RequestError(`Role with ID ${id} does not exist`);
+		}
+
+		role.name = name;
+		role.description = description;
+		role.permissions = new Set(permissions);
+		this._controller.rolePermissionsUpdated(role);
+	}
+
+	async handleRoleGrantDefaultPermissionsRequest(request: lib.RoleGrantDefaultPermissionsRequest) {
+		let role = this._controller.userManager.roles.get(request.id);
+		if (!role) {
+			throw new lib.RequestError(`Role with ID ${request.id} does not exist`);
+		}
+
+		role.grantDefaultPermissions();
+		this._controller.rolePermissionsUpdated(role);
+	}
+
+	async handleRoleDeleteRequest(request: lib.RoleDeleteRequest) {
+		let id = request.id;
+
+		if (!this._controller.userManager.roles.delete(id)) {
+			throw new lib.RequestError(`Role with ID ${id} does not exist`);
+		}
+		this._controller.userManager.dirty = true;
+
+		for (let user of this._controller.userManager.users.values()) {
+			if (user.roleIds.delete(id)) {
+				this._controller.userPermissionsUpdated(user);
+			}
+		}
+	}
+
+	async handleUserGetRequest(request: lib.UserGetRequest): Promise<lib.User> {
+		let name = request.name;
+		let user = this._controller.userManager.getByName(name);
+		if (!user) {
+			throw new lib.RequestError(`User ${name} does not exist`);
+		}
+
+		return user;
+	}
+
+	async handleUserListRequest(): Promise<lib.User[]> {
+		return [...this._controller.userManager.users.values()];
+	}
+
+	async handleUserCreateRequest(request: lib.UserCreateRequest) {
+		let user = this._controller.userManager.createUser(request.name);
+		this._controller.usersUpdated([user]);
+	}
+
+	async handleUserRevokeTokenRequest(request: lib.UserRevokeTokenRequest) {
+		let user = this._controller.userManager.getByName(request.name);
+		if (!user) {
+			throw new lib.RequestError(`User '${request.name}' does not exist`);
+		}
+		if (user.id !== this.user.id) {
+			this.user.checkPermission("core.user.revoke_other_token");
+		}
+
+		user.invalidateToken();
+		for (let controlConnection of this._controller.wsServer.controlConnections.values()) {
+			if (controlConnection.user.id === user.id) {
+				controlConnection.connector.terminate();
+			}
+		}
+		this._controller.usersUpdated([user]);
+	}
+
+	async handleUserUpdateRolesRequest(request: lib.UserUpdateRolesRequest) {
+		let user = this._controller.userManager.getByName(request.name);
+		if (!user) {
+			throw new lib.RequestError(`User '${request.name}' does not exist`);
+		}
+
+		for (let roleId of request.roles) {
+			if (!this._controller.userManager.roles.has(roleId)) {
+				throw new lib.RequestError(`Role with ID ${roleId} does not exist`);
+			}
+		}
+
+		user.roleIds = new Set(request.roles);
+		this._controller.userPermissionsUpdated(user);
+		this._controller.usersUpdated([user]);
+	}
+
+	async handleUserSetAdminRequest(request: lib.UserSetAdminRequest) {
+		let { name, create, admin } = request;
+		let user = this._controller.userManager.getByName(name);
+		if (!user) {
+			if (create) {
+				this.user.checkPermission("core.user.create");
+				user = this._controller.userManager.createUser(name);
+			} else {
+				throw new lib.RequestError(`User '${name}' does not exist`);
+			}
+		}
+
+		user.isAdmin = admin;
+		this._controller.usersUpdated([user]);
+		this._controller.sendTo("allInstances", new lib.InstanceAdminlistUpdateEvent(name, admin));
+	}
+
+	async handleUserSetBannedRequest(request: lib.UserSetBannedRequest) {
+		let { name, create, banned, reason } = request;
+		let user = this._controller.userManager.getByName(name);
+		if (!user) {
+			if (create) {
+				this.user.checkPermission("core.user.create");
+				user = this._controller.userManager.createUser(name);
+			} else {
+				throw new lib.RequestError(`User '${name}' does not exist`);
+			}
+		}
+
+		user.isBanned = banned;
+		user.banReason = reason;
+		this._controller.usersUpdated([user]);
+		this._controller.sendTo("allInstances", new lib.InstanceBanlistUpdateEvent(name, banned, reason));
+	}
+
+	async handleUserSetWhitelistedRequest(request: lib.UserSetWhitelistedRequest) {
+		let { name, create, whitelisted } = request;
+		let user = this._controller.userManager.getByName(name);
+		if (!user) {
+			if (create) {
+				this.user.checkPermission("core.user.create");
+				user = this._controller.userManager.createUser(name);
+			} else {
+				throw new lib.RequestError(`User '${name}' does not exist`);
+			}
+		}
+
+		user.isWhitelisted = whitelisted;
+		this._controller.usersUpdated([user]);
+		this._controller.sendTo("allInstances", new lib.InstanceWhitelistUpdateEvent(name, whitelisted));
+	}
+
+	async handleUserDeleteRequest(request: lib.UserDeleteRequest) {
+		let name = request.name;
+		let user = this._controller.userManager.getByName(name);
+		if (!user) {
+			throw new lib.RequestError(`User '${name}' does not exist`);
+		}
+
+		user.isDeleted = true;
+		this._controller.userManager.users.delete(name);
+		this._controller.usersUpdated([user]);
+
+		if (user.isAdmin) {
+			this._controller.sendTo("allInstances", new lib.InstanceAdminlistUpdateEvent(name, false));
+		}
+		if (user.isWhitelisted) {
+			this._controller.sendTo("allInstances", new lib.InstanceWhitelistUpdateEvent(name, false));
+		}
+		if (user.isBanned) {
+			this._controller.sendTo("allInstances", new lib.InstanceBanlistUpdateEvent(name, false, ""));
+		}
+	}
+
+	async handleDebugDumpWsRequest(request: lib.DebugDumpWsRequest) {
+		this.ws_dumper = data => {
+			if (this.connector.connected) {
+				this.send(new lib.DebugWsMessageEvent(data.direction, data.content));
+			}
+		};
+		this.connector._socket!.clusterio_ignore_dump = true;
+		this._controller.debugEvents.on("message", this.ws_dumper);
+	}
+}
+
+module.exports = ControlConnection;
@@ -0,0 +1,132 @@
+import type Controller from "./Controller";
+import type BaseConnection from "./BaseConnection";
+
+import * as lib from "@clusterio/lib";
+import HostConnection from "./HostConnection";
+import ControlConnection from "./ControlConnection";
+const { logger } = lib;
+
+export default class ControllerRouter {
+	constructor(
+		public controller: Controller
+	) {}
+
+	/**
+	 * @param origin - Source link of the message.
+	 * @param message - Link the message originated from.
+	 * @param entry - message entry if message is a request or an event.
+	 * @param hasFallback - true if fallback handling is available.
+	 * @returns true if the message was handled
+	 */
+	forwardMessage(
+		origin: ControlConnection | HostConnection,
+		message: lib.MessageRoutable,
+		entry: lib.RequestEntry | lib.EventEntry | undefined,
+		hasFallback: boolean
+	): boolean {
+		if (!["request", "response", "responseError", "event"].includes(message.type)) {
+			throw new Error(`Message type ${message.type} can't be forwarded`);
+		}
+
+		let dst: lib.Address = message.dst;
+		let nextHop: ControlConnection | HostConnection | undefined;
+		let msg: string = "";
+		if (dst.type === lib.Address.broadcast) {
+			this.broadcastMessage(origin, message, entry as lib.EventEntry);
+			return true;
+		} else if (dst.type === lib.Address.host) {
+			nextHop = this.controller.wsServer.hostConnections.get(dst.id);
+			if (!nextHop) {
+				msg = `Host ${dst.id} is offline`;
+			}
+		} else if (dst.type === lib.Address.instance) {
+			let instance = this.controller.instances.get(dst.id);
+			if (!instance) {
+				msg = `Instance ${dst.id} does not exist`;
+			} else {
+				let assignedHost = instance.config.get("instance.assigned_host");
+				if (assignedHost === null) {
+					msg = `Instance ${dst.id} is not assigned a host`;
+				} else {
+					nextHop = this.controller.wsServer.hostConnections.get(assignedHost);
+					if (!nextHop) {
+						msg = `Assigned host for instance ${dst.id} is offline`;
+					}
+				}
+			}
+		} else if (dst.type === lib.Address.control) {
+			nextHop = this.controller.wsServer.controlConnections.get(dst.id);
+			if (!nextHop) {
+				msg = "Control connection does not exist";
+			}
+		} else if (dst.type === lib.Address.controller) {
+			msg = `Unexpected message forwarded to ${dst}`;
+		}
+
+		if (nextHop === origin) {
+			msg = `Message would return back to sender ${origin.connector.dst}.`;
+			nextHop = undefined;
+		}
+
+		if (message.type === "request") {
+			if (!nextHop) {
+				if (hasFallback) {
+					return false;
+				}
+				origin.connector.sendResponseError(
+					new lib.ResponseError(msg || "Unroutable destination"), message.src
+				);
+				return true;
+			}
+		}
+
+		if (nextHop) {
+			if (message.type === "request") {
+				nextHop.forwardRequest(message as lib.MessageRequest, origin);
+			} else {
+				nextHop.connector.forward(message);
+			}
+		} else {
+			this.warnUnrouted(message, msg);
+		}
+
+		return true;
+	}
+
+	broadcastMessage(
+		origin: lib.Link,
+		message: lib.MessageRoutable,
+		entry: lib.EventEntry,
+	) {
+		let dst = message.dst;
+		if (message.type !== "event") {
+			this.warnUnrouted(message, `Unexpected broadcast of ${message.type}`);
+			return;
+		}
+		const plugin = entry.Event.plugin;
+		if (dst.id === lib.Address.host || dst.id === lib.Address.instance) {
+			for (let hostConnection of this.controller.wsServer.hostConnections.values()) {
+				if (hostConnection !== origin && (!plugin || hostConnection.plugins.has(plugin))) {
+					hostConnection.connector.forward(message);
+				}
+			}
+		} else if (dst.id === lib.Address.control) {
+			for (let controlConnection of this.controller.wsServer.controlConnections.values()) {
+				if (controlConnection !== origin) {
+					controlConnection.connector.forward(message);
+				}
+			}
+		} else {
+			this.warnUnrouted(message, `Unexpected broacdast target ${dst.id}`);
+		}
+	}
+
+	warnUnrouted(
+		message: lib.MessageRoutable,
+		msg: string
+	) {
+		let dst = message.dst;
+		let baseMsg = `No destination for ${message.constructor.name} routed from ${message.src} to ${dst}`;
+		logger.warn(msg ? `${baseMsg}: ${msg}.` : `${baseMsg}.`);
+	}
+}
@@ -0,0 +1,93 @@
+import { Static, Type } from "@sinclair/typebox";
+import { IControllerUser, PermissionError, PlayerStats, Role, User, permissions } from "@clusterio/lib";
+import type UserManager from "./UserManager";
+
+export default class ControllerUser extends User implements IControllerUser {
+	constructor(
+		public userManager: UserManager,
+		/** Unix time in seconds the user token must be issued after to be valid.  */
+		public tokenValidAfter = 0,
+		...args: ConstructorParameters<typeof User>
+	) {
+		super(...args);
+	}
+
+	static jsonSchema = Type.Object({
+		...User.jsonSchema.properties,
+		token_valid_after: Type.Optional(Type.Number()),
+	});
+
+	static fromJSON(json: Static<typeof this.jsonSchema>, userManager: UserManager) {
+		const roleIds = new Set<number>(json.roles ?? []);
+		const instanceStats = new Map(
+			(json.instance_stats ?? []).map(
+				([id, stats]) => [id, PlayerStats.fromJSON(stats)]
+			)
+		);
+		const playerStats = User._calculatePlayerStats(instanceStats);
+		return new this(
+			userManager,
+			json.token_valid_after,
+			json.name,
+			roleIds,
+			new Set(json.instances),
+			json.is_admin,
+			json.is_banned,
+			json.is_whitelisted,
+			json.ban_reason,
+			json.updated_at_ms,
+			json.is_deleted,
+			playerStats,
+			instanceStats,
+		);
+	}
+
+	toJSON(controller?: boolean): Static<typeof ControllerUser.jsonSchema> {
+		if (!controller) {
+			return super.toJSON();
+		}
+
+		const json: Static<typeof ControllerUser.jsonSchema> = super.toJSON();
+		if (this.tokenValidAfter) {
+			json.token_valid_after = this.tokenValidAfter;
+		}
+
+		return json;
+	}
+
+	get roles(): ReadonlySet<Readonly<Role>> {
+		return new Set([...this.roleIds].map(
+			id => this.userManager.roles.get(id)
+		).filter(
+			(r): r is Role => Boolean(r)
+		));
+	}
+
+	/**
+	 * Invalidate current tokens for the user
+	 *
+	 * Sets the tokenValidAfter property to the current time, which causes
+	 * all currently issued tokens for the user to become invalid.
+	 */
+	invalidateToken() {
+		this.tokenValidAfter = Math.floor(Date.now() / 1000);
+	}
+
+	checkPermission(permission: string) {
+		if (!permissions.has(permission)) {
+			throw new Error(`permission ${permission} does not exist`);
+		}
+
+		for (let roleId of this.roleIds) {
+			let role = this.userManager.roles.get(roleId);
+			if (!role) {
+				continue;
+			}
+			if (role.permissions.has("core.admin") || role.permissions.has(permission)) {
+				return;
+			}
+		}
+
+		throw new PermissionError("Permission denied");
+	}
+}
@@ -0,0 +1,418 @@
+import type Controller from "./Controller";
+import type WsServerConnector from "./WsServerConnector";
+
+import * as lib from "@clusterio/lib";
+const { logger } = lib;
+
+import BaseConnection from "./BaseConnection";
+import InstanceInfo from "./InstanceInfo";
+import HostInfo from "./HostInfo";
+
+
+/**
+ * Represents the connection to a host
+ *
+ * @extends module:controller/src/BaseConnection
+ * @alias module:controller/src/HostConnection
+ */
+export default class HostConnection extends BaseConnection {
+	private info: HostInfo;
+	plugins: Map<string, string>;
+
+	constructor(
+		registerData: lib.RegisterHostData,
+		connector: WsServerConnector,
+		controller: Controller,
+		remoteAddress: string,
+	) {
+		super(connector, controller);
+
+		this.plugins = new Map(Object.entries(registerData.plugins));
+
+		const previousHostInfo = this._controller.hosts.get(registerData.id);
+		this.info = new HostInfo(
+			registerData.id,
+			previousHostInfo?.name ?? "",
+			registerData.version,
+			this.plugins,
+			true,
+			remoteAddress,
+			previousHostInfo?.publicAddress,
+			previousHostInfo?.tokenValidAfter,
+			0,
+			false,
+		);
+		this._controller.hosts.set(this.info);
+
+		this._checkPluginVersions();
+
+		for (let event of ["connect", "drop", "resume", "close"] as const) {
+			// eslint-disable-next-line no-loop-func
+			this.connector.on(event, () => {
+				for (let plugin of this._controller.plugins.values()) {
+					plugin.onHostConnectionEvent(this, event);
+				}
+			});
+		}
+
+		this.connector.on("close", () => {
+			// Update status to unknown for instances on this host.
+			const instances: InstanceInfo[] = [];
+			for (let instance of this._controller.instances.valuesMutable()) {
+				if (instance.config.get("instance.assigned_host") !== this.id) {
+					continue;
+				}
+
+				instances.push(instance);
+				let prev = instance.status;
+				instance.status = "unknown";
+				lib.invokeHook(this._controller.plugins, "onInstanceStatusChanged", instance, prev);
+			}
+			this._controller.instances.setMany(instances);
+
+			this.info.connected = false;
+			this._controller.hosts.set(this.info);
+		});
+
+		this.handle(lib.GetFactorioCredentialsRequest, this.handleGetFactorioCredentialsRequest.bind(this));
+		this.handle(lib.HostInfoUpdateEvent, this.handleHostInfoUpdateEvent.bind(this));
+		this.handle(lib.InstanceStatusChangedEvent, this.handleInstanceStatusChangedEvent.bind(this));
+		this.handle(lib.InstancesUpdateRequest, this.handleInstancesUpdateRequest.bind(this));
+		this.handle(lib.InstanceSaveDetailsUpdatesEvent, this.handleInstanceSaveDetailsUpdatesEvent.bind(this));
+		this.handle(lib.LogMessageEvent, this.handleLogMessageEvent.bind(this));
+		this.handle(lib.InstancePlayerUpdateEvent, this.handleInstancePlayerUpdateEvent.bind(this));
+		this.snoopEvent(lib.InstanceAdminlistUpdateEvent, this.snoopInstanceAdminlistUpdateEvent.bind(this));
+		this.snoopEvent(lib.InstanceBanlistUpdateEvent, this.snoopInstanceBanlistUpdateEvent.bind(this));
+		this.snoopEvent(lib.InstanceWhitelistUpdateEvent, this.snoopInstanceWhitelistUpdateEvent.bind(this));
+	}
+
+	validateIngress(message: lib.MessageRoutable) {
+		let origin = this.connector.dst;
+		switch (message.src.type) {
+			case lib.Address.control:
+			case lib.Address.controller:
+				throw new lib.InvalidMessage(`Received message with invalid src ${message.src} from ${origin}`);
+
+			case lib.Address.host:
+				if (message.src.id !== origin.id) {
+					throw new lib.InvalidMessage(
+						`Received message with invalid src ${message.src} from ${origin}`
+					);
+				}
+				break;
+
+			case lib.Address.instance:
+				let instance = this._controller.instances.get(message.src.id);
+				if (!instance || instance.config.get("instance.assigned_host") !== this.id) {
+					throw new lib.InvalidMessage(
+						`Received message with invalid src ${message.src} from ${origin}`
+					);
+				}
+				break;
+
+			default:
+				throw new Error("Should be unreachable");
+		}
+	}
+
+	_checkPluginVersions() {
+		let pluginInfos = new Map(this._controller.pluginInfos.map(i => [i.name, i]));
+		for (let [name, version] of this.plugins) {
+			let info = pluginInfos.get(name);
+			if (!info) {
+				logger.warn(
+					`Host ${this.info.name} (${this.id}) has plugin ${name} ${version} which the ` +
+					"controller does not have",
+				);
+				continue;
+			}
+
+			if (info.version !== version) {
+				logger.warn(
+					`Host ${this.info.name} (${this.id}) has plugin ${name} ${version} which does not match ` +
+					`the version of this plugin on the controller (${info.version})`
+				);
+			}
+		}
+
+		for (let [name, info] of pluginInfos) {
+			if (!this.plugins.has(name)) {
+				logger.warn(`Host ${this.info.name} (${this.id}) is missing plugin ${name} ${info.version}`);
+			}
+		}
+	}
+
+	async prepareDisconnect() {
+		await lib.invokeHook(this._controller.plugins, "onPrepareHostDisconnect", this);
+		return await super.prepareDisconnect();
+	}
+
+	/**
+	 * ID of the host this connection is connected to
+	 *
+	 * @returns {number} host ID.
+	 */
+	get id() {
+		return this.info.id;
+	}
+
+	/**
+	 * Remote address of the host this connection is connected to
+	 *
+	 * @returns {string} host remote address.
+	 */
+	get remoteAddress() {
+		return this.info.remoteAddress;
+	}
+
+	async handleGetFactorioCredentialsRequest() {
+		if (this._controller.config.get("controller.share_factorio_credentials_with_hosts")) {
+			return {
+				username: this._controller.config.get("controller.factorio_username") ?? undefined,
+				token: this._controller.config.get("controller.factorio_token") ?? undefined,
+			};
+		}
+		return {};
+	}
+
+	async handleHostInfoUpdateEvent(event: lib.HostInfoUpdateEvent) {
+		this.info.name = event.update.name;
+		this.info.publicAddress = event.update.publicAddress;
+		this._controller.hosts.set(this.info);
+	}
+
+	async handleInstanceStatusChangedEvent(request: lib.InstanceStatusChangedEvent) {
+		let instance = this._controller.instances.getMutable(request.instanceId);
+
+		// It's possible to get updates from an instance that does not exist
+		// or is not assigned to the host it originated from if it was
+		// reassigned or deleted while the connection to the host it was
+		// originally on was down at the time.
+		if (!instance || instance.config.get("instance.assigned_host") !== this.id) {
+			logger.warn(`Got bogus update for instance id ${request.instanceId}`);
+			return;
+		}
+
+		// We may receive status changed where the status hasn't changed
+		// from our perspective if the connection was down at the time it
+		// changed.  Hosts also send status updates on assignInstance which
+		// for hacky reason is also used to push config changes and
+		// restablish status after a connection loss.
+		if (
+			instance.status === request.status
+			&& instance.gamePort === request.gamePort
+		) {
+			return;
+		}
+
+		let prev = instance.status;
+		instance.status = request.status;
+		instance.gamePort = request.gamePort;
+		instance.factorioVersion = request.factorioVersion;
+		this._controller.instances.set(instance);
+		logger.verbose(`Instance ${instance.config.get("instance.name")} State: ${instance.status}`);
+		await lib.invokeHook(this._controller.plugins, "onInstanceStatusChanged", instance, prev);
+	}
+
+	async handleInstancesUpdateRequest(request: lib.InstancesUpdateRequest) {
+		// Push updated instance configs
+		for (let instance of this._controller.instances.values()) {
+			if (instance.config.get("instance.assigned_host") === this.id) {
+				await this.send(
+					new lib.InstanceAssignInternalRequest(instance.id, instance.config.toRemote("host"))
+				);
+			}
+		}
+
+		// Assign instances the host has but controller does not
+		const instanceUpdates: InstanceInfo[] = [];
+		for (let instanceData of request.instances) {
+			const instanceConfig = new lib.InstanceConfig("controller");
+			instanceConfig.update(instanceData.config, false, "host");
+
+			let controllerInstance = this._controller.instances.getMutable(instanceConfig.get("instance.id"));
+			if (controllerInstance) {
+				// Check if this instance is assigned somewhere else.
+				if (controllerInstance.config.get("instance.assigned_host") !== this.id) {
+					await this.send(
+						new lib.InstanceUnassignInternalRequest(instanceConfig.get("instance.id"))
+					);
+					continue;
+				}
+
+				// Already have this instance, update state instead
+				if (controllerInstance.status !== instanceData.status) {
+					let prev = controllerInstance.status;
+					controllerInstance.status = instanceData.status;
+					controllerInstance.gamePort = instanceData.gamePort;
+					controllerInstance.factorioVersion = instanceData.factorioVersion;
+					instanceUpdates.push(controllerInstance);
+					logger.verbose(`Instance ${instanceConfig.get("instance.name")} State: ${instanceData.status}`);
+					await lib.invokeHook(
+						this._controller.plugins, "onInstanceStatusChanged", controllerInstance, prev
+					);
+				}
+				continue;
+			}
+
+			instanceConfig.set("instance.assigned_host", this.id);
+			let newInstance = new InstanceInfo(
+				instanceConfig,
+				instanceData.status,
+				instanceData.gamePort,
+				instanceData.factorioVersion,
+				Date.now(),
+			);
+			instanceUpdates.push(newInstance);
+			this._controller.addInstanceHooks(newInstance);
+			await this.send(
+				new lib.InstanceAssignInternalRequest(
+					instanceConfig.get("instance.id"), instanceConfig.toRemote("host")
+				)
+			);
+			await lib.invokeHook(this._controller.plugins, "onInstanceStatusChanged", newInstance);
+		}
+
+		this._controller.instances.setMany(instanceUpdates);
+
+		// Push lists to make sure they are in sync.
+		let adminlist: Set<string> = new Set();
+		let banlist: Map<string, string> = new Map();
+		let whitelist: Set<string> = new Set();
+
+		for (let user of this._controller.userManager.users.values()) {
+			if (user.isAdmin) {
+				adminlist.add(user.id);
+			}
+			if (user.isBanned) {
+				banlist.set(user.id, user.banReason);
+			}
+			if (user.isWhitelisted) {
+				whitelist.add(user.id);
+			}
+		}
+
+		await this.send(new lib.SyncUserListsEvent(adminlist, banlist, whitelist));
+	}
+
+	async handleInstanceSaveDetailsUpdatesEvent(event: lib.InstanceSaveDetailsUpdatesEvent) {
+		const updates: lib.SaveDetails[] = [];
+		const deletes: lib.SaveDetails[] = [];
+		for (const save of event.updates) {
+			const existingSave = this._controller.saves.get(save.id);
+			if (existingSave && save.equals(existingSave)) {
+				continue;
+			}
+			updates.push(save);
+		}
+		if (event.instanceId !== undefined) {
+			const updatedSaves = new Set(event.updates.map(s => s.id));
+			for (const save of this._controller.saves.values()) {
+				if (save.instanceId === event.instanceId && !updatedSaves.has(save.id)) {
+					deletes.push(save);
+				}
+			}
+		}
+		// Hosts eagerly send updates, which means we may get an update
+		// where nothing actually changed.
+		this._controller.saves.setMany(updates);
+		this._controller.saves.deleteMany(deletes);
+	}
+
+	async handleLogMessageEvent(event: lib.LogMessageEvent) {
+		this._controller.clusterLogger.log({
+			...event.info,
+			host_id: this.id,
+			host_name: this.info.name,
+		});
+	}
+
+	async handleInstancePlayerUpdateEvent(event: lib.InstancePlayerUpdateEvent, src: lib.Address) {
+		let instanceId = src.id;
+		let user = this._controller.userManager.getByName(event.name);
+		if (!user) {
+			user = this._controller.userManager.createUser(event.name);
+		}
+
+		if (event.type === "join") {
+			this._controller.userManager.notifyJoin(user, instanceId);
+		} else if (event.type === "leave") {
+			this._controller.userManager.notifyLeave(user, instanceId);
+		}
+
+		user.instanceStats.set(instanceId, event.stats);
+
+		user.recalculatePlayerStats();
+		this._controller.usersUpdated([user]);
+
+		let instance = this._controller.instances.get(instanceId)!;
+		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+			type: event.type,
+			name: event.name,
+			reason: event.reason,
+			stats: event.stats,
+		});
+	}
+
+	async snoopInstanceAdminlistUpdateEvent(event: lib.InstanceAdminlistUpdateEvent, src: lib.Address) {
+		if (src.type !== lib.Address.instance) {
+			return;
+		}
+
+		let user = this._controller.userManager.getByName(event.name);
+		if (!user) {
+			user = this._controller.userManager.createUser(event.name);
+		}
+
+		user.isAdmin = event.admin;
+		this._controller.usersUpdated([user]);
+		const instance = this._controller.instances.get(src.id)!;
+		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+			type: event.admin ? "promote" : "demote" as lib.PlayerEvent["type"],
+			name: event.name,
+			stats: user.instanceStats.get(src.id)!,
+		});
+	}
+
+	async snoopInstanceBanlistUpdateEvent(event: lib.InstanceBanlistUpdateEvent, src: lib.Address) {
+		if (src.type !== lib.Address.instance) {
+			return;
+		}
+
+		let user = this._controller.userManager.getByName(event.name);
+		if (!user) {
+			user = this._controller.userManager.createUser(event.name);
+		}
+
+		user.isBanned = event.banned;
+		user.banReason = event.reason;
+		this._controller.usersUpdated([user]);
+		const instance = this._controller.instances.get(src.id)!;
+		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+			type: event.banned ? "ban" : "unban" as lib.PlayerEvent["type"],
+			name: event.name,
+			stats: user.instanceStats.get(src.id)!,
+			resaon: event.reason,
+		});
+	}
+
+	async snoopInstanceWhitelistUpdateEvent(event: lib.InstanceWhitelistUpdateEvent, src: lib.Address) {
+		if (src.type !== lib.Address.instance) {
+			return;
+		}
+
+		let user = this._controller.userManager.getByName(event.name);
+		if (!user) {
+			user = this._controller.userManager.createUser(event.name);
+		}
+
+		user.isWhitelisted = event.whitelisted;
+		this._controller.usersUpdated([user]);
+		const instance = this._controller.instances.get(src.id)!;
+		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+			type: event.whitelisted ? "whitelisted" : "unwhitelisted" as lib.PlayerEvent["type"],
+			name: event.name,
+			stats: user.instanceStats.get(src.id)!,
+		});
+	}
+}
@@ -0,0 +1,88 @@
+import { Type, Static } from "@sinclair/typebox";
+import { HostDetails } from "@clusterio/lib";
+
+/**
+ * Info about a host known to the controller.
+ */
+export default class HostInfo {
+	constructor(
+		/** Id of this host */
+		public id: number,
+		/** Name of this host */
+		public name: string,
+		/** Version this host last connected with */
+		public version: string,
+		/** Plugins this host last connected with */
+		public plugins: Map<string, string>,
+		/** True if this host is currently connected to controller */
+		public connected: boolean = false,
+		/** IP this host last connected from */
+		public remoteAddress: string = "",
+		/** Value of host.public_address configured for this host */
+		public publicAddress: string = "",
+		/** Unix timestamp in seconds host token must be issued after to be valid */
+		public tokenValidAfter: number = 0,
+		/** Millisecond Unix timestamp this entry was last updated at */
+		public updatedAtMs: number = 0,
+		/** True if this host has been deleted */
+		public isDeleted: boolean = false,
+	) { }
+
+	static jsonSchema = Type.Object({
+		"id": Type.Number(),
+		"name": Type.String(),
+		"version": Type.String(),
+		"plugins": Type.Record(Type.String(), Type.String()),
+		"connected": Type.Boolean(),
+		"remote_address": Type.String(),
+		"public_address": Type.String(),
+		"token_valid_after": Type.Number(),
+		"updated_at_ms": Type.Number(),
+		"is_deleted": Type.Boolean(),
+	});
+
+	static fromJSON(json: Static<typeof this.jsonSchema>) {
+		return new this(
+			json.id,
+			json.name,
+			json.version,
+			new Map(Object.entries(json.plugins)),
+			json.connected,
+			json.remote_address,
+			json.public_address,
+			json.token_valid_after,
+			json.updated_at_ms,
+			json.is_deleted,
+		);
+	}
+
+	toJSON(): Static<typeof HostInfo.jsonSchema> {
+		return {
+			id: this.id,
+			name: this.name,
+			version: this.version,
+			plugins: Object.fromEntries(this.plugins),
+			connected: this.connected,
+			remote_address: this.remoteAddress,
+			public_address: this.publicAddress,
+			token_valid_after: this.tokenValidAfter,
+			updated_at_ms: this.updatedAtMs,
+			is_deleted: this.isDeleted,
+		};
+	}
+
+	toHostDetails() {
+		return new HostDetails(
+			this.version,
+			this.name,
+			this.id,
+			this.connected,
+			this.remoteAddress,
+			this.publicAddress,
+			this.tokenValidAfter,
+			this.updatedAtMs,
+			this.isDeleted,
+		);
+	}
+}
+
@@ -1,6 +1,7 @@
-"use strict";
-const http = require("http");
-const https = require("https");
+import type { Socket } from "net";
+
+import http from "http";
+import https from "https";

 /**
 * Gracefully close a Node.js HTTP(S) server
@@ -17,36 +18,40 @@ const https = require("https");
 * // in the shutdown logic
 * await serverCloser.close();
 *
- * @alias module:master/src/HttpCloser
+ * @alias module:controller/src/HttpCloser
 */
-class HttpCloser {
+export default class HttpCloser {
+	private _server: http.Server | https.Server;
+	private _sockets: Set<Socket>;
+	private _responses: Set<http.ServerResponse>;
+
 	/**
-	 * Server to attach this closer to.
-	 * @param {https.Server | http.Server} server - HTTP(S) to attach to
+	 * Create HttpCloser attached to a server.
+	 * @param server - Node.js HTTP(S) server to attach to.
 	 */
-	constructor(server) {
+	constructor(server: http.Server | https.Server) {
 		this._server = server;
 		this._sockets = new Set();
 		this._responses = new Set();

-		if (this._server instanceof http.Server) {
-			this._server.on("connection", this._addSocket.bind(this));
-		} else if (this._server instanceof https.Server) {
+		if (this._server instanceof https.Server) {
 			this._server.on("secureConnection", this._addSocket.bind(this));
+		} else if (this._server instanceof http.Server) {
+			this._server.on("connection", this._addSocket.bind(this));
 		} else {
 			throw Error("server must be an instance of either http.Server or https.Server.");
 		}
 		this._server.on("request", this._addRequest.bind(this));
 	}

-	_addSocket(socket) {
+	_addSocket(socket:Socket) {
 		this._sockets.add(socket);
 		socket.once("close", () => {
 			this._sockets.delete(socket);
 		});
 	}

-	_addRequest(request, response) {
+	_addRequest(request: http.IncomingMessage, response: http.ServerResponse) {
 		this._responses.add(response);
 		response.once("close", () => this._responses.delete(response));
 		response.once("finish", () => this._responses.delete(response));
@@ -62,16 +67,16 @@ class HttpCloser {
 	 * If there's requests in progress that still haven't been completed
 	 * after the timeout value passed they will be aborted.
 	 *
-	 * @param {number} timeout -
+	 * @param timeoutMs -
 	 *     Time in ms to wait for connections to close.
 	 */
-	async close(timeout = 5000) {
+	async close(timeoutMs: number = 5000): Promise<void> {
 		let activeSockets = new Set();
 		for (let response of this._responses) {
 			if (!response.headersSent) {
 				response.setHeader("Connection", "close");
 			} else {
-				let socket = response.socket;
+				let socket = response.socket!;
 				response.once("finish", () => {
 					socket.end();
 				});
@@ -92,7 +97,7 @@ class HttpCloser {
 					// Node.js, see nodejs/node#27428.
 					socket.destroy();
 				}
-			}, timeout);
+			}, timeoutMs);
 			this._server.close(err => {
 				clearTimeout(timer);
 				if (err) {
@@ -104,5 +109,3 @@ class HttpCloser {
 		});
 	}
 };
-
-module.exports = HttpCloser;
@@ -0,0 +1,66 @@
+import * as lib from "@clusterio/lib";
+import { Static, Type } from "@sinclair/typebox";
+
+
+/**
+ * Runtime status of an instance on the controller
+ * @alias module:controller/src/InstanceInfo
+ */
+export default class InstanceInfo {
+	constructor(
+		public config: lib.InstanceConfig,
+		public status: lib.InstanceStatus,
+		public gamePort?: number,
+		public factorioVersion?: string,
+		public updatedAtMs = 0,
+	) {
+		this.config = config;
+		this.status = status;
+	}
+
+	static jsonSchema = Type.Object({
+		"config": lib.InstanceConfig.jsonSchema,
+		"status": lib.InstanceStatus,
+		"gamePort": Type.Optional(Type.Number()),
+		"updatedAtMs": Type.Optional(Type.Number()),
+		"factorioVersion": Type.Optional(Type.String()),
+	});
+
+	static fromJSON(json: Static<typeof this.jsonSchema>, location: lib.ConfigLocation) {
+		return new this(
+			lib.InstanceConfig.fromJSON(json.config, location),
+			json.status,
+			json.gamePort,
+			json.factorioVersion,
+			json.updatedAtMs,
+		);
+	}
+
+	toInstanceDetails() {
+		return new lib.InstanceDetails(
+			this.config.get("instance.name"),
+			this.id,
+			this.config.get("instance.assigned_host") ?? undefined,
+			this.gamePort,
+			this.status,
+			this.factorioVersion,
+			this.updatedAtMs,
+		);
+	}
+
+	get isDeleted() {
+		return this.status === "deleted";
+	}
+
+	set isDeleted(value: boolean) {
+		if (value === false) {
+			throw new Error("Setting isDeleted to false is not supported, use status instead.");
+		}
+		this.status = "deleted";
+	}
+
+	/** Shorthand for `instance.config.get("instance.id")` */
+	get id():number {
+		return this.config.get("instance.id");
+	}
+}
@@ -0,0 +1,149 @@
+import fs from "fs-extra";
+import jwt from "jsonwebtoken";
+
+import * as lib from "@clusterio/lib";
+
+import ControllerUser from "./ControllerUser";
+
+/**
+ * Manages users and roles
+ * @alias module:controller/src/UserManager
+ */
+export default class UserManager {
+	roles: Map<lib.Role["id"], lib.Role> = new Map();
+	users: Map<ControllerUser["id"], ControllerUser> = new Map();
+	dirty = false;
+
+	/**
+	 * Set of users currently online in the cluster.
+	 */
+	onlineUsers = new Set<ControllerUser>();
+
+	constructor(
+		private _config: lib.ControllerConfig
+	) {
+	}
+
+	getByName(name: string) {
+		return this.users.get(name.toLowerCase());
+	}
+
+	async load(filePath: string): Promise<void> {
+		try {
+			let content = JSON.parse(await fs.readFile(filePath, { encoding: "utf8" }));
+			for (let serializedRole of content.roles) {
+				let role = lib.Role.fromJSON(serializedRole);
+				this.roles.set(role.id, role);
+			}
+
+			let duplicates = 0;
+			for (let serializedUser of content.users) {
+				let user = ControllerUser.fromJSON(serializedUser, this);
+				const existingUser = this.users.get(user.id);
+				if (existingUser) {
+					// Required migration to all lowercase ids in alpha 19
+					duplicates += 1;
+					// We assume the user with the lower online time is the duplicate
+					if (user.playerStats.onlineTimeMs <= existingUser.playerStats.onlineTimeMs) {
+						existingUser.merge(user);
+						continue; // Skip users.set
+					}
+					user.merge(existingUser);
+				}
+				this.users.set(user.id, user);
+			}
+
+			if (duplicates) {
+				const backupPath = `${filePath}.${Date.now()}.bak`;
+				lib.logger.warn(
+					`A total of ${duplicates} users were merged, a backup was written to: ${backupPath}`
+				);
+				await lib.safeOutputFile(backupPath, JSON.stringify(content, null, "\t"));
+			}
+
+		} catch (err: any) {
+			if (err.code !== "ENOENT") {
+				throw err;
+			}
+
+			// Create default roles if loading failed
+			lib.ensureDefaultAdminRole(this.roles);
+			lib.ensureDefaultPlayerRole(this.roles);
+		}
+	}
+
+	async save(filePath: string): Promise<void> {
+		let serializedRoles = [];
+		for (let role of this.roles.values()) {
+			serializedRoles.push(role.toJSON());
+		}
+
+		let serializedUsers = [];
+		for (let user of this.users.values()) {
+			serializedUsers.push(user.toJSON(true));
+		}
+
+		let serialized = {
+			users: serializedUsers,
+			roles: serializedRoles,
+		};
+		this.dirty = false;
+		await lib.safeOutputFile(filePath, JSON.stringify(serialized, null, "\t"));
+	}
+
+	/**
+	 * Creates a new user and add it to the user database.
+	 * @param name - Name of the user to create.
+	 * @returns The created user.
+	 */
+	createUser(name: string): ControllerUser {
+		if (this.getByName(name)) {
+			throw new Error(`User '${name}' already exists`);
+		}
+
+		let roles = new Set<number>();
+		let defaultRoleId = this._config.get("controller.default_role_id");
+		if (defaultRoleId !== null && this.roles.has(defaultRoleId)) {
+			roles.add(defaultRoleId);
+		}
+
+		let user = new ControllerUser(this, 0, name, roles);
+		this.users.set(user.id, user);
+		this.dirty = true;
+		return user;
+	}
+
+	/**
+	 * Sign access token for the given user
+	 *
+	 * @param user - user to sign token for
+	 * @returns JWT access token for the user.
+	 */
+	signUserToken(user: ControllerUser): string {
+		return jwt.sign(
+			{ aud: "user", user: user.id },
+			Buffer.from(this._config.get("controller.auth_secret"), "base64")
+		);
+	}
+
+	notifyJoin(user: ControllerUser, instance_id: number) {
+		user.instances.add(instance_id);
+		this.onlineUsers.add(user);
+	}
+
+	notifyLeave(user: ControllerUser, instance_id: number) {
+		user.instances.delete(instance_id);
+		if (!user.instances.size) {
+			this.onlineUsers.delete(user);
+		}
+	}
+
+	clearStatsOfInstance(instanceId: number) {
+		for (const user of this.users.values()) {
+			this.notifyLeave(user, instanceId);
+			user.instanceStats.delete(instanceId);
+			user.recalculatePlayerStats();
+		}
+		this.dirty = true;
+	}
+}
@@ -0,0 +1,395 @@
+import type { IncomingMessage } from "http";
+import type { Duplex } from "stream";
+import type Controller from "./Controller";
+
+import jwt from "jsonwebtoken";
+import WebSocket, { WebSocketServer } from "ws";
+
+import * as lib from "@clusterio/lib";
+const { logger } = lib;
+
+import ControlConnection from "./ControlConnection";
+import HostConnection from "./HostConnection";
+import WsServerConnector from "./WsServerConnector";
+
+import { version as packageVersion } from "../package.json";
+
+const wsMessageCounter = new lib.Counter(
+	"clusterio_controller_websocket_message_total",
+	"How many messages have been received over WebSocket on the controller",
+	{ labels: ["direction"] }
+);
+
+const wsConnectionsCounter = new lib.Counter(
+	"clusterio_controller_websocket_connections_total",
+	"How many WebSocket connections have been initiated on the controller"
+);
+
+const wsRejectedConnectionsCounter = new lib.Counter(
+	"clusterio_controller_websocket_rejected_connections_total",
+	"How many WebSocket connections have been rejected during the handshake on the controller"
+);
+
+/**
+ * WebSocket server
+ * @alias module:controller/src/WsServer
+ */
+export default class WsServer {
+	controller: Controller;
+	stopAcceptingNewSessions: boolean = false;
+	controlConnections: Map<number, ControlConnection> = new Map();
+	hostConnections: Map<number, HostConnection> = new Map();
+	activeConnectors: Map<number, WsServerConnector> = new Map();
+	pendingSockets: Set<WebSocket> = new Set();
+	// Unique string for the session token audience
+	sessionAud: string = `session-${Date.now()}`;
+	nextSessionId: number = 1;
+	nextControlId: number = 1;
+	wss: WebSocket.Server;
+
+	constructor(controller: Controller) {
+		this.controller = controller;
+
+		this.wss = new WebSocket.Server({
+			noServer: true,
+			path: "/api/socket",
+		});
+		this.wss.on("connection",
+			(socket: lib.WebSocketClusterio, req: IncomingMessage) => this.handleConnection(socket, req),
+		);
+	}
+
+	remoteAddr(req: IncomingMessage) {
+		const remote = req.socket.remoteAddress ?? "";
+		if (
+			remote && req.headers["x-forwarded-for"]
+			&& (
+				(req.socket.remoteFamily === "IPv4" && this.controller.trustedProxies.check(remote, "ipv4"))
+				|| (req.socket.remoteFamily === "IPv6" && this.controller.trustedProxies.check(remote, "ipv6"))
+			)
+		) {
+			return (req.headers["x-forwarded-for"] as string).split(",").slice(-1)[0].trim();
+		}
+		return remote;
+	}
+
+	async stop(): Promise<void> {
+		this.stopAcceptingNewSessions = true;
+
+		let disconnectTasks = [];
+		for (let controlConnection of this.controlConnections.values()) {
+			disconnectTasks.push(controlConnection.disconnect(lib.ConnectionClosed.GoingAway, "Server Quit"));
+		}
+
+		for (let hostConnection of this.hostConnections.values()) {
+			disconnectTasks.push(hostConnection.disconnect(lib.ConnectionClosed.GoingAway, "Server Quit"));
+		}
+
+		logger.info(`WsServer | Waiting for ${disconnectTasks.length} connectors to close`);
+		for (let task of disconnectTasks) {
+			try {
+				await task;
+			} catch (err: any) {
+				if (!(err instanceof lib.SessionLost)) {
+					logger.warn(`Unexpected error disconnecting connector:\n${err.stack}`);
+				}
+			}
+		}
+
+		for (let socket of this.pendingSockets) {
+			socket.close(lib.ConnectionClosed.GoingAway, "Server Quit");
+		}
+	}
+
+	handleUpgrade(
+		req: IncomingMessage,
+		socket: Duplex,
+		head: Buffer
+	) {
+		// For reasons that defy common sense, the connection event has
+		// to be emitted explictly when using noServer.
+		this.wss.handleUpgrade(req, socket, head, (ws) => {
+			this.wss.emit("connection", ws, req);
+		});
+	}
+
+	handleConnection(socket: lib.WebSocketClusterio, req: IncomingMessage) {
+		logger.verbose(`WsServer | new connection from ${this.remoteAddr(req)}`);
+
+		// Track statistics
+		wsConnectionsCounter.inc();
+		socket.on("message", (message: WebSocket.RawData) => {
+			wsMessageCounter.labels("in").inc();
+			if (!socket.clusterio_ignore_dump) {
+				this.controller.debugEvents.emit("message", { direction: "in", content: message.toString("utf8") });
+			}
+		});
+		let originalSend = socket.send;
+		socket.send = (...args: [string, any]) => {
+			wsMessageCounter.labels("out").inc();
+			if (typeof args[0] === "string" && !socket.clusterio_ignore_dump) {
+				this.controller.debugEvents.emit("message", { direction: "out", content: args[0] });
+			}
+			return originalSend.call(socket, ...args);
+		};
+
+		// Start connection handshake.
+		let loadedPlugins: {[key:string]: string} = {};
+		for (let [name, plugin] of this.controller.plugins) {
+			loadedPlugins[name] = plugin.info.version;
+		}
+
+		socket.send(JSON.stringify(new lib.MessageHello(new lib.HelloData(packageVersion, loadedPlugins))));
+		this.attachHandler(socket, req);
+	}
+
+	attachHandler(
+		socket: WebSocket,
+		req: IncomingMessage
+	) {
+		this.pendingSockets.add(socket);
+
+		let timeoutId = setTimeout(() => {
+			logger.verbose(`WsServer | closing ${this.remoteAddr(req)} after timing out on handshake`);
+			wsRejectedConnectionsCounter.inc();
+			socket.terminate();
+			this.pendingSockets.delete(socket);
+		}, 30*1000);
+
+		socket.once("message", (message: string) => {
+			clearTimeout(timeoutId);
+			this.pendingSockets.delete(socket);
+			this.handleHandshake(
+				message, socket, req
+			).catch(err => {
+				logger.error(`
+------------------------------------------------------------+
+| Unexpected error occured in WebSocket handshake, please    |
+| report it to https://github.com/clusterio/clusterio/issues |
+------------------------------------------------------------+
+${err.stack}`
+				);
+				wsRejectedConnectionsCounter.inc();
+				socket.close(lib.ConnectionClosed.InternalError, "Unexpected error");
+			});
+		});
+	}
+
+	async handleHandshake(rawMessage: string, socket: WebSocket, req: IncomingMessage) {
+		let message;
+		try {
+			const json = JSON.parse(rawMessage);
+			lib.Message.validate(json);
+			message = lib.Message.fromJSON(json);
+		} catch (err: any) {
+			logger.verbose(`WsServer | closing ${this.remoteAddr(req)} after receiving invalid message`);
+			wsRejectedConnectionsCounter.inc();
+			socket.close(lib.ConnectionClosed.ProtocolError, `Invalid message: ${err.message}`);
+			return;
+		}
+
+		if (message.type === "resume") {
+			this.resumeSession((message as lib.MessageResume).data, socket, req);
+			return;
+		}
+
+		if (message.type !== "registerHost" && message.type !== "registerControl") {
+			logger.verbose(`WsServer | closing ${this.remoteAddr(req)} after receiving invalid handshake`);
+			wsRejectedConnectionsCounter.inc();
+			socket.close(lib.ConnectionClosed.ProtocolError, "Bad handshake");
+			return;
+		}
+
+		if (this.stopAcceptingNewSessions) {
+			logger.verbose(`WsServer | closing ${this.remoteAddr(req)}, server is shutting down`);
+			wsRejectedConnectionsCounter.inc();
+			socket.close(lib.ConnectionClosed.GoingAway, "Shutting down");
+			return;
+		}
+
+		if (message.type === "registerHost") {
+			await this.registerHost((message as lib.MessageRegisterHost).data, socket, req);
+			return;
+		}
+
+		if (message.type === "registerControl") {
+			await this.registerControl((message as lib.MessageRegisterControl).data, socket, req);
+			return;
+		}
+
+		throw new Error("This should be unreachable");
+	}
+
+	createSession(dst: lib.Address): [ WsServerConnector, string ] {
+		let sessionId = this.nextSessionId;
+		this.nextSessionId += 1;
+		let sessionToken = jwt.sign(
+			{ aud: this.sessionAud, sid: sessionId },
+			Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
+		);
+		let sessionTimeout = this.controller.config.get("controller.session_timeout");
+		let heartbeatInterval = this.controller.config.get("controller.heartbeat_interval");
+		let connector = new WsServerConnector(dst, sessionId, sessionTimeout, heartbeatInterval);
+		this.activeConnectors.set(sessionId, connector);
+		connector.on("close", () => {
+			this.activeConnectors.delete(sessionId);
+		});
+
+		return [connector, sessionToken];
+	}
+
+	async registerHost(data: lib.RegisterHostData, socket: WebSocket, req: IncomingMessage) {
+		try {
+			let tokenPayload = jwt.verify(
+				data.token,
+				Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
+				// migrate: allow pre-rename tokens issued to hosts before alpha-14
+				{ audience: ["host", "slave"] }
+			);
+
+			if (typeof tokenPayload === "string") {
+				throw new Error("unexpected JsonWebToken type");
+			}
+
+			// migrate: allow pre-rename tokens issued to hosts before alpha-14
+			if ((tokenPayload.host !== undefined ? tokenPayload.host : tokenPayload.slave) !== data.id) {
+				throw new Error("missmatched host id");
+			}
+
+			let host = this.controller.hosts.get(data.id);
+			if (!tokenPayload.iat || tokenPayload.iat < (host?.tokenValidAfter ?? 0)) {
+				throw new Error("invalid token");
+			}
+		} catch (err: any) {
+			logger.verbose(`WsServer | authentication failed for ${this.remoteAddr(req)}`);
+			wsRejectedConnectionsCounter.inc();
+			socket.close(lib.ConnectionClosed.Unauthorized, `Authentication failed: ${err.message}`);
+			return;
+		}
+
+		let connection = this.hostConnections.get(data.id);
+		if (connection) {
+			if (connection.remoteAddress !== this.remoteAddr(req)) {
+				logger.verbose(
+					`WsServer | disallowed duplicate connection from ${this.remoteAddr(req)} for host ${data.id}`
+				);
+				wsRejectedConnectionsCounter.inc();
+				socket.close(lib.ConnectionClosed.PolicyViolation, "Host already connected from another address");
+				return;
+			}
+			logger.verbose(
+				`WsServer | disconnecting duplicate connection from host ${data.id}`
+			);
+			await connection.disconnect(
+				lib.ConnectionClosed.PolicyViolation, "Newer connection for host from same address"
+			);
+		}
+
+		logger.info(
+			`WsServer | registered host ${data.id} using version ${data.version}`
+		);
+		if (data.version !== packageVersion) {
+			logger.warn(
+				`Host ${data.id} connected using version ${data.version} which does not match the ` +
+				`version of the controller is currently running (${packageVersion}). It may not work as expected.`
+			);
+		}
+
+		let [connector, sessionToken] = this.createSession(new lib.Address(lib.Address.host, data.id));
+
+		// Handle close before HostConnection does. This avoids a host
+		// connection event happening between the connection breaking and
+		// it being removed from the host connections list.
+		connector.on("close", () => {
+			if (this.hostConnections.get(data.id) === connection) {
+				this.hostConnections.delete(data.id);
+			} else {
+				logger.warn("Unlisted HostConnection closed");
+			}
+		});
+
+		connection = new HostConnection(data, connector, this.controller, this.remoteAddr(req));
+		this.hostConnections.set(data.id, connection);
+		let src = new lib.Address(lib.Address.host, data.id);
+		connector.ready(socket, src, sessionToken, undefined);
+	}
+
+	async registerControl(data: lib.RegisterControlData, socket: WebSocket, req: IncomingMessage) {
+		let user;
+		try {
+			let tokenPayload = jwt.verify(
+				data.token,
+				Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
+				{ audience: "user" }
+			);
+
+			if (typeof tokenPayload === "string") {
+				throw new Error("unexpected JsonWebToken type");
+			}
+
+			user = this.controller.userManager.getByName(tokenPayload.user);
+			if (!user) {
+				throw new Error("invalid user");
+			}
+			if ((tokenPayload.iat || 0) < user.tokenValidAfter) {
+				throw new Error("invalid token");
+			}
+			user.checkPermission("core.control.connect");
+
+		} catch (err: any) {
+			logger.verbose(`WsServer | authentication failed for ${this.remoteAddr(req)}`);
+			wsRejectedConnectionsCounter.inc();
+			socket.close(lib.ConnectionClosed.Unauthorized, `Authentication failed: ${err.message}`);
+			return;
+		}
+
+		let id = this.nextControlId;
+		this.nextControlId += 1;
+		let [connector, sessionToken] = this.createSession(new lib.Address(lib.Address.control, id));
+
+		logger.verbose(`WsServer | registered control ${id} from ${this.remoteAddr(req)}`);
+		connector.on("close", () => {
+			this.controlConnections.delete(id);
+		});
+		let connection = new ControlConnection(data, connector, this.controller, user, id);
+		this.controlConnections.set(id, connection);
+		let account = new lib.AccountDetails(
+			user.name,
+			[...user.roles].map(r => ({
+				name: r.name,
+				id: r.id,
+				permissions: [...r.permissions],
+			}))
+		);
+
+		let src = new lib.Address(lib.Address.control, id);
+		connector.ready(socket, src, sessionToken, account);
+	}
+
+	resumeSession(data: lib.ResumeData, socket: WebSocket, req: IncomingMessage) {
+		let connector;
+		try {
+			let payload = jwt.verify(
+				data.sessionToken,
+				Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
+				{ audience: this.sessionAud }
+			);
+
+			if (typeof payload === "string") {
+				throw new Error("unexpected JsonWebToken type");
+			}
+
+			connector = this.activeConnectors.get(payload.sid);
+			if (!connector) {
+				throw new Error();
+			}
+
+		} catch (err) {
+			socket.send(JSON.stringify(new lib.MessageInvalidate()));
+			this.attachHandler(socket, req);
+			return;
+		}
+
+		connector.continue(socket, data.lastSeq as number);
+	}
+}
@@ -1,24 +1,27 @@
-"use strict";
-const events = require("events");
+import type WebSocket from "ws";

-const libLink = require("@clusterio/lib/link");
-const { logger } = require("@clusterio/lib/logging");
+import events from "events";
+
+import * as lib from "@clusterio/lib";
+const { logger } = lib;


 /**
- * Connector for master server connections
+ * Connector for controller connections
 *
- * @extends module:lib/link.WebSocketBaseConnector
- * @alias module:master/src/WsServerConnector
+ * @extends module:lib.WebSocketBaseConnector
+ * @alias module:controller/src/WsServerConnector
 */
-class WsServerConnector extends libLink.WebSocketBaseConnector {
-	constructor(sessionId, sessionTimeout, heartbeatInterval) {
-		super(sessionTimeout);
+export default class WsServerConnector extends lib.WebSocketBaseConnector {
+	_timeoutId: ReturnType<typeof setTimeout> | null = null;

-		this._socket = null;
-		this._sessionId = sessionId;
-		this._heartbeatInterval = heartbeatInterval;
-		this._timeoutId = null;
+	constructor(
+		dst: lib.Address,
+		private _sessionId: number,
+		private _sessionTimeout: number,
+		public _heartbeatInterval: number,
+	) {
+		super(new lib.Address(lib.Address.controller, 0), dst);

 		// The following states are used in the server connector
 		// closed: Connection is closed
@@ -27,8 +30,10 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 	}

 	_reset() {
-		clearTimeout(this._timeoutId);
-		this._timeoutId = null;
+		if (this._timeoutId) {
+			clearTimeout(this._timeoutId);
+			this._timeoutId = null;
+		}
 		super._reset();
 	}

@@ -37,28 +42,31 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 	 *
 	 * Sends the ready message over the socket to initiate the session.
 	 *
-	 * @param {Object} socket - WebSocket connection to client.
-	 * @param {string} sessionToken -
-	 *     the session token to send to the client.
-	 * @param {Object=} additionalData -
-	 *     extra properties to send along the ready message.
+	 * @param socket - WebSocket connection to client.
+	 * @param src - Source address for this link.
+	 * @param sessionToken - the session token to send to the client.
+	 * @param account - account data to provide to control connection
 	 */
-	ready(socket, sessionToken, additionalData) {
+	ready(
+		socket: WebSocket.WebSocket,
+		src: lib.Address,
+		sessionToken: string,
+		account: lib.AccountDetails | undefined
+	) {
 		this._socket = socket;
-		this._socket.send(JSON.stringify({
-			seq: null,
-			type: "ready",
-			data: {
-				session_token: sessionToken,
-				session_timeout: this._sessionTimeout,
-				heartbeat_interval: this._heartbeatInterval,
-				...additionalData,
-			},
-		}));
+		this._sendInternal(new lib.MessageReady(
+			new lib.ReadyData(
+				src,
+				sessionToken,
+				this._sessionTimeout,
+				this._heartbeatInterval,
+				account,
+			),
+		));

 		this._state = "connected";
 		this._attachSocketHandlers();
-		this.emit("connect");
+		this.emit("connect", { src: this.src });
 	}

 	/**
@@ -67,14 +75,17 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 	 * Terminates the current socket and contiunes the session over the
 	 * socket given from the message sequence given.
 	 *
-	 * @param {module:net.Socket} socket - New socket to continue on.
-	 * @param {number} lastSeq - The last message the client received.
+	 * @param socket - New socket to continue on.
+	 * @param lastSeq - The last message the client received.
 	 */
-	continue(socket, lastSeq) {
+	continue(
+		socket: WebSocket.WebSocket,
+		lastSeq: number
+	) {

 		// It's possible the previous connection hasn't closed yet due to a
 		// stale connection.  Terminate it if so.
-		if (this._state === "connected") {
+		if (this._state === "connected" && this._socket !== null) {
 			this._socket.terminate();
 			this._socket.once("close", () => this.continue(socket, lastSeq));
 			return;
@@ -87,15 +98,9 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 			this._timeoutId = null;
 		}

-		this._socket.send(JSON.stringify({
-			seq: null,
-			type: "continue",
-			data: {
-				last_seq: this._lastReceivedSeq,
-				session_timeout: this._sessionTimeout,
-				heartbeat_interval: this._heartbeatInterval,
-			},
-		}));
+		this._sendInternal(new lib.MessageContinue(
+			new lib.ContinueData(this._sessionTimeout, this._heartbeatInterval, this._lastReceivedSeq)
+		));

 		this._state = "connected";
 		this._attachSocketHandlers();
@@ -113,11 +118,16 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 	}

 	_attachSocketHandlers() {
+		if (this._socket === null) {
+			throw new Error("this._socket is null");
+		}
+
 		this.startHeartbeat();

-		this._socket.on("close", (code, reason) => {
+		this._socket.on("close", (code: number, reason: string) => {
 			logger.verbose(`Connector | Close (code: ${code}, reason: ${reason})`);
 			this.stopHeartbeat();
+			this._socket = null;

 			if (this._closing) {
 				this._reset();
@@ -128,10 +138,9 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 				this.emit("drop");
 				this._timeoutId = setTimeout(() => { this._timedOut(); }, this._sessionTimeout * 1000);
 			}
-
 		});

-		this._socket.on("error", err => {
+		this._socket.on("error", (err: any) => {
 			// It's assumed that close is always called by ws
 			logger.verbose("Connector | Error:", err);
 		});
@@ -139,27 +148,21 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 		this._socket.on("open", () => {
 			logger.verbose("Connector | Open");
 		});
-		this._socket.on("ping", data => {
+		this._socket.on("ping", (data: string) => {
 			logger.verbose(`Connector | Ping (data: ${data}`);
 		});
-		this._socket.on("pong", data => {
+		this._socket.on("pong", (data: string) => {
 			logger.verbose(`Connector | Pong (data: ${data}`);
 		});

 		// Handle messages
-		this._socket.on("message", data => {
-			let message = JSON.parse(data);
-			if (["connected", "closing"].includes(this._state)) {
-				if (message.seq !== null) {
-					this._lastReceivedSeq = message.seq;
-				}
-
-				if (message.type === "heartbeat") {
-					this._processHeartbeat(message);
-
-				} else {
-					this.emit("message", message);
-				}
+		this._socket.on("message", (data: string) => {
+			let message = this._parseMessage(data);
+			if (!message) {
+				return;
+			}
+			if (this._state === "connected") {
+				this._processMessage(message);

 			} else {
 				throw new Error(`Received message in unexpected state ${this._state}`);
@@ -172,10 +175,13 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 	 *
 	 * Sends a close frame and disconnects the connector.
 	 *
-	 * @param {number} code - WebSocket close code.
-	 * @param {string} reason - WebSocket close reason.
+	 * @param code - WebSocket close code.
+	 * @param reason - WebSocket close reason.
 	 */
-	async close(code, reason) {
+	async close(
+		code: number,
+		reason: string
+	): Promise<void> {
 		if (this._state === "closed") {
 			return;
 		}
@@ -187,10 +193,26 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 		}

 		this._closing = true;
-		this._socket.close(code, reason);
+		if (this._socket !== null) {
+			this._socket.close(code, reason);
+		}
 		await events.once(this, "close");
 	}

+	/**
+	 * Forcefully close the connection immediately
+	 *
+	 * This should only be used if there's a security implication from
+	 * letting the connection carry on with a normal close proceedure.
+	 */
+	terminate() {
+		this.setClosing();
+
+		if (this._socket) {
+			this._socket.terminate();
+		}
+	}
+
 	/**
 	 * Notify the connection is expected to close
 	 *
@@ -209,5 +231,3 @@ class WsServerConnector extends libLink.WebSocketBaseConnector {
 		this._closing = true;
 	}
 }
-
-module.exports = WsServerConnector;
@@ -0,0 +1,13 @@
+import * as lib from "@clusterio/lib";
+import util from "util";
+
+export const endpointHitCounter = new lib.Counter(
+	"clusterio_controller_http_endpoint_hits_total",
+	"How many requests a particular HTTP endpoint has gotten",
+	{ labels: ["route"], register: false }
+);
+
+endpointHitCounter.labels = util.deprecate(
+	endpointHitCounter.labels,
+	"incrementing endpointHitCounter is no longer needed and has no effect"
+);
@@ -0,0 +1,693 @@
+import type { Application, Request, Response } from "express";
+import type Controller from "./Controller";
+
+import busboy from "busboy";
+import crypto from "crypto";
+import events from "events";
+import fs from "fs-extra";
+import JSZip from "jszip";
+import jwt from "jsonwebtoken";
+import path from "path";
+import nodeStream from "stream";
+import util from "util";
+
+import * as lib from "@clusterio/lib";
+const { logger } = lib;
+
+const finished = util.promisify(nodeStream.finished);
+
+declare global {
+	// eslint-disable-next-line @typescript-eslint/no-namespace
+	namespace Express {
+		export interface Locals {
+			controller: Controller,
+			mainBundle: string,
+			devPlugins: Map<string, number>,
+			streams: Map<string, ProxyStream>
+		}
+	}
+}
+
+// Merges samples from sourceResult to destinationResult
+function mergeSamples(destinationResult: lib.CollectorResultSerialized, sourceResult: lib.CollectorResultSerialized) {
+	let receivedSamples = new Map(sourceResult.samples);
+	for (let [suffix, suffixSamples] of destinationResult.samples) {
+		if (receivedSamples.has(suffix)) {
+			suffixSamples.push(...receivedSamples.get(suffix) as any[]);
+			receivedSamples.delete(suffix);
+		}
+	}
+
+	for (let entry of receivedSamples) {
+		destinationResult.samples.push(entry);
+	}
+}
+
+// Prometheus polling endpoint
+async function getMetrics(req: Request, res: Response, next: any) {
+	const controller: Controller = req.app.locals.controller;
+
+	let results: lib.CollectorResult[] = [];
+	let pluginResults = await lib.invokeHook(controller.plugins, "onMetrics");
+	for (let metricIterator of pluginResults) {
+		for await (let metric of metricIterator) {
+			results.push(metric);
+		}
+	}
+
+	let requests: Promise<InstanceType<typeof lib.HostMetricsRequest["Response"]> | null>[] = [];
+	let timeoutMs = controller.config.get("controller.metrics_timeout") * 1000;
+	for (let [hostId, hostConnection] of controller.wsServer.hostConnections) {
+		if (!hostConnection.connected) {
+			continue;
+		}
+		requests.push(lib.timeout(
+			hostConnection.send(new lib.HostMetricsRequest()).catch((err: any) => {
+				if (!(err instanceof lib.SessionLost)) {
+					logger.error(`Unexpected error gathering metrics from host:\n${err.stack}`);
+				}
+				return null;
+			}),
+			timeoutMs, null
+		));
+	}
+
+	for await (let result of lib.defaultRegistry.collect()) {
+		results.push(result);
+	}
+
+	let resultMap: Map<string, lib.CollectorResultSerialized> = new Map();
+	for (let response of await Promise.all(requests)) {
+		if (!response) {
+			// TODO: Log timeout occured?
+			continue;
+		}
+
+		for (let result of response.results) {
+			if (!resultMap.has(result.metric.name)) {
+				resultMap.set(result.metric.name, result);
+
+			} else {
+				// Merge metrics received by multiple hosts
+				mergeSamples(resultMap.get(result.metric.name)!, result);
+			}
+		}
+	}
+
+	for (let result of resultMap.values()) {
+		results.push(lib.deserializeResult(result));
+	}
+
+	let text = await lib.exposition(results);
+	res.set("Content-Type", lib.expositionContentType);
+	res.send(text);
+}
+
+
+function getPlugins(req: Request, res: Response) {
+	let plugins: lib.PluginWebApi[] = [];
+	for (let pluginInfo of req.app.locals.controller.pluginInfos) {
+		let name = pluginInfo.name;
+		let loaded = req.app.locals.controller.plugins.has(name);
+		let enabled = loaded && req.app.locals.controller.config.get(
+			`${pluginInfo.name}.load_plugin` as keyof lib.ControllerConfigFields,
+		) as unknown as boolean;
+		// Note: Cast through unknown is needed because load_plugin is
+		// defined at runtime and no other fields in the controller config
+		// currently have the boolean type.
+		let web: { main:any, error:string|undefined } = { main: undefined, error: undefined};
+		let devPlugins = req.app.locals.devPlugins;
+		if (devPlugins && devPlugins.has(name)) {
+			let stats = res.locals.webpack.devMiddleware.stats.stats[devPlugins.get(name)!];
+			web.main = stats.toJson().assetsByChunkName[name];
+		} else if (pluginInfo.manifest) {
+			web.main = pluginInfo.manifest[`${pluginInfo.name}.js`];
+			if (!web.main) {
+				web.error = `Missing ${pluginInfo.name}.js entry in manifest.json`;
+			}
+		} else {
+			web.error = "Missing dist/web/manifest.json";
+		}
+		if (web.main === "remoteEntry.js") {
+			web.error = "Incompatible old remoteEntry.js entrypoint.";
+		}
+		plugins.push({ name, version: pluginInfo.version, enabled, loaded, web, npmPackage: pluginInfo.npmPackage });
+	}
+	res.send(plugins);
+}
+
+function validateHostToken(req: Request, res: Response, next: any) {
+	let token = req.header("x-access-token");
+	if (!token) {
+		res.sendStatus(401);
+		return;
+	}
+
+	try {
+		const tokenPayload = jwt.verify(
+			token,
+			Buffer.from(req.app.locals.controller.config.get("controller.auth_secret"), "base64"),
+			{ audience: "host" }
+		);
+
+		if (typeof tokenPayload === "string") {
+			throw new Error("unexpected JsonWebToken type");
+		}
+		let host = req.app.locals.controller.hosts.get(tokenPayload.host);
+		if (!host) {
+			throw new Error("invalid host");
+		}
+		if (!tokenPayload.iat || tokenPayload.iat < (host.tokenValidAfter ?? 0)) {
+			throw new Error("invalid token");
+		}
+	} catch (err) {
+		res.sendStatus(401);
+		return;
+	}
+
+	next();
+}
+
+function validateUserToken(req: Request, res: Response, next: any) {
+	let token = req.header("x-access-token");
+	if (!token) {
+		res.sendStatus(401);
+		return;
+	}
+
+	try {
+		let tokenPayload = jwt.verify(
+			token,
+			Buffer.from(req.app.locals.controller.config.get("controller.auth_secret"), "base64"),
+			{ audience: "user" }
+		);
+
+		if (typeof tokenPayload === "string") {
+			throw new Error("unexpected JsonWebToken type");
+		}
+		let user = req.app.locals.controller.userManager.getByName(tokenPayload.user);
+		if (!user) {
+			throw new Error("invalid user");
+		}
+		if (!tokenPayload.iat || tokenPayload.iat < user.tokenValidAfter) {
+			throw new Error("invalid token");
+		}
+		res.locals.user = user;
+
+	} catch (err) {
+		res.sendStatus(401);
+		return;
+	}
+
+	next();
+}
+
+// Handle an uploaded export package.
+async function uploadExport(req: Request, res: Response) {
+	if (req.get("Content-Type") !== "application/zip") {
+		res.sendStatus(415);
+		return;
+	}
+
+	if (typeof req.query.mod_pack_id !== "string") {
+		res.sendStatus(400);
+		return;
+	}
+	let modPackId = Number.parseInt(req.query.mod_pack_id, 10);
+	if (!Number.isInteger(modPackId)) {
+		res.sendStatus(400);
+		return;
+	}
+	let modPack = res.app.locals.controller.modPacks.getMutable(modPackId);
+	if (!modPack) {
+		res.sendStatus(400);
+		return;
+	}
+
+	let data = [];
+	for await (let chunk of req) {
+		data.push(chunk);
+	}
+	let buffer: Buffer | null = Buffer.concat(data);
+	let zip = await JSZip.loadAsync(buffer);
+	buffer = null;
+
+	// This is hardcoded to prevent path expansion attacks
+	let exportFiles = [
+		"export/settings.json",
+		"export/prototypes.json",
+		"export/item-spritesheet.png",
+		"export/item-metadata.json",
+		"export/locale.json",
+	];
+
+	let assets: any = {};
+	let settingPrototypes = {};
+	for (let filePath of exportFiles) {
+		let file = zip.file(filePath);
+		if (!file) {
+			continue;
+		}
+
+		if (filePath === "export/settings.json") {
+			settingPrototypes = JSON.parse(await file.async("text"));
+		}
+
+		let { name, ext } = path.posix.parse(filePath);
+		let hash = await lib.hashStream(file.nodeStream());
+		assets[name] = `${name}.${hash}${ext}`;
+		await lib.safeOutputFile(path.join("static", `${name}.${hash}${ext}`), await file.async("nodebuffer"));
+	}
+
+	modPack.exportManifest = new lib.ExportManifest(assets);
+	modPack.fillDefaultSettings(settingPrototypes, logger);
+	res.app.locals.controller.modPacks.set(modPack);
+
+	res.sendStatus(200);
+}
+
+
+export interface ProxyStream {
+	id: string;
+	source: nodeStream.Readable | null;
+	flowing: boolean;
+	size?: string;
+	mime?: string;
+	filename: string | null;
+	events: events.EventEmitter;
+	timeout: ReturnType<typeof setTimeout>;
+}
+
+export async function createProxyStream(app: Application): Promise<ProxyStream> {
+	let asyncRandomBytes = util.promisify(crypto.randomBytes);
+	let id = (await asyncRandomBytes(8)).toString("hex");
+	let stream: ProxyStream = {
+		id,
+		source: null,
+		flowing: false,
+		size: undefined,
+		mime: undefined,
+		filename: null,
+		events: new events.EventEmitter(),
+		timeout: setTimeout(() => {
+			stream.events.emit("timeout");
+		}, app.locals.controller.config.get("controller.proxy_stream_timeout") * 1000),
+	};
+	stream.events.on("close", () => {
+		clearTimeout(stream.timeout);
+		app.locals.streams.delete(id);
+	});
+	stream.events.on("timeout", () => {
+		stream.events.emit("close");
+	});
+	app.locals.streams.set(id, stream);
+	return stream;
+}
+
+async function putStream(req: Request, res: Response) {
+	const stream = req.app.locals.streams.get(req.params.id);
+	if (!stream || stream.source) {
+		res.sendStatus(404);
+		return;
+	}
+	stream.source = req;
+	stream.mime = req.get("Content-Type");
+	stream.size = req.get("Content-Length");
+
+	stream.events.emit("source");
+	stream.events.on("close", () => {
+		if (!stream.flowing) {
+			req.resume();
+			res.sendStatus(500);
+		} else {
+			res.sendStatus(200);
+		}
+	});
+}
+
+function startStream(res: Response, stream: ProxyStream) {
+	res.append("Content-Type", stream.mime);
+	if (stream.size) {
+		res.append("Content-Length", stream.size);
+	}
+	if (stream.filename) {
+		res.append("Content-Disposition", `attachment; filename="${stream.filename}"`);
+	} else {
+		res.append("Content-Disposition", "attachment");
+	}
+	stream.source!.pipe(res);
+	stream.flowing = true;
+	res.on("close", () => {
+		stream.events.emit("close");
+	});
+	clearTimeout(stream.timeout);
+}
+
+async function getStream(req: Request, res: Response) {
+	const stream = req.app.locals.streams.get(req.params.id);
+	if (!stream || stream.flowing) {
+		res.sendStatus(404);
+		return;
+	}
+
+	if (stream.source) {
+		startStream(res, stream);
+	} else {
+		stream.events.on("source", () => startStream(res, stream));
+		stream.events.on("timeout", () => {
+			res.sendStatus(500);
+		});
+	}
+}
+
+
+const zipMimes = [
+	"application/zip",
+	"application/x-zip-compressed",
+];
+
+const contentTypeRegExp = /^([!#$%&'*+\-.^_`|~0-9A-Za-z]+\/[!#$%&'*+\-.^_`|~0-9A-Za-z]+)/;
+
+async function uploadSave(req: Request, res: Response) {
+	try {
+		res.locals.user.checkPermission("core.instance.save.upload");
+	} catch (err: any) {
+		res.status(403).json({ request_errors: [err.message] });
+		return;
+	}
+
+	let contentType = req.get("Content-Type") || "";
+	let match = contentTypeRegExp.exec(contentType);
+	if (!match) {
+		res.status(415).json({ request_errors: ["invalid Content-Type"] });
+		return;
+	}
+	let contentMime = match[1].toLowerCase();
+
+	let tasks = [];
+	let errors: string[] = [];
+	let requestErrors = [];
+	let saves: string[] = [];
+
+	async function handleFile(instanceId:number, stream: nodeStream.Readable, filename: string, streamMime: string) {
+		let proxyStream = await createProxyStream(req.app);
+		proxyStream.source = stream;
+		proxyStream.mime = streamMime;
+		let timeout = new Promise<never>((_, reject) => {
+			proxyStream.events.on("timeout", () => {
+				stream.resume();
+				reject(new Error("Timed out establishing stream to host"));
+			});
+		});
+
+		try {
+			let storedName: string = await Promise.race([
+				req.app.locals.controller.sendToHostByInstanceId(
+					new lib.InstancePullSaveRequest(
+						instanceId,
+						proxyStream.id,
+						filename,
+					)
+				),
+				timeout,
+			]);
+			saves.push(storedName);
+
+		} catch (err: any) {
+			proxyStream.events.emit("close");
+			logger.error(`Error uploading save: ${err.message}`);
+			errors.push(err.message);
+			stream.resume();
+		}
+	}
+
+	if (contentMime === "multipart/form-data") {
+		await new Promise(resolve => {
+			let instanceId: number | undefined;
+			function fileHandler(
+				name: string,
+				stream: nodeStream.Readable,
+				{ filename, mimeType }: { filename: string, mimeType: string }
+			) {
+				if (instanceId === undefined) {
+					requestErrors.push("instance_id must come before files uploaded");
+				}
+				if (!zipMimes.includes(mimeType)) {
+					requestErrors.push("invalid file Content-Type");
+				}
+				if (!filename.endsWith(".zip")) {
+					requestErrors.push("filename must end with .zip");
+				}
+				if (errors.length || requestErrors.length) {
+					stream.resume();
+					return;
+				}
+				tasks.push(handleFile(instanceId as number, stream, filename, mimeType));
+			}
+			let parser = busboy({ headers: req.headers });
+			parser.on("file", fileHandler);
+			parser.on("field", (name, value, info) => {
+				if (name === "instance_id") {
+					instanceId = Number.parseInt(value, 10);
+					if (Number.isNaN(instanceId)) {
+						requestErrors.push("invalid instance_id");
+					}
+				}
+			});
+			parser.on("close", resolve);
+			parser.on("error", (err: any) => {
+				logger.error(`Error parsing multipart request in upload-save:\n${err.stack}`);
+				errors.push(err.message);
+			});
+			req.pipe(parser);
+		});
+
+	} else if (zipMimes.includes(contentMime)) {
+		let filename = req.query.filename;
+		if (typeof filename !== "string") {
+			requestErrors.push("Missing or invalid filename parameter");
+		} else if (!filename.endsWith(".zip")) {
+			requestErrors.push("filename must end with .zip");
+		}
+		let instanceId = Number.parseInt(String(req.query.instance_id), 10);
+		if (Number.isNaN(instanceId)) {
+			requestErrors.push("Missing or invalid instance_id parameter");
+		}
+
+		if (errors.length || requestErrors.length) {
+			req.resume();
+		} else {
+			tasks.push(handleFile(instanceId, req, filename as string, contentMime));
+		}
+
+	} else {
+		res.status(415).json({ request_errors: ["invalid Content-Type"] });
+		return;
+	}
+
+	await Promise.all(tasks);
+
+	if (errors.length) {
+		res.status(500);
+		res.json({ errors, request_errors: requestErrors });
+		return;
+	}
+	if (requestErrors.length) {
+		res.status(400);
+		res.json({ request_errors: requestErrors });
+		return;
+	}
+
+	res.json({ saves });
+}
+
+function checkModName(name: string) {
+	try {
+		lib.checkFilename(name);
+	} catch (err: any) {
+		throw new lib.RequestError(`Mod name ${err.message}`);
+	}
+}
+
+async function uploadMod(req: Request, res: Response) {
+	try {
+		res.locals.user.checkPermission("core.mod.upload");
+	} catch (err: any) {
+		res.status(403).json({ request_errors: [err.message] });
+		return;
+	}
+
+	let contentType = req.get("Content-Type")!;
+	let match = contentTypeRegExp.exec(contentType);
+	if (!match) {
+		res.status(415).json({ request_errors: ["invalid Content-Type"] });
+		return;
+	}
+	let contentMime = match[1].toLowerCase();
+
+	let tasks = [];
+	let errors: string[] = [];
+	let requestErrors = [];
+	let mods: any[] = [];
+
+	async function handleFile(stream: nodeStream.Readable, filename: string) {
+		try {
+			checkModName(filename);
+
+		} catch (err: any) {
+			logger.error(`Error uploading mod: ${err.message}`);
+			errors.push(err.message);
+			stream.resume();
+			return;
+		}
+
+		const modsDirectory = req.app.locals.controller.config.get("controller.mods_directory");
+		let tempFilename = filename.replace(/(\.zip)?$/, ".tmp.zip");
+
+		let writeStream;
+		try {
+
+			while (true) {
+				try {
+					writeStream = fs.createWriteStream(path.join(modsDirectory, tempFilename), { flags: "wx" });
+					await events.once(writeStream, "open");
+					break;
+				} catch (err: any) {
+					if (err.code === "EEXIST") {
+						tempFilename = await lib.findUnusedName(modsDirectory, tempFilename, ".tmp.zip");
+					} else {
+						throw err;
+					}
+				}
+			}
+			stream.pipe(writeStream);
+			await finished(writeStream);
+
+			const modInfo = await lib.ModInfo.fromModFile(path.join(modsDirectory, tempFilename));
+			checkModName(modInfo.filename);
+			await fs.rename(path.join(modsDirectory, tempFilename), path.join(modsDirectory, modInfo.filename));
+			req.app.locals.controller.modStore.addMod(modInfo);
+			mods.push(modInfo.toJSON());
+
+		} catch (err: any) {
+			logger.error(`Error uploading mod: ${err.message}`);
+			errors.push(err.message);
+			stream.resume();
+
+			// Attempt to clean up.
+			if (writeStream) {
+				writeStream.destroy();
+			}
+
+			try {
+				await fs.unlink(path.join(modsDirectory, tempFilename));
+			} catch (unlinkErr: any) {
+				if (unlinkErr.code !== "ENOENT") {
+					logger.error(`Error removing ${tempFilename}: ${unlinkErr.message}`);
+				}
+			}
+		}
+	}
+
+	if (contentMime === "multipart/form-data") {
+		await new Promise(resolve => {
+			function fileHandler(
+				name: string,
+				stream: nodeStream.Readable,
+				{ filename, mimeType }: { filename: string, mimeType: string }
+			) {
+				if (!zipMimes.includes(mimeType)) {
+					requestErrors.push("invalid file Content-Type");
+				}
+				if (!filename.endsWith(".zip")) {
+					requestErrors.push("filename must end with .zip");
+				}
+				if (errors.length || requestErrors.length) {
+					stream.resume();
+					return;
+				}
+				tasks.push(handleFile(stream, filename));
+			}
+
+			let parser = busboy({ headers: req.headers });
+			parser.on("file", fileHandler);
+			parser.on("close", resolve);
+			parser.on("error", (err: any) => {
+				logger.error(`Error parsing multipart request in upload-mod:\n${err.stack}`);
+				errors.push(err.message);
+			});
+			req.pipe(parser);
+		});
+
+	} else if (zipMimes.includes(contentMime)) {
+		let filename = req.query.filename;
+		if (typeof filename !== "string") {
+			requestErrors.push("Missing or invalid filename parameter");
+		} else if (!filename.endsWith(".zip")) {
+			requestErrors.push("filename must end with .zip");
+		}
+
+		if (errors.length || requestErrors.length) {
+			req.resume();
+		} else {
+			tasks.push(handleFile(req, filename as string));
+		}
+
+	} else {
+		res.status(415).json({ request_errors: ["invalid Content-Type"] });
+		return;
+	}
+
+	await Promise.all(tasks);
+
+	if (errors.length) {
+		res.status(500);
+		res.json({ errors, request_errors: requestErrors });
+		return;
+	}
+	if (requestErrors.length) {
+		res.status(400);
+		res.json({ request_errors: requestErrors });
+		return;
+	}
+
+	res.json({ mods });
+}
+
+
+export function addRouteHandlers(app: Application) {
+	app.get("/metrics", (req:Request, res:Response, next:any) => getMetrics(req, res, next).catch(next));
+	app.get("/api/plugins", getPlugins);
+	app.put("/api/upload-export",
+		validateHostToken,
+		(req:Request, res:Response, next:any) => uploadExport(req, res).catch(next)
+	);
+	app.put("/api/stream/:id", (req:Request, res:Response, next:any) => putStream(req, res).catch(next));
+	app.get("/api/stream/:id", (req:Request, res:Response, next:any) => getStream(req, res).catch(next));
+	app.post("/api/upload-save",
+		validateUserToken,
+		(req:Request, res:Response, next:any) => uploadSave(req, res).catch(next)
+	);
+	app.post("/api/upload-mod",
+		validateUserToken,
+		(req:Request, res:Response, next:any) => uploadMod(req, res).catch(next)
+	);
+}
+
+// Routes used in the web interface and served by the controller
+export const webRoutes = [
+	"/",
+	"/controller",
+	"/hosts",
+	"/hosts/:id/view",
+	"/instances",
+	"/instances/:id/view",
+	"/mods",
+	"/mods/mod-packs/:id/view",
+	"/users",
+	"/users/:id/view",
+	"/roles",
+	"/roles/:id/view",
+	"/plugins",
+	"/plugins/:name/view",
+];
@@ -0,0 +1,11 @@
+{
+	"extends": "../../tsconfig.browser.json",
+	"references": [
+		{ "path": "../lib/tsconfig.browser.json" },
+		{ "path": "../web_ui/tsconfig.browser.json" },
+	],
+	"include": [ "web/**/*.tsx", "web/**/*.ts", "package.json" ],
+	"compilerOptions": {
+		"rootDir": "..",
+	}
+}
@@ -0,0 +1,7 @@
+{
+	"files": [],
+	"references": [
+		{ "path": "./tsconfig.node.json" },
+		{ "path": "./tsconfig.browser.json" },
+	],
+}
@@ -0,0 +1,7 @@
+{
+	"extends": "../../tsconfig.node.json",
+	"references": [
+		{ "path": "../lib/tsconfig.node.json" },
+	],
+	"include": ["index.ts", "controller.ts", "package.json", "src/**/*.ts"],
+}
@@ -0,0 +1,4 @@
+{
+	"entryPoints": ["index.ts"],
+	"includeVersion": true
+}
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		<meta name="theme-color" content="#2a2a2a" />
+		<title>__CLUSTER_NAME__</title>
+		<style>
+			html {
+				color: #fff;
+				background-color: #000;
+			}
+
+			#bootstrap-msg {
+				font: 20px serif;
+				color: #aaa;
+				margin: auto;
+				margin-top: 1em;
+				width: fit-content;
+				white-space: pre;
+			}
+		</style>
+	</head>
+	<body>
+		<noscript>You need to enable JavaScript to run this app.</noscript>
+		<div id="root">
+			<div id="bootstrap-msg">Loading web interface...</div>
+		</div>
+		<script id="script-bundle" src="__STATIC_ROOT____MAIN_BUNDLE__" defer></script>
+		<script>
+			webRoot = new URL("__WEB_ROOT__", document.location).pathname;
+			staticRoot = new URL("__STATIC_ROOT__", document.location).pathname;
+			function scriptError(err) {
+				console.error(err);
+				let bootstrapMsg = document.getElementById("bootstrap-msg");
+				if (bootstrapMsg) {
+					let errorMsg = err;
+					if (err?.message) {
+						errorMsg = `${err?.constructor?.name ?? "Error"}: ${err.message}`;
+					}
+					bootstrapMsg.textContent = `${errorMsg}\nSee web console for details.`;
+				}
+			}
+			const bundleScript = document.getElementById("script-bundle");
+			bundleScript.addEventListener("error", () => scriptError("Main bundle failed to load."));
+			window.addEventListener("error", event => scriptError(event.error));
+		</script>
+	</body>
+</html>
@@ -0,0 +1,5 @@
+declare function scriptError(err: any): void;
+import("@clusterio/web_ui")
+	.then(webUi => webUi.bootstrap())
+	.catch(scriptError)
+;
@@ -7,18 +7,16 @@ const common = require("@clusterio/web_ui/webpack.common");

 module.exports = (env = {}) => merge(common(env), {
 	context: __dirname,
-	entry: "./web/index.jsx",
+	entry: "./web/index.tsx",
 	devServer: {
 		contentBase: "./dist/web",
 	},
 	output: {
-		publicPath: "auto",
-		filename: "bundle.js",
 		path: path.resolve(__dirname, "dist", "web"),
 	},
 	plugins: [
 		new webpack.container.ModuleFederationPlugin({
-			name: "master",
+			name: "controller",
 			shared: {
 				"@clusterio/lib": { singleton: true },
 				"@clusterio/web_ui": { singleton: true },
@@ -12,10 +12,24 @@ const util = require("util");
 const yargs = require("yargs");

 const { levels, logger, setLogLevel } = require("./logging");
+const { copyPluginTemplates } = require("./template");
 let dev = false;
 const scriptExt = process.platform === "win32" ? ".cmd" : "";
 const finished = util.promisify(stream.finished);
+const { escapeArg } = require("./escape_arg");

+// I hate this, there is a bug with rl.close on windows that was meant to have been fixed in Node14.4
+// See nodejs/node#21771 and nodejs/node#30701 for the apparent fix that was applied
+// One option is to not call rl.close: SBoudrias/Inquirer.js#767
+// But this comes with its own issues: SBoudrias/Inquirer.js#899
+// The solution below was adapted from aws-amplify/amplify-cli#12347
+if (process.platform === "win32") {
+	const _inquirer_close = inquirer.ui.Prompt.prototype.close;
+	inquirer.ui.Prompt.prototype.close = function() {
+		this.rl.terminal = false;
+		_inquirer_close.call(this);
+	};
+}

 const availablePlugins = [
 	{ name: "Global Chat", value: "@clusterio/plugin-global_chat" },
@@ -86,21 +100,32 @@ class InstallError extends Error { }


 async function safeOutputFile(file, data, options={}) {
-	let temporary = `${file}.tmp`;
+	let { dir, name, ext } = path.parse(file);
+	let temporary = path.join(dir, `${name}.tmp${ext}`);
 	await fs.outputFile(temporary, data, options);
 	await fs.rename(temporary, file);
 }

 async function execFile(cmd, args) {
-	logger.verbose(`executing ${cmd} ${args.join(" ")}`);
+	const escaped = args.map(escapeArg);
+	logger.verbose(`executing ${cmd} ${escaped.join(" ")}`);
 	return new Promise((resolve, reject) => {
-		let child = child_process.execFile(cmd, args, (err, stdout, stderr) => {
-			if (err) {
-				reject(err);
-			} else {
-				resolve({ stdout, stderr });
+		let child = child_process.execFile(
+			cmd,
+			escaped,
+			{
+				shell: true,
+				// eslint-disable-next-line node/no-process-env
+				env: process.platform === "win32" ? { ...process.env, pct: "%" } : undefined,
+			},
+			(err, stdout, stderr) => {
+				if (err) {
+					reject(err);
+				} else {
+					resolve({ stdout, stderr });
+				}
 			}
-		});
+		);
 		let stdout = new LineSplitter({ readableObjectMode: true });
 		stdout.on("data", line => { logger.verbose(line.toString()); });
 		child.stdout.pipe(stdout);
@@ -110,28 +135,28 @@ async function execFile(cmd, args) {
 	});
 }

-async function execMaster(args) {
+async function execController(args) {
 	if (dev) {
-		return await execFile("node", [path.join("packages", "master"), ...args]);
+		return await execFile("node", [path.join(__dirname, "..", "controller"), ...args]);
 	}
-	return await execFile(path.join("node_modules", ".bin", `clusteriomaster${scriptExt}`), args);
+	return await execFile(path.join("node_modules", ".bin", `clusteriocontroller${scriptExt}`), args);
 }

-async function execSlave(args) {
+async function execHost(args) {
 	if (dev) {
-		return await execFile("node", [path.join("packages", "slave"), ...args]);
+		return await execFile("node", [path.join(__dirname, "..", "host"), ...args]);
 	}
-	return await execFile(path.join("node_modules", ".bin", `clusterioslave${scriptExt}`), args);
+	return await execFile(path.join("node_modules", ".bin", `clusteriohost${scriptExt}`), args);
 }

 async function execCtl(args) {
 	if (dev) {
-		return await execFile("node", [path.join("packages", "ctl"), ...args]);
+		return await execFile("node", [path.join(__dirname, "..", "ctl"), ...args]);
 	}
 	return await execFile(path.join("node_modules", ".bin", `clusterioctl${scriptExt}`), args);
 }

-function validateSlaveToken(token) {
+function validateHostToken(token) {
 	let parts = token.split(".");
 	if (parts.length !== 3) {
 		throw new InstallError("Invalid token");
@@ -144,7 +169,7 @@ function validateSlaveToken(token) {
 		throw new InstallError("Invalid token");
 	}

-	if (parsed.aud !== "slave" || !Number.isInteger(parsed.slave)) {
+	if (parsed.aud !== "host" || !Number.isInteger(parsed.host)) {
 		throw new InstallError("Invalid token");
 	}
 }
@@ -168,9 +193,169 @@ async function validateInstallDir() {
 	}
 }

+async function validateNotRoot(args) {
+	if (args.allowInstallAsRoot) {
+		return;
+	}
+
+	if (os.userInfo().uid === 0) {
+		throw new InstallError(
+			"Refusing to install as root. Create a separate user account for clusterio " +
+			"and then use su/sudo to switch to it before invoking the installer."
+		);
+	}
+}
+
+async function migrateRename(args) {
+	function rename(string) {
+		return string.replace(/master/g, "controller").replace(/slave/g, "host");
+	}
+
+	function renameConfig(config) {
+		for (let group of config["groups"]) {
+			group["name"] = rename(group["name"]);
+			group["fields"] = Object.fromEntries(
+				Object.entries(group["fields"]).map(([k, v]) => [rename(k), v])
+			);
+		}
+		return config;
+	}
+
+	async function migrateConfig(source, destination) {
+		if (await fs.pathExists(source) && !await fs.pathExists(destination)) {
+			await safeOutputFile(destination, JSON.stringify(
+				renameConfig(JSON.parse(await fs.readFile(source))), null, "\t"
+			));
+			logger.info(`Migrated ${source} to ${destination}`);
+		}
+	}
+
+	await migrateConfig("config-master.json", "config-controller.json");
+	await migrateConfig("config-slave.json", "config-host.json");
+
+	let instancesFile = path.join("database", "instances.json");
+	if (await fs.pathExists(instancesFile)) {
+		await safeOutputFile(instancesFile, JSON.stringify(
+			JSON.parse(await fs.readFile(instancesFile)).map(renameConfig), null, "\t"
+		));
+		logger.info(`Migrated ${instancesFile}`);
+	}
+
+	let usersFile = path.join("database", "users.json");
+	if (await fs.pathExists(usersFile)) {
+		let users = JSON.parse(await fs.readFile(usersFile));
+		for (let role of users["roles"]) {
+			role["permissions"] = role["permissions"].map(rename);
+		}
+		await safeOutputFile(usersFile, JSON.stringify(users, null, "\t"));
+		logger.info(`Migrated ${usersFile}`);
+	}
+
+	function renameLogLine(info) {
+		return Object.fromEntries(
+			Object.entries(info).map(([k, v]) => [rename(k), v])
+		);
+	}
+
+	async function migrateLog(inputFile, outputFile) {
+		let lineStream = new LineSplitter({ readableObjectMode: true });
+		let fileStream = fs.createReadStream(inputFile);
+		fileStream.pipe(lineStream);
+		let lines = [];
+
+		for await (let inputLine of lineStream) {
+			try {
+				lines.push(Buffer.from(JSON.stringify(renameLogLine(JSON.parse(inputLine)))));
+				lines.push(Buffer.from("\n"));
+			} catch (err) {
+				if (!(err instanceof SyntaxError)) {
+					throw err;
+				}
+				logger.warn(`Invalid log line: ${inputLine.toString()}`);
+				lines.push(inputLine);
+			}
+		}
+		safeOutputFile(outputFile, Buffer.concat(lines));
+	}
+
+	async function migrateLogsDir(inputLogs, outputLogs) {
+		if (await fs.pathExists(inputLogs)) {
+			logger.info(`Migrating ${inputLogs} to ${outputLogs}`);
+			for (let logFile of await fs.readdir(inputLogs)) {
+				if (!logFile.endsWith(".log")) {
+					continue;
+				}
+				let inputFile = path.join(inputLogs, logFile);
+				let outputFile = path.join(outputLogs, rename(logFile));
+				if (!await fs.pathExists(outputFile)) {
+					await migrateLog(inputFile, outputFile);
+					logger.verbose(`Migrated ${inputFile} to ${outputFile}`);
+				}
+			}
+		}
+	}
+
+	await migrateLogsDir(path.join("logs", "master"), path.join("logs", "controller"));
+	await migrateLogsDir(path.join("logs", "slave"), path.join("logs", "host"));
+	if (
+		await fs.pathExists(path.join("logs", "cluster"))
+		&& !await fs.pathExists(path.join("logs", "cluster-prerename"))
+	) {
+		await fs.rename(path.join("logs", "cluster"), path.join("logs", "cluster-prerename"));
+		await migrateLogsDir(path.join("logs", "cluster-prerename"), path.join("logs", "cluster"));
+	}
+
+	if (
+		await fs.pathExists("sharedMods")
+		&& !await fs.pathExists("mods")
+	) {
+		logger.info("Moving sharedMods/ to mods/");
+		await fs.rename("sharedMods", "mods");
+	}
+
+	if (!args.dev) {
+		let pkg = JSON.parse(await fs.readFile("package.json"));
+		if (pkg.dependencies) {
+			let convert = ["@clusterio/master", "@clusterio/slave"];
+			let uninstall = convert.filter(c => pkg.dependencies[c] !== undefined);
+			let install = uninstall.map(rename);
+			if (uninstall.length) {
+				logger.info(`Replacing ${uninstall.join(" and ")}`);
+				await execFile(`npm${scriptExt}`, ["install", ...install]);
+				await execFile(`npm${scriptExt}`, ["uninstall", ...uninstall]);
+			}
+		}
+		logger.info("Updating packages");
+		await execFile(`npm${scriptExt}`, ["update"]);
+	}
+
+	const hasRunMaster = await fs.pathExists("run-master.sh") || await fs.pathExists("run-master.cmd");
+	const hasRunSlave = await fs.pathExists("run-slave.sh") || await fs.pathExists("run-slave.cmd");
+	if (hasRunMaster || hasRunSlave) {
+		logger.info("Writing run scripts");
+		let mode = "standalone";
+		if (!hasRunSlave) { mode = "controller"; }
+		if (!hasRunMaster) { mode = "host"; }
+		await writeScripts(mode);
+	}
+
+	logger.info(
+		"Migration complete, you may now delete the following left over files and directories (if present):" +
+		"\n- config-master.json" +
+		"\n- config-slave.json" +
+		"\n- logs/master" +
+		"\n- logs/slave" +
+		"\n- logs/cluster-prerename" +
+		"\n- systemd/clusteriomaster.service" +
+		"\n- systemd/clusterioslave.service" +
+		"\n- run-master.sh / run-master.cmd" +
+		"\n- run-slave.sh / run-slave.cmd"
+	);
+}
+
 async function installClusterio(mode, plugins) {
 	try {
-		await safeOutputFile("package.json", JSON.stringify({
+		await fs.outputFile("package.json", JSON.stringify({
 			name: "clusterio-install",
 			private: true,
 		}, null, 2), { flag: "wx" });
@@ -181,11 +366,11 @@ async function installClusterio(mode, plugins) {
 	}

 	let components = [];
-	if (["standalone", "master"].includes(mode)) {
-		components.push("@clusterio/master");
+	if (["standalone", "controller"].includes(mode)) {
+		components.push("@clusterio/controller");
 	}
-	if (["standalone", "slave"].includes(mode)) {
-		components.push("@clusterio/slave");
+	if (["standalone", "host"].includes(mode)) {
+		components.push("@clusterio/host");
 	}
 	if (mode === "ctl") {
 		components.push("@clusterio/ctl");
@@ -213,78 +398,129 @@ async function installClusterio(mode, plugins) {
 		for (let plugin of plugins) {
 			if (!pluginList.has(plugin)) {
 				// eslint-disable-next-line node/global-require
-				let pluginInfo = require(require.resolve(path.posix.join(plugin, "info"), { paths: [process.cwd()] }));
+				let pluginInfo = require(require.resolve(plugin, { paths: [process.cwd()] })).plugin;
 				pluginList.set(pluginInfo.name, plugin);
 			}
 		}
 		try {
-			await safeOutputFile("plugin-list.json", JSON.stringify([...pluginList], null, 4));
+			await safeOutputFile("plugin-list.json", JSON.stringify([...pluginList], null, "\t"));
 		} catch (err) {
 			throw new InstallError(`Error writing plugin-list.json: ${err.message}`);
 		}
 	}
 }

+async function groupIdToName(gid) {
+	try {
+		let exec = util.promisify(child_process.exec);
+		let { stdout } = await exec(`getent group ${gid}`);
+		return stdout.split(":")[0];
+	} catch (err) {
+		logger.warn(`getent group ${gid} failed: ${err.message}`);
+		return gid;
+	}
+}
+
 async function writeScripts(mode) {
-	if (["standalone", "master"].includes(mode)) {
+	if (["standalone", "controller"].includes(mode)) {
 		if (process.platform === "win32") {
 			await safeOutputFile(
-				"run-master.cmd",
-				"@echo off\n.\\node_modules\\.bin\\clusteriomaster.cmd run\n"
+				"run-controller.cmd",
+				`\
+@echo off
+set "NODE_OPTIONS=--enable-source-maps %NODE_OPTIONS%"
+:restart
+call .\\node_modules\\.bin\\clusteriocontroller.cmd run --can-restart
+if %errorlevel% equ 0 exit /b
+if %errorlevel% equ 8 exit /b
+goto restart
+`
 			);
 		} else {
 			await safeOutputFile(
-				"run-master.sh",
-				"#!/bin/sh\nexec ./node_modules/.bin/clusteriomaster run\n",
+				"run-controller.sh",
+				`\
+#!/bin/bash
+export "NODE_OPTIONS=--enable-source-maps $NODE_OPTIONS"
+while true; do
+	./node_modules/.bin/clusteriocontroller run --can-restart
+	if [[ $? -eq 0 || $? -eq 8 ]]; then exit $?; fi
+done
+`,
 				{ mode: 0o755 },
 			);
 			await safeOutputFile(
-				"systemd/clusteriomaster.service",
-				`[Unit]
-Description=Clusterio Master
+				"systemd/clusteriocontroller.service",
+				`\
+[Unit]
+Description=Clusterio Controller

 [Service]
 User=${os.userInfo().username}
-Group=nogroup
+Group=${await groupIdToName(os.userInfo().gid)}
 WorkingDirectory=${process.cwd()}
 KillMode=mixed
 KillSignal=SIGINT
-ExecStart=${process.cwd()}/node_modules/.bin/clusteriomaster run --log-level=warn
+Environment=NODE_OPTIONS=--enable-source-maps
+ExecStart=${process.cwd()}/node_modules/.bin/clusteriocontroller run --log-level=warn --can-restart
+Restart=on-failure
+RestartPreventExitStatus=8

 [Install]
 WantedBy=multi-user.target
-`);
+`
+			);
 		}
 	}

-	if (["standalone", "slave"].includes(mode)) {
+	if (["standalone", "host"].includes(mode)) {
 		if (process.platform === "win32") {
 			await safeOutputFile(
-				"run-slave.cmd",
-				"@echo off\n.\\node_modules\\.bin\\clusterioslave.cmd run\n"
+				"run-host.cmd",
+				`\
+@echo off
+set "NODE_OPTIONS=--enable-source-maps %NODE_OPTIONS%"
+:restart
+call .\\node_modules\\.bin\\clusteriohost.cmd run --can-restart
+if %errorlevel% equ 0 exit /b
+if %errorlevel% equ 8 exit /b
+goto restart
+`
 			);
 		} else {
 			await safeOutputFile(
-				"run-slave.sh",
-				"#!/bin/sh\nexec ./node_modules/.bin/clusterioslave run\n",
+				"run-host.sh",
+				`\
+#!/bin/bash
+export "NODE_OPTIONS=--enable-source-maps $NODE_OPTIONS"
+while true; do
+	./node_modules/.bin/clusteriohost run --can-restart
+	if [[ $? -eq 0 || $? -eq 8 ]]; then exit $?; fi
+done
+`,
 				{ mode: 0o755 },
 			);
 			await safeOutputFile(
-				"systemd/clusterioslave.service",
-				`[Unit]
-Description=Clusterio Slave
+				"systemd/clusteriohost.service",
+				`\
+[Unit]
+Description=Clusterio Host

 [Service]
 User=${os.userInfo().username}
-Group=nogroup
+Group=${await groupIdToName(os.userInfo().gid)}
 WorkingDirectory=${process.cwd()}
 KillMode=mixed
 KillSignal=SIGINT
-ExecStart=${process.cwd()}/node_modules/.bin/clusterioslave run --log-level=warn
+Environment=NODE_OPTIONS=--enable-source-maps
+ExecStart=${process.cwd()}/node_modules/.bin/clusteriohost run --log-level=warn --can-restart
+Restart=on-failure
+RestartPreventExitStatus=8

 [Install]
 WantedBy=multi-user.target
-`);
+`
+			);
 		}
 	}
 }
@@ -293,6 +529,7 @@ WantedBy=multi-user.target
 async function inquirerMissingArgs(args) {
 	let answers = {};
 	if (args.mode) { answers.mode = args.mode; }
+	if (args["plugin-template"]) { answers.mode = "plugin-template"; }
 	answers = await inquirer.prompt([
 		{
 			type: "list",
@@ -300,16 +537,17 @@ async function inquirerMissingArgs(args) {
 			message: "Operating mode to install",
 			default: "standalone",
 			choices: [
-				{ name: "Standalone (install both master and slave on this computer)", value: "standalone" },
-				{ name: "Master only", value: "master" },
-				{ name: "Slave only", value: "slave" },
+				{ name: "Standalone (install both controller and host on this computer)", value: "standalone" },
+				{ name: "Controller only", value: "controller" },
+				{ name: "Host only", value: "host" },
 				{ name: "Ctl only", value: "ctl" },
 				{ name: "Plugins only", value: "plugins" },
+				{ name: "Plugin template", value: "plugin-template" },
 			],
 		},
 	], answers);

-	if (["standalone", "master"].includes(answers.mode)) {
+	if (["standalone", "controller"].includes(answers.mode)) {
 		if (args.admin) { answers.admin = args.admin; }
 		answers = await inquirer.prompt([
 			{
@@ -324,44 +562,63 @@ async function inquirerMissingArgs(args) {
 				},
 			},
 		], answers);
-	}

-	if (answers.mode === "slave") {
-		if (args.slaveName) { answers.slaveName = args.slaveName; }
+		if (args.httpPort) { answers.httpPort = args.httpPort; }
 		answers = await inquirer.prompt([
 			{
 				type: "input",
-				name: "slaveName",
-				message: "Name of slave",
+				name: "httpPort",
+				message: "HTTP port to listen on",
+				default: 8080,
+				validate: input => {
+					if (!input) {
+						return "May not be empty";
+					}
+					if (!Number.isInteger(Number(input))) {
+						return "Must be a number";
+					}
+					return true;
+				},
 			},
 		], answers);
 	}

-	if (["slave", "ctl"].includes(answers.mode)) {
-		if (args.masterUrl) { answers.masterUrl = args.masterUrl; }
+	if (answers.mode === "host") {
+		if (args.hostName) { answers.hostName = args.hostName; }
 		answers = await inquirer.prompt([
 			{
 				type: "input",
-				name: "masterUrl",
-				message: "Master server URL",
-			},
-		], answers);
-
-		if (args.masterToken) { answers.masterToken = args.masterToken; }
-		answers = await inquirer.prompt([
-			{
-				type: "input",
-				name: "masterToken",
-				message: "Master authentication Token",
+				name: "hostName",
+				message: "Name of host",
 			},
 		], answers);
 	}

-	if (answers.mode === "slave") {
-		validateSlaveToken(answers.masterToken);
+	if (["host", "ctl"].includes(answers.mode)) {
+		if (args.controllerUrl) { answers.controllerUrl = args.controllerUrl; }
+		answers = await inquirer.prompt([
+			{
+				type: "input",
+				name: "controllerUrl",
+				message: "Controller URL",
+			},
+		], answers);
+
+		if (args.controllerToken) { answers.controllerToken = args.controllerToken; }
+		answers = await inquirer.prompt([
+			{
+				type: "input",
+				name: "controllerToken",
+				message: "Controller authentication Token",
+			},
+		], answers);
 	}

-	if (["standalone", "slave"].includes(answers.mode)) {
+	if (answers.mode === "host") {
+		validateHostToken(answers.controllerToken);
+	}
+
+	if (["standalone", "host"].includes(answers.mode)) {
 		let myIp = "localhost";
 		if (args.publicAddress) {
 			answers.publicAddress = args.publicAddress;
@@ -400,7 +657,7 @@ async function inquirerMissingArgs(args) {
 				},
 			], answers);

-			if (answers.downloadHeadless) {
+			if (!answers.factorioDir && answers.downloadHeadless) {
 				answers.factorioDir = "factorio";
 			}
 		}
@@ -432,6 +689,39 @@ async function inquirerMissingArgs(args) {
 		}
 	}

+	if (answers.mode === "plugin-template") {
+		if (args["plugin-template"] && args["plugin-template"].length > 0) {
+			answers.pluginTemplate = args["plugin-template"];
+		}
+		if (args["plugin-name"]) {
+			answers.pluginName = args["plugin-name"];
+		}
+		answers.plugins = [];
+		answers = await inquirer.prompt([
+			{
+				type: "checkbox",
+				name: "pluginTemplate",
+				message: "Plugin templates to use",
+				choices: [
+					{ name: "Controller", value: "controller" },
+					{ name: "Host", value: "host" },
+					{ name: "Instance", value: "instance" },
+					{ name: "Lua Module", value: "module" },
+					{ name: "Command Line", value: "ctl" },
+					{ name: "Web UI", value: "web" },
+					{ name: "No Typescript", value: "js" },
+					{ name: "No Config", value: "no_config" },
+				],
+			},
+			{
+				type: "input",
+				name: "pluginName",
+				message: "Name of your new plugin",
+				default: path.basename(path.resolve()),
+			},
+		], answers);
+	}
+
 	if (dev) {
 		answers.plugins = [];
 	} else if (args.plugins) {
@@ -456,7 +746,11 @@ async function downloadLinuxServer() {
 	const url = new URL(res.headers.location);
 	// get the filename of the latest factorio archive from redirected url
 	const filename = path.posix.basename(url.pathname);
-	const version = filename.match(/(?<=factorio_headless_x64_).*(?=\.tar\.xz)/)[0];
+	const match = filename.match(/(?<=factorio_headless_x64_|factorio-headless_linux_)\d+\.\d+\.\d+(?=\.tar\.xz)/);
+	if (!match || !match.length) {
+		throw Error(`Unable to extract version from filename: ${filename}`);
+	}
+	const version = match[0];

 	const tmpDir = "temp/create-temp/";
 	const archivePath = tmpDir + filename;
@@ -508,41 +802,56 @@ async function main() {
 		})
 		.option("mode", {
 			nargs: 1, describe: "Operating mode to install",
-			choices: ["standalone", "master", "slave", "ctl", "plugins"],
+			choices: ["standalone", "controller", "host", "ctl", "plugins", "plugin-template"],
+		})
+		.option("migrate-rename", {
+			nargs: 0, describe: "Migrate from before slave/master rename", default: false, type: "boolean",
 		})
 		.option("admin", {
-			nargs: 1, describe: "Admin account name [standalone/master]", type: "string",
+			nargs: 1, describe: "Admin account name [standalone/controller]", type: "string",
 		})
-		.option("slave-name", {
-			nargs: 1, describe: "Slave name [slave]", type: "string",
+		.option("http-port", {
+			nargs: 1, describe: "HTTP port to listen on [standalone/controller]", type: "number",
 		})
-		.option("master-url", {
-			nargs: 1, describe: "Master URL [slave/ctl]", type: "string",
+		.option("host-name", {
+			nargs: 1, describe: "Host name [host]", type: "string",
 		})
-		.option("master-token", {
-			nargs: 1, describe: "Master authentication token [slave/ctl]", type: "string",
+		.option("controller-url", {
+			nargs: 1, describe: "Controller URL [host/ctl]", type: "string",
+		})
+		.option("controller-token", {
+			nargs: 1, describe: "Controller authentication token [host/ctl]", type: "string",
 		})
 		.option("public-address", {
-			nargs: 1, describe: "DNS/IP Address to connect to this server [standalone/slave]", type: "string",
+			nargs: 1, describe: "DNS/IP Address to connect to this server [standalone/host]", type: "string",
 		})
 		.option("factorio-dir", {
-			nargs: 1, describe: "Path to Factorio installation [standalone/slave]", type: "string",
+			nargs: 1, describe: "Path to Factorio installation [standalone/host]", type: "string",
 		})
 		.option("plugins", {
 			array: true, describe: "Plugins to install", type: "string",
 		})
+		.option("plugin-template", {
+			array: true, describe: "Plugin template to use [plugin-template]", type: "string",
+		})
+		.option("plugin-name", {
+			nargs: 1, describe: "Name of your new plugin [plugin-template]", type: "string",
+		})
 		.strict()
 	;

 	if (process.platform === "linux") {
 		args = args
+			.option("allow-install-as-root", {
+				nargs: 0, describe: "(Linux only) Allow installing as root (not recommended)", type: "boolean",
+			})
 			.option("download-headless", {
 				nargs: 0,
 				describe: "(Linux only) Automatically download and unpack the latest factorio release. " +
 					"Can be set to false using --no-download-headless.",
 				type: "boolean",
 			})
-			.conflicts("factorio-dir", "download-headless");
+		;
 	}

 	args = args.argv;
@@ -552,61 +861,78 @@ async function main() {

 	if (!dev) {
 		await validateInstallDir();
+		await validateNotRoot(args);
+	}
+
+	if (args.migrateRename) {
+		await migrateRename(args);
+		return;
 	}

 	let answers = await inquirerMissingArgs(args);
-	if (answers.downloadHeadless) {
-		await downloadLinuxServer();
+	logger.verbose(JSON.stringify(answers));
+
+	if (answers.pluginTemplate) {
+		await copyPluginTemplates(answers.pluginName, answers.pluginTemplate);
+		return;
 	}

-	logger.verbose(JSON.stringify(answers));
+	if (answers.downloadHeadless) {
+		if (answers.factorioDir !== "factorio") {
+			throw new InstallError("--download-headless option requires --factorio-dir to be set to factorio");
+		}
+		await downloadLinuxServer();
+	}

 	if (!dev) {
 		await installClusterio(answers.mode, answers.plugins);
 	}

 	let adminToken = null;
-	if (["standalone", "master"].includes(answers.mode)) {
-		logger.info("Setting up master");
-		await execMaster(["bootstrap", "create-admin", answers.admin]);
-		let result = await execMaster(["bootstrap", "generate-user-token", answers.admin]);
+	if (["standalone", "controller"].includes(answers.mode)) {
+		logger.info("Setting up controller");
+		await execController(["bootstrap", "create-admin", answers.admin]);
+		await execController(["config", "set", "controller.http_port", answers.httpPort]);
+		let result = await execController(["bootstrap", "generate-user-token", answers.admin]);
 		adminToken = result.stdout.split("\n").slice(-2)[0];
 	}

 	if (answers.mode === "standalone") {
-		logger.info("Setting up slave");
-		await execSlave(["config", "set", "slave.name", "local"]);
+		logger.info("Setting up host");
+		await execHost(["config", "set", "host.name", "local"]);

-		let result = await execSlave(["config", "show", "slave.id"]);
-		let slaveId = Number.parseInt(result.stdout.split("\n").slice(-2)[0], 10);
+		let result = await execHost(["config", "show", "host.id"]);
+		let hostId = Number.parseInt(result.stdout.split("\n").slice(-2)[0], 10);

-		result = await execMaster(["bootstrap", "generate-slave-token", slaveId]);
-		let slaveToken = result.stdout.split("\n").slice(-2)[0];
+		result = await execController(["bootstrap", "generate-host-token", hostId]);
+		let hostToken = result.stdout.split("\n").slice(-2)[0];

-		await execSlave(["config", "set", "slave.master_token", slaveToken]);
-		await execSlave(["config", "set", "slave.public_address", answers.publicAddress]);
-		await execSlave(["config", "set", "slave.factorio_directory", answers.factorioDir]);
+		// Default to localhost on correct port for host in standalone mode
+		await execHost(["config", "set", "host.controller_url", `http://localhost:${answers.httpPort}/`]);
+		await execHost(["config", "set", "host.controller_token", hostToken]);
+		await execHost(["config", "set", "host.public_address", answers.publicAddress]);
+		await execHost(["config", "set", "host.factorio_directory", answers.factorioDir]);
 	}

-	if (answers.mode === "slave") {
-		logger.info("Setting up slave");
-		let slaveId = JSON.parse(Buffer.from(answers.masterToken.split(".")[1], "base64")).slave;
-		await execSlave(["config", "set", "slave.id", slaveId]);
-		await execSlave(["config", "set", "slave.name", answers.slaveName]);
-		await execSlave(["config", "set", "slave.master_url", answers.masterUrl]);
-		await execSlave(["config", "set", "slave.master_token", answers.masterToken]);
-		await execSlave(["config", "set", "slave.public_address", answers.publicAddress]);
-		await execSlave(["config", "set", "slave.factorio_directory", answers.factorioDir]);
+	if (answers.mode === "host") {
+		logger.info("Setting up host");
+		let hostId = JSON.parse(Buffer.from(answers.controllerToken.split(".")[1], "base64")).host;
+		await execHost(["config", "set", "host.id", hostId]);
+		await execHost(["config", "set", "host.name", answers.hostName]);
+		await execHost(["config", "set", "host.controller_url", answers.controllerUrl]);
+		await execHost(["config", "set", "host.controller_token", answers.controllerToken]);
+		await execHost(["config", "set", "host.public_address", answers.publicAddress]);
+		await execHost(["config", "set", "host.factorio_directory", answers.factorioDir]);
 	}

-	if (!dev && ["standalone", "master", "slave"].includes(answers.mode)) {
+	if (!dev && ["standalone", "controller", "host"].includes(answers.mode)) {
 		logger.info("Writing run scripts");
 		await writeScripts(answers.mode);
 	}

 	if (answers.mode === "ctl") {
-		await execCtl(["control-config", "set", "control.master_url", answers.masterUrl]);
-		await execCtl(["control-config", "set", "control.master_token", answers.masterToken]);
+		await execCtl(["control-config", "set", "control.controller_url", answers.controllerUrl]);
+		await execCtl(["control-config", "set", "control.controller_token", answers.controllerToken]);
 	}

 	/* eslint-disable no-console */
@@ -0,0 +1,62 @@
+"use strict";
+
+function escapeArg(arg) {
+	// When shell: true is used execFile does not escaping of arguments, they are
+	// simply joined by space and then passed to the shell.
+
+	// For Windows the command is cmd.exe /d /s /c "command arg arg ..."
+	// The parsing and escaping on windows is cursed. The following references are not for mortals:
+	// https://daviddeley.com/autohotkey/parameters/parameters.htm#WIN
+	// https://stackoverflow.com/a/4095133
+	// https://ss64.com/nt/syntax-esc.html
+	if (process.platform === "win32") {
+		if (!/[\t "%&<>\\^|]/.test(arg)) {
+			return arg;
+		}
+
+		const escaped = [];
+		let pos = 0;
+		while (pos < arg.length) {
+			if (arg[pos] === "\\") {
+				// If a backslash is followed by a quote or the end of the string, then
+				// double the number of backslashes because why not!
+				let peek = pos + 1;
+				while (peek !== arg.length && arg[peek] === "\\") {
+					peek += 1;
+				}
+				if (peek === arg.length || arg[peek] === '"') {
+					const count = peek - pos;
+					escaped.push("\\".repeat(count * 2));
+					pos = peek;
+					continue;
+				} else {
+					escaped.push("\\");
+				}
+			} else if (arg[pos] === '"') {
+				escaped.push('""');
+			} else if (arg[pos] === "%") {
+				// Expect a pct environment variable to contain %, because cmd does variable substitutions
+				// before parsing string quotes, and there's no mechanism for escaping % symbols, and this
+				// is a half sane workaround. The less sane workaround is to replace % with %%cd:~,%.
+				escaped.push("%pct%");
+			} else {
+				escaped.push(arg[pos]);
+			}
+			pos += 1;
+		}
+		return `"${escaped.join("")}"`;
+	}
+
+	// For all other platforms the command is /bin/sh -c <command arg arg ...>
+	// The command and its arguments are passed as a single argument to the shell.
+	// See https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_02
+	// eslint-disable-next-line no-lonely-if
+	if (!/[|&;<>()$`\\"' \t*?\[#~=%]/.test(arg)) {
+		return arg;
+	}
+	return `"${arg.replace(/[$`"\\]/g, "\\$&")}"`;
+}
+
+module.exports = {
+	escapeArg,
+};
@@ -1,28 +1,28 @@
 {
-  "name": "@clusterio/create",
-  "description": "Installer for clusterio",
-  "author": "Hornwitser",
-  "license": "MIT",
-  "version": "2.0.0-alpha.12",
-  "main": "create.js",
-  "bin": {
-    "clusteriocreate": "./create.js"
-  },
-  "keywords": [
-    "factorio",
-    "clusterio"
-  ],
-  "engines": {
-    "node": ">=12"
-  },
-  "dependencies": {
-    "chalk": "^4.1.0",
-    "fs-extra": "^8.1.0",
-    "inquirer": "^8.1.0",
-    "phin": "^3.5.1",
-    "yargs": "^14.2.0"
-  },
-  "publishConfig": {
-    "access": "public"
-  }
+	"name": "@clusterio/create",
+	"description": "Installer for clusterio",
+	"author": "Hornwitser",
+	"license": "MIT",
+	"version": "2.0.0-alpha.20",
+	"main": "create.js",
+	"bin": {
+		"clusteriocreate": "./create.js"
+	},
+	"keywords": [
+		"clusterio",
+		"factorio"
+	],
+	"engines": {
+		"node": ">=18"
+	},
+	"dependencies": {
+		"chalk": "^4.1.2",
+		"fs-extra": "^11.3.0",
+		"inquirer": "^8.2.4",
+		"phin": "^3.7.0",
+		"yargs": "^17.7.2"
+	},
+	"publishConfig": {
+		"access": "public"
+	}
 }
@@ -0,0 +1,194 @@
+"use strict";
+const { logger } = require("./logging");
+const fs = require("fs-extra");
+const path = require("path");
+
+async function copyTemplateFile(src, dst, properties) {
+	logger.verbose(`Writing ${dst} from template ${src}`);
+
+	// Closure, get the property value or throw
+	function getProperty(property) {
+		if (!properties.hasOwnProperty(property)) {
+			throw new Error(`Unknown property (${property}) found in template file ${src}`);
+		}
+
+		return properties[property];
+	}
+
+	// Closure, Get the boolean conjunction of a set of properties
+	function propertyConjunction(props) {
+		for (const property of props) {
+			if (property.startsWith("!")) {
+				if (Boolean(getProperty(property.slice(1)))) {
+					return false;
+				}
+			} else if (!Boolean(getProperty(property))) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	// Process the the template file
+	const badChars = /[\(\)-+/*<>=]/;
+	const templateData = await fs.readFile(src, "utf8");
+	const outputData = templateData
+		// match preprocessor comments: //%//
+		.replace(/^\/\/%\/\/.*\n/gm, "")
+		// match preprocessor insert: __property__
+		.replace(/__([a-zA-Z][a-zA-Z0-9_]*?[a-zA-Z0-9]?)__/gm, (_, property) => getProperty(property))
+		// match preprocessor conditionals: //%if <CONDITION> [// COMMENT]\n <CONTENT> \n//%endif [COMMENT]\n
+		.replace(/^\/\/%if ([^\n\/]*)(?:\/\/.*?)?\n((?:.|\n)*?)\/\/%endif.*\n/gm, (_, condition, content) => {
+			let include = false;
+			const conjunctions = condition.split("|");
+			for (const conjunct of conjunctions) {
+				if (badChars.test(conjunct)) {
+					throw new Error("Preprocessor condition can only contain logical operators" +
+						"such as & | or ! it can not have arithmetic, comparisons or parenthesis"
+					);
+				}
+
+				const property_names = conjunct.split("&").map(s => s.trim());
+				if (propertyConjunction(property_names)) {
+					include = true;
+					break;
+				}
+			}
+
+			return include ? content : "";
+		});
+
+	// Attempt to write the output file, warn if it already exists
+	try {
+		await fs.outputFile(dst, outputData, { flag: "wx" });
+	} catch (err) {
+		if (err.code === "EEXIST") {
+			logger.warn(`Could not create file ${dst} because it already exists`);
+		} else {
+			throw err;
+		}
+	}
+}
+
+async function copyPluginTemplates(pluginName, templates) {
+	logger.info(`Please wait, coping templates for ${templates.join(", ")}`);
+	const files = new Map();
+	const prepare = [];
+
+	// Some basic flags for selecting files to include
+	const javascriptOnly = templates.includes("js");
+	const config = !templates.includes("no_config") && templates.some(value => (
+		["controller", "host", "instance", "ctl"].includes(value)
+	));
+	const webpack = config || templates.includes("controller") || templates.includes("web");
+
+	// A count of the number of isolated contexts the plugin runs under
+	let pluginContexts = 0;
+
+	// Get the file extension and path to the templates
+	const ext = javascriptOnly ? "js" : "ts";
+	const templatePath = path.resolve(__dirname, javascriptOnly ? "./templates/plugin-js" : "./templates/plugin-ts");
+	const commonPath = path.resolve(__dirname, "./templates/common");
+
+	// Files included in all templates
+	files.set(".gitignore", path.join(commonPath, ".gitignore"));
+	files.set(".npmignore", path.join(commonPath, ".npmignore"));
+	files.set("package.json", path.join(commonPath, "package.json"));
+	files.set(`index.${ext}`, path.join(templatePath, `index.${ext}`));
+
+	// Files and dependencies to support typescript
+	if (!javascriptOnly) {
+		prepare.push("tsc --build");
+		files.set("tsconfig.json", path.join(templatePath, "tsconfig.json"));
+		files.set("tsconfig.node.json", path.join(templatePath, "tsconfig.node.json"));
+		if (webpack) {
+			files.set("tsconfig.browser.json", path.join(templatePath, "tsconfig.browser.json"));
+		}
+	}
+
+	// Files and dependences to support webpack
+	if (webpack) {
+		prepare.push("webpack-cli --env production");
+		files.set("webpack.config.js", path.join(commonPath, "webpack.config.js"));
+		if (templates.includes("web")) {
+			files.set(`web/index.${ext}x`, path.join(templatePath, `web/plugin.${ext}x`));
+			pluginContexts += 1;
+		} else {
+			files.set(`web/index.${ext}x`, path.join(templatePath, `web/no_plugin.${ext}x`));
+		}
+	}
+
+	// Files for the controller
+	if (templates.includes("controller")) {
+		files.set(`controller.${ext}`, path.join(templatePath, `controller.${ext}`));
+		pluginContexts += 1;
+	}
+
+	// Files for hosts
+	if (templates.includes("host")) {
+		files.set(`host.${ext}`, path.join(templatePath, `host.${ext}`));
+		pluginContexts += 1;
+	}
+
+	// Files for instances
+	if (templates.includes("instance")) {
+		files.set(`instance.${ext}`, path.join(templatePath, `instance.${ext}`));
+		pluginContexts += 1;
+	}
+
+	// Files for lua modules
+	if (templates.includes("module")) {
+		files.set(".luacheckrc", path.join(commonPath, ".luacheckrc"));
+		files.set("module/module.json", path.join(commonPath, "module/module.json"));
+		files.set("module/control.lua", path.join(commonPath, "module/control.lua"));
+		files.set("module/module_exports.lua", path.join(commonPath, "module/module_exports.lua"));
+		if (templates.includes("instance")) {
+			files.set("module/globals.lua", path.join(commonPath, "module/globals.lua"));
+		} else {
+			files.set(`instance.${ext}`, path.join(templatePath, `instance_empty.${ext}`));
+			pluginContexts += 1;
+		}
+	}
+
+	// Files for the control tool
+	if (templates.includes("ctl")) {
+		files.set(`ctl.${ext}`, path.join(templatePath, `ctl.${ext}`));
+		pluginContexts += 1;
+	}
+
+	// If there are more than one contexts then include the message file
+	if (pluginContexts > 1) {
+		files.set(`messages.${ext}`, path.join(templatePath, `messages.${ext}`));
+	}
+
+	// Properties that will control the replacements in the templates
+	const properties = {
+		config: config,
+		typescript: !javascriptOnly,
+		controller: templates.includes("controller"),
+		host: templates.includes("host"),
+		instance: templates.includes("instance"),
+		module: templates.includes("module"),
+		ctl: templates.includes("ctl"),
+		web: templates.includes("web"),
+		multi_context: pluginContexts > 1,
+		plugin_name: pluginName,
+		prepare: prepare.join(" && "),
+		ext: ext,
+	};
+
+	// Write all the template files
+	const writes = [];
+	for (let [dst, src] of files) {
+		writes.push(copyTemplateFile(src, dst, properties));
+	}
+
+	// Wait for writes to complete
+	await Promise.all(writes);
+	logger.info("Successfully wrote all template files");
+}
+
+module.exports = {
+	copyPluginTemplates,
+};
@@ -0,0 +1,3 @@
+dist/
+node_modules/
+package-lock.json
@@ -0,0 +1,3 @@
+webpack.config.js
+dist/web/build
+dist/browser
@@ -0,0 +1,79 @@
+local clusterio_api = require("modules/clusterio/api")
+local compat = require("modules/clusterio/compat")
+
+--- Top level module table, contains event handlers and public methods
+--- @class __plugin_name__
+local MyModule = {
+}
+
+--- script_data is 'synced' between players, you should use your plugin name to avoid name conflicts
+-- The following helper function is desync safe and avoids name conflicts after being called during on_server_startup
+-- There are edge cases in the following events: pre player left, player left, console command, and config changed
+-- If you use any of these events and access globalData then make sure to call this function first
+local script_data = {}
+local function setup_script_data()
+	if compat.script_data["__plugin_name__"] == nil then
+		compat.script_data["__plugin_name__"] = {
+			-- starting values go here
+		}
+	end
+	MyModule.on_load()
+end
+
+--- The on_load function is called independently for each client when they first load the map
+-- It should be used to restore global aliases and metatables not registered with script.register_metatable
+function MyModule.on_load()
+	script_data = compat.script_data["__plugin_name__"]
+end
+
+--- Public methods should be available though your top level module table
+function MyModule.foo()
+	game.print("foo")
+end
+
+--- Private methods should be local to the file, this will prevent others from calling it
+local function bar()
+	game.print("bar")
+end
+
+--- Clusterio provides a few custom events, on_server_startup is the most useful and should be used in place of on_init
+--- @param event EventData.on_server_startup
+local function on_server_startup(event)
+	setup_script_data()
+	game.print(compat.table_to_json(event))
+end
+
+--- Triggered every time a player crafts an item, see below for how handlers are registered
+--- @param event EventData.on_player_crafted_item
+local function on_player_crafted_item(event)
+	game.print(compat.table_to_json(event))
+//%if instance
+	local player = assert(game.get_player(event.player_index))
+	clusterio_api.send_json("__plugin_name__-plugin_example_ipc", {
+		tick = game.tick, player_name = player.name
+	})
+//%endif
+end
+
+--- Run bar every 5 seconds, see below for how handlers are registered
+local function on_nth_tick_300()
+	game.print(game.tick)
+	bar()
+end
+
+--- Factorio events are accessible through defines.events, you can have one handler per event per module
+local e = defines.events
+local events = {
+	[clusterio_api.events.on_server_startup] = on_server_startup,
+	[e.on_player_crafted_item] = on_player_crafted_item,
+}
+
+--- Nth tick is a special case that requires its own table, the index represents the time period between calls in ticks
+local on_nth_tick = {
+	[300] = on_nth_tick_300,
+}
+
+--- Always return the top level module table from control, this is how clusterio will access your event handlers
+MyModule.events = events --- @package
+MyModule.on_nth_tick = on_nth_tick --- @package
+return MyModule
@@ -0,0 +1,3 @@
+--- Expose any globals here, typically just your control file if you want to access it through rcon or commands
+-- luacheck: globals __plugin_name__
+__plugin_name__ = require("modules/__plugin_name__/control")
@@ -0,0 +1,14 @@
+{
+	"name": "__plugin_name__",
+	"load": [
+		"control.lua"
+	],
+	"require": [
+//%if instance
+		"globals.lua"
+//%endif
+	],
+	"dependencies": {
+		"clusterio": "*"
+	}
+}
@@ -0,0 +1,4 @@
+--- Can contain anything you want to allow other plugins to have access to, this example exposes the control file
+--- If you only export a single file then it may be better to rename that file to module_exports and save the redirection
+-- Access the exports from other modules using require("modules/__plugin_name__")
+return require("modules/__plugin_name__/control")
@@ -0,0 +1,54 @@
+{
+	"name": "__plugin_name__",
+	"version": "0.1.0",
+	"description": "Example Description. Package. Change me in package.json",
+//%if typescript
+	"main": "dist/node/index.js",
+//%endif
+//%if !typescript
+	"main": "index.js",
+//%endif
+	"scripts": {
+		"prepare": "__prepare__"
+	},
+	"engines": {
+		"node": ">=18"
+	},
+	"peerDependencies": {
+		"@clusterio/lib": "workspace:*"
+	},
+	"devDependencies": {
+//%// Typescript and type declarations
+//%if typescript
+		"typescript": "^5.5.3",
+		"@types/node": "^20.4.5",
+//%endif
+//%if typescript & web
+		"@types/react": "^18.2.21",
+//%endif
+//%// Everything else
+//%if web
+		"antd": "^5.13.0",
+		"react": "^18.2.0",
+		"react-dom": "^18.2.0",
+//%endif
+//%if web | controller // The controller uses webpack even when there is no plugin code
+		"webpack": "^5.88.2",
+		"webpack-cli": "^5.1.4",
+		"webpack-merge": "^5.9.0",
+		"@clusterio/web_ui": "workspace:*",
+//%endif
+		"@clusterio/lib": "workspace:*"
+	},
+	"dependencies": {
+		"@sinclair/typebox": "^0.30.4"
+	},
+	"publishConfig": {
+		"access": "public"
+	},
+	"keywords": [
+		"clusterio",
+		"clusterio-plugin",
+		"factorio"
+	]
+}
@@ -0,0 +1,36 @@
+"use strict";
+const path = require("path");
+const webpack = require("webpack");
+const { merge } = require("webpack-merge");
+
+const common = require("@clusterio/web_ui/webpack.common");
+
+module.exports = (env = {}) => merge(common(env), {
+	context: __dirname,
+	entry: "./web/index.__ext__x",
+	output: {
+		path: path.resolve(__dirname, "dist", "web"),
+	},
+	plugins: [
+		new webpack.container.ModuleFederationPlugin({
+			name: "__plugin_name__",
+			library: { type: "window", name: "plugin___plugin_name__" },
+			exposes: {
+				"./": "./index.__ext__",
+				"./package.json": "./package.json",
+//%if web
+				"./web": "./web/index.__ext__x",
+//%endif
+			},
+			shared: {
+				"@clusterio/lib": { import: false },
+				"@clusterio/web_ui": { import: false },
+//%if web
+				"antd": { import: false },
+				"react": { import: false },
+				"react-dom": { import: false },
+//%endif
+			},
+		}),
+	],
+});
@@ -0,0 +1,83 @@
+"use strict";
+const lib = require("@clusterio/lib");
+const { BaseControllerPlugin } = require("@clusterio/controller");
+//%if multi_context // Subscribing requires multi context
+
+const {
+	PluginExampleEvent, PluginExampleRequest,
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+	ExampleSubscribableUpdate, ExampleSubscribableValue,
+//%endif
+//%if multi_context // Subscribing requires multi context
+} = require("./messages");
+//%endif
+
+class ControllerPlugin extends BaseControllerPlugin {
+//%if controller & web // Subscribing requires web content and the controller
+	exampleDatabase;
+	storageDirty = false;
+
+//%endif
+//%if multi_context // Subscribing requires multi context
+	async init() {
+		this.controller.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.controller.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+		this.controller.subscriptions.handle(ExampleSubscribableUpdate, this.handleExampleSubscription.bind(this));
+		this.exampleDatabase = new Map(); // If needed, replace with loading from database file
+//%endif
+//%if multi_context // Subscribing requires multi context
+	}
+//%endif
+
+	async onControllerConfigFieldChanged(field, curr, prev) {
+		this.logger.info(`controller::onControllerConfigFieldChanged ${field}`);
+	}
+//%if instance
+
+	async onInstanceConfigFieldChanged(instance, field, curr, prev) {
+		this.logger.info(`controller::onInstanceConfigFieldChanged ${instance.id} ${field}`);
+	}
+//%endif
+
+	async onSaveData() {
+		this.logger.info("controller::onSaveData");
+	}
+
+	async onShutdown() {
+		this.logger.info("controller::onShutdown");
+	}
+
+	async onPlayerEvent(instance, event) {
+		this.logger.info(`controller::onPlayerEvent ${instance.id} ${JSON.stringify(event)}`);
+	}
+//%if multi_context
+
+	async handlePluginExampleEvent(event) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+
+	async handleExampleSubscription(request) {
+		const values = [...this.exampleDatabase.values()].filter(
+			value => value.updatedAtMs > request.lastRequestTimeMs,
+		);
+		return values.length ? new ExampleSubscribableUpdate(values) : null;
+	}
+//%endif
+}
+
+module.exports = {
+	ControllerPlugin,
+};
@@ -0,0 +1,32 @@
+"use strict";
+const { BaseCtlPlugin } = require("@clusterio/ctl");
+const { CommandTree, Command } = require("@clusterio/lib");
+//%// We do not check for multi context here because it doesn't make sense to have a ctl without messages
+const { PluginExampleEvent, PluginExampleRequest } = require("./messages");
+/* eslint-disable no-console */
+
+const pluginCommands = new CommandTree({
+	name: "__plugin_name__", description: "The default description I forgot to change",
+});
+
+pluginCommands.add(new Command({
+	definition: ["my-command <foo>", "My command description that I really should change", (yargs) => {
+		yargs.positional("foo", { describe: "foo is foo!", type: "string" });
+	}],
+	handler: async function(args, control) {
+		const response = await control.sendTo("controller", new PluginExampleRequest(args.foo, [1, 2, 3]));
+		console.log(response);
+		console.log(args);
+	},
+}));
+
+/* eslint-enable no-console */
+class CtlPlugin extends BaseCtlPlugin {
+	async addCommands(rootCommand) {
+		rootCommand.add(pluginCommands);
+	}
+}
+
+module.exports = {
+	CtlPlugin,
+};
@@ -0,0 +1,41 @@
+"use strict";
+const lib = require("@clusterio/lib");
+const { BaseHostPlugin } = require("@clusterio/host");
+//%if multi_context
+const { PluginExampleEvent, PluginExampleRequest } = require("./messages");
+//%endif
+
+class HostPlugin extends BaseHostPlugin {
+//%if multi_context
+	async init() {
+		this.host.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.host.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+	}
+//%endif
+
+	async onHostConfigFieldChanged(field, curr, prev) {
+		this.logger.info(`host::onInstanceConfigFieldChanged ${field}`);
+	}
+
+	async onShutdown() {
+		this.logger.info("host::onShutdown");
+	}
+//%if multi_context
+
+	async handlePluginExampleEvent(event) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+}
+
+module.exports = {
+	HostPlugin,
+};
@@ -0,0 +1,126 @@
+"use strict";
+const lib = require("@clusterio/lib");
+//%if multi_context
+const Messages = require("./messages");
+
+lib.definePermission({
+	name: "__plugin_name__.example.permission.event",
+	title: "Example permission event",
+	description: "Example Description. Event. Change me in index.js",
+});
+
+lib.definePermission({
+	name: "__plugin_name__.example.permission.request",
+	title: "Example permission request",
+	description: "Example Description. Request. Change me in index.js",
+});
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+
+lib.definePermission({
+	name: "__plugin_name__.example.permission.subscribe",
+	title: "Example permission subscribe",
+	description: "Example Description. Subscribe. Change me in index.js",
+});
+//%endif
+//%if web
+
+lib.definePermission({
+	name: "__plugin_name__.page.view",
+	title: "Example page view permission",
+	description: "Example Description. View. Change me in index.js",
+});
+//%endif
+
+const plugin = {
+	name: "__plugin_name__",
+	title: "__plugin_name__",
+	description: "Example Description. Plugin. Change me in index.js",
+//%if controller | host & !config | instance & !config | ctl & !config // Blank line for formatting
+
+//%endif
+//%if controller
+controllerEntrypoint: "./dist/node/controller",
+//%endif
+//%if controller & config
+	controllerConfigFields: {
+		"__plugin_name__.myControllerField": {
+			title: "My Controller Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if host & config // Blank line for formatting
+
+//%endif
+//%if host
+	hostEntrypoint: "./dist/node/host",
+//%endif
+//%if host & config
+	hostConfigFields: {
+		"__plugin_name__.myHostField": {
+			title: "My Host Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if instance & config | module & config // Blank line for formatting
+
+//%endif
+//%if instance | module // Modules load an empty instance plugin
+	instanceEntrypoint: "./dist/node/instance",
+//%endif
+//%if instance & config
+	instanceConfigFields: {
+		"__plugin_name__.myInstanceField": {
+			title: "My Instance Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if ctl & config // Blank line for formatting
+
+//%endif
+//%if ctl
+	ctlEntrypoint: "./dist/node/ctl",
+//%endif
+//%if ctl & config
+	controlConfigFields: {
+		"__plugin_name__.myControlField": {
+			title: "My Control Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if multi_context // Subscribing requires multi context
+
+	messages: [
+		Messages.PluginExampleEvent,
+		Messages.PluginExampleRequest,
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+		Messages.ExampleSubscribableUpdate,
+//%endif
+//%if multi_context // Subscribing requires multi context
+	],
+//%endif
+//%if web // Web content template has an example route which is the plugin name
+
+	webEntrypoint: "./web",
+	routes: [
+		"/__plugin_name__",
+	],
+//%endif
+};
+
+module.exports = {
+	plugin,
+};
@@ -0,0 +1,66 @@
+"use strict";
+const lib = require("@clusterio/lib");
+const { BaseInstancePlugin } = require("@clusterio/host");
+//%if multi_context
+const { PluginExampleEvent, PluginExampleRequest } = require("./messages");
+//%endif
+
+class InstancePlugin extends BaseInstancePlugin {
+//%if multi_context | module
+	async init() {
+//%if multi_context
+		this.instance.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.instance.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+//%endif
+//%if module
+		this.instance.server.handle("__plugin_name__-plugin_example_ipc", this.handlePluginExampleIPC.bind(this));
+//%endif
+//%if multi_context | module
+	}
+//%endif
+
+	async onInstanceConfigFieldChanged(field, curr, prev) {
+		this.logger.info(`instance::onInstanceConfigFieldChanged ${field}`);
+	}
+
+	async onStart() {
+		this.logger.info("instance::onStart");
+	}
+
+	async onStop() {
+		this.logger.info("instance::onStop");
+	}
+
+	async onPlayerEvent(event) {
+		this.logger.info(`onPlayerEvent::onPlayerEvent ${JSON.stringify(event)}`);
+//%if module
+		if (this.instance.status === "running") {
+			this.sendRcon("/sc __plugin_name__.foo()");
+		}
+//%endif
+	}
+//%if multi_context
+
+	async handlePluginExampleEvent(event) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+//%if module
+
+	async handlePluginExampleIPC(event) {
+		this.logger.info(JSON.stringify(event));
+	}
+//%endif
+}
+
+module.exports = {
+	InstancePlugin,
+};
@@ -0,0 +1,11 @@
+"use strict";
+const { BaseInstancePlugin } = require("@clusterio/host");
+
+class InstancePlugin extends BaseInstancePlugin {
+	// This class is empty because an instance plugin must be defined for a module to be injected
+	// This requirement may change in the future to allow for standalone modules
+}
+
+module.exports = {
+	InstancePlugin,
+};
@@ -0,0 +1,101 @@
+"use strict";
+const { plainJson, jsonArray, JsonBoolean, JsonNumber, JsonString, StringEnum } = require("@clusterio/lib");
+const { Type } = require("@sinclair/typebox");
+
+class PluginExampleEvent {
+	static type = "event";
+	static src = ["host", "control"];
+	static dst = ["controller", "host", "instance"];
+	static plugin = "__plugin_name__";
+	static permission = "__plugin_name__.example.permission.event";
+
+	constructor(myString, myNumberArray) {
+		this.myString = myString;
+		this.myNumberArray = myNumberArray;
+	}
+
+	static jsonSchema = Type.Object({
+		"myString": Type.String(),
+		"myNumberArray": Type.Array(Type.Number()),
+	});
+
+	static fromJSON(json) {
+		return new PluginExampleEvent(json.myString, json.myNumberArray);
+	}
+}
+
+class PluginExampleRequest {
+	static type = "request";
+	static src = ["host", "control"];
+	static dst = ["controller", "host", "instance"];
+	static plugin = "__plugin_name__";
+	static permission = "__plugin_name__.example.permission.request";
+
+	constructor(myString, myNumberArray) {
+		this.myString = myString;
+		this.myNumberArray = myNumberArray;
+	}
+
+	static jsonSchema = Type.Object({
+		"myString": Type.String(),
+		"myNumberArray": Type.Array(Type.Number()),
+	});
+
+	static fromJSON(json) {
+		return new PluginExampleRequest(json.myString, json.myNumberArray);
+	}
+
+	static Response = plainJson(Type.Object({
+		"myResponseString": Type.String(),
+		"myResponseNumbers": Type.Array(Type.Number()),
+	}));
+}
+//%if controller & web // Subscribing requires web content and the controller
+
+class ExampleSubscribableValue {
+	constructor(id, updatedAtMs, isDeleted) {
+		this.id = id;
+		this.updatedAtMs = updatedAtMs;
+		this.isDeleted = isDeleted;
+	}
+
+	static jsonSchema = Type.Object({
+		id: Type.String(),
+		updatedAtMs: Type.Number(),
+		isDeleted: Type.Boolean(),
+	});
+
+	static fromJSON(json) {
+		return new this(json.id, json.updatedAtMs, json.isDeleted);
+	}
+}
+
+class ExampleSubscribableUpdate {
+	static type = "event";
+	static src = "controller";
+	static dst = "control";
+	static plugin = "__plugin_name__";
+	static permission = "__plugin_name__.example.permission.subscribe";
+
+	constructor(updates) {
+		this.updates = updates;
+	}
+
+	static jsonSchema = Type.Object({
+		"updates": Type.Array(ExampleSubscribableValue.jsonSchema),
+	});
+
+	static fromJSON(json) {
+		return new this(json.updates.map(update => ExampleSubscribableValue.fromJSON(update)));
+	}
+}
+//%endif
+
+module.exports = {
+	PluginExampleEvent,
+	PluginExampleRequest,
+//%if controller & web // Subscribing requires web content and the controller
+	ExampleSubscribableValue,
+	ExampleSubscribableUpdate,
+//%endif
+};
@@ -0,0 +1,93 @@
+import React, {
+	useContext, useEffect, useState,
+//%if controller // Subscribing requires web content and the controller
+	useCallback, useSyncExternalStore,
+//%endif
+} from "react";
+
+// import {
+//
+// } from "antd";
+
+import {
+	BaseWebPlugin, PageLayout, PageHeader, Control, ControlContext, notifyErrorHandler,
+} from "@clusterio/web_ui";
+//%if multi_context // Subscribing requires multi context
+
+import {
+	PluginExampleEvent, PluginExampleRequest,
+//%endif
+//%if controller // Subscribing requires web content and the controller
+	ExampleSubscribableUpdate, ExampleSubscribableValue,
+//%endif
+//%if multi_context // Subscribing requires multi context
+} from "../messages";
+//%endif
+
+import * as lib from "@clusterio/lib";
+
+function MyTemplatePage() {
+	let control = useContext(ControlContext);
+//%if controller // Subscribing requires web content and the controller
+	const plugin = control.plugins.get("__plugin_name__");
+	const [subscribableData, synced] = plugin.useSubscribableData();
+//%endif
+
+	return <PageLayout nav={[{ name: "__plugin_name__" }]}>
+		<PageHeader title="__plugin_name__" />
+//%if controller // Subscribing requires web content and the controller
+		Synced: {String(synced)} Data: {JSON.stringify([...subscribableData.values()])}
+//%endif
+	</PageLayout>;
+}
+
+export class WebPlugin extends BaseWebPlugin {
+//%if controller // Subscribing requires web content and the controller
+	subscribableData = new lib.EventSubscriber(ExampleSubscribableUpdate, this.control);
+
+//%endif
+	async init() {
+		this.pages = [
+			{
+				path: "/__plugin_name__",
+				sidebarName: "__plugin_name__",
+				// This permission is client side only, so it must match the permission string of a resource request to be secure
+				// An undefined value means that the page will always be visible
+//%if controller // Subscribing requires web content and the controller
+				permission: "__plugin_name__.example.permission.subscribe",
+//%endif
+//%if !controller
+				permission: undefined, // "__plugin_name__.example.permission.request",
+//%endif
+				content: <MyTemplatePage/>,
+			},
+		];
+//%if multi_context
+
+		this.control.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.control.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+//%endif
+	}
+//%if controller// Subscribing requires web content and the controller
+
+	useSubscribableData() {
+		const control = useContext(ControlContext);
+		const subscribe = useCallback((callback) => this.subscribableData.subscribe(callback), [control]);
+		return useSyncExternalStore(subscribe, () => this.subscribableData.getSnapshot());
+	}
+//%endif
+//%if multi_context
+
+	async handlePluginExampleEvent(event) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+}
@@ -0,0 +1,78 @@
+import * as lib from "@clusterio/lib";
+import { BaseControllerPlugin, InstanceInfo } from "@clusterio/controller";
+//%if multi_context // Subscribing requires multi context
+
+import {
+	PluginExampleEvent, PluginExampleRequest,
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+	ExampleSubscribableUpdate, ExampleSubscribableValue,
+//%endif
+//%if multi_context // Subscribing requires multi context
+} from "./messages";
+//%endif
+
+export class ControllerPlugin extends BaseControllerPlugin {
+//%if controller & web // Subscribing requires web content and the controller
+	exampleDatabase!: Map<string, ExampleSubscribableValue>;
+	storageDirty = false;
+
+//%endif
+//%if multi_context // Subscribing requires multi context
+	async init() {
+		this.controller.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.controller.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+		this.controller.subscriptions.handle(ExampleSubscribableUpdate, this.handleExampleSubscription.bind(this));
+		this.exampleDatabase = new Map(); // If needed, replace with loading from database file
+//%endif
+//%if multi_context // Subscribing requires multi context
+	}
+//%endif
+
+	async onControllerConfigFieldChanged(field: string, curr: unknown, prev: unknown) {
+		this.logger.info(`controller::onControllerConfigFieldChanged ${field}`);
+	}
+//%if instance
+
+	async onInstanceConfigFieldChanged(instance: InstanceInfo, field: string, curr: unknown, prev: unknown) {
+		this.logger.info(`controller::onInstanceConfigFieldChanged ${instance.id} ${field}`);
+	}
+//%endif
+
+	async onSaveData() {
+		this.logger.info("controller::onSaveData");
+	}
+
+	async onShutdown() {
+		this.logger.info("controller::onShutdown");
+	}
+
+	async onPlayerEvent(instance: InstanceInfo, event: lib.PlayerEvent) {
+		this.logger.info(`controller::onPlayerEvent ${instance.id} ${JSON.stringify(event)}`);
+	}
+//%if multi_context
+
+	async handlePluginExampleEvent(event: PluginExampleEvent) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request: PluginExampleRequest) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+
+	async handleExampleSubscription(request: lib.SubscriptionRequest) {
+		const values = [...this.exampleDatabase.values()].filter(
+			value => value.updatedAtMs > request.lastRequestTimeMs,
+		);
+		return values.length ? new ExampleSubscribableUpdate(values) : null;
+	}
+//%endif
+}
@@ -0,0 +1,27 @@
+import { BaseCtlPlugin, type Control } from "@clusterio/ctl";
+import { CommandTree, Command } from "@clusterio/lib";
+//%// We do not check for multi context here because it doesn't make sense to have a ctl without messages
+import { PluginExampleEvent, PluginExampleRequest } from "./messages";
+/* eslint-disable no-console */
+
+const pluginCommands = new CommandTree({
+	name: "__plugin_name__", description: "The default description I forgot to change",
+});
+
+pluginCommands.add(new Command({
+	definition: ["my-command <foo>", "My command description that I really should change", (yargs) => {
+		yargs.positional("foo", { describe: "foo is foo!", type: "string" });
+	}],
+	handler: async function(args: { foo: string }, control: Control) {
+		const response = await control.sendTo("controller", new PluginExampleRequest(args.foo, [1, 2, 3]));
+		console.log(response);
+		console.log(args);
+	},
+}));
+
+/* eslint-enable no-console */
+export class CtlPlugin extends BaseCtlPlugin {
+	async addCommands(rootCommand: CommandTree) {
+		rootCommand.add(pluginCommands);
+	}
+}
@@ -0,0 +1,36 @@
+import * as lib from "@clusterio/lib";
+import { BaseHostPlugin } from "@clusterio/host";
+//%if multi_context
+import { PluginExampleEvent, PluginExampleRequest } from "./messages";
+//%endif
+
+export class HostPlugin extends BaseHostPlugin {
+//%if multi_context
+	async init() {
+		this.host.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.host.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+	}
+//%endif
+
+	async onHostConfigFieldChanged(field: string, curr: unknown, prev: unknown) {
+		this.logger.info(`host::onInstanceConfigFieldChanged ${field}`);
+	}
+
+	async onShutdown() {
+		this.logger.info("host::onShutdown");
+	}
+//%if multi_context
+
+	async handlePluginExampleEvent(event: PluginExampleEvent) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request: PluginExampleRequest) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+}
@@ -0,0 +1,149 @@
+import * as lib from "@clusterio/lib";
+//%if multi_context
+import * as Messages from "./messages";
+
+lib.definePermission({
+	name: "__plugin_name__.example.permission.event",
+	title: "Example permission event",
+	description: "Example Description. Event. Change me in index.ts",
+});
+
+lib.definePermission({
+	name: "__plugin_name__.example.permission.request",
+	title: "Example permission request",
+	description: "Example Description. Request. Change me in index.ts",
+});
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+
+lib.definePermission({
+	name: "__plugin_name__.example.permission.subscribe",
+	title: "Example permission subscribe",
+	description: "Example Description. Subscribe. Change me in index.ts",
+});
+//%endif
+//%if web
+
+lib.definePermission({
+	name: "__plugin_name__.page.view",
+	title: "Example page view permission",
+	description: "Example Description. View. Change me in index.ts",
+});
+//%endif
+//%if config
+
+declare module "@clusterio/lib" {
+//%endif
+//%if controller & config
+	export interface ControllerConfigFields {
+		"__plugin_name__.myControllerField": string;
+	}
+//%endif
+//%if host & config
+	export interface HostConfigFields {
+		"__plugin_name__.myHostField": string;
+	}
+//%endif
+//%if instance & config
+	export interface InstanceConfigFields {
+		"__plugin_name__.myInstanceField": string;
+	}
+//%endif
+//%if ctl & config
+	export interface ControlConfigFields {
+		"__plugin_name__.myControlField": string;
+	}
+//%endif
+//%if config
+}
+//%endif
+
+export const plugin: lib.PluginDeclaration = {
+	name: "__plugin_name__",
+	title: "__plugin_name__",
+	description: "Example Description. Plugin. Change me in index.ts",
+//%// There are a lot of statements here to make the formatting look good with and without 'config'
+//%if controller | host & !config | instance & !config | ctl & !config // Blank line for formatting
+
+//%endif
+//%if controller
+	controllerEntrypoint: "./dist/node/controller",
+//%endif
+//%if controller & config
+	controllerConfigFields: {
+		"__plugin_name__.myControllerField": {
+			title: "My Controller Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if host & config // Blank line for formatting
+
+//%endif
+//%if host
+	hostEntrypoint: "./dist/node/host",
+//%endif
+//%if host & config
+	hostConfigFields: {
+		"__plugin_name__.myHostField": {
+			title: "My Host Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if instance & config | module & config // Blank line for formatting
+
+//%endif
+//%if instance | module // Modules load an empty instance plugin
+	instanceEntrypoint: "./dist/node/instance",
+//%endif
+//%if instance & config
+	instanceConfigFields: {
+		"__plugin_name__.myInstanceField": {
+			title: "My Instance Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if ctl & config // Blank line for formatting
+
+//%endif
+//%if ctl
+	ctlEntrypoint: "./dist/node/ctl",
+//%endif
+//%if ctl & config
+	controlConfigFields: {
+		"__plugin_name__.myControlField": {
+			title: "My Control Field",
+			description: "This should be removed from index.js",
+			type: "string",
+			initialValue: "Remove Me",
+		},
+	},
+//%endif
+//%if multi_context // Subscribing requires multi context
+
+	messages: [
+		Messages.PluginExampleEvent,
+		Messages.PluginExampleRequest,
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+		Messages.ExampleSubscribableUpdate,
+//%endif
+//%if multi_context // Subscribing requires multi context
+	],
+//%endif
+//%if web // Web content template has an example route which is the plugin name
+
+	webEntrypoint: "./web",
+	routes: [
+		"/__plugin_name__",
+	],
+//%endif
+};
@@ -0,0 +1,69 @@
+import * as lib from "@clusterio/lib";
+import { BaseInstancePlugin } from "@clusterio/host";
+//%if multi_context
+import { PluginExampleEvent, PluginExampleRequest } from "./messages";
+//%endif
+//%if module
+
+type PuginExampleIPC = {
+	tick: number,
+	player_name: string,
+};
+//%endif
+
+export class InstancePlugin extends BaseInstancePlugin {
+//%if multi_context | module
+	async init() {
+//%endif
+//%if multi_context
+		this.instance.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.instance.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+//%endif
+//%if module
+		this.instance.server.handle("__plugin_name__-plugin_example_ipc", this.handlePluginExampleIPC.bind(this));
+//%endif
+//%if multi_context | module
+	}
+//%endif
+
+	async onInstanceConfigFieldChanged(field: string, curr: unknown, prev: unknown) {
+		this.logger.info(`instance::onInstanceConfigFieldChanged ${field}`);
+	}
+
+	async onStart() {
+		this.logger.info("instance::onStart");
+	}
+
+	async onStop() {
+		this.logger.info("instance::onStop");
+	}
+
+	async onPlayerEvent(event: lib.PlayerEvent) {
+		this.logger.info(`onPlayerEvent::onPlayerEvent ${JSON.stringify(event)}`);
+//%if module
+		if (this.instance.status === "running") {
+			this.sendRcon("/sc __plugin_name__.foo()");
+		}
+//%endif
+	}
+//%if multi_context
+
+	async handlePluginExampleEvent(event: PluginExampleEvent) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request: PluginExampleRequest) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+//%if module
+
+	async handlePluginExampleIPC(event: PuginExampleIPC) {
+		this.logger.info(JSON.stringify(event));
+	}
+//%endif
+}
@@ -0,0 +1,7 @@
+import * as lib from "@clusterio/lib";
+import { BaseInstancePlugin } from "@clusterio/host";
+
+export class InstancePlugin extends BaseInstancePlugin {
+	// This class is empty because an instance plugin must be defined for a module to be injected
+	// This requirement may change in the future to allow for standalone modules
+}
@@ -0,0 +1,97 @@
+import { plainJson, jsonArray, JsonBoolean, JsonNumber, JsonString, StringEnum } from "@clusterio/lib";
+import { Type, Static } from "@sinclair/typebox";
+
+export class PluginExampleEvent {
+	declare ["constructor"]: typeof PluginExampleEvent;
+	static type = "event" as const;
+	static src = ["host", "control"] as const;
+	static dst = ["controller", "host", "instance"] as const;
+	static plugin = "__plugin_name__" as const;
+	static permission = "__plugin_name__.example.permission.event";
+
+	constructor(
+		public myString: string,
+		public myNumberArray: number[],
+	) {
+	}
+
+	static jsonSchema = Type.Object({
+		"myString": Type.String(),
+		"myNumberArray": Type.Array(Type.Number()),
+	});
+
+	static fromJSON(json: Static<typeof PluginExampleEvent.jsonSchema>) {
+		return new PluginExampleEvent(json.myString, json.myNumberArray);
+	}
+}
+
+export class PluginExampleRequest {
+	declare ["constructor"]: typeof PluginExampleRequest;
+	static type = "request" as const;
+	static src = ["host", "control"] as const;
+	static dst = ["controller", "host", "instance"] as const;
+	static plugin = "__plugin_name__" as const;
+	static permission = "__plugin_name__.example.permission.request";
+
+	constructor(
+		public myString: string,
+		public myNumberArray: number[],
+	) {
+	}
+
+	static jsonSchema = Type.Object({
+		"myString": Type.String(),
+		"myNumberArray": Type.Array(Type.Number()),
+	});
+
+	static fromJSON(json: Static<typeof PluginExampleRequest.jsonSchema>) {
+		return new PluginExampleRequest(json.myString, json.myNumberArray);
+	}
+
+	static Response = plainJson(Type.Object({
+		"myResponseString": Type.String(),
+		"myResponseNumbers": Type.Array(Type.Number()),
+	}));
+}
+//%if controller & web // Subscribing requires web content and the controller
+
+export class ExampleSubscribableValue {
+	constructor(
+		public id: string,
+		public updatedAtMs: number,
+		public isDeleted: boolean,
+	) {
+	}
+
+	static jsonSchema = Type.Object({
+		id: Type.String(),
+		updatedAtMs: Type.Number(),
+		isDeleted: Type.Boolean(),
+	});
+
+	static fromJSON(json: Static<typeof this.jsonSchema>) {
+		return new this(json.id, json.updatedAtMs, json.isDeleted);
+	}
+}
+
+export class ExampleSubscribableUpdate {
+	declare ["constructor"]: typeof ExampleSubscribableUpdate;
+	static type = "event" as const;
+	static src = "controller" as const;
+	static dst = "control" as const;
+	static plugin = "__plugin_name__" as const;
+	static permission = "__plugin_name__.example.permission.subscribe";
+
+	constructor(
+		public updates: ExampleSubscribableValue[],
+	) { }
+
+	static jsonSchema = Type.Object({
+		"updates": Type.Array(ExampleSubscribableValue.jsonSchema),
+	});
+
+	static fromJSON(json: Static<typeof this.jsonSchema>) {
+		return new this(json.updates.map(update => ExampleSubscribableValue.fromJSON(update)));
+	}
+}
+//%endif
@@ -0,0 +1,8 @@
+{
+	"extends": "../../tsconfig.browser.json",
+	"references": [
+		{ "path": "../../packages/lib/tsconfig.browser.json" },
+		{ "path": "../../packages/web_ui/tsconfig.browser.json" },
+	],
+	"include": [ "web/**/*.tsx", "web/**/*.ts", "messages.ts", "package.json" ],
+}
@@ -0,0 +1,9 @@
+{
+	"files": [],
+	"references": [
+//%if web
+		{ "path": "./tsconfig.browser.json" },
+//%endif
+		{ "path": "./tsconfig.node.json" }
+	]
+}
@@ -0,0 +1,8 @@
+{
+	"extends": "../../tsconfig.node.json",
+	"references": [
+		{ "path": "../../packages/lib/tsconfig.node.json" },
+	],
+	"include": ["./**/*.ts"],
+	"exclude": ["test/*", "./dist/*"],
+}
@@ -0,0 +1,93 @@
+import React, {
+	useContext, useEffect, useState,
+//%if controller & web // Subscribing requires web content and the controller
+	useCallback, useSyncExternalStore,
+//%endif
+} from "react";
+
+// import {
+//
+// } from "antd";
+
+import {
+	BaseWebPlugin, PageLayout, PageHeader, Control, ControlContext, notifyErrorHandler,
+} from "@clusterio/web_ui";
+//%if multi_context // Subscribing requires multi context
+
+import {
+	PluginExampleEvent, PluginExampleRequest,
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+	ExampleSubscribableUpdate, ExampleSubscribableValue,
+//%endif
+//%if multi_context // Subscribing requires multi context
+} from "../messages";
+//%endif
+
+import * as lib from "@clusterio/lib";
+
+function MyTemplatePage() {
+	const control = useContext(ControlContext);
+//%if controller // Subscribing requires web content and the controller
+	const plugin = control.plugins.get("__plugin_name__") as WebPlugin;
+	const [subscribableData, synced] = plugin.useSubscribableData();
+//%endif
+
+	return <PageLayout nav={[{ name: "__plugin_name__" }]}>
+		<PageHeader title="__plugin_name__" />
+//%if controller // Subscribing requires web content and the controller
+		Synced: {String(synced)} Data: {JSON.stringify([...subscribableData.values()])}
+//%endif
+	</PageLayout>;
+}
+
+export class WebPlugin extends BaseWebPlugin {
+//%if controller // Subscribing requires web content and the controller
+	subscribableData = new lib.EventSubscriber(ExampleSubscribableUpdate, this.control);
+
+//%endif
+	async init() {
+		this.pages = [
+			{
+				path: "/__plugin_name__",
+				sidebarName: "__plugin_name__",
+				// This permission is client side only, so it must match the permission string of a resource request to be secure
+				// An undefined value means that the page will always be visible
+//%if controller // Subscribing requires web content and the controller
+				permission: "__plugin_name__.example.permission.subscribe",
+//%endif
+//%if !controller
+				permission: undefined, // "__plugin_name__.example.permission.request",
+//%endif
+				content: <MyTemplatePage/>,
+			},
+		];
+//%if multi_context
+
+		this.control.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
+		this.control.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
+//%endif
+	}
+//%if controller // Subscribing requires web content and the controller
+
+	useSubscribableData() {
+		const control = useContext(ControlContext);
+		const subscribe = useCallback((callback: () => void) => this.subscribableData.subscribe(callback), [control]);
+		return useSyncExternalStore(subscribe, () => this.subscribableData.getSnapshot());
+	}
+//%endif
+//%if multi_context
+
+	async handlePluginExampleEvent(event: PluginExampleEvent) {
+		this.logger.info(JSON.stringify(event));
+	}
+
+	async handlePluginExampleRequest(request: PluginExampleRequest) {
+		this.logger.info(JSON.stringify(request));
+		return {
+			myResponseString: request.myString,
+			myResponseNumbers: request.myNumberArray,
+		};
+	}
+//%endif
+}
@@ -0,0 +1,114 @@
+# Templates
+
+Create has the ability to create new plugins from templates to avoid needing to manually copy lots of boiler plate. This folder contains all those templates for both Javascript and Typescript plugins. These templates have custom preprocessor instructions that can be used to alter a template based on developer input, this syntax is described below.
+
+- [The Basics](#the-basics)
+- [Insert Instruction](#insert-instruction) (`__variable__`)
+- [Conditional Instruction](#conditional-instruction) (`//%if` `//%endif`)
+- [Available Variables](#available-variables)
+
+## The Basics
+
+All files can contain preprocessor instructions whether json, js, lua, or anything else. All instructions use the same syntax although it has been designed to work well with js and ts files.
+
+Except for the insert instruction, all preprocessors use a `//%` prefix and must be on their own line. These lines are never included in the output. Parsing is stopped when `//` is encountered to allow for comments on preprocessors. Eg. `//%if foo // this is a comment`.
+
+Empty instructions, aka just comments, can be inserted into templates using `//%//` and are not included in the output file.
+
+`templates/plugin-js` contains all the files which will be used by a javascript only plugin.
+`templates/plugin-ts` contains all the files which will be used by a plugin that supports typescript.
+`templates/common` contains files used by both types of plugins, this is mostly lua code or root files like `package.json`
+
+Files are not copied via wildcards and instead are explicitly listed within `template.js` so any new templates will need to be added there.
+
+## Insert Instruction
+
+There are a number of template variables available to be inserted into templates. All variables are raw string values, that is they are inserted directly into the output file without any modifications. To signify a place to insert a variable you need only surround its identifier with double underscores, examples below.
+
+Example Variables:
+
+```sh
+my_number=1
+my_string=foo
+my_property=bar: "baz"
+```
+
+Example Template:
+
+```ts
+const __my_string__: number = __my_number__;
+console.log(__my_string__);
+
+console.log({
+    foo: "Hello, __my_string__!",
+    __my_property__,
+    my_property: __my_string__,
+});
+```
+
+Example Output:
+
+```ts
+const foo: number = 1;
+console.log(foo);
+
+console.log({
+    foo: "Hello, foo!",
+    bar: "baz",
+    my_property: foo,
+});
+```
+
+## Conditional Instruction
+
+Conditionals allow for code to be included/omitted based on the value of template variables. Currently only boolean logic in [disjunctive normal form](https://en.wikipedia.org/wiki/Disjunctive_normal_form) is supported and any variables that are not booleans are evaluated with the [Boolean constructor](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean).
+
+Variables used in condition statements do not require double underscores. Their values can be inverted using `!`. Arithmetic and comparison operations are not supported. Parentheses are also not supported, conditions must be in DNF.
+
+Conversion to DNF:
+`A & (B | !C)` -> `A & B | A & !C` evaluated as `(A and B) or (A and not C)`
+
+Example Variables:
+
+```sh
+my_string=foo
+say_hello=true
+say_done=true
+verbose=false
+```
+
+Example Template:
+
+```ts
+//%if verbose
+console.log("Starting...");
+//%endif
+//%if say_hello & my_string
+console.log("Hello, __my_string__!");
+//%endif
+//%if say_done | verbose
+console.log("Done.");
+//%endif
+```
+
+Example Output:
+
+```ts
+console.log("Hello, foo!");
+console.log("Done.");
+```
+
+## Available Variables
+
+| Identifier | Example | Description |
+| - | - | - |
+| typescript | `true` / `false` | `true` if typescript templates are included |
+| controller | `true` / `false` | `true` if controller templates are included |
+| host | `true` / `false` | `true` if host templates are included |
+| instance | `true` / `false` | `true` if instance templates are included |
+| module | `true` / `false` | `true` if module templates are included |
+| ctl | `true` / `false` | `true` if control templates are included |
+| web | `true` / `false` | `true` if web templates are included |
+| plugin_name | `my_plugin` | name of the plugin |
+| prepare | `tsc --build` | commands to run for the prepare script |
+| ext | `ts` / `js` | file extension of source files |