Bump CC:T to 1.103.0

- Bump Cobalt to 0.6.0. We now track both line and column numbers of
   each bytecode instruction, allowing us to map an error to a concrete
   position.

 - `loadfile` (and similar functions) now use the full path, rather than
   the file name. Cobalt truncates this to 30 characters (rather than
   the previous 60) so this should be less noisy.

 - The shell, edit and Lua REPL now display the corresponding source
   code alongside an error.

   Note this is incredibly limited right now - it won't cope with errors
   which cross coroutine boundaries. Supporting this is on the roadmap,
   but requires some careful API design.

.editorconfig

@@ -8,8 +8,22 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
+ij_continuation_indent_size = 4
+ij_any_do_while_brace_force = if_multiline
+ij_any_if_brace_force = if_multiline
+ij_any_for_brace_force = if_multiline
+ij_any_spaces_within_array_initializer_braces = true
+
+ij_kotlin_allow_trailing_comma = true
+ij_kotlin_allow_trailing_comma_on_call_site = true
+ij_kotlin_method_parameters_wrap = off
+ij_kotlin_call_parameters_wrap = off
+
 [*.md]
 trim_trailing_whitespace = false
 
-[*.properties]
-insert_final_newline = false
+[*.sexp]
+indent_size = 2
+
+[*.yml]
+indent_size = 2

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# Reformat everything
+f478c4ffc4fb9fc2200ec9b0bc751d047057ce81

.gitattributes

@@ -0,0 +1,16 @@
+# Ignore changes in generated files
+projects/*/src/generated/** linguist-generated
+projects/common/src/testMod/resources/data/cctest/structures/* linguist-generated
+
+* text=auto
+
+*.gradle eol=lf diff=java
+*.java   eol=lf diff=java
+*.kt     eol=lf diff=java
+*.lua    eol=lf
+*.md     eol=lf diff=markdown
+*.txt    eol=lf
+
+*.png binary
+*.jar binary
+*.dfpwm binary

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,15 +0,0 @@
----
-name: Bug report
-about: Report some misbehaviour in the mod
-labels: bug
----
-
-<!--
-## Before reporting
- - Search for the bug on the issue tracker. Make sure to look at closed issues too!
--->
-
-## Useful information to include:
- - Minecraft version
- - CC: Tweaked version
- - Detailed reproduction steps: sometimes I can spot a bug pretty easily, but often it's much more obscure. The more information I have to help reproduce it, the quicker it'll get fixed.

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -0,0 +1,34 @@
+name: Bug report
+description: Report some misbehaviour in the mod
+labels: [ bug ]
+body:
+- type: dropdown
+  id: mc-version
+  attributes:
+    label: Minecraft Version
+    description: What version of Minecraft are you using?
+    options:
+      - 1.16.x
+      - 1.18.x
+      - 1.19.x
+  validations:
+    required: true
+- type: input
+  id: version
+  attributes:
+    label: Version
+    description: "What version of CC: Tweaked are you using?"
+    placeholder: "e.g. 1.96.0"
+  validations:
+    required: true
+- type: textarea
+  id: details
+  attributes:
+    label: Details
+    description: |
+      Description of the bug. Please include the following:
+      - Logs: These will be located in the `logs/` directory of your Minecraft
+        instance. Please upload them as a gist or directly into this editor.
+      - Detailed reproduction steps: sometimes I can spot a bug pretty easily,
+        but often it's much more obscure. The more information I have to help
+        reproduce it, the quicker it'll get fixed.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+- name: GitHub Discussions
+  url: https://github.com/cc-tweaked/CC-Tweaked/discussions
+  about: Ask questions on GitHub Discussions.

.github/ISSUE_TEMPLATE/something_else.md

@@ -0,0 +1,4 @@
+---
+name: Something else
+about: An issue about something else.
+---

.github/matchers/checkstyle.json

@@ -0,0 +1,17 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "checkstyle",
+            "pattern": [
+                {
+                    "regexp": "^([a-z]+) ([\\w./-]+):(\\d+):(\\d+): (.*)$",
+                    "severity": 1,
+                    "file": 2,
+                    "line": 3,
+                    "column": 4,
+                    "message": 5
+                }
+            ]
+        }
+    ]
+}

.github/matchers/illuaminate.json

@@ -0,0 +1,18 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "illuaminate",
+            "severity": "warning",
+            "pattern": [
+                {
+                    "regexp": "^([\\w./-]+):\\[(\\d+):(\\d+)\\-(?:\\d+):(?:\\d+)\\]: (.*) \\[([a-z:-]+)\\]$",
+                    "file": 1,
+                    "line": 2,
+                    "column": 3,
+                    "message": 4,
+                    "code": 5
+                }
+            ]
+        }
+    ]
+}

.github/matchers/junit.json

@@ -0,0 +1,15 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "junit",
+            "pattern": [
+                {
+                    "regexp": "^## ([\\w./-]+):(\\d+): (.*)$",
+                    "file": 1,
+                    "line": 2,
+                    "message": 3
+                }
+            ]
+        }
+    ]
+}

.github/workflows/main-ci.yml

@@ -0,0 +1,98 @@
+name: Build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v3
+
+    - name: Set up Java
+      uses: actions/setup-java@v3
+      with:
+        java-version: 17
+        distribution: 'temurin'
+
+    - name: Setup Gradle
+      uses: gradle/gradle-build-action@v2
+      with:
+        cache-read-only: ${{ !startsWith(github.ref, 'refs/heads/mc-') }}
+
+    - name: Disable Gradle daemon
+      run: |
+        mkdir -p ~/.gradle
+        echo "org.gradle.daemon=false" >> ~/.gradle/gradle.properties
+
+    - name: Build with Gradle
+      run: |
+        ./gradlew assemble || ./gradlew assemble
+        ./gradlew downloadAssets || ./gradlew downloadAssets
+        ./gradlew build
+
+    - name: Run client tests
+      run: ./gradlew runGametestClient # Not checkClient, as no point running rendering tests.
+      # These are a little flaky on GH actions: its useful to run them, but don't break the build.
+      continue-on-error: true
+
+    - name: Prepare Jars
+      run: |
+        # Find the main jar and append the git hash onto it.
+        mkdir -p jars
+        find projects/forge/build/libs projects/fabric/build/libs -type f -regex '.*[0-9.]+\(-SNAPSHOT\)?\.jar$' -exec bash -c 'cp {} "jars/$(basename {} .jar)-$(git rev-parse HEAD).jar"' \;
+
+    - name: Upload Jar
+      uses: actions/upload-artifact@v3
+      with:
+        name: CC-Tweaked
+        path: ./jars
+
+    - name: Upload coverage
+      uses: codecov/codecov-action@v3
+
+    - name: Parse test reports
+      run: ./tools/parse-reports.py
+      if: ${{ failure() }}
+
+    - name: Run linters
+      uses: pre-commit/action@v3.0.0
+
+  build-core:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - name: Windows
+          uses: windows-latest
+
+        - name: macOS
+          uses: macos-latest
+
+    name: Test on ${{ matrix.name }}
+    runs-on: ${{ matrix.uses }}
+
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v3
+
+    - name: Set up Java
+      uses: actions/setup-java@v3
+      with:
+        java-version: 17
+        distribution: 'temurin'
+
+    - name: Setup Gradle
+      uses: gradle/gradle-build-action@v2
+      with:
+        cache-read-only: ${{ !startsWith(github.ref, 'refs/heads/mc-') }}
+
+    - name: Run tests
+      run: |
+        ./gradlew --configure-on-demand :core:test
+
+    - name: Parse test reports
+      run: python3 ./tools/parse-reports.py
+      if: ${{ failure() }}

.github/workflows/make-doc.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+set -eu
+
+DEST="${GITHUB_REF#refs/*/}"
+echo "Uploading docs to https://tweaked.cc/$DEST"
+
+# Setup ssh key
+mkdir -p "$HOME/.ssh/"
+echo "$SSH_KEY" > "$HOME/.ssh/key"
+chmod 600 "$HOME/.ssh/key"
+
+# And upload
+rsync -avc -e "ssh -i $HOME/.ssh/key -o StrictHostKeyChecking=no -p $SSH_PORT" \
+      "$GITHUB_WORKSPACE/projects/web/build/site/" \
+      "$SSH_USER@$SSH_HOST:/$DEST"
+rsync -avc -e "ssh -i $HOME/.ssh/key -o StrictHostKeyChecking=no -p $SSH_PORT" \
+      "$GITHUB_WORKSPACE/projects/common-api/build/docs/javadoc/" \
+      "$SSH_USER@$SSH_HOST:/$DEST/javadoc"

.github/workflows/make-doc.yml

@@ -0,0 +1,40 @@
+name: Build documentation
+
+on:
+  push:
+    branches:
+    - mc-1.19.x
+
+jobs:
+  make_doc:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v3
+
+    - name: Set up Java
+      uses: actions/setup-java@v1
+      with:
+        java-version: 17
+        distribution: 'temurin'
+
+    - name: Setup Gradle
+      uses: gradle/gradle-build-action@v2
+      with:
+        cache-read-only: ${{ !startsWith(github.ref, 'refs/heads/mc-') }}
+
+    - name: Build with Gradle
+      run: ./gradlew compileJava --no-daemon || ./gradlew compileJava --no-daemon
+
+    - name: Generate documentation
+      run: ./gradlew docWebsite :common-api:javadoc  --no-daemon
+
+    - name: Upload documentation
+      run: .github/workflows/make-doc.sh 2> /dev/null
+      env:
+        SSH_KEY:  ${{ secrets.SSH_KEY  }}
+        SSH_USER: ${{ secrets.SSH_USER }}
+        SSH_HOST: ${{ secrets.SSH_HOST }}
+        SSH_PORT: ${{ secrets.SSH_PORT }}

.gitignore

@@ -2,12 +2,17 @@
 /classes
 /logs
 /build
+/projects/*/logs
+/projects/*/build
+/buildSrc/build
 /out
+/doc/out/
+/node_modules
+.jqwik-database
 
 # Runtime directories
 /run
-/run-*
-/test-files
+/projects/*/run
 
 *.ipr
 *.iws
@@ -15,3 +20,11 @@
 .idea
 .gradle
 *.DS_Store
+
+/.classpath
+/.project
+/.settings
+/.vscode
+*.launch
+
+/projects/*/src/generated/resources/.cache

.gitpod.yml

@@ -0,0 +1,22 @@
+image:
+  file: config/gitpod/Dockerfile
+
+ports:
+  - port: 25565
+    onOpen: notify
+
+vscode:
+  extensions:
+    - eamodio.gitlens
+    - github.vscode-pull-request-github
+    - ms-azuretools.vscode-docker
+    - redhat.java
+    - richardwillis.vscode-gradle
+    - vscjava.vscode-java-debug
+    - vscode.github
+
+tasks:
+  - name: Setup pre-commit hool
+    init: pre-commit install --allow-missing-config
+  - name: Install npm packages
+    init: npm ci

.luacheckrc

@@ -1,34 +0,0 @@
-std = "max"
-
-ignore = {
-    -- Allow access to undefined globals or their fields. In the future we'll
-    -- define all of CC's globals within this file
-    '113', '143',
-
-    -- FIXME: Ignore unused arguments and loop variables
-    '212', '213',
-
-    -- Disable line is too long for now. It would be possible to clean
-    -- this up in the future.
-    '631',
-}
-
--- Only run the linter on ROM and bios for now, as the treasure disks
--- are largely unsupported.
-include_files = {
-    'src/main/resources/assets/computercraft/lua/rom',
-    'src/main/resources/assets/computercraft/lua/bios.lua'
-}
-
-files['src/main/resources/assets/computercraft/lua/bios.lua'] = {
-    -- Allow declaring and mutating globals
-    allow_defined_top = true,
-    ignore = { '112', '121', '122', '131', '142' },
-}
-
-files['src/main/resources/assets/computercraft/lua/rom/apis'] = {
-    -- APIs may define globals on the top level. We'll ignore unused globals,
-    -- as obviously they may be used outside that API.
-    allow_defined_top = true,
-    ignore = { '131' },
-}

.pre-commit-config.yaml

@@ -0,0 +1,54 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.0.1
+  hooks:
+  - id: trailing-whitespace
+  - id: end-of-file-fixer
+  - id: check-merge-conflict
+
+  # Quick syntax checkers
+  - id: check-xml
+  - id: check-yaml
+  - id: check-toml
+  - id: check-json
+    exclude: "tsconfig\\.json$"
+
+- repo: https://github.com/editorconfig-checker/editorconfig-checker.python
+  rev: 2.3.54
+  hooks:
+  - id: editorconfig-checker
+    args: ['-disable-indentation']
+    exclude: "^(.*\\.(bat)|LICENSE)$"
+
+- repo: local
+  hooks:
+  - id: license
+    name: Spotless
+    files: ".*\\.(java|kt|kts)$"
+    language: system
+    entry: ./gradlew spotlessApply
+    pass_filenames: false
+    require_serial: true
+  - id: checkstyle
+    name: Check Java codestyle
+    files: ".*\\.java$"
+    language: system
+    entry: ./gradlew checkstyleMain checkstyleTest
+    pass_filenames: false
+    require_serial: true
+  - id: illuaminate
+    name: Check Lua code
+    files: ".*\\.(lua|java|md)"
+    language: system
+    entry: ./gradlew lintLua
+    pass_filenames: false
+    require_serial: true
+
+exclude: |
+  (?x)^(
+    projects/[a-z]+/src/generated|
+    projects/core/src/test/resources/test-rom/data/json-parsing/|
+    .*\.dfpwm
+  )

.travis.yml

@@ -1,14 +0,0 @@
-language: java
-
-script: ./gradlew build --no-daemon
-
-before_cache:
-  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
-  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
-cache:
-  directories:
-    - $HOME/.gradle/caches/
-    - $HOME/.gradle/wrapper/s
-
-jdk:
-    - oraclejdk8

CODE_OF_CONDUCT.md

@@ -0,0 +1,133 @@
+
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, caste, color, religion, or sexual
+identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the overall
+  community
+
+Examples of unacceptable behavior include:
+
+* The use of sexualized language or imagery, and sexual attention or advances of
+  any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email address,
+  without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community leaders responsible for enforcement at
+"conduct AT squiddev DOT cc". All complaints will be reviewed and investigated
+promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series of
+actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or permanent
+ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior, harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within the
+community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.1, available at
+[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
+
+Community Impact Guidelines were inspired by
+[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
+
+For answers to common questions about this code of conduct, see the FAQ at
+[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
+[https://www.contributor-covenant.org/translations][translations].
+
+[homepage]: https://www.contributor-covenant.org
+[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
+[Mozilla CoC]: https://github.com/mozilla/diversity
+[FAQ]: https://www.contributor-covenant.org/faq
+[translations]: https://www.contributor-covenant.org/translations

CONTRIBUTING.md

@@ -0,0 +1,105 @@
+# Contributing to CC: Tweaked
+As with many open source projects, CC: Tweaked thrives on contributions from other people! This document (hopefully)
+provides an introduction as to how to get started in helping out.
+
+If you've any other questions, [just ask the community][community] or [open an issue][new-issue].
+
+## Table of Contents
+ - [Reporting issues](#reporting-issues)
+ - [Translations](#translations)
+ - [Setting up a development environment](#setting-up-a-development-environment)
+ - [Developing CC: Tweaked](#developing-cc-tweaked)
+ - [Writing documentation](#writing-documentation)
+
+## Reporting issues
+If you have a bug, suggestion, or other feedback, the best thing to do is [file an issue][new-issue]. When doing so, do
+use the issue templates - they provide a useful hint on what information to provide.
+
+## Translations
+Translations are managed through [Weblate], an online interface for managing language strings. This is synced
+automatically with GitHub, so please don't submit PRs adding/changing translations!
+
+## Setting up a development environment
+In order to develop CC: Tweaked, you'll need to download the source code and then run it.
+
+ - Make sure you've got the following software instealled:
+   - Java Development Kit (JDK) installed. This can be downloaded from [Adoptium].
+   - [Git](https://git-scm.com/).
+   - If you want to work on documentation, [NodeJS][node].
+
+ - Download CC: Tweaked's source code:
+   ```
+   git clone https://github.com/cc-tweaked/CC-Tweaked.git
+   cd CC-Tweaked
+   ```
+
+ - Build CC: Tweaked with `./gradlew build`. This will be very slow the first time it runs, as it needs to download a
+   lot of dependencies (and decompile Minecraft several times). Subsequent runs should be much faster!
+
+ - You're now ready to start developing CC: Tweaked. Running `./gradlew :forge:runClient` or
+   `./gradle :fabric:runClient` will start Minecraft under Forge and Fabric respectively.
+
+If you want to run CC:T in a normal Minecraft instance, run `./gradlew assemble` and copy the `.jar` from
+`projects/forge/build/libs` (for Forge) or `projects/fabric/build/libs` (for Fabric).
+
+## Developing CC: Tweaked
+Before making any major changes to CC: Tweaked, I'd recommend you have a read of the [the architecture
+document][architecture] first. While it's not a comprehensive document, it gives a good hint of where you should start
+looking to make your changes. As always, if you're not sure [do ask the community][community]!
+
+### Testing
+When making larger changes, it's may be useful to write a test to make sure your code works as expected.
+
+CC: Tweaked has several test suites, each designed to test something different:
+
+ - In order to test CraftOS and its builtin APIs, we have a test suite written in Lua located at
+   `projects/core/src/test/resources/test-rom/`. These don't rely on any Minecraft code, which means they can run on
+   emulators, acting as a sort of compliance test.
+
+   These tests are written using a test system called "mcfly", heavily inspired by [busted]. Groups of tests go inside
+   `describe` blocks, and a single test goes inside `it`. Assertions are generally written using `expect` (inspired by
+   Hamcrest and the like). For instance, `expect(foo):eq("bar")` asserts that your variable `foo` is equal to the
+   expected value `"bar"`.
+
+   These tests can be run with `./gradlew :core:test`.
+
+ - In-game functionality, such as the behaviour of blocks and items, is tested using [Minecraft's gametest
+   system][mc-test] (`projects/common/src/testMod`). These tests spin up a server, spawn a structure for each test, and
+   then run some code on the blocks defined in that structure.
+
+   These tests can be run with `./gradlew runGametest` (or `./gradle :forge:runGametest`/`./gradlew :fabric:runGametest`
+   for a single loader).
+
+For more information, [see the architecture document][architecture].
+
+## Writing documentation
+When writing documentation for [CC: Tweaked's documentation website][docs], it may be useful to build the documentation
+and preview it yourself before submitting a PR.
+
+You'll first need to [set up a development environment as above](#setting-up-a-development-environment).
+
+Once this is set up, you can now run `./gradlew docWebsite`. This generates documentation from our Lua and Java code,
+writing the resulting HTML into `./projects/web/build/site`, which can then be opened in a browser. When iterating on
+documentation, you can instead run `./gradlew docWebsite -t`, which will rebuild documentation every time you change a
+file.
+
+Documentation is built using [illuaminate] which, while not currently documented (somewhat ironic), is largely the same
+as [ldoc][ldoc]. Documentation comments are written in Markdown, though note that we do not support many GitHub-specific
+markdown features - if you can, do check what the documentation looks like locally!
+
+When writing long-form documentation (such as the guides in [doc/guides](doc/guides)), I find it useful to tell a
+narrative. Think of what you want the user to learn or achieve, then start introducing a simple concept and then talk
+about how you can build on that, until you've covered everything!
+
+[new-issue]: https://github.com/cc-tweaked/CC-Tweaked/issues/new/choose "Create a new issue"
+[community]: README.md#community "Get in touch with the community."
+[Adoptium]: https://adoptium.net/temurin/releases?version=17 "Download OpenJDK 17"
+[checkstyle]: https://checkstyle.org/
+[illuaminate]: https://github.com/SquidDev/illuaminate/ "Illuaminate on GitHub"
+[weblate]: https://i18n.tweaked.cc/projects/cc-tweaked/minecraft/ "CC: Tweaked weblate instance"
+[docs]: https://tweaked.cc/ "CC: Tweaked documentation"
+[ldoc]: http://stevedonovan.github.io/ldoc/ "ldoc, a Lua documentation generator."
+[mc-test]: https://www.youtube.com/watch?v=vXaWOJTCYNg
+[busted]: https://github.com/Olivine-Labs/busted "busted: Elegant Lua unit testing."
+[node]: https://nodejs.org/en/ "Node.js"
+[architecture]: projects/ARCHITECTURE.md

LICENSE

@@ -19,14 +19,14 @@ Mod: The mod code designated by the present license, in source form, binary
 form, as obtained standalone, as part of a wider distribution or resulting from
 the compilation of the original or modified sources.
 
-Dependency: Code required for the mod to work properly. This includes 
+Dependency: Code required for the mod to work properly. This includes
 dependencies required to compile the code as well as any file or modification
 that is explicitly or implicitly required for the mod to be working.
 
 1. Scope
 --------
 
-The present license is granted to any user of the mod. As a prerequisite, 
+The present license is granted to any user of the mod. As a prerequisite,
 a user must own a legally acquired copy of Minecraft
 
 2. Liability
@@ -41,13 +41,13 @@ or misuse of this mod fall on the user.
 3. Play rights
 --------------
 
-The user is allowed to install this mod on a Minecraft client or server and to play 
+The user is allowed to install this mod on a Minecraft client or server and to play
 without restriction.
 
 4. Modification rights
 ----------------------
 
-The user has the right to decompile the source code, look at either the 
+The user has the right to decompile the source code, look at either the
 decompiled version or the original source code, and to modify it.
 
 5. Distribution of original or modified copy rights
@@ -61,10 +61,10 @@ include:
    - patch to its source or binary files
    - any copy of a portion of its binary source files
 
-The user is allowed to redistribute this mod partially, in totality, or 
+The user is allowed to redistribute this mod partially, in totality, or
 included in a distribution.
 
-When distributing binary files, the user must provide means to obtain its 
+When distributing binary files, the user must provide means to obtain its
 entire set of sources or modified sources at no cost.
 
 All distributions of this mod must remain licensed under the CCPL.
@@ -92,7 +92,7 @@ must be made available at no cost and remain licensed under the CCPL.
 ---------------
 
 If you choose to contribute code or assets to be included in this mod, you
-agree that, if added to to the main repository at 
+agree that, if added to to the main repository at
 https://github.com/dan200/ComputerCraft, your contributions will be covered by
 this license, and that Daniel Ratcliffe will retain the right to re-license the
 mod, including your contributions, in part or in whole, under other licenses.

README.md

@@ -1,75 +1,66 @@
-# ![CC: Tweaked](logo.png)
-[![Current build status](https://travis-ci.org/SquidDev-CC/CC-Tweaked.svg?branch=master)](https://travis-ci.org/SquidDev-CC/CC-Tweaked "Current build status") [![Download CC: Tweaked on CurseForge](https://cf.way2muchnoise.eu/title/cc-tweaked.svg)](https://minecraft.curseforge.com/projects/cc-tweaked "Download CC: Tweaked on CurseForge")
+# ![CC: Tweaked](doc/logo.png)
+[![Current build status](https://github.com/cc-tweaked/CC-Tweaked/workflows/Build/badge.svg)](https://github.com/cc-tweaked/CC-Tweaked/actions "Current build status") [![Download CC: Tweaked on CurseForge](http://cf.way2muchnoise.eu/title/cc-tweaked.svg)][CurseForge]
 
-CC: Tweaked is a fork of [ComputerCraft](https://github.com/dan200/ComputerCraft), adding programmable computers,
-turtles and more to Minecraft.
+CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles and more to the game. A fork of the
+much-beloved [ComputerCraft], it continues its legacy with better performance, stability, and a wealth of new features.
 
-## What?
-ComputerCraft has always held a fond place in my heart: it's the mod which really got me into Minecraft, and it's the
-mod which has kept me playing it for many years. However, development of the original mod has slowed, as the original
-developers have had less time to work on the mod, and moved onto other projects and commitments.
-
-CC: Tweaked (or CC:T for short) is an attempt to continue ComputerCraft's legacy. It's not intended to be a competitor
-to CC, nor do I want to take it in a vastly different direction to the original mod. Instead, CC:T focuses on making the
-ComputerCraft experience as _solid_ as possible, ironing out any wrinkles that may have developed over time.
-
-## Features
-CC: Tweaked contains all the features of the latest version of ComputerCraft, as well as numerous fixes, performance
-improvements and several nifty additions. I'd recommend checking out [the releases page](https://github.com/SquidDev-CC/CC-Tweaked/releases)
-to see the full set of changes, but here's a couple of the more interesting additions:
-
- - Improvements to the `http` library, including websockets, support for other HTTP methods (`PUT`, `DELETE`, etc...)
-   and configurable limits on HTTP usage.
- - Full-block wired modems, allowing one to wrap non-solid peripherals (such as turtles, or chests if Plethora is
-   installed).
- - Pocket computers can be held like maps, allowing you to view the screen without entering a GUI.
- - Printed pages and books can be placed in item frames and held like maps.
- - Several profiling and administration tools for server owners, via the `/computercraft` command. This allows operators
-   to track which computers are hogging resources, turn on and shutdown multiple computers at once and interact with
-   computers remotely.
- - Closer emulation of standard Lua, adding the `debug` and `io` libraries. This also enables seeking within binary
-   files, meaning you don't need to read large files into memory.
- - Allow running multiple computers on multiple threads, reducing latency on worlds with many computers.
-
-## Relation to CCTweaks?
-This mod has nothing to do with CCTweaks, though there is no denying the name is a throwback to it. That being said,
-several features have been included, such as full block modems, the Cobalt runtime and map-like rendering for pocket
-computers.
+CC: Tweaked can be installed from [CurseForge] or [Modrinth]. It requires the [Minecraft Forge][forge] mod loader, but
+[versions are available for Fabric][ccrestitched].
 
 ## Contributing
-Any contribution is welcome, be that using the mod, reporting bugs or contributing code. In order to start helping
-develop CC:T, you'll need to follow these steps:
-
- - **Clone the repository:** `git clone https://github.com/SquidDev-CC/CC-Tweaked.git && cd CC-Tweaked`
- - **Setup Forge:** `./gradlew setupDecompWorkspace`
- - **Test your changes:** `./gradlew runClient` (or run the `GradleStart` class from your IDE).
-
-If you want to run CC:T in a normal Minecraft instance, run `./gradlew build` and copy the `.jar` from `build/libs`.
+Any contribution is welcome, be that using the mod, reporting bugs or contributing code. If you want to get started
+developing the mod, [check out the instructions here](CONTRIBUTING.md#developing).
 
 ## Community
 If you need help getting started with CC: Tweaked, want to show off your latest project, or just want to chat about
-ComputerCraft we have a [forum](https://forums.computercraft.cc/) and [Discord guild](https://discord.gg/H2UyJXe)!
-There's also a fairly populated, albeit quiet [IRC channel](http://webchat.esper.net/?channels=#computercraft), if
-that's more your cup of tea.
+ComputerCraft, do check out our [forum] and [GitHub discussions page][GitHub discussions]! There's also a fairly
+populated, albeit quiet [IRC channel][irc], if that's more your cup of tea.
 
-I'd generally recommend you don't contact me directly (email, DM, etc...) unless absolutely necessary (i.e. in order to
-report exploits). You'll get a far quicker response if you ask the whole community!
+We also host fairly comprehensive documentation at [tweaked.cc](https://tweaked.cc/ "The CC: Tweaked website").
 
 ## Using
-If you want to depend on CC: Tweaked, we have a maven repo. However, you should be wary that some functionality is only
-exposed by CC:T's API and not vanilla ComputerCraft. If you wish to support all variations of ComputerCraft, I recommend
-using [cc.crzd.me's maven](https://cc.crzd.me/maven/) instead.
+CC: Tweaked is hosted on my maven repo, and so is relatively simple to depend on. You may wish to add a soft (or hard)
+dependency in your `mods.toml` file, with the appropriate version bounds, to ensure that API functionality you depend
+on is present.
 
 ```groovy
-dependencies {
-  maven { url 'https://squiddev.cc/maven/' }
+repositories {
+  maven {
+    url "https://squiddev.cc/maven/"
+    content {
+      includeGroup("cc.tweaked")
+      includeModule("org.squiddev", "Cobalt")
+      includeModule("fuzs.forgeconfigapiport", "forgeconfigapiport-fabric")
+    }
+  }
 }
 
 dependencies {
-  implementation "org.squiddev:cc-tweaked-${mc_version}:${cct_version}"
+  // Vanilla (i.e. for multi-loader systems)
+  compileOnly("cc.tweaked:cc-tweaked-$mcVersion-common-api")
+
+  // Forge Gradle
+  compileOnly(fg.deobf("cc.tweaked:cc-tweaked-$mcVersion-forge-api:$cctVersion"))
+  runtimeOnly(fg.deobf("cc.tweaked:cc-tweaked-$mcVersion-forge:$cctVersion"))
+
+  // Fabric Loom
+  modCompileOnly("cc.tweaked:cc-tweaked-$mcVersion-fabric-api:$cctVersion")
+  modRuntimeOnly("cc.tweaked:cc-tweaked-$mcVersion-fabric:$cctVersion")
 }
 ```
 
 You should also be careful to only use classes within the `dan200.computercraft.api` package. Non-API classes are
 subject to change at any point. If you depend on functionality outside the API, file an issue, and we can look into
 exposing more features.
+
+We bundle the API sources with the jar, so documentation should be easily viewable within your editor. Alternatively,
+the generated documentation [can be browsed online](https://tweaked.cc/javadoc/).
+
+[computercraft]: https://github.com/dan200/ComputerCraft "ComputerCraft on GitHub"
+[curseforge]: https://minecraft.curseforge.com/projects/cc-tweaked "Download CC: Tweaked from CurseForge"
+[modrinth]: https://modrinth.com/mod/gu7yAYhd "Download CC: Tweaked from Modrinth"
+[forge]: https://files.minecraftforge.net/ "Download Minecraft Forge."
+[ccrestitched]: https://www.curseforge.com/minecraft/mc-mods/cc-restitched "Download CC: Restitched from CurseForge"
+[forum]: https://forums.computercraft.cc/
+[GitHub Discussions]: https://github.com/cc-tweaked/CC-Tweaked/discussions
+[IRC]: https://webchat.esper.net/?channels=computercraft "#computercraft on EsperNet"

build.gradle

@@ -1,390 +0,0 @@
-buildscript {
-    dependencies {
-        classpath 'com.google.code.gson:gson:2.8.1'
-        classpath 'net.sf.proguard:proguard-gradle:6.1.0beta2'
-        classpath 'org.ajoberstar.grgit:grgit-gradle:3.0.0'
-    }
-}
-
-plugins {
-    id 'fabric-loom' version '0.2.3-SNAPSHOT'
-    id 'com.matthewprenger.cursegradle' version '1.2.0'
-    id "com.github.breadmoirai.github-release" version "2.2.4"
-}
-
-apply plugin: 'org.ajoberstar.grgit'
-apply plugin: 'maven-publish'
-apply plugin: 'maven'
-
-version = mod_version
-
-group = "org.squiddev"
-archivesBaseName = "cc-tweaked-${mc_version}"
-
-minecraft {
-}
-
-repositories {
-    mavenCentral()
-    maven {
-        name "JEI"
-        url  "http://dvs1.progwml6.com/files/maven"
-    }
-    maven {
-        name "SquidDev"
-        url "https://squiddev.cc/maven"
-    }
-    ivy {
-        name "Charset"
-        artifactPattern "https://asie.pl/files/mods/Charset/LibOnly/[module]-[revision](-[classifier]).[ext]"
-    }
-    maven {
-        name "Amadornes"
-        url "http://maven.amadornes.com/"
-    }
-}
-
-configurations {
-    shade
-    compile.extendsFrom shade
-    deployerJars
-}
-
-dependencies {
-    minecraft "com.mojang:minecraft:${mc_version}"
-    mappings "net.fabricmc:yarn:${mc_version}+build.${mappings_version}"
-    modCompile "net.fabricmc:fabric-loader:0.4.8+build.153"
-    modCompile "net.fabricmc.fabric-api:fabric-api:0.3.0+build.175"
-
-    implementation 'com.google.code.findbugs:jsr305:3.0.2'
-
-    shade 'org.squiddev:Cobalt:0.5.0-SNAPSHOT'
-    shade 'javax.vecmath:vecmath:1.5.2'
-
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.1.0'
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.1.0'
-
-    deployerJars "org.apache.maven.wagon:wagon-ssh:3.0.0"
-}
-
-sourceSets {
-    main {
-        java {
-            exclude 'dan200/computercraft/shared/integration'
-        }
-    }
-}
-
-javadoc {
-    include "dan200/computercraft/api/**/*.java"
-}
-
-jar {
-    dependsOn javadoc
-
-    manifest {
-        attributes(["Specification-Title": "computercraft",
-                    "Specification-Vendor": "SquidDev",
-                    "Specification-Version": "25.0",
-                    "Implementation-Title": "CC: Tweaked",
-                    "Implementation-Version": "${mod_version}",
-                    "Implementation-Vendor" :"SquidDev",
-                    "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")])
-    }
-
-    from (sourceSets.main.allSource) {
-        include "dan200/computercraft/api/**/*.java"
-    }
-
-    from configurations.shade.collect { it.isDirectory() ? it : zipTree(it) }
-}
-
-import java.nio.charset.StandardCharsets
-import java.nio.file.*
-import java.util.zip.*
-
-import com.google.gson.GsonBuilder
-import com.google.gson.JsonElement
-import org.ajoberstar.grgit.Grgit
-import proguard.gradle.ProGuardTask
-
-task proguard(type: ProGuardTask, dependsOn: jar) {
-    description "Removes unused shadowed classes from the jar"
-    group "compact"
-
-    afterEvaluate {
-        // Fabric changes the jar's classifier so we to do this after evaluating!
-        injars jar.archivePath
-        outjars "${jar.archivePath.absolutePath.replace(".jar", "")}-min.jar"
-    }
-
-    // Add the main runtime jar and all non-shadowed dependencies
-    libraryjars "${System.getProperty('java.home')}/lib/rt.jar"
-    doFirst {
-        sourceSets.main.compileClasspath
-            .filter { !it.name.contains("Cobalt") }
-            .each { libraryjars it }
-    }
-
-    // We want to avoid as much obfuscation as possible. We're only doing this to shrink code size.
-    dontobfuscate; dontoptimize; keepattributes; keepparameternames
-
-    // Proguard will remove directories by default, but that breaks JarMount.
-    keepdirectories 'data/computercraft/lua**'
-
-    // Preserve ComputerCraft classes - we only want to strip shadowed files.
-    keep 'class dan200.computercraft.** { *; }'
-
-    // Preserve the constructors in Cobalt library class, as we init them via reflection
-    keepclassmembers 'class org.squiddev.cobalt.lib.** { <init>(...); }'
-
-    // LWJGL and Apache bundle Java 9 versions, which is great, but rather breaks Proguard
-    dontwarn 'module-info'
-    dontwarn 'org.apache.**,org.lwjgl.**,javax.crypto.SecretKey'
-}
-
-task proguardMove(dependsOn: proguard) {
-    description "Replace the original jar with the minified version"
-    group "compact"
-
-    doLast {
-        Files.move(
-            file("${jar.archivePath.absolutePath.replace(".jar", "")}-min.jar").toPath(),
-            file(jar.archivePath).toPath(),
-            StandardCopyOption.REPLACE_EXISTING
-        )
-    }
-}
-
-remapJar.dependsOn proguardMove
-
-processResources {
-    inputs.property "version", mod_version
-    inputs.property "mcversion", mc_version
-
-    def hash = 'none'
-    Set<String> contributors = []
-    try {
-        def grgit = Grgit.open(dir: '.')
-        hash = grgit.head().id
-
-        def blacklist = ['GitHub', 'dan200', 'Daniel Ratcliffe']
-        grgit.log().each {
-            if (!blacklist.contains(it.author.name)) contributors.add(it.author.name)
-            if (!blacklist.contains(it.committer.name)) contributors.add(it.committer.name)
-        }
-    } catch(Exception ignored) { }
-
-    inputs.property "commithash", hash
-
-    from(sourceSets.main.resources.srcDirs) {
-        include 'fabric.mod.json'
-        include 'data/computercraft/lua/rom/help/credits.txt'
-
-        expand 'version': mod_version,
-               'mcversion': mc_version,
-               'gitcontributors': contributors.sort(false, String.CASE_INSENSITIVE_ORDER).join('\n')
-    }
-
-    from(sourceSets.main.resources.srcDirs) {
-        exclude 'fabric.mod.json'
-        exclude 'data/computercraft/lua/rom/help/credits.txt'
-    }
-}
-
-task compressJson(dependsOn: remapJar) {
-    group "compact"
-    description "Minifies all JSON files, stripping whitespace"
-
-    def jarPath = file(jar.archivePath)
-
-    def tempPath = File.createTempFile("input", ".jar", temporaryDir)
-    tempPath.deleteOnExit()
-
-    def gson = new GsonBuilder().create()
-
-    doLast {
-        // Copy over all files in the current jar to the new one, running json files from GSON. As pretty printing
-        // is turned off, they should be minified.
-        new ZipFile(jarPath).withCloseable { inJar ->
-            new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(tempPath))).withCloseable { outJar ->
-                inJar.entries().each { entry ->
-                    if(entry.directory) {
-                        outJar.putNextEntry(entry)
-                    } else if(!entry.name.endsWith(".json")) {
-                        outJar.putNextEntry(entry)
-                        inJar.getInputStream(entry).withCloseable { outJar << it }
-                    } else {
-                        ZipEntry newEntry = new ZipEntry(entry.name)
-                        newEntry.setTime(entry.time)
-                        outJar.putNextEntry(newEntry)
-
-                        def element = inJar.getInputStream(entry).withCloseable { gson.fromJson(it.newReader("UTF8"), JsonElement.class) }
-                        outJar.write(gson.toJson(element).getBytes(StandardCharsets.UTF_8))
-                    }
-                }
-
-            }
-        }
-
-        // And replace the original jar again
-        Files.move(tempPath.toPath(), jarPath.toPath(), StandardCopyOption.REPLACE_EXISTING)
-    }
-}
-
-assemble.dependsOn compressJson
-
-task checkRelease {
-    group "upload"
-    description "Verifies that everything is ready for a release"
-
-    inputs.property "version", mod_version
-    inputs.file("src/main/resources/data/computercraft/lua/rom/help/changelog.txt")
-    inputs.file("src/main/resources/data/computercraft/lua/rom/help/whatsnew.txt")
-
-    doLast {
-        def ok = true
-
-        // Check we're targetting the current version
-        def whatsnew = new File("src/main/resources/data/computercraft/lua/rom/help/whatsnew.txt").readLines()
-        if (whatsnew[0] != "New features in CC: Tweaked $mod_version") {
-            ok = false
-            project.logger.error("Expected `whatsnew.txt' to target $mod_version.")
-        }
-
-        // Check "read more" exists and trim it
-        def idx = whatsnew.findIndexOf { it == 'Type "help changelog" to see the full version history.' }
-        if (idx == -1) {
-            ok = false
-            project.logger.error("Must mention the changelog in whatsnew.txt")
-        } else {
-            whatsnew = whatsnew.getAt(0 ..< idx)
-        }
-
-        // Check whatsnew and changelog match.
-        def versionChangelog = "# " + whatsnew.join("\n")
-        def changelog = new File("src/main/resources/data/computercraft/lua/rom/help/changelog.txt").getText()
-        if (!changelog.startsWith(versionChangelog)) {
-            ok = false
-            project.logger.error("whatsnew and changelog are not in sync")
-        }
-
-        if (!ok) throw new IllegalStateException("Could not check release")
-    }
-}
-
-
-curseforge {
-    apiKey = project.hasProperty('curseForgeApiKey') ? project.curseForgeApiKey : ''
-    project {
-        id = '282001'
-        addGameVersion '1.14.2'
-        releaseType = 'beta'
-        changelog = "Release notes can be found on the GitHub repository (https://github.com/SquidDev-CC/CC-Tweaked/releases/tag/v${mc_version}-${mod_version})."
-
-        relations {
-            incompatible "computercraft"
-            requiredDependency "fabric"
-        }
-        afterEvaluate {
-            mainArtifact(remapJar.output)
-            uploadTask.dependsOn(remapJar)
-        }
-    }
-
-    options {
-        forgeGradleIntegration = false
-    }
-}
-
-publishing {
-    publications {
-        mavenJava(MavenPublication) {
-            from components.java
-            // artifact sourceJar
-        }
-    }
-}
-
-uploadArchives {
-    repositories {
-        if(project.hasProperty('mavenUploadUrl')) {
-            mavenDeployer {
-                configuration = configurations.deployerJars
-
-                repository(url: project.property('mavenUploadUrl')) {
-                    authentication(
-                        userName: project.property('mavenUploadUser'),
-                        privateKey: project.property('mavenUploadKey'))
-                }
-
-                pom.project {
-                    name 'CC: Tweaked'
-                    packaging 'jar'
-                    description 'CC: Tweaked is a fork of ComputerCraft, adding programmable computers, turtles and more to Minecraft.'
-                    url 'https://github.com/SquidDev-CC/CC-Tweaked'
-
-                    scm {
-                        url 'https://github.com/SquidDev-CC/CC-Tweaked.git'
-                    }
-
-                    issueManagement {
-                        system 'github'
-                        url 'https://github.com/SquidDev-CC/CC-Tweaked/issues'
-                    }
-
-                    licenses {
-                        license {
-                            name 'ComputerCraft Public License, Version 1.0'
-                            url 'https://github.com/SquidDev-CC/CC-Tweaked/blob/master/LICENSE'
-                            distribution 'repo'
-                        }
-                    }
-                }
-
-                pom.whenConfigured { pom ->
-                    pom.dependencies.clear()
-                }
-            }
-        }
-    }
-}
-
-githubRelease {
-    token project.hasProperty('githubApiKey') ? project.githubApiKey : ''
-    owner 'SquidDev-CC'
-    repo 'CC-Tweaked'
-    targetCommitish { Grgit.open(dir: '.').branch.current().name }
-
-    tagName "v${mc_version}-${mod_version}"
-    releaseName "[${mc_version}] ${mod_version}"
-    body {
-        "## " + new File("src/main/resources/data/computercraft/lua/rom/help/whatsnew.txt")
-            .readLines()
-            .takeWhile { it != 'Type "help changelog" to see the full version history.' }
-            .join("\n").trim()
-    }
-    prerelease false
-}
-
-def uploadTasks = ["uploadArchives", "curseforge", "githubRelease"]
-uploadTasks.forEach { tasks.getByName(it).dependsOn checkRelease }
-
-task uploadAll(dependsOn: [remapJar] + uploadTasks) {
-    group "upload"
-    description "Uploads to all repositories (Maven, Curse, GitHub release)"
-}
-
-test {
-    useJUnitPlatform()
-    testLogging {
-        events "passed", "skipped", "failed"
-    }
-}
-
-gradle.projectsEvaluated {
-    tasks.withType(JavaCompile) {
-        options.compilerArgs << "-Xlint" << "-Xlint:-processing" // Causes Forge build to fail << "-Werror"
-    }
-}
-

build.gradle.kts

@@ -0,0 +1,52 @@
+import org.jetbrains.gradle.ext.compiler
+import org.jetbrains.gradle.ext.settings
+
+plugins {
+    publishing
+    alias(libs.plugins.taskTree)
+    alias(libs.plugins.githubRelease)
+    id("org.jetbrains.gradle.plugin.idea-ext")
+    id("cc-tweaked")
+}
+
+val isUnstable = project.properties["isUnstable"] == "true"
+val modVersion: String by extra
+val mcVersion: String by extra
+
+githubRelease {
+    token(findProperty("githubApiKey") as String? ?: "")
+    owner.set("cc-tweaked")
+    repo.set("CC-Tweaked")
+    targetCommitish.set(cct.gitBranch)
+
+    tagName.set("v$mcVersion-$modVersion")
+    releaseName.set("[$mcVersion] $modVersion")
+    body.set(
+        provider {
+            "## " + project(":core").file("src/main/resources/data/computercraft/lua/rom/help/whatsnew.md")
+                .readLines()
+                .takeWhile { it != "Type \"help changelog\" to see the full version history." }
+                .joinToString("\n").trim()
+        },
+    )
+    prerelease.set(isUnstable)
+}
+
+tasks.publish { dependsOn(tasks.githubRelease) }
+
+idea.project.settings.compiler.javac {
+    // We want ErrorProne to be present when compiling via IntelliJ, as it offers some helpful warnings
+    // and errors. Loop through our source sets and find the appropriate flags.
+    moduleJavacAdditionalOptions = subprojects
+        .asSequence()
+        .map { evaluationDependsOn(it.path) }
+        .flatMap { project ->
+            val sourceSets = project.extensions.findByType(SourceSetContainer::class) ?: return@flatMap sequenceOf()
+            sourceSets.asSequence().map { sourceSet ->
+                val name = "${idea.project.name}.${project.name}.${sourceSet.name}"
+                val compile = project.tasks.named(sourceSet.compileJavaTaskName, JavaCompile::class).get()
+                name to compile.options.allCompilerArgs.joinToString(" ") { if (it.contains(" ")) "\"$it\"" else it }
+            }
+        }
+        .toMap()
+}

buildSrc/build.gradle.kts

@@ -0,0 +1,70 @@
+plugins {
+    `java-gradle-plugin`
+    `kotlin-dsl`
+}
+
+// Duplicated in settings.gradle.kts
+repositories {
+    mavenCentral()
+    gradlePluginPortal()
+
+    maven("https://maven.minecraftforge.net") {
+        name = "Forge"
+        content {
+            includeGroup("net.minecraftforge")
+            includeGroup("net.minecraftforge.gradle")
+        }
+    }
+
+    maven("https://maven.parchmentmc.org") {
+        name = "Librarian"
+        content {
+            includeGroupByRegex("^org\\.parchmentmc.*")
+        }
+    }
+
+    maven("https://repo.spongepowered.org/repository/maven-public/") {
+        name = "Sponge"
+        content {
+            includeGroup("org.spongepowered")
+        }
+    }
+
+    maven("https://maven.fabricmc.net/") {
+        name = "Fabric"
+        content {
+            includeGroup("net.fabricmc")
+        }
+    }
+}
+
+dependencies {
+    implementation(libs.errorProne.plugin)
+    implementation(libs.kotlin.plugin)
+    implementation(libs.spotless)
+
+    implementation(libs.fabric.loom)
+    implementation(libs.forgeGradle)
+    implementation(libs.librarian)
+    implementation(libs.quiltflower)
+    implementation(libs.vanillaGradle)
+}
+
+gradlePlugin {
+    plugins {
+        register("cc-tweaked") {
+            id = "cc-tweaked"
+            implementationClass = "cc.tweaked.gradle.CCTweakedPlugin"
+        }
+
+        register("cc-tweaked.illuaminate") {
+            id = "cc-tweaked.illuaminate"
+            implementationClass = "cc.tweaked.gradle.IlluaminatePlugin"
+        }
+
+        register("cc-tweaked.node") {
+            id = "cc-tweaked.node"
+            implementationClass = "cc.tweaked.gradle.NodePlugin"
+        }
+    }
+}

buildSrc/settings.gradle.kts

@@ -0,0 +1,7 @@
+dependencyResolutionManagement {
+    versionCatalogs {
+        create("libs") {
+            from(files("../gradle/libs.versions.toml"))
+        }
+    }
+}

buildSrc/src/main/kotlin/cc-tweaked.fabric.gradle.kts

@@ -0,0 +1,66 @@
+/** Default configuration for Fabric projects. */
+
+import cc.tweaked.gradle.CCTweakedExtension
+import cc.tweaked.gradle.CCTweakedPlugin
+import cc.tweaked.gradle.IdeaRunConfigurations
+import cc.tweaked.gradle.MinecraftConfigurations
+
+plugins {
+    `java-library`
+    id("fabric-loom")
+    id("io.github.juuxel.loom-quiltflower")
+    id("cc-tweaked.java-convention")
+}
+
+plugins.apply(CCTweakedPlugin::class.java)
+
+val mcVersion: String by extra
+
+repositories {
+    maven("https://maven.parchmentmc.org/") {
+        name = "Parchment"
+        content {
+            includeGroup("org.parchmentmc.data")
+        }
+    }
+}
+
+loom {
+    splitEnvironmentSourceSets()
+    splitModDependencies.set(true)
+}
+
+MinecraftConfigurations.setup(project)
+
+extensions.configure(CCTweakedExtension::class.java) {
+    linters(minecraft = true, loader = "fabric")
+}
+
+dependencies {
+    val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
+
+    minecraft("com.mojang:minecraft:$mcVersion")
+    mappings(
+        loom.layered {
+            officialMojangMappings()
+            parchment(
+                project.dependencies.create(
+                    group = "org.parchmentmc.data",
+                    name = "parchment-${libs.findVersion("parchmentMc").get()}",
+                    version = libs.findVersion("parchment").get().toString(),
+                    ext = "zip",
+                ),
+            )
+        },
+    )
+
+    modImplementation(libs.findLibrary("fabric-loader").get())
+    modImplementation(libs.findLibrary("fabric-api").get())
+
+    // Depend on error prone annotations to silence a lot of compile warnings.
+    compileOnlyApi(libs.findLibrary("errorProne.annotations").get())
+}
+
+tasks.ideaSyncTask {
+    doLast { IdeaRunConfigurations(project).patch() }
+}

buildSrc/src/main/kotlin/cc-tweaked.forge.gradle.kts

@@ -0,0 +1,39 @@
+/** Default configuration for Forge projects. */
+
+import cc.tweaked.gradle.CCTweakedExtension
+import cc.tweaked.gradle.CCTweakedPlugin
+import cc.tweaked.gradle.IdeaRunConfigurations
+import cc.tweaked.gradle.MinecraftConfigurations
+
+plugins {
+    id("cc-tweaked.java-convention")
+    id("net.minecraftforge.gradle")
+    id("org.parchmentmc.librarian.forgegradle")
+}
+
+plugins.apply(CCTweakedPlugin::class.java)
+
+val mcVersion: String by extra
+
+minecraft {
+    val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
+    mappings("parchment", "${libs.findVersion("parchmentMc").get()}-${libs.findVersion("parchment").get()}-$mcVersion")
+
+    accessTransformer(project(":forge").file("src/main/resources/META-INF/accesstransformer.cfg"))
+}
+
+MinecraftConfigurations.setup(project)
+
+extensions.configure(CCTweakedExtension::class.java) {
+    linters(minecraft = true, loader = "forge")
+}
+
+dependencies {
+    val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
+    "minecraft"("net.minecraftforge:forge:$mcVersion-${libs.findVersion("forge").get()}")
+}
+
+tasks.configureEach {
+    // genIntellijRuns isn't registered until much later, so we need this silly hijinks.
+    if (name == "genIntellijRuns") doLast { IdeaRunConfigurations(project).patch() }
+}

buildSrc/src/main/kotlin/cc-tweaked.gametest.gradle.kts

@@ -0,0 +1,60 @@
+import cc.tweaked.gradle.clientClasses
+import cc.tweaked.gradle.commonClasses
+
+/**
+ * Sets up the configurations for writing game tests.
+ *
+ * See notes in [cc.tweaked.gradle.MinecraftConfigurations] for the general design behind these cursed ideas.
+ */
+
+plugins {
+    id("cc-tweaked.kotlin-convention")
+    id("cc-tweaked.java-convention")
+}
+
+val main = sourceSets["main"]
+val client = sourceSets["client"]
+
+// Both testMod and testFixtures inherit from the main and client classpath, just so we have access to Minecraft classes.
+val testMod by sourceSets.creating {
+    compileClasspath += main.compileClasspath + client.compileClasspath
+    runtimeClasspath += main.runtimeClasspath + client.runtimeClasspath
+}
+
+configurations {
+    named(testMod.compileClasspathConfigurationName) {
+        shouldResolveConsistentlyWith(compileClasspath.get())
+    }
+
+    named(testMod.runtimeClasspathConfigurationName) {
+        shouldResolveConsistentlyWith(runtimeClasspath.get())
+    }
+}
+
+// Like the main test configurations, we're safe to depend on source set outputs.
+dependencies {
+    add(testMod.implementationConfigurationName, main.output)
+    add(testMod.implementationConfigurationName, client.output)
+}
+
+// Similar to java-test-fixtures, but tries to avoid putting the obfuscated jar on the classpath.
+
+val testFixtures by sourceSets.creating {
+    compileClasspath += main.compileClasspath + client.compileClasspath
+}
+
+java.registerFeature("testFixtures") {
+    usingSourceSet(testFixtures)
+    disablePublication()
+}
+
+dependencies {
+    val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
+    add(testFixtures.apiConfigurationName, libs.findBundle("test").get())
+    // Consumers of this project already have the common and client classes on the classpath, so it's fine for these
+    // to be compile-only.
+    add(testFixtures.compileOnlyApiConfigurationName, commonClasses(project))
+    add(testFixtures.compileOnlyApiConfigurationName, clientClasses(project))
+
+    testImplementation(testFixtures(project))
+}

buildSrc/src/main/kotlin/cc-tweaked.java-convention.gradle.kts

@@ -0,0 +1,198 @@
+import cc.tweaked.gradle.CCTweakedExtension
+import cc.tweaked.gradle.CCTweakedPlugin
+import cc.tweaked.gradle.LicenseHeader
+import com.diffplug.gradle.spotless.FormatExtension
+import com.diffplug.spotless.LineEnding
+import net.ltgt.gradle.errorprone.CheckSeverity
+import net.ltgt.gradle.errorprone.errorprone
+import java.nio.charset.StandardCharsets
+
+plugins {
+    `java-library`
+    idea
+    jacoco
+    checkstyle
+    id("com.diffplug.spotless")
+    id("net.ltgt.errorprone")
+}
+
+val modVersion: String by extra
+val mcVersion: String by extra
+
+group = "cc.tweaked"
+version = modVersion
+
+base.archivesName.convention("cc-tweaked-$mcVersion-${project.name}")
+
+java {
+    toolchain {
+        languageVersion.set(CCTweakedPlugin.JAVA_VERSION)
+    }
+
+    withSourcesJar()
+}
+
+repositories {
+    mavenCentral()
+    maven("https://squiddev.cc/maven") {
+        name = "SquidDev"
+        content {
+            includeGroup("org.squiddev")
+            includeGroup("cc.tweaked")
+            // Things we mirror
+            includeGroup("dev.architectury")
+            includeGroup("maven.modrinth")
+            includeGroup("me.shedaniel")
+            includeGroup("me.shedaniel.cloth")
+            includeGroup("mezz.jei")
+            includeModule("com.terraformersmc", "modmenu")
+            includeModule("fuzs.forgeconfigapiport", "forgeconfigapiport-fabric")
+            // Until https://github.com/SpongePowered/Mixin/pull/593 is merged
+            includeModule("org.spongepowered", "mixin")
+        }
+    }
+}
+
+dependencies {
+    val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
+    checkstyle(libs.findLibrary("checkstyle").get())
+
+    errorprone(libs.findLibrary("errorProne-core").get())
+    errorprone(libs.findLibrary("nullAway").get())
+}
+
+// Configure default JavaCompile tasks with our arguments.
+sourceSets.all {
+    tasks.named(compileJavaTaskName, JavaCompile::class.java) {
+        // Processing just gives us "No processor claimed any of these annotations", so skip that!
+        options.compilerArgs.addAll(listOf("-Xlint", "-Xlint:-processing"))
+
+        options.errorprone {
+            check("InvalidBlockTag", CheckSeverity.OFF) // Broken by @cc.xyz
+            check("InvalidParam", CheckSeverity.OFF) // Broken by records.
+            check("InlineMeSuggester", CheckSeverity.OFF) // Minecraft uses @Deprecated liberally
+            // Too many false positives right now. Maybe we need an indirection for it later on.
+            check("ReferenceEquality", CheckSeverity.OFF)
+            check("UnusedVariable", CheckSeverity.OFF) // Too many false positives with records.
+            check("OperatorPrecedence", CheckSeverity.OFF) // For now.
+            check("AlreadyChecked", CheckSeverity.OFF) // Seems to be broken?
+            check("NonOverridingEquals", CheckSeverity.OFF) // Peripheral.equals makes this hard to avoid
+            check("FutureReturnValueIgnored", CheckSeverity.OFF) // Too many false positives with Netty
+
+            check("NullAway", CheckSeverity.ERROR)
+            option("NullAway:AnnotatedPackages", listOf("dan200.computercraft", "net.fabricmc.fabric.api").joinToString(","))
+            option("NullAway:ExcludedFieldAnnotations", listOf("org.spongepowered.asm.mixin.Shadow").joinToString(","))
+            option("NullAway:CastToNonNullMethod", "dan200.computercraft.core.util.Nullability.assertNonNull")
+            option("NullAway:CheckOptionalEmptiness")
+            option("NullAway:AcknowledgeRestrictiveAnnotations")
+        }
+    }
+}
+
+tasks.compileTestJava {
+    options.errorprone {
+        check("NullAway", CheckSeverity.OFF)
+    }
+}
+
+
+tasks.withType(JavaCompile::class.java).configureEach {
+    options.encoding = "UTF-8"
+}
+
+tasks.withType(AbstractArchiveTask::class.java).configureEach {
+    isPreserveFileTimestamps = false
+    isReproducibleFileOrder = true
+    dirMode = Integer.valueOf("755", 8)
+    fileMode = Integer.valueOf("664", 8)
+}
+
+tasks.jar {
+    manifest {
+        attributes(
+            "Specification-Title" to "computercraft",
+            "Specification-Vendor" to "SquidDev",
+            "Specification-Version" to "1",
+            "Implementation-Title" to "cctweaked-${project.name}",
+            "Implementation-Version" to modVersion,
+            "Implementation-Vendor" to "SquidDev",
+        )
+    }
+}
+
+tasks.javadoc {
+    options {
+        val stdOptions = this as StandardJavadocDocletOptions
+        stdOptions.addBooleanOption("Xdoclint:all,-missing", true)
+        stdOptions.links("https://docs.oracle.com/en/java/javase/17/docs/api/")
+    }
+}
+
+tasks.test {
+    finalizedBy("jacocoTestReport")
+
+    useJUnitPlatform()
+    testLogging {
+        events("skipped", "failed")
+    }
+}
+
+tasks.withType(JacocoReport::class.java).configureEach {
+    reports.xml.required.set(true)
+    reports.html.required.set(true)
+}
+
+project.plugins.withType(CCTweakedPlugin::class.java) {
+    // Set up jacoco to read from /all/ our source directories.
+    val cct = project.extensions.getByType<CCTweakedExtension>()
+    project.tasks.named("jacocoTestReport", JacocoReport::class.java) {
+        for (ref in cct.sourceSets.get()) sourceDirectories.from(ref.allSource.sourceDirectories)
+    }
+}
+
+spotless {
+    encoding = StandardCharsets.UTF_8
+    lineEndings = LineEnding.UNIX
+
+    fun FormatExtension.defaults() {
+        endWithNewline()
+        trimTrailingWhitespace()
+        indentWithSpaces(4)
+    }
+
+    val licenser = LicenseHeader.create(
+        api = rootProject.file("config/license/api.txt"),
+        main = rootProject.file("config/license/main.txt"),
+    )
+
+    java {
+        defaults()
+        addStep(licenser)
+        removeUnusedImports()
+    }
+
+    val ktlintConfig = mapOf(
+        "disabled_rules" to "no-wildcard-imports",
+        "ij_kotlin_allow_trailing_comma" to "true",
+        "ij_kotlin_allow_trailing_comma_on_call_site" to "true",
+    )
+
+    kotlinGradle {
+        defaults()
+        ktlint().editorConfigOverride(ktlintConfig)
+    }
+
+    kotlin {
+        defaults()
+        ktlint().editorConfigOverride(ktlintConfig)
+    }
+}
+
+idea.module {
+    excludeDirs.addAll(project.files("run", "out", "logs").files)
+
+    // Force Gradle to write to inherit the output directory from the parent, instead of writing to out/xxx/classes.
+    // This is required for Loom, and we patch Forge's run configurations to work there.
+    // TODO: Submit a patch to Forge to support ProjectRootManager.
+    inheritOutputDirs = true
+}

buildSrc/src/main/kotlin/cc-tweaked.kotlin-convention.gradle.kts

@@ -0,0 +1,21 @@
+import cc.tweaked.gradle.CCTweakedPlugin
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    kotlin("jvm")
+}
+
+kotlin {
+    jvmToolchain {
+        languageVersion.set(CCTweakedPlugin.JAVA_VERSION)
+    }
+}
+
+tasks.withType(KotlinCompile::class.java).configureEach {
+    // So technically we shouldn't need to do this as the toolchain sets it above. However, the option only appears
+    // to be set when the task executes, so doesn't get picked up by IDEs.
+    kotlinOptions.jvmTarget = when {
+        CCTweakedPlugin.JAVA_VERSION.asInt() > 8 -> CCTweakedPlugin.JAVA_VERSION.toString()
+        else -> "1.${CCTweakedPlugin.JAVA_VERSION.asInt()}"
+    }
+}

buildSrc/src/main/kotlin/cc-tweaked.publishing.gradle.kts

@@ -0,0 +1,45 @@
+import org.gradle.kotlin.dsl.`maven-publish`
+
+plugins {
+    `java-library`
+    `maven-publish`
+}
+
+publishing {
+    publications {
+        register<MavenPublication>("maven") {
+            artifactId = base.archivesName.get()
+            from(components["java"])
+
+            pom {
+                name.set("CC: Tweaked")
+                description.set("CC: Tweaked is a fork of ComputerCraft, adding programmable computers, turtles and more to Minecraft.")
+                url.set("https://github.com/cc-tweaked/CC-Tweaked")
+
+                scm {
+                    url.set("https://github.com/cc-tweaked/CC-Tweaked.git")
+                }
+
+                issueManagement {
+                    system.set("github")
+                    url.set("https://github.com/cc-tweaked/CC-Tweaked/issues")
+                }
+
+                licenses {
+                    license {
+                        name.set("ComputerCraft Public License, Version 1.0")
+                        url.set("https://github.com/cc-tweaked/CC-Tweaked/blob/HEAD/LICENSE")
+                    }
+                }
+            }
+        }
+    }
+
+    repositories {
+        maven("https://squiddev.cc/maven") {
+            name = "SquidDev"
+
+            credentials(PasswordCredentials::class)
+        }
+    }
+}

buildSrc/src/main/kotlin/cc-tweaked.vanilla.gradle.kts

@@ -0,0 +1,31 @@
+/** Default configuration for non-modloader-specific Minecraft projects. */
+
+import cc.tweaked.gradle.CCTweakedExtension
+import cc.tweaked.gradle.CCTweakedPlugin
+import cc.tweaked.gradle.MinecraftConfigurations
+
+plugins {
+    id("cc-tweaked.java-convention")
+    id("org.spongepowered.gradle.vanilla")
+}
+
+plugins.apply(CCTweakedPlugin::class.java)
+
+val mcVersion: String by extra
+
+minecraft {
+    version(mcVersion)
+}
+
+dependencies {
+    val libs = project.extensions.getByType<VersionCatalogsExtension>().named("libs")
+
+    // Depend on error prone annotations to silence a lot of compile warnings.
+    compileOnlyApi(libs.findLibrary("errorProne.annotations").get())
+}
+
+MinecraftConfigurations.setup(project)
+
+extensions.configure(CCTweakedExtension::class.java) {
+    linters(minecraft = true, loader = null)
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/CCTweakedExtension.kt

@@ -0,0 +1,268 @@
+package cc.tweaked.gradle
+
+import net.ltgt.gradle.errorprone.CheckSeverity
+import net.ltgt.gradle.errorprone.errorprone
+import org.gradle.api.GradleException
+import org.gradle.api.NamedDomainObjectProvider
+import org.gradle.api.Project
+import org.gradle.api.Task
+import org.gradle.api.attributes.TestSuiteType
+import org.gradle.api.file.FileSystemOperations
+import org.gradle.api.plugins.JavaPluginExtension
+import org.gradle.api.provider.Provider
+import org.gradle.api.provider.SetProperty
+import org.gradle.api.reporting.ReportingExtension
+import org.gradle.api.tasks.SourceSet
+import org.gradle.api.tasks.bundling.Jar
+import org.gradle.api.tasks.compile.JavaCompile
+import org.gradle.api.tasks.javadoc.Javadoc
+import org.gradle.configurationcache.extensions.capitalized
+import org.gradle.language.base.plugins.LifecycleBasePlugin
+import org.gradle.language.jvm.tasks.ProcessResources
+import org.gradle.process.JavaForkOptions
+import org.gradle.testing.jacoco.plugins.JacocoCoverageReport
+import org.gradle.testing.jacoco.plugins.JacocoPluginExtension
+import org.gradle.testing.jacoco.plugins.JacocoTaskExtension
+import org.gradle.testing.jacoco.tasks.JacocoReport
+import org.jetbrains.kotlin.gradle.dsl.KotlinProjectExtension
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import java.io.File
+import java.io.IOException
+import java.net.URI
+import java.net.URL
+import java.util.regex.Pattern
+
+abstract class CCTweakedExtension(
+    private val project: Project,
+    private val fs: FileSystemOperations,
+) {
+    /** Get the hash of the latest git commit. */
+    val gitHash: Provider<String> = gitProvider(project, "<no git hash>") {
+        ProcessHelpers.captureOut("git", "-C", project.rootProject.projectDir.absolutePath, "rev-parse", "HEAD").trim()
+    }
+
+    /** Get the current git branch. */
+    val gitBranch: Provider<String> = gitProvider(project, "<no git branch>") {
+        ProcessHelpers.captureOut("git", "-C", project.rootProject.projectDir.absolutePath, "rev-parse", "--abbrev-ref", "HEAD")
+            .trim()
+    }
+
+    /** Get a list of all contributors to the project. */
+    val gitContributors: Provider<List<String>> = gitProvider(project, listOf()) {
+        ProcessHelpers.captureLines(
+            "git", "-C", project.rootProject.projectDir.absolutePath, "shortlog", "-ns",
+            "--group=author", "--group=trailer:co-authored-by", "HEAD",
+        )
+            .asSequence()
+            .map {
+                val matcher = COMMIT_COUNTS.matcher(it)
+                matcher.find()
+                matcher.group(1)
+            }
+            .filter { !IGNORED_USERS.contains(it) }
+            .toList()
+            .sortedWith(String.CASE_INSENSITIVE_ORDER)
+    }
+
+    /**
+     * References to other sources
+     */
+    val sourceDirectories: SetProperty<SourceSetReference> = project.objects.setProperty(SourceSetReference::class.java)
+
+    /** All source sets referenced by this project. */
+    val sourceSets = sourceDirectories.map { x -> x.map { it.sourceSet } }
+
+    init {
+        sourceDirectories.finalizeValueOnRead()
+        project.afterEvaluate { sourceDirectories.disallowChanges() }
+    }
+
+    /**
+     * Mark this project as consuming another project. Its [sourceDirectories] are added, allowing easier configuration
+     * of run configurations and other tasks which consume sources/classes.
+     */
+    fun externalSources(project: Project) {
+        val otherCct = project.extensions.getByType(CCTweakedExtension::class.java)
+        for (sourceSet in otherCct.sourceDirectories.get()) {
+            sourceDirectories.add(SourceSetReference(sourceSet.sourceSet, classes = sourceSet.classes, external = true))
+        }
+    }
+
+    /**
+     * Add a dependency on another project such that its sources and compiles are processed with this one.
+     *
+     * This is used when importing a common library into a loader-specific one, as we want to compile sources using
+     * the loader-specific sources.
+     */
+    fun inlineProject(path: String) {
+        val otherProject = project.evaluationDependsOn(path)
+        val otherJava = otherProject.extensions.getByType(JavaPluginExtension::class.java)
+        val main = otherJava.sourceSets.getByName("main")
+        val client = otherJava.sourceSets.getByName("client")
+        val testMod = otherJava.sourceSets.findByName("testMod")
+        val testFixtures = otherJava.sourceSets.findByName("testFixtures")
+
+        // Pull in sources from the other project.
+        extendSourceSet(otherProject, main)
+        extendSourceSet(otherProject, client)
+        if (testMod != null) extendSourceSet(otherProject, testMod)
+        if (testFixtures != null) extendSourceSet(otherProject, testFixtures)
+
+        // The extra source-processing tasks should include these files too.
+        project.tasks.named(main.javadocTaskName, Javadoc::class.java) { source(main.allJava, client.allJava) }
+        project.tasks.named(main.sourcesJarTaskName, Jar::class.java) { from(main.allSource, client.allSource) }
+        sourceDirectories.addAll(SourceSetReference.inline(main), SourceSetReference.inline(client))
+    }
+
+    /**
+     * Extend a source set with files from another project.
+     *
+     * This actually extends the original compile tasks, as extending the source sets does not play well with IDEs.
+     */
+    private fun extendSourceSet(otherProject: Project, sourceSet: SourceSet) {
+        project.tasks.named(sourceSet.compileJavaTaskName, JavaCompile::class.java) {
+            dependsOn(otherProject.tasks.named(sourceSet.compileJavaTaskName)) // Avoid duplicate compile errors
+            source(sourceSet.allJava)
+        }
+
+        project.tasks.named(sourceSet.processResourcesTaskName, ProcessResources::class.java) {
+            from(sourceSet.resources)
+        }
+
+        // Also try to depend on Kotlin if it exists
+        val kotlin = otherProject.extensions.findByType(KotlinProjectExtension::class.java)
+        if (kotlin != null) {
+            val compileKotlin = sourceSet.getCompileTaskName("kotlin")
+            project.tasks.named(compileKotlin, KotlinCompile::class.java) {
+                dependsOn(otherProject.tasks.named(compileKotlin))
+                source(kotlin.sourceSets.getByName(sourceSet.name).kotlin)
+            }
+        }
+
+        // If we're doing an IDE sync, add a fake dependency to ensure it's on the classpath.
+        if (isIdeSync) project.dependencies.add(sourceSet.apiConfigurationName, sourceSet.output)
+    }
+
+    fun linters(@Suppress("UNUSED_PARAMETER") vararg unused: UseNamedArgs, minecraft: Boolean, loader: String?) {
+        val java = project.extensions.getByType(JavaPluginExtension::class.java)
+        val sourceSets = java.sourceSets
+
+        project.dependencies.run { add("errorprone", project(mapOf("path" to ":lints"))) }
+        sourceSets.all {
+            val name = name
+            project.tasks.named(compileJavaTaskName, JavaCompile::class.java) {
+                options.errorprone {
+                    // Only the main source set should run the side checker
+                    check("SideChecker", if (minecraft && name == "main") CheckSeverity.DEFAULT else CheckSeverity.OFF)
+
+                    // The MissingLoaderOverride check superseeds the MissingOverride one, so disable that.
+                    if (loader != null) {
+                        check("MissingOverride", CheckSeverity.OFF)
+                        option("ModLoader", loader)
+                    } else {
+                        check("LoaderOverride", CheckSeverity.OFF)
+                        check("MissingLoaderOverride", CheckSeverity.OFF)
+                    }
+                }
+            }
+        }
+    }
+
+    fun <T> jacoco(task: NamedDomainObjectProvider<T>) where T : Task, T : JavaForkOptions {
+        val classDump = project.buildDir.resolve("jacocoClassDump/${task.name}")
+        val reportTaskName = "jacoco${task.name.capitalized()}Report"
+
+        val jacoco = project.extensions.getByType(JacocoPluginExtension::class.java)
+        task.configure {
+            finalizedBy(reportTaskName)
+
+            doFirst("Clean class dump directory") { fs.delete { delete(classDump) } }
+
+            jacoco.applyTo(this)
+            extensions.configure(JacocoTaskExtension::class.java) {
+                includes = listOf("dan200.computercraft.*")
+                classDumpDir = classDump
+
+                // Older versions of modlauncher don't include a protection domain (and thus no code
+                // source). Jacoco skips such classes by default, so we need to explicitly include them.
+                isIncludeNoLocationClasses = true
+            }
+        }
+
+        project.tasks.register(reportTaskName, JacocoReport::class.java) {
+            group = LifecycleBasePlugin.VERIFICATION_GROUP
+            description = "Generates code coverage report for the ${task.name} task."
+
+            executionData(task.get())
+            classDirectories.from(classDump)
+
+            // Don't want to use sourceSets(...) here as we have a custom class directory.
+            for (ref in sourceSets.get()) sourceDirectories.from(ref.allSource.sourceDirectories)
+        }
+
+        project.extensions.configure(ReportingExtension::class.java) {
+            reports.register("${task.name}CodeCoverageReport", JacocoCoverageReport::class.java) {
+                testType.set(TestSuiteType.INTEGRATION_TEST)
+            }
+        }
+    }
+
+    /**
+     * Download a file by creating a dummy Ivy repository.
+     *
+     * This should only be used for one-off downloads. Using a more conventional Ivy or Maven repository is preferred
+     * where possible.
+     */
+    fun downloadFile(label: String, url: String): File {
+        val url = URL(url)
+        val path = File(url.path)
+
+        project.repositories.ivy {
+            name = label
+            setUrl(URI(url.protocol, url.userInfo, url.host, url.port, path.parent, null, null))
+            patternLayout {
+                artifact("[artifact].[ext]")
+            }
+            metadataSources {
+                artifact()
+            }
+            content {
+                includeModule("cc.tweaked.internal", path.nameWithoutExtension)
+            }
+        }
+
+        return project.configurations.detachedConfiguration(
+            project.dependencies.create(
+                mapOf(
+                    "group" to "cc.tweaked.internal",
+                    "name" to path.nameWithoutExtension,
+                    "ext" to path.extension,
+                ),
+            ),
+        ).resolve().single()
+    }
+
+    companion object {
+        private val COMMIT_COUNTS = Pattern.compile("""^\s*[0-9]+\s+(.*)$""")
+        private val IGNORED_USERS = setOf(
+            "GitHub", "Daniel Ratcliffe", "Weblate",
+        )
+
+        private fun <T> gitProvider(project: Project, default: T, supplier: () -> T): Provider<T> {
+            return project.provider {
+                try {
+                    supplier()
+                } catch (e: IOException) {
+                    project.logger.error("Cannot read Git repository: ${e.message}")
+                    default
+                } catch (e: GradleException) {
+                    project.logger.error("Cannot read Git repository: ${e.message}")
+                    default
+                }
+            }
+        }
+
+        private val isIdeSync: Boolean
+            get() = java.lang.Boolean.parseBoolean(System.getProperty("idea.sync.active", "false"))
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/CCTweakedPlugin.kt

@@ -0,0 +1,25 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.plugins.JavaPlugin
+import org.gradle.api.plugins.JavaPluginExtension
+import org.gradle.jvm.toolchain.JavaLanguageVersion
+
+/**
+ * Configures projects to match a shared configuration.
+ */
+class CCTweakedPlugin : Plugin<Project> {
+    override fun apply(project: Project) {
+        val cct = project.extensions.create("cct", CCTweakedExtension::class.java)
+
+        project.plugins.withType(JavaPlugin::class.java) {
+            val sourceSets = project.extensions.getByType(JavaPluginExtension::class.java).sourceSets
+            cct.sourceDirectories.add(SourceSetReference.internal(sourceSets.getByName("main")))
+        }
+    }
+
+    companion object {
+        val JAVA_VERSION = JavaLanguageVersion.of(17)
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/CheckChangelog.kt

@@ -0,0 +1,64 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.*
+import org.gradle.language.base.plugins.LifecycleBasePlugin
+
+/**
+ * Checks the `changelog.md` and `whatsnew.md` files are well-formed.
+ */
+@CacheableTask
+abstract class CheckChangelog : DefaultTask() {
+    init {
+        group = LifecycleBasePlugin.VERIFICATION_GROUP
+        description = "Verifies the changelog and whatsnew file are consistent."
+    }
+
+    @get:Input
+    abstract val version: Property<String>
+
+    @get:InputFile
+    @get:PathSensitive(PathSensitivity.NONE)
+    abstract val changelog: RegularFileProperty
+
+    @get:InputFile
+    @get:PathSensitive(PathSensitivity.NONE)
+    abstract val whatsNew: RegularFileProperty
+
+    @TaskAction
+    fun check() {
+        val version = version.get()
+
+        var ok = true
+
+        // Check we're targeting the current version
+        var whatsNew = whatsNew.get().asFile.readLines()
+        if (whatsNew[0] != "New features in CC: Tweaked $version") {
+            ok = false
+            logger.error("Expected `whatsnew.md' to target $version.")
+        }
+
+        // Check "read more" exists and trim it
+        val idx = whatsNew.indexOfFirst { it == "Type \"help changelog\" to see the full version history." }
+        if (idx == -1) {
+            ok = false
+            logger.error("Must mention the changelog in whatsnew.md")
+        } else {
+            whatsNew = whatsNew.slice(0 until idx)
+        }
+
+        // Check whatsnew and changelog match.
+        val expectedChangelog = sequenceOf("# ${whatsNew[0]}") + whatsNew.slice(1 until whatsNew.size).asSequence()
+        val changelog = changelog.get().asFile.readLines()
+        val mismatch = expectedChangelog.zip(changelog.asSequence()).filter { (a, b) -> a != b }.firstOrNull()
+        if (mismatch != null) {
+            ok = false
+            logger.error("whatsnew and changelog are not in sync")
+        }
+
+        if (!ok) throw GradleException("Could not check release")
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/CheckLicense.kt

@@ -0,0 +1,72 @@
+package cc.tweaked.gradle
+
+import com.diffplug.spotless.FormatterFunc
+import com.diffplug.spotless.FormatterStep
+import com.diffplug.spotless.generic.LicenseHeaderStep
+import java.io.File
+import java.io.Serializable
+
+/**
+ * Similar to [LicenseHeaderStep], but supports multiple licenses.
+ */
+object LicenseHeader {
+    /**
+     * The current year to use in templates. Intentionally not dynamic to avoid failing the build.
+     */
+    private const val YEAR = 2022
+
+    private val COMMENT = Regex("""^/\*(.*?)\*/\n?""", RegexOption.DOT_MATCHES_ALL)
+
+    fun create(api: File, main: File): FormatterStep = FormatterStep.createLazy(
+        "license",
+        { Licenses(getTemplateText(api), getTemplateText(main)) },
+        { state -> FormatterFunc.NeedsFile { contents, file -> formatFile(state, contents, file) } },
+    )
+
+    private fun getTemplateText(file: File): String =
+        file.readText().trim().replace("\${year}", "$YEAR")
+
+    private fun formatFile(licenses: Licenses, contents: String, file: File): String {
+        val license = getLicense(contents)
+        val expectedLicense = getExpectedLicense(licenses, file.parentFile)
+
+        return when {
+            license == null -> setLicense(expectedLicense, contents)
+            license.second != expectedLicense -> setLicense(expectedLicense, contents, license.first)
+            else -> contents
+        }
+    }
+
+    private fun getExpectedLicense(licenses: Licenses, root: File): String {
+        var file: File? = root
+        while (file != null) {
+            if (file.name == "api" && file.parentFile?.name == "computercraft") return licenses.api
+            file = file.parentFile
+        }
+        return licenses.main
+    }
+
+    private fun getLicense(contents: String): Pair<Int, String>? {
+        val match = COMMENT.find(contents) ?: return null
+        val license = match.groups[1]!!.value
+            .trim().lineSequence()
+            .map { it.trimStart(' ', '*') }
+            .joinToString("\n")
+        return Pair(match.range.last + 1, license)
+    }
+
+    private fun setLicense(license: String, contents: String, start: Int = 0): String {
+        val out = StringBuilder()
+        out.append("/*\n")
+        for (line in license.lineSequence()) out.append(" * ").append(line).append("\n")
+        out.append(" */\n")
+        out.append(contents, start, contents.length)
+        return out.toString()
+    }
+
+    private data class Licenses(val api: String, val main: String) : Serializable {
+        companion object {
+            private const val serialVersionUID: Long = 7741106448372435662L
+        }
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/ExecTasks.kt

@@ -0,0 +1,11 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.AbstractExecTask
+import org.gradle.api.tasks.OutputDirectory
+import java.io.File
+
+abstract class ExecToDir : AbstractExecTask<ExecToDir>(ExecToDir::class.java) {
+    @get:OutputDirectory
+    abstract val output: Property<File>
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/Extensions.kt

@@ -0,0 +1,117 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.artifacts.dsl.DependencyHandler
+import org.gradle.api.tasks.JavaExec
+import org.gradle.process.BaseExecSpec
+import org.gradle.process.JavaExecSpec
+import org.gradle.process.ProcessForkOptions
+
+/**
+ * Add an annotation processor to all source sets.
+ */
+fun DependencyHandler.annotationProcessorEverywhere(dep: Any) {
+    add("compileOnly", dep)
+    add("annotationProcessor", dep)
+
+    add("clientCompileOnly", dep)
+    add("clientAnnotationProcessor", dep)
+
+    add("testCompileOnly", dep)
+    add("testAnnotationProcessor", dep)
+}
+
+/**
+ * A version of [JavaExecSpec.copyTo] which copies *all* properties.
+ */
+fun JavaExec.copyToFull(spec: JavaExec) {
+    copyTo(spec)
+
+    // Additional Java options
+    spec.jvmArgs = jvmArgs // Fabric overrides getJvmArgs so copyTo doesn't do the right thing.
+    spec.args = args
+    spec.argumentProviders.addAll(argumentProviders)
+    spec.mainClass.set(mainClass)
+    spec.classpath = classpath
+    spec.javaLauncher.set(javaLauncher)
+    if (executable != null) spec.setExecutable(executable!!)
+
+    // Additional ExecSpec options
+    copyToExec(spec)
+}
+
+/**
+ * Copy additional [BaseExecSpec] options which aren't handled by [ProcessForkOptions.copyTo].
+ */
+fun BaseExecSpec.copyToExec(spec: BaseExecSpec) {
+    spec.isIgnoreExitValue = isIgnoreExitValue
+    if (standardInput != null) spec.standardInput = standardInput
+    if (standardOutput != null) spec.standardOutput = standardOutput
+    if (errorOutput != null) spec.errorOutput = errorOutput
+}
+
+/**
+ * An alternative to [Nothing] with a more descriptive name. Use to enforce calling a function with named arguments:
+ *
+ * ```kotlin
+ * fun f(vararg unused: UseNamedArgs, arg1: Int, arg2: Int) {
+ *   // ...
+ * }
+ * ```
+ */
+class UseNamedArgs private constructor()
+
+/**
+ * An [AutoCloseable] implementation which can be used to combine other [AutoCloseable] instances.
+ *
+ * Values which implement [AutoCloseable] can be dynamically registered with [CloseScope.add]. When the scope is closed,
+ * each value is closed in the opposite order.
+ *
+ * This is largely intended for cases where it's not appropriate to nest [AutoCloseable.use], for instance when nested
+ * would be too deep.
+ */
+class CloseScope : AutoCloseable {
+    private val toClose = ArrayDeque<AutoCloseable>()
+
+    /**
+     * Add a value to be closed when this scope is closed.
+     */
+    public fun add(value: AutoCloseable) {
+        toClose.addLast(value)
+    }
+
+    override fun close() {
+        close(null)
+    }
+
+    @PublishedApi
+    internal fun close(baseException: Throwable?) {
+        var exception = baseException
+
+        while (true) {
+            var toClose = toClose.removeLastOrNull() ?: break
+            try {
+                toClose.close()
+            } catch (e: Throwable) {
+                if (exception == null) {
+                    exception = e
+                } else {
+                    exception.addSuppressed(e)
+                }
+            }
+        }
+
+        if (exception != null) throw exception
+    }
+
+    inline fun <R> use(block: (CloseScope) -> R): R {
+        var exception: Throwable? = null
+        try {
+            return block(this)
+        } catch (e: Throwable) {
+            exception = e
+            throw e
+        } finally {
+            close(exception)
+        }
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/IdeaRunConfigurations.kt

@@ -0,0 +1,170 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.Project
+import org.gradle.api.logging.Logging
+import org.w3c.dom.Attr
+import org.w3c.dom.Document
+import org.w3c.dom.Node
+import org.xml.sax.InputSource
+import java.nio.file.Files
+import java.nio.file.Path
+import javax.xml.parsers.DocumentBuilderFactory
+import javax.xml.transform.TransformerFactory
+import javax.xml.transform.dom.DOMSource
+import javax.xml.transform.stream.StreamResult
+import javax.xml.xpath.XPathConstants
+import javax.xml.xpath.XPathFactory
+
+/**
+ * Patches up run configurations from ForgeGradle and Loom.
+ *
+ * Would be good to PR some (or all) of these changes upstream at some point.
+ *
+ * @see net.fabricmc.loom.configuration.ide.idea.IdeaSyncTask
+ * @see net.minecraftforge.gradle.common.util.runs.IntellijRunGenerator
+ */
+internal class IdeaRunConfigurations(project: Project) {
+    private val rootProject = project.rootProject
+
+    private val documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder()
+    private val xpath = XPathFactory.newInstance().newXPath()
+    private val writer = TransformerFactory.newInstance().newTransformer()
+
+    private val ideaDir = rootProject.file(".idea/")
+    private val buildDir: Lazy<String?> = lazy {
+        val ideaMisc = ideaDir.resolve("misc.xml")
+
+        try {
+            val doc = Files.newBufferedReader(ideaMisc.toPath()).use {
+                documentBuilder.parse(InputSource(it))
+            }
+            val node =
+                xpath.evaluate("//component[@name=\"ProjectRootManager\"]/output", doc, XPathConstants.NODE) as Node
+            val attr = node.attributes.getNamedItem("url") as Attr
+            attr.value.removePrefix("file://")
+        } catch (e: Exception) {
+            LOGGER.error("Failed to find root directory", e)
+            null
+        }
+    }
+
+    fun patch() = synchronized(LOCK) {
+        val runConfigDir = ideaDir.resolve("runConfigurations")
+        if (!runConfigDir.isDirectory) return
+
+        Files.list(runConfigDir.toPath()).use {
+            for (configuration in it) {
+                val filename = configuration.fileName.toString();
+                when {
+                    filename.endsWith("_fabric.xml") -> patchFabric(configuration)
+                    filename.startsWith("forge_") && filename.endsWith(".xml") -> patchForge(configuration)
+                    else -> {}
+                }
+            }
+        }
+    }
+
+    private fun patchFabric(path: Path) = withXml(path) {
+        setXml("//configuration", "folderName") { "Fabric" }
+    }
+
+    private fun patchForge(path: Path) = withXml(path) {
+        val configId = path.fileName.toString().removePrefix("forge_").removeSuffix(".xml")
+        val sourceSet = forgeConfigs[configId]
+        if (sourceSet == null) {
+            LOGGER.error("[{}] Cannot map run configuration to a known source set", path)
+            return@withXml
+        }
+
+        setXml("//configuration", "folderName") { "Forge" }
+        setXml("//configuration/module", "name") { "${rootProject.name}.forge.$sourceSet" }
+
+        if (buildDir.value == null) return@withXml
+        setXml("//configuration/envs/env[@name=\"MOD_CLASSES\"]", "value") { classpath ->
+            val classes = classpath!!.split(':')
+            val newClasses = mutableListOf<String>()
+            fun appendUnique(x: String) {
+                if (!newClasses.contains(x)) newClasses.add(x)
+            }
+
+            for (entry in classes) {
+                if (!entry.contains("/out/")) {
+                    appendUnique(entry)
+                    continue
+                }
+
+                val match = CLASSPATH_ENTRY.matchEntire(entry)
+                if (match != null) {
+                    val modId = match.groups["modId"]!!.value
+                    val proj = match.groups["proj"]!!.value
+                    var component = match.groups["component"]!!.value
+                    if (component == "production") component = "main"
+
+                    appendUnique(forgeModEntry(modId, proj, component))
+                } else {
+                    LOGGER.warn("[{}] Unknown classpath entry {}", path, entry)
+                    appendUnique(entry)
+                }
+            }
+
+            // Ensure common code is on the classpath
+            for (proj in listOf("common", "common-api")) {
+                for (component in listOf("main", "client")) {
+                    appendUnique(forgeModEntry("computercraft", proj, component))
+                }
+            }
+
+            if (newClasses.any { it.startsWith("cctest%%") }) {
+                appendUnique(forgeModEntry("cctest", "core", "testFixtures"))
+                appendUnique(forgeModEntry("cctest", "common", "testFixtures"))
+                appendUnique(forgeModEntry("cctest", "common", "testMod"))
+            }
+
+            newClasses.joinToString(":")
+        }
+    }
+
+    private fun forgeModEntry(mod: String, project: String, component: String) =
+        "$mod%%${buildDir.value}/production/${rootProject.name}.$project.$component"
+
+    private fun LocatedDocument.setXml(xpath: String, attribute: String, value: (String?) -> String) {
+        val node = this@IdeaRunConfigurations.xpath.evaluate(xpath, document, XPathConstants.NODE) as Node?
+        if (node == null) {
+            LOGGER.error("[{}] Cannot find {}", path.fileName, xpath)
+            return
+        }
+
+        val attr = node.attributes.getNamedItem(attribute) as Attr? ?: document.createAttribute(attribute)
+        val oldValue = attr.value
+        attr.value = value(attr.value)
+        node.attributes.setNamedItem(attr)
+
+        if (oldValue != attr.value) {
+            LOGGER.info("[{}] Setting {}@{}:\n  Old: {}\n  New: {}", path.fileName, xpath, attribute, oldValue, attr.value)
+        }
+    }
+
+    private fun withXml(path: Path, run: LocatedDocument.() -> Unit) {
+        val doc = Files.newBufferedReader(path).use { documentBuilder.parse(InputSource(it)) }
+        run(LocatedDocument(path, doc))
+        Files.newBufferedWriter(path).use { writer.transform(DOMSource(doc), StreamResult(it)) }
+    }
+
+    private class LocatedDocument(val path: Path, val document: Document)
+
+    companion object {
+        private val LOGGER = Logging.getLogger(IdeaRunConfigurations::class.java)
+        private val LOCK = Any()
+
+        private val CLASSPATH_ENTRY =
+            Regex("(?<modId>[a-z]+)%%\\\$PROJECT_DIR\\\$/projects/(?<proj>[a-z-]+)/out/(?<component>\\w+)/(?<type>[a-z]+)\$")
+
+        private val forgeConfigs = mapOf(
+            "runClient" to "client",
+            "runData" to "main",
+            "runGameTestServer" to "testMod",
+            "runServer" to "main",
+            "runTestClient" to "testMod",
+        )
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/Illuaminate.kt

@@ -0,0 +1,123 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.Task
+import org.gradle.api.artifacts.Dependency
+import org.gradle.api.provider.Property
+import org.gradle.api.provider.Provider
+import org.gradle.api.tasks.AbstractExecTask
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.TaskAction
+import java.io.File
+
+abstract class IlluaminateExtension {
+    /** The version of illuaminate to use. */
+    abstract val version: Property<String>
+
+    /** The path to illuaminate. If not given, illuaminate will be downloaded automatically. */
+    abstract val file: Property<File>
+}
+
+class IlluaminatePlugin : Plugin<Project> {
+    override fun apply(project: Project) {
+        val extension = project.extensions.create("illuaminate", IlluaminateExtension::class.java)
+        extension.file.convention(setupDependency(project, extension.version))
+
+        project.tasks.register(SetupIlluaminate.NAME, SetupIlluaminate::class.java) {
+            file.set(extension.file.map { it.absolutePath })
+        }
+    }
+
+    /** Set up a repository for illuaminate and download our binary from it. */
+    private fun setupDependency(project: Project, version: Provider<String>): Provider<File> {
+        project.repositories.ivy {
+            name = "Illuaminate"
+            setUrl("https://squiddev.cc/illuaminate/bin/")
+            patternLayout {
+                artifact("[revision]/[artifact]-[ext]")
+            }
+            metadataSources {
+                artifact()
+            }
+            content {
+                includeModule("cc.squiddev", "illuaminate")
+            }
+        }
+
+        return version.map {
+            val dep = illuaminateArtifact(project, it)
+            val configuration = project.configurations.detachedConfiguration(dep)
+            configuration.isTransitive = false
+            configuration.resolve().single()
+        }
+    }
+
+    /** Define a dependency for illuaminate from a version number and the current operating system. */
+    private fun illuaminateArtifact(project: Project, version: String): Dependency {
+        val osName = System.getProperty("os.name").toLowerCase()
+        val (os, suffix) = when {
+            osName.contains("windows") -> Pair("windows", ".exe")
+            osName.contains("mac os") || osName.contains("darwin") -> Pair("macos", "")
+            osName.contains("linux") -> Pair("linux", "")
+            else -> error("Unsupported OS $osName for illuaminate")
+        }
+
+        val osArch = System.getProperty("os.arch").toLowerCase()
+        val arch = when {
+            // On macOS the x86_64 binary will work for both ARM and Intel Macs through Rosetta.
+            os == "macos" -> "x86_64"
+            osArch == "arm" || osArch.startsWith("aarch") -> error("Unsupported architecture '$osArch' for illuaminate")
+            osArch.contains("64") -> "x86_64"
+            else -> error("Unsupported architecture '$osArch' for illuaminate")
+        }
+
+        return project.dependencies.create(
+            mapOf(
+                "group" to "cc.squiddev",
+                "name" to "illuaminate",
+                "version" to version,
+                "ext" to "$os-$arch$suffix",
+            ),
+        )
+    }
+}
+
+private val Task.illuaminatePath: String? // "?" needed to avoid overload ambiguity in setExecutable below.
+    get() = project.extensions.getByType(IlluaminateExtension::class.java).file.get().absolutePath
+
+/** Prepares illuaminate for being run. This simply requests the dependency and then marks it as executable. */
+abstract class SetupIlluaminate : DefaultTask() {
+    @get:Input
+    abstract val file: Property<String>
+
+    @TaskAction
+    fun setExecutable() {
+        val file = File(this.file.get())
+        if (file.canExecute()) {
+            didWork = false
+            return
+        }
+
+        file.setExecutable(true)
+    }
+
+    companion object {
+        const val NAME: String = "setupIlluaminate"
+    }
+}
+
+abstract class IlluaminateExec : AbstractExecTask<IlluaminateExec>(IlluaminateExec::class.java) {
+    init {
+        dependsOn(SetupIlluaminate.NAME)
+        executable = illuaminatePath
+    }
+}
+
+abstract class IlluaminateExecToDir : ExecToDir() {
+    init {
+        dependsOn(SetupIlluaminate.NAME)
+        executable = illuaminatePath
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/MavenDependencySpec.kt

@@ -0,0 +1,62 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.artifacts.Dependency
+import org.gradle.api.artifacts.MinimalExternalModuleDependency
+import org.gradle.api.publish.maven.MavenPublication
+import org.gradle.api.specs.Spec
+
+/**
+ * A dependency in a POM file.
+ */
+data class MavenDependency(val groupId: String?, val artifactId: String?, val version: String?, val scope: String?)
+
+/**
+ * A spec specifying which dependencies to include/exclude.
+ */
+class MavenDependencySpec {
+    private val excludeSpecs = mutableListOf<Spec<MavenDependency>>()
+
+    fun exclude(spec: Spec<MavenDependency>) {
+        excludeSpecs.add(spec)
+    }
+
+    fun exclude(dep: Dependency) {
+        exclude {
+            (dep.group.isNullOrEmpty() || dep.group == it.groupId) &&
+                (dep.name.isNullOrEmpty() || dep.name == it.artifactId) &&
+                (dep.version.isNullOrEmpty() || dep.version == it.version)
+        }
+    }
+
+    fun exclude(dep: MinimalExternalModuleDependency) {
+        exclude {
+            dep.module.group == it.groupId && dep.module.name == it.artifactId
+        }
+    }
+
+    fun isIncluded(dep: MavenDependency) = !excludeSpecs.any { it.isSatisfiedBy(dep) }
+}
+
+/**
+ * Configure dependencies present in this publication's POM file.
+ *
+ * While this approach is very ugly, it's the easiest way to handle it!
+ */
+fun MavenPublication.mavenDependencies(action: MavenDependencySpec.() -> Unit) {
+    val spec = MavenDependencySpec()
+    action(spec)
+
+    pom.withXml {
+        val dependencies = XmlUtil.findChild(asNode(), "dependencies") ?: return@withXml
+        dependencies.children().map { it as groovy.util.Node }.forEach {
+            val dep = MavenDependency(
+                groupId = XmlUtil.findChild(it, "groupId")?.text(),
+                artifactId = XmlUtil.findChild(it, "artifactId")?.text(),
+                version = XmlUtil.findChild(it, "version")?.text(),
+                scope = XmlUtil.findChild(it, "scope")?.text(),
+            )
+
+            if (!spec.isIncluded(dep)) it.parent().remove(it)
+        }
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/MinecraftConfigurations.kt

@@ -0,0 +1,189 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.Project
+import org.gradle.api.artifacts.Configuration
+import org.gradle.api.artifacts.ModuleDependency
+import org.gradle.api.artifacts.dsl.DependencyHandler
+import org.gradle.api.attributes.Bundling
+import org.gradle.api.attributes.Category
+import org.gradle.api.attributes.LibraryElements
+import org.gradle.api.attributes.Usage
+import org.gradle.api.attributes.java.TargetJvmVersion
+import org.gradle.api.capabilities.Capability
+import org.gradle.api.plugins.BasePlugin
+import org.gradle.api.plugins.JavaPluginExtension
+import org.gradle.api.tasks.SourceSet
+import org.gradle.api.tasks.bundling.Jar
+import org.gradle.api.tasks.javadoc.Javadoc
+import org.gradle.kotlin.dsl.get
+import org.gradle.kotlin.dsl.named
+
+/**
+ * This sets up a separate client-only source set, and extends that and the main/common source set with additional
+ * metadata, to make it easier to consume jars downstream.
+ */
+class MinecraftConfigurations private constructor(private val project: Project) {
+    private val java = project.extensions.getByType(JavaPluginExtension::class.java)
+    private val sourceSets = java.sourceSets
+    private val configurations = project.configurations
+    private val objects = project.objects
+
+    private val main = sourceSets[SourceSet.MAIN_SOURCE_SET_NAME]
+    private val test = sourceSets[SourceSet.TEST_SOURCE_SET_NAME]
+
+    /**
+     * Performs the initial setup of our configurations.
+     */
+    private fun setup() {
+        // Define a client source set.
+        val client = sourceSets.maybeCreate("client")
+
+        // Ensure the client classpaths behave the same as the main ones.
+        configurations.named(client.compileClasspathConfigurationName) {
+            shouldResolveConsistentlyWith(configurations[main.compileClasspathConfigurationName])
+        }
+
+        configurations.named(client.runtimeClasspathConfigurationName) {
+            shouldResolveConsistentlyWith(configurations[main.runtimeClasspathConfigurationName])
+        }
+
+        // Set up an API configuration for clients (to ensure it's consistent with the main source set).
+        val clientApi = configurations.maybeCreate(client.apiConfigurationName).apply {
+            isVisible = false
+            isCanBeConsumed = false
+            isCanBeResolved = false
+        }
+        configurations.named(client.implementationConfigurationName) { extendsFrom(clientApi) }
+
+        /*
+          Now add outgoing variants for the main and common source sets that we can consume downstream. This is possibly
+          the worst way to do things, but unfortunately the alternatives don't actually work very well:
+
+           - Just using source set outputs: This means dependencies don't propagate, which means when :fabric depends
+             on :fabric-api, we don't inherit the fake :common-api in IDEA.
+
+           - Having separate common/main jars: Nice in principle, but unfortunately Forge needs a separate deobf jar
+             task (as the original jar is obfuscated), and IDEA is not able to map its output back to a source set.
+
+          This works for now, but is incredibly brittle. It's part of the reason we can't use testFixtures inside our
+          MC projects, as that adds a project(self) -> test dependency, which would pull in the jar instead.
+
+          Note we register a fake client jar here. It's not actually needed, but is there to make sure IDEA has
+          a way to tell that client classes are needed at runtime.
+
+          I'm so sorry, deeply aware how cursed this is.
+        */
+        setupOutgoing(main, "CommonOnly")
+        project.tasks.register(client.jarTaskName, Jar::class.java) {
+            description = "An empty jar standing in for the client classes."
+            group = BasePlugin.BUILD_GROUP
+            archiveClassifier.set("client")
+        }
+        setupOutgoing(client)
+
+        // Reset the client classpath (Loom configures it slightly differently to this) and add a main -> client
+        // dependency. Here we /can/ use source set outputs as we add transitive deps by patching the classpath. Nasty,
+        // but avoids accidentally pulling in Forge's obfuscated jar.
+        client.compileClasspath = client.compileClasspath + main.compileClasspath
+        client.runtimeClasspath = client.runtimeClasspath + main.runtimeClasspath
+        project.dependencies.add(client.apiConfigurationName, main.output)
+
+        // Also add client classes to the test classpath. We do the same nasty tricks as needed for main -> client.
+        test.compileClasspath += client.compileClasspath
+        test.runtimeClasspath += client.runtimeClasspath
+        project.dependencies.add(test.implementationConfigurationName, client.output)
+
+        // Configure some tasks to include our additional files.
+        project.tasks.named("javadoc", Javadoc::class.java) {
+            source(client.allJava)
+            classpath = main.compileClasspath + main.output + client.compileClasspath + client.output
+        }
+        // This are already done by Fabric, but we need it for Forge and vanilla. It shouldn't conflict at all.
+        project.tasks.named("jar", Jar::class.java) { from(client.output) }
+        project.tasks.named("sourcesJar", Jar::class.java) { from(client.allSource) }
+
+        project.extensions.configure(CCTweakedExtension::class.java) {
+            sourceDirectories.add(SourceSetReference.internal(client))
+        }
+    }
+
+    private fun setupOutgoing(sourceSet: SourceSet, suffix: String = "") {
+        setupOutgoing("${sourceSet.apiElementsConfigurationName}$suffix", sourceSet, objects.named(Usage.JAVA_API)) {
+            description = "API elements for ${sourceSet.name}"
+            extendsFrom(configurations[sourceSet.apiConfigurationName])
+        }
+
+        setupOutgoing("${sourceSet.runtimeElementsConfigurationName}$suffix", sourceSet, objects.named(Usage.JAVA_RUNTIME)) {
+            description = "Runtime elements for ${sourceSet.name}"
+            extendsFrom(configurations[sourceSet.implementationConfigurationName], configurations[sourceSet.runtimeOnlyConfigurationName])
+        }
+    }
+
+    /**
+     * Set up an outgoing configuration for a specific source set. We set an additional "main" or "client" capability
+     * (depending on the source set name) which allows downstream projects to consume them separately (see
+     * [DependencyHandler.commonClasses] and [DependencyHandler.clientClasses]).
+     */
+    private fun setupOutgoing(name: String, sourceSet: SourceSet, usage: Usage, configure: Configuration.() -> Unit) {
+        configurations.register(name) {
+            isVisible = false
+            isCanBeConsumed = true
+            isCanBeResolved = false
+
+            configure(this)
+
+            attributes {
+                attribute(Category.CATEGORY_ATTRIBUTE, objects.named(Category.LIBRARY))
+                attribute(Usage.USAGE_ATTRIBUTE, usage)
+                attribute(Bundling.BUNDLING_ATTRIBUTE, objects.named(Bundling.EXTERNAL))
+                attributeProvider(
+                    TargetJvmVersion.TARGET_JVM_VERSION_ATTRIBUTE,
+                    java.toolchain.languageVersion.map { it.asInt() },
+                )
+                attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, objects.named(LibraryElements.JAR))
+            }
+
+            outgoing {
+                capability(BasicOutgoingCapability(project, sourceSet.name))
+
+                // We have two outgoing variants here: the original jar and the classes.
+                artifact(project.tasks.named(sourceSet.jarTaskName))
+
+                variants.create("classes") {
+                    attributes.attribute(LibraryElements.LIBRARY_ELEMENTS_ATTRIBUTE, objects.named(LibraryElements.CLASSES))
+                    sourceSet.output.classesDirs.forEach { artifact(it) { builtBy(sourceSet.output) } }
+                }
+            }
+        }
+    }
+
+    companion object {
+        fun setup(project: Project) {
+            MinecraftConfigurations(project).setup()
+        }
+    }
+}
+
+private class BasicIncomingCapability(private val module: ModuleDependency, private val name: String) : Capability {
+    override fun getGroup(): String = module.group!!
+    override fun getName(): String = "${module.name}-$name"
+    override fun getVersion(): String? = null
+}
+
+private class BasicOutgoingCapability(private val project: Project, private val name: String) : Capability {
+    override fun getGroup(): String = project.group.toString()
+    override fun getName(): String = "${project.name}-$name"
+    override fun getVersion(): String = project.version.toString()
+}
+
+fun DependencyHandler.clientClasses(notation: Any): ModuleDependency {
+    val dep = create(notation) as ModuleDependency
+    dep.capabilities { requireCapability(BasicIncomingCapability(dep, "client")) }
+    return dep
+}
+
+fun DependencyHandler.commonClasses(notation: Any): ModuleDependency {
+    val dep = create(notation) as ModuleDependency
+    dep.capabilities { requireCapability(BasicIncomingCapability(dep, "main")) }
+    return dep
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/MinecraftExec.kt

@@ -0,0 +1,191 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.GradleException
+import org.gradle.api.file.FileSystemOperations
+import org.gradle.api.invocation.Gradle
+import org.gradle.api.provider.Provider
+import org.gradle.api.services.BuildService
+import org.gradle.api.services.BuildServiceParameters
+import org.gradle.api.tasks.*
+import org.gradle.kotlin.dsl.getByName
+import org.gradle.language.base.plugins.LifecycleBasePlugin
+import java.io.File
+import java.nio.file.Files
+import java.util.concurrent.TimeUnit
+import java.util.function.Supplier
+import javax.inject.Inject
+import kotlin.random.Random
+
+/**
+ * A [JavaExec] task for client-tests. This sets some common setup, and uses [MinecraftRunnerService] to ensure only one
+ * test runs at once.
+ */
+abstract class ClientJavaExec : JavaExec() {
+    private val clientRunner: Provider<MinecraftRunnerService> = MinecraftRunnerService.get(project.gradle)
+
+    init {
+        group = LifecycleBasePlugin.VERIFICATION_GROUP
+        usesService(clientRunner)
+    }
+
+    /**
+     * When [false], tests will not be run automatically, allowing the user to debug rendering.
+     */
+    @get:Input
+    val clientDebug get() = project.hasProperty("clientDebug")
+
+    /**
+     * When [false], tests will not run under a framebuffer.
+     */
+    @get:Input
+    val useFramebuffer get() = !clientDebug && !project.hasProperty("clientNoFramebuffer")
+
+    /**
+     * The path test results are written to.
+     */
+    @get:OutputFile
+    val testResults = project.layout.buildDirectory.file("test-results/$name.xml")
+
+    /**
+     * Copy configuration from a task with the given name.
+     */
+    fun copyFrom(path: String) = copyFrom(project.tasks.getByName(path, JavaExec::class))
+
+    /**
+     * Copy configuration from an existing [JavaExec] task.
+     */
+    fun copyFrom(task: JavaExec) {
+        for (dep in task.dependsOn) dependsOn(dep)
+        task.copyToFull(this)
+
+        if (!clientDebug) systemProperty("cctest.client", "")
+        systemProperty("cctest.gametest-report", testResults.get().asFile.absoluteFile)
+        workingDir(project.buildDir.resolve("gametest").resolve(name))
+    }
+
+    /**
+     * Only run tests with the given tags.
+     */
+    fun tags(vararg tags: String) {
+        systemProperty("cctest.tags", tags.joinToString(","))
+    }
+
+    /**
+     * Write a file with the given contents before starting Minecraft. This may be useful for writing config files.
+     */
+    fun withFileContents(path: Any, contents: Supplier<String>) {
+        val file = project.file(path).toPath()
+        doFirst {
+            Files.createDirectories(file.parent)
+            Files.writeString(file, contents.get())
+        }
+    }
+
+    /**
+     * Copy a file to the provided path before starting Minecraft. This copy only occurs if the file does not already
+     * exist.
+     */
+    fun withFileFrom(path: Any, source: Supplier<File>) {
+        val file = project.file(path).toPath()
+        doFirst {
+            Files.createDirectories(file.parent)
+            if (!Files.exists(file)) Files.copy(source.get().toPath(), file)
+        }
+    }
+
+    @TaskAction
+    override fun exec() {
+        Files.createDirectories(workingDir.toPath())
+        fsOperations.delete { delete(workingDir.resolve("screenshots")) }
+
+        if (useFramebuffer) {
+            clientRunner.get().wrapClient(this) { super.exec() }
+        } else {
+            super.exec()
+        }
+    }
+
+    @get:Inject
+    protected abstract val fsOperations: FileSystemOperations
+}
+
+/**
+ * A service for [JavaExec] tasks which start Minecraft.
+ *
+ * Tasks may run `usesService(MinecraftRunnerService.get(gradle))` to ensure that only one Minecraft-related task runs
+ * at once.
+ */
+abstract class MinecraftRunnerService : BuildService<BuildServiceParameters.None> {
+    private val hasXvfb = lazy {
+        System.getProperty("os.name", "").equals("linux", ignoreCase = true) && ProcessHelpers.onPath("xvfb-run")
+    }
+
+    internal fun wrapClient(exec: JavaExec, run: () -> Unit) = when {
+        hasXvfb.value -> runXvfb(exec, run)
+        else -> run()
+    }
+
+    /**
+     * Run a program under Xvfb, preventing it spawning a window.
+     */
+    private fun runXvfb(exec: JavaExec, run: () -> Unit) {
+        fun ProcessBuilder.startVerbose(): Process {
+            exec.logger.info("Running ${this.command()}")
+            return start()
+        }
+
+        CloseScope().use { scope ->
+            val dir = Files.createTempDirectory("cctweaked").toAbsolutePath()
+            scope.add { fsOperations.delete { delete(dir) } }
+
+            val authFile = Files.createTempFile(dir, "Xauthority", "").toAbsolutePath()
+
+            val cookie = StringBuilder().also {
+                for (i in 0..31) it.append("0123456789abcdef"[Random.nextInt(16)])
+            }.toString()
+
+            val xvfb =
+                ProcessBuilder("Xvfb", "-displayfd", "1", "-screen", "0", "640x480x24", "-nolisten", "tcp").also {
+                    it.inheritIO()
+                    it.environment()["XAUTHORITY"] = authFile.toString()
+                    it.redirectOutput(ProcessBuilder.Redirect.PIPE)
+                }.startVerbose()
+            scope.add { xvfb.destroyForcibly().waitFor() }
+
+            val server = xvfb.inputReader().use { it.readLine().trim() }
+            exec.logger.info("Running at :$server (XAUTHORITY=$authFile.toA")
+
+            ProcessBuilder("xauth", "add", ":$server", ".", cookie).also {
+                it.inheritIO()
+                it.environment()["XAUTHORITY"] = authFile.toString()
+            }.startVerbose().waitForOrThrow("Failed to setup XAuthority file")
+
+            scope.add {
+                ProcessBuilder("xauth", "remove", ":$server").also {
+                    it.inheritIO()
+                    it.environment()["XAUTHORITY"] = authFile.toString()
+                }.startVerbose().waitFor()
+            }
+
+            // Wait a few seconds for Xvfb to start. Ugly, but identical to xvfb-run.
+            if (xvfb.waitFor(3, TimeUnit.SECONDS)) {
+                throw GradleException("Xvfb unexpectedly exited (with status code ${xvfb.exitValue()})")
+            }
+
+            exec.environment("XAUTHORITY", authFile.toString())
+            exec.environment("DISPLAY", ":$server")
+
+            run()
+        }
+    }
+
+    @get:Inject
+    protected abstract val fsOperations: FileSystemOperations
+
+    companion object {
+        fun get(gradle: Gradle): Provider<MinecraftRunnerService> =
+            gradle.sharedServices.registerIfAbsent("cc.tweaked.gradle.ClientJavaExec", MinecraftRunnerService::class.java) {
+                maxParallelUsages.set(1)
+            }
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/Node.kt

@@ -0,0 +1,60 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.file.Directory
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.provider.Provider
+import org.gradle.api.tasks.*
+import java.io.File
+
+class NodePlugin : Plugin<Project> {
+    override fun apply(project: Project) {
+        val extension = project.extensions.create("node", NodeExtension::class.java)
+        project.tasks.register(NpmInstall.TASK_NAME, NpmInstall::class.java) {
+            projectRoot.convention(extension.projectRoot)
+        }
+    }
+}
+
+abstract class NodeExtension(project: Project) {
+    /** The directory containing `package-lock.json` and `node_modules/`. */
+    abstract val projectRoot: DirectoryProperty
+
+    init {
+        projectRoot.convention(project.layout.projectDirectory)
+    }
+}
+
+/** Installs node modules as dependencies. */
+abstract class NpmInstall : DefaultTask() {
+    @get:Internal
+    abstract val projectRoot: DirectoryProperty
+
+    @get:InputFile
+    @get:PathSensitive(PathSensitivity.NONE)
+    val packageLock: Provider<File> = projectRoot.file("package-lock.json").map { it.asFile }
+
+    @get:OutputDirectory
+    val nodeModules: Provider<Directory> = projectRoot.dir("node_modules")
+
+    @TaskAction
+    fun install() {
+        project.exec {
+            commandLine("npm", "ci")
+            workingDir = projectRoot.get().asFile
+        }
+    }
+
+    companion object {
+        internal const val TASK_NAME: String = "npmInstall"
+    }
+}
+
+abstract class NpxExecToDir : ExecToDir() {
+    init {
+        dependsOn(NpmInstall.TASK_NAME)
+        executable = "npx"
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/ProcessHelpers.kt

@@ -0,0 +1,50 @@
+package cc.tweaked.gradle
+
+import org.codehaus.groovy.runtime.ProcessGroovyMethods
+import org.gradle.api.GradleException
+import java.io.BufferedReader
+import java.io.File
+import java.io.InputStreamReader
+
+internal object ProcessHelpers {
+    fun startProcess(vararg command: String): Process {
+        // Something randomly passes in "GIT_DIR=" as an environment variable which clobbers everything else. Don't
+        // inherit the environment array!
+        return ProcessBuilder()
+            .command(*command)
+            .redirectError(ProcessBuilder.Redirect.INHERIT)
+            .also { it.environment().clear() }
+            .start()
+    }
+
+    fun captureOut(vararg command: String): String {
+        val process = startProcess(*command)
+        process.outputStream.close()
+
+        val result = ProcessGroovyMethods.getText(process)
+        process.waitForOrThrow("Failed to run command")
+        return result
+    }
+
+    fun captureLines(vararg command: String): List<String> {
+        val process = startProcess(*command)
+        process.outputStream.close()
+
+        val out = BufferedReader(InputStreamReader(process.inputStream)).use { reader ->
+            reader.lines().filter { it.isNotEmpty() }.toList()
+        }
+        ProcessGroovyMethods.closeStreams(process)
+        process.waitForOrThrow("Failed to run command")
+        return out
+    }
+
+    fun onPath(name: String): Boolean {
+        val path = System.getenv("PATH") ?: return false
+        return path.splitToSequence(File.pathSeparator).any { File(it, name).exists() }
+    }
+}
+
+internal fun Process.waitForOrThrow(message: String) {
+    val ret = waitFor()
+    if (ret != 0) throw GradleException("$message (exited with $ret)")
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/SourceSetReference.kt

@@ -0,0 +1,20 @@
+package cc.tweaked.gradle
+
+import org.gradle.api.tasks.SourceSet
+
+data class SourceSetReference(
+    val sourceSet: SourceSet,
+    val classes: Boolean,
+    val external: Boolean,
+) {
+    companion object {
+        /** A source set in the current project. */
+        fun internal(sourceSet: SourceSet) = SourceSetReference(sourceSet, classes = true, external = false)
+
+        /** A source set from another project. */
+        fun external(sourceSet: SourceSet) = SourceSetReference(sourceSet, classes = true, external = true)
+
+        /** A source set which is inlined into the current project. */
+        fun inline(sourceSet: SourceSet) = SourceSetReference(sourceSet, classes = false, external = false)
+    }
+}

buildSrc/src/main/kotlin/cc/tweaked/gradle/XmlUtil.kt

@@ -0,0 +1,12 @@
+package cc.tweaked.gradle
+
+import groovy.util.Node
+import groovy.util.NodeList
+
+object XmlUtil {
+    fun findChild(node: Node, name: String): Node? = when (val child = node.get(name)) {
+        is Node -> child
+        is NodeList -> child.singleOrNull() as Node?
+        else -> null
+    }
+}

codeStyleSettings.xml

@@ -1,61 +0,0 @@
-<code_scheme name="Project" version="173">
-  <JSON>
-    <option name="OBJECT_WRAPPING" value="1" />
-    <option name="ARRAY_WRAPPING" value="1" />
-  </JSON>
-  <JavaCodeStyleSettings>
-    <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
-      <value />
-    </option>
-    <option name="JD_P_AT_EMPTY_LINES" value="false" />
-    <option name="JD_PRESERVE_LINE_FEEDS" value="true" />
-  </JavaCodeStyleSettings>
-  <codeStyleSettings language="JAVA">
-    <option name="KEEP_FIRST_COLUMN_COMMENT" value="false" />
-    <option name="BRACE_STYLE" value="2" />
-    <option name="CLASS_BRACE_STYLE" value="2" />
-    <option name="METHOD_BRACE_STYLE" value="2" />
-    <option name="LAMBDA_BRACE_STYLE" value="5" />
-    <option name="ELSE_ON_NEW_LINE" value="true" />
-    <option name="CATCH_ON_NEW_LINE" value="true" />
-    <option name="FINALLY_ON_NEW_LINE" value="true" />
-    <option name="SPACE_WITHIN_METHOD_CALL_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_METHOD_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_IF_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_WHILE_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_FOR_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_TRY_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_CATCH_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_SWITCH_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_SYNCHRONIZED_PARENTHESES" value="true" />
-    <option name="SPACE_WITHIN_ARRAY_INITIALIZER_BRACES" value="true" />
-    <option name="SPACE_BEFORE_IF_PARENTHESES" value="false" />
-    <option name="SPACE_BEFORE_WHILE_PARENTHESES" value="false" />
-    <option name="SPACE_BEFORE_FOR_PARENTHESES" value="false" />
-    <option name="SPACE_BEFORE_TRY_PARENTHESES" value="false" />
-    <option name="SPACE_BEFORE_CATCH_PARENTHESES" value="false" />
-    <option name="SPACE_BEFORE_SWITCH_PARENTHESES" value="false" />
-    <option name="SPACE_BEFORE_SYNCHRONIZED_PARENTHESES" value="false" />
-    <option name="SPACE_BEFORE_ARRAY_INITIALIZER_LBRACE" value="true" />
-    <option name="KEEP_SIMPLE_METHODS_IN_ONE_LINE" value="true" />
-    <option name="KEEP_SIMPLE_LAMBDAS_IN_ONE_LINE" value="true" />
-    <option name="KEEP_SIMPLE_CLASSES_IN_ONE_LINE" value="true" />
-    <option name="IF_BRACE_FORCE" value="1" />
-    <option name="DOWHILE_BRACE_FORCE" value="1" />
-    <option name="WHILE_BRACE_FORCE" value="1" />
-    <option name="FOR_BRACE_FORCE" value="1" />
-    <option name="SPACE_WITHIN_ANNOTATION_PARENTHESES" value="true" />
-    <indentOptions>
-      <option name="CONTINUATION_INDENT_SIZE" value="4" />
-    </indentOptions>
-  </codeStyleSettings>
-  <codeStyleSettings language="JSON">
-    <option name="KEEP_BLANK_LINES_IN_CODE" value="1" />
-    <option name="SPACE_WITHIN_BRACKETS" value="true" />
-    <option name="SPACE_WITHIN_BRACES" value="true" />
-    <indentOptions>
-      <option name="INDENT_SIZE" value="4" />
-      <option name="CONTINUATION_INDENT_SIZE" value="4" />
-    </indentOptions>
-  </codeStyleSettings>
-</code_scheme>

config/checkstyle/checkstyle.xml

@@ -0,0 +1,167 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE module PUBLIC
+    "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+    "https://checkstyle.org/dtds/configuration_1_3.dtd">
+<module name="Checker">
+    <property name="tabWidth" value="4"/>
+    <property name="charset" value="UTF-8" />
+
+    <module name="SuppressionFilter">
+	<property name="file" value="${config_loc}/suppressions.xml" />
+    </module>
+
+    <module name="BeforeExecutionExclusionFileFilter">
+        <property name="fileNamePattern" value="render_old"/>
+    </module>
+
+    <module name="TreeWalker">
+        <!-- Annotations -->
+        <module name="AnnotationLocation" />
+        <module name="AnnotationUseStyle">
+            <!-- We want trailing commas on multiline arrays. -->
+            <property name="trailingArrayComma" value="ignore" />
+        </module>
+        <module name="MissingDeprecated" />
+        <module name="MissingOverride" />
+
+        <!-- Blocks -->
+        <module name="EmptyBlock" />
+        <module name="EmptyCatchBlock">
+            <property name="exceptionVariableName" value="ignored" />
+        </module>
+        <module name="LeftCurly" />
+        <module name="NeedBraces">
+            <property name="allowSingleLineStatement" value="true"/>
+        </module>
+        <module name="RightCurly" />
+
+        <!-- Class design. As if we've ever followed good practice here. -->
+        <module name="FinalClass" />
+        <module name="InterfaceIsType" />
+        <module name="MutableException" />
+        <module name="OneTopLevelClass" />
+
+        <!-- Coding -->
+        <module name="ArrayTrailingComma" />
+        <module name="EqualsHashCode" />
+        <!-- FallThrough does not handle unreachable code well -->
+        <module name="IllegalInstantiation" />
+        <module name="IllegalThrows" />
+        <module name="ModifiedControlVariable" />
+        <module name="NoClone" />
+        <module name="NoFinalizer" />
+        <module name="OneStatementPerLine" />
+        <module name="PackageDeclaration" />
+        <module name="SimplifyBooleanExpression" />
+        <module name="SimplifyBooleanReturn" />
+        <module name="StringLiteralEquality" />
+        <module name="UnnecessaryParentheses">
+            <!-- Default minus LAND. -->
+            <property name="tokens" value="EXPR,IDENT,NUM_DOUBLE,NUM_FLOAT,NUM_INT,NUM_LONG,STRING_LITERAL,LITERAL_NULL,LITERAL_FALSE,LITERAL_TRUE,ASSIGN,BAND_ASSIGN,BOR_ASSIGN,BSR_ASSIGN,BXOR_ASSIGN,DIV_ASSIGN,MINUS_ASSIGN,MOD_ASSIGN,PLUS_ASSIGN,SL_ASSIGN,SR_ASSIGN,STAR_ASSIGN,LAMBDA,TEXT_BLOCK_LITERAL_BEGIN,LITERAL_INSTANCEOF,GT,LT,GE,LE,EQUAL,NOT_EQUAL,UNARY_MINUS,UNARY_PLUS,INC,DEC,LNOT,BNOT,POST_INC,POST_DEC" />
+        </module>
+        <module name="UnnecessarySemicolonAfterTypeMemberDeclaration" />
+        <module name="UnnecessarySemicolonInTryWithResources" />
+        <module name="UnnecessarySemicolonInEnumeration" />
+
+        <!-- Imports -->
+        <module name="CustomImportOrder">
+            <property name="customImportOrderRules"
+                value="THIRD_PARTY_PACKAGE###STANDARD_JAVA_PACKAGE###STATIC"
+            />
+        </module>
+        <module name="IllegalImport" />
+        <module name="RedundantImport" />
+        <module name="UnusedImports" />
+
+        <!-- Javadoc -->
+        <!-- TODO: Missing* checks for the dan200.computercraft.api package? -->
+        <module name="AtclauseOrder">
+            <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
+        </module>
+        <module name="InvalidJavadocPosition" />
+        <module name="JavadocBlockTagLocation" />
+        <module name="JavadocMethod"/>
+        <module name="JavadocType"/>
+        <module name="JavadocStyle">
+            <property name="checkHtml" value="false" />
+        </module>
+        <module name="NonEmptyAtclauseDescription" />
+        <module name="SingleLineJavadoc" />
+        <module name="SummaryJavadocCheck"/>
+
+        <!-- Misc -->
+        <module name="ArrayTypeStyle" />
+        <module name="CommentsIndentation" />
+        <module name="Indentation" />
+        <module name="OuterTypeFilename" />
+
+        <!-- Modifiers -->
+        <module name="ModifierOrder" />
+        <module name="RedundantModifier" />
+
+        <!-- Naming -->
+        <module name="ClassTypeParameterName" />
+        <module name="InterfaceTypeParameterName" />
+        <module name="LambdaParameterName" />
+        <module name="LocalFinalVariableName" />
+        <module name="LocalVariableName" />
+        <module name="MemberName" />
+        <module name="MethodName">
+            <property name="format" value="^(computercraft\$)?[a-z][a-zA-Z0-9]*$" />
+        </module>
+        <module name="MethodTypeParameterName" />
+        <module name="PackageName">
+            <property name="format" value="^(dan200\.computercraft|cc\.tweaked)(\.[a-z][a-z0-9]*)*" />
+        </module>
+        <module name="ParameterName" />
+        <module name="StaticVariableName">
+            <property name="format" value="^[a-z][a-zA-Z0-9]*|CAPABILITY(_[A-Z_]+)?$" />
+        </module>
+        <module name="TypeName" />
+
+        <!-- Whitespace -->
+        <module name="EmptyForInitializerPad"/>
+        <module name="EmptyForIteratorPad">
+            <property name="option" value="space"/>
+        </module>
+        <module name="GenericWhitespace" />
+        <module name="MethodParamPad" />
+        <module name="NoLineWrap" />
+        <module name="NoWhitespaceAfter">
+            <property name="tokens" value="AT,INC,DEC,UNARY_MINUS,UNARY_PLUS,BNOT,LNOT,DOT,ARRAY_DECLARATOR,INDEX_OP,METHOD_REF" />
+        </module>
+        <module name="NoWhitespaceBefore" />
+        <!-- TODO: Decide on an OperatorWrap style. -->
+        <module name="ParenPad" />
+        <module name="SeparatorWrap">
+            <property name="option" value="eol" />
+            <property name="tokens" value="COMMA,SEMI,ELLIPSIS,ARRAY_DECLARATOR,RBRACK,METHOD_REF" />
+        </module>
+        <module name="SeparatorWrap">
+            <property name="option" value="nl" />
+            <property name="tokens" value="DOT,AT" />
+        </module>
+        <module name="SingleSpaceSeparator" />
+        <module name="TypecastParenPad" />
+        <module name="WhitespaceAfter">
+            <property name="tokens" value="COMMA" />
+        </module>
+        <module name="WhitespaceAround">
+            <property name="ignoreEnhancedForColon" value="false" />
+            <!-- Allow empty functions -->
+            <property name="allowEmptyLambdas" value="true" />
+            <property name="allowEmptyMethods" value="true" />
+            <property name="allowEmptyConstructors" value="true" />
+            <property name="allowEmptyTypes" value="true" />
+
+            <property name="tokens" value="ASSIGN,BAND,BAND_ASSIGN,BOR,BOR_ASSIGN,BSR,BSR_ASSIGN,BXOR,BXOR_ASSIGN,COLON,DIV,DIV_ASSIGN,EQUAL,GE,GT,LAMBDA,LAND,LCURLY,LE,LITERAL_RETURN,LOR,LT,MINUS,MINUS_ASSIGN,MOD,MOD_ASSIGN,NOT_EQUAL,PLUS,PLUS_ASSIGN,QUESTION,RCURLY,SL,SLIST,SL_ASSIGN,SR,SR_ASSIGN,STAR,STAR_ASSIGN,LITERAL_ASSERT,TYPE_EXTENSION_AND" />
+        </module>
+    </module>
+
+    <module name="FileTabCharacter" />
+    <module name="NewlineAtEndOfFile" />
+    <module name="RegexpSingleline">
+        <property name="format" value="\s+$"/>
+        <property name="message" value="Trailing whitespace"/>
+    </module>
+</module>

config/checkstyle/suppressions.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE suppressions PUBLIC
+    "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+    "https://checkstyle.org/dtds/suppressions_1_2.dtd">
+<suppressions>
+    <!-- All the config options and method fields. -->
+    <suppress checks="StaticVariableName" files=".*[\\/]ComputerCraft.java" />
+    <suppress checks="StaticVariableName" files=".*[\\/]ComputerCraftAPI.java" />
+
+    <!-- The commands API is documented in Lua. -->
+    <suppress checks="SummaryJavadocCheck" files=".*[\\/]CommandAPI.java" />
+</suppressions>

config/gitpod/Dockerfile

@@ -0,0 +1,8 @@
+FROM gitpod/workspace-base
+
+USER gitpod
+
+RUN sudo apt-get -q update \
+ && sudo apt-get install -yq openjdk-16-jdk python3-pip npm \
+ && sudo pip3 install pre-commit \
+ && sudo update-java-alternatives --set java-1.16.0-openjdk-amd64

config/license/api.txt

@@ -0,0 +1,3 @@
+This file is part of the public ComputerCraft API - http://www.computercraft.info
+Copyright Daniel Ratcliffe, 2011-${year}. This API may be redistributed unmodified and in full only.
+For help using the API, and posting your mods, visit the forums at computercraft.info.

config/license/main.txt

@@ -0,0 +1,3 @@
+This file is part of ComputerCraft - http://www.computercraft.info
+Copyright Daniel Ratcliffe, 2011-${year}. Do not distribute without permission.
+Send enquiries to dratcliffe@gmail.com

doc/events/alarm.md

@@ -0,0 +1,22 @@
+---
+module: [kind=event] alarm
+see: os.setAlarm To start an alarm.
+---
+
+The @{alarm} event is fired when an alarm started with @{os.setAlarm} completes.
+
+## Return Values
+1. @{string}: The event name.
+2. @{number}: The ID of the alarm that finished.
+
+## Example
+Starts a timer and then waits for it to complete.
+
+```lua
+local alarm_id = os.setAlarm(os.time() + 0.05)
+local event, id
+repeat
+    event, id = os.pullEvent("alarm")
+until id == alarm_id
+print("Alarm with ID " .. id .. " was fired")
+```

doc/events/char.md

@@ -0,0 +1,25 @@
+---
+module: [kind=event] char
+see: key To listen to any key press.
+---
+
+The @{char} event is fired when a character is typed on the keyboard.
+
+The @{char} event is different to a key press. Sometimes multiple key presses may result in one character being
+typed (for instance, on some European keyboards). Similarly, some keys (e.g. <kbd>Ctrl</kbd>) do not have any
+corresponding character. The @{key} should be used if you want to listen to key presses themselves.
+
+## Return values
+1. @{string}: The event name.
+2. @{string}: The string representing the character that was pressed.
+
+
+## Example
+Prints each character the user presses:
+
+```lua
+while true do
+    local event, character = os.pullEvent("char")
+    print(character .. " was pressed.")
+end
+```

doc/events/computer_command.md

@@ -0,0 +1,18 @@
+---
+module: [kind=event] computer_command
+---
+
+The @{computer_command} event is fired when the `/computercraft queue` command is run for the current computer.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}<abbr title="Variable number of arguments">&hellip;</abbr>: The arguments passed to the command.
+
+## Example
+Prints the contents of messages sent:
+```lua
+while true do
+  local event = {os.pullEvent("computer_command")}
+  print("Received message:", table.unpack(event, 2))
+end
+```

doc/events/disk.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] disk
+see: disk_eject For the event sent when a disk is removed.
+---
+
+The @{disk} event is fired when a disk is inserted into an adjacent or networked disk drive.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The side of the disk drive that had a disk inserted.
+
+## Example
+Prints a message when a disk is inserted:
+```lua
+while true do
+  local event, side = os.pullEvent("disk")
+  print("Inserted a disk on side " .. side)
+end
+```

doc/events/disk_eject.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] disk_eject
+see: disk For the event sent when a disk is inserted.
+---
+
+The @{disk_eject} event is fired when a disk is removed from an adjacent or networked disk drive.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The side of the disk drive that had a disk removed.
+
+## Example
+Prints a message when a disk is removed:
+```lua
+while true do
+  local event, side = os.pullEvent("disk_eject")
+  print("Removed a disk on side " .. side)
+end
+```

doc/events/file_transfer.md

@@ -0,0 +1,42 @@
+---
+module: [kind=event] file_transfer
+since: 1.101.0
+---
+
+The @{file_transfer} event is queued when a user drags-and-drops a file on an open computer.
+
+This event contains a single argument of type @{TransferredFiles}, which can be used to @{TransferredFiles.getFiles|get
+the files to be transferred}. Each file returned is a @{fs.BinaryReadHandle|binary file handle} with an additional
+@{TransferredFile.getName|getName} method.
+
+## Return values
+1. @{string}: The event name
+2. @{TransferredFiles}: The list of transferred files.
+
+## Example
+Waits for a user to drop files on top of the computer, then prints the list of files and the size of each file.
+
+```lua
+local _, files = os.pullEvent("file_transfer")
+for _, file in ipairs(files.getFiles()) do
+  -- Seek to the end of the file to get its size, then go back to the beginning.
+  local size = file.seek("end")
+  file.seek("set", 0)
+
+  print(file.getName() .. " " .. file.getSize())
+end
+```
+
+## Example
+Save each transferred file to the computer's storage.
+
+```lua
+local _, files = os.pullEvent("file_transfer")
+for _, file in ipairs(files.getFiles()) do
+  local handle = fs.open(file.getName(), "wb")
+  handle.write(file.readAll())
+
+  handle.close()
+  file.close()
+end
+```

doc/events/http_check.md

@@ -0,0 +1,14 @@
+---
+module: [kind=event] http_check
+see: http.checkURLAsync To check a URL asynchronously.
+---
+
+The @{http_check} event is fired when a URL check finishes.
+
+This event is normally handled inside @{http.checkURL}, but it can still be seen when using @{http.checkURLAsync}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL requested to be checked.
+3. @{boolean}: Whether the check succeeded.
+4. <span class="type">@{string}|@{nil}</span>: If the check failed, a reason explaining why the check failed.

doc/events/http_failure.md

@@ -0,0 +1,40 @@
+---
+module: [kind=event] http_failure
+see: http.request To send an HTTP request.
+---
+
+The @{http_failure} event is fired when an HTTP request fails.
+
+This event is normally handled inside @{http.get} and @{http.post}, but it can still be seen when using @{http.request}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the site requested.
+3. @{string}: An error describing the failure.
+4. <span class="type">@{http.Response}|@{nil}</span>: A response handle if the connection succeeded, but the server's
+   response indicated failure.
+
+## Example
+Prints an error why the website cannot be contacted:
+```lua
+local myURL = "https://does.not.exist.tweaked.cc"
+http.request(myURL)
+local event, url, err
+repeat
+    event, url, err = os.pullEvent("http_failure")
+until url == myURL
+print("The URL " .. url .. " could not be reached: " .. err)
+```
+
+Prints the contents of a webpage that does not exist:
+```lua
+local myURL = "https://tweaked.cc/this/does/not/exist"
+http.request(myURL)
+local event, url, err, handle
+repeat
+    event, url, err, handle = os.pullEvent("http_failure")
+until url == myURL
+print("The URL " .. url .. " could not be reached: " .. err)
+print(handle.getResponseCode())
+handle.close()
+```

doc/events/http_success.md

@@ -0,0 +1,27 @@
+---
+module: [kind=event] http_success
+see: http.request To make an HTTP request.
+---
+
+The @{http_success} event is fired when an HTTP request returns successfully.
+
+This event is normally handled inside @{http.get} and @{http.post}, but it can still be seen when using @{http.request}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the site requested.
+3. @{http.Response}: The successful HTTP response.
+
+## Example
+Prints the content of a website (this may fail if the request fails):
+```lua
+local myURL = "https://tweaked.cc/"
+http.request(myURL)
+local event, url, handle
+repeat
+    event, url, handle = os.pullEvent("http_success")
+until url == myURL
+print("Contents of " .. url .. ":")
+print(handle.readAll())
+handle.close()
+```

doc/events/key.md

@@ -0,0 +1,26 @@
+---
+module: [kind=event] key
+---
+
+This event is fired when any key is pressed while the terminal is focused.
+
+This event returns a numerical "key code" (for instance, <kbd>F1</kbd> is 290). This value may vary between versions and
+so it is recommended to use the constants in the @{keys} API rather than hard coding numeric values.
+
+If the button pressed represented a printable character, then the @{key} event will be followed immediately by a @{char}
+event. If you are consuming text input, use a @{char} event instead!
+
+## Return values
+1. @{string}: The event name.
+2. @{number}: The numerical key value of the key pressed.
+3. @{boolean}: Whether the key event was generated while holding the key (@{true}), rather than pressing it the first time (@{false}).
+
+## Example
+Prints each key when the user presses it, and if the key is being held.
+
+```lua
+while true do
+  local event, key, is_held = os.pullEvent("key")
+  print(("%s held=%s"):format(keys.getName(key), is_held))
+end
+```

doc/events/key_up.md

@@ -0,0 +1,24 @@
+---
+module: [kind=event] key_up
+see: keys For a lookup table of the given keys.
+---
+
+Fired whenever a key is released (or the terminal is closed while a key was being pressed).
+
+This event returns a numerical "key code" (for instance, <kbd>F1</kbd> is 290). This value may vary between versions and
+so it is recommended to use the constants in the @{keys} API rather than hard coding numeric values.
+
+## Return values
+1. @{string}: The event name.
+2. @{number}: The numerical key value of the key pressed.
+
+## Example
+Prints each key released on the keyboard whenever a @{key_up} event is fired.
+
+```lua
+while true do
+  local event, key = os.pullEvent("key_up")
+  local name = keys.getName(key) or "unknown key"
+  print(name .. " was released.")
+end
+```

doc/events/modem_message.md

@@ -0,0 +1,28 @@
+---
+module: [kind=event] modem_message
+---
+
+The @{modem_message} event is fired when a message is received on an open channel on any @{modem}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The side of the modem that received the message.
+3. @{number}: The channel that the message was sent on.
+4. @{number}: The reply channel set by the sender.
+5. @{any}: The message as sent by the sender.
+6. <span class="type">@{number}|@{nil}</span>: The distance between the sender and the receiver in blocks, or @{nil} if the message was sent between dimensions.
+
+## Example
+Wraps a @{modem} peripheral, opens channel 0 for listening, and prints all received messages.
+
+```lua
+local modem = peripheral.find("modem") or error("No modem attached", 0)
+modem.open(0)
+
+while true do
+    local event, side, channel, replyChannel, message, distance = os.pullEvent("modem_message")
+    print(("Message received on side %s on channel %d (reply to %d) from %f blocks away with message %s"):format(
+        side, channel, replyChannel, distance, tostring(message)
+    ))
+end
+```

doc/events/monitor_resize.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] monitor_resize
+---
+
+The @{monitor_resize} event is fired when an adjacent or networked monitor's size is changed.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The side or network ID of the monitor that was resized.
+
+## Example
+Prints a message when a monitor is resized:
+
+```lua
+while true do
+  local event, side = os.pullEvent("monitor_resize")
+  print("The monitor on side " .. side .. " was resized.")
+end
+```

doc/events/monitor_touch.md

@@ -0,0 +1,20 @@
+---
+module: [kind=event] monitor_touch
+---
+
+The @{monitor_touch} event is fired when an adjacent or networked Advanced Monitor is right-clicked.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The side or network ID of the monitor that was touched.
+3. @{number}: The X coordinate of the touch, in characters.
+4. @{number}: The Y coordinate of the touch, in characters.
+
+## Example
+Prints a message when a monitor is touched:
+```lua
+while true do
+  local event, side, x, y = os.pullEvent("monitor_touch")
+  print("The monitor on side " .. side .. " was touched at (" .. x .. ", " .. y .. ")")
+end
+```

doc/events/mouse_click.md

@@ -0,0 +1,32 @@
+---
+module: [kind=event] mouse_click
+---
+
+This event is fired when the terminal is clicked with a mouse. This event is only fired on advanced computers (including
+advanced turtles and pocket computers).
+
+## Return values
+1. @{string}: The event name.
+2. @{number}: The mouse button that was clicked.
+3. @{number}: The X-coordinate of the click.
+4. @{number}: The Y-coordinate of the click.
+
+## Mouse buttons
+Several mouse events (@{mouse_click}, @{mouse_up}, @{mouse_scroll}) contain a "mouse button" code. This takes a
+numerical value depending on which button on your mouse was last pressed when this event occurred.
+
+| Button Code | Mouse Button  |
+|------------:|---------------|
+|           1 | Left button   |
+|           2 | Right button  |
+|           3 | Middle button |
+
+## Example
+Print the button and the coordinates whenever the mouse is clicked.
+
+```lua
+while true do
+  local event, button, x, y = os.pullEvent("mouse_click")
+  print(("The mouse button %s was pressed at %d, %d"):format(button, x, y))
+end
+```

doc/events/mouse_drag.md

@@ -0,0 +1,22 @@
+---
+module: [kind=event] mouse_drag
+see: mouse_click For when a mouse button is initially pressed.
+---
+
+This event is fired every time the mouse is moved while a mouse button is being held.
+
+## Return values
+1. @{string}: The event name.
+2. @{number}: The [mouse button](mouse_click.html#Mouse_buttons) that is being pressed.
+3. @{number}: The X-coordinate of the mouse.
+4. @{number}: The Y-coordinate of the mouse.
+
+## Example
+Print the button and the coordinates whenever the mouse is dragged.
+
+```lua
+while true do
+  local event, button, x, y = os.pullEvent("mouse_drag")
+  print(("The mouse button %s was dragged at %d, %d"):format(button, x, y))
+end
+```

doc/events/mouse_scroll.md

@@ -0,0 +1,21 @@
+---
+module: [kind=event] mouse_scroll
+---
+
+This event is fired when a mouse wheel is scrolled in the terminal.
+
+## Return values
+1. @{string}: The event name.
+2. @{number}: The direction of the scroll. (-1 = up, 1 = down)
+3. @{number}: The X-coordinate of the mouse when scrolling.
+4. @{number}: The Y-coordinate of the mouse when scrolling.
+
+## Example
+Prints the direction of each scroll, and the position of the mouse at the time.
+
+```lua
+while true do
+  local event, dir, x, y = os.pullEvent("mouse_scroll")
+  print(("The mouse was scrolled in direction %s at %d, %d"):format(dir, x, y))
+end
+```

doc/events/mouse_up.md

@@ -0,0 +1,21 @@
+---
+module: [kind=event] mouse_up
+---
+
+This event is fired when a mouse button is released or a held mouse leaves the computer's terminal.
+
+## Return values
+1. @{string}: The event name.
+2. @{number}: The [mouse button](mouse_click.html#Mouse_buttons) that was released.
+3. @{number}: The X-coordinate of the mouse.
+4. @{number}: The Y-coordinate of the mouse.
+
+## Example
+Prints the coordinates and button number whenever the mouse is released.
+
+```lua
+while true do
+  local event, button, x, y = os.pullEvent("mouse_up")
+  print(("The mouse button %s was released at %d, %d"):format(button, x, y))
+end
+```

doc/events/paste.md

@@ -0,0 +1,18 @@
+---
+module: [kind=event] paste
+---
+
+The @{paste} event is fired when text is pasted into the computer through Ctrl-V (or ⌘V on Mac).
+
+## Return values
+1. @{string}: The event name.
+2. @{string} The text that was pasted.
+
+## Example
+Prints pasted text:
+```lua
+while true do
+  local event, text = os.pullEvent("paste")
+  print('"' .. text .. '" was pasted')
+end
+```

doc/events/peripheral.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] peripheral
+see: peripheral_detach For the event fired when a peripheral is detached.
+---
+
+The @{peripheral} event is fired when a peripheral is attached on a side or to a modem.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The side the peripheral was attached to.
+
+## Example
+Prints a message when a peripheral is attached:
+```lua
+while true do
+  local event, side = os.pullEvent("peripheral")
+  print("A peripheral was attached on side " .. side)
+end
+```

doc/events/peripheral_detach.md

@@ -0,0 +1,19 @@
+---
+module: [kind=event] peripheral_detach
+see: peripheral For the event fired when a peripheral is attached.
+---
+
+The @{peripheral_detach} event is fired when a peripheral is detached from a side or from a modem.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The side the peripheral was detached from.
+
+## Example
+Prints a message when a peripheral is detached:
+```lua
+while true do
+  local event, side = os.pullEvent("peripheral_detach")
+  print("A peripheral was detached on side " .. side)
+end
+```

doc/events/rednet_message.md

@@ -0,0 +1,30 @@
+---
+module: [kind=event] rednet_message
+see: modem_message For raw modem messages sent outside of Rednet.
+see: rednet.receive To wait for a Rednet message with an optional timeout and protocol filter.
+---
+
+The @{rednet_message} event is fired when a message is sent over Rednet.
+
+This event is usually handled by @{rednet.receive}, but it can also be pulled manually.
+
+@{rednet_message} events are sent by @{rednet.run} in the top-level coroutine in response to @{modem_message} events. A @{rednet_message} event is always preceded by a @{modem_message} event. They are generated inside CraftOS rather than being sent by the ComputerCraft machine.
+
+## Return Values
+1. @{string}: The event name.
+2. @{number}: The ID of the sending computer.
+3. @{any}: The message sent.
+4. <span class="type">@{string}|@{nil}</span>: The protocol of the message, if provided.
+
+## Example
+Prints a message when one is sent:
+```lua
+while true do
+  local event, sender, message, protocol = os.pullEvent("rednet_message")
+  if protocol ~= nil then
+    print("Received message from " .. sender .. " with protocol " .. protocol .. " and message " .. tostring(message))
+  else
+    print("Received message from " .. sender .. " with message " .. tostring(message))
+  end
+end
+```

doc/events/redstone.md

@@ -0,0 +1,17 @@
+---
+module: [kind=event] redstone
+---
+
+The @{event!redstone} event is fired whenever any redstone inputs on the computer change.
+
+## Return values
+1. @{string}: The event name.
+
+## Example
+Prints a message when a redstone input changes:
+```lua
+while true do
+  os.pullEvent("redstone")
+  print("A redstone input has changed!")
+end
+```

doc/events/speaker_audio_empty.md

@@ -0,0 +1,27 @@
+---
+module: [kind=event] speaker_audio_empty
+see: speaker.playAudio To play audio using the speaker
+---
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The name of the speaker which is available to play more audio.
+
+
+## Example
+This uses @{io.lines} to read audio data in blocks of 16KiB from "example_song.dfpwm", and then attempts to play it
+using @{speaker.playAudio}. If the speaker's buffer is full, it waits for an event and tries again.
+
+```lua {data-peripheral=speaker}
+local dfpwm = require("cc.audio.dfpwm")
+local speaker = peripheral.find("speaker")
+
+local decoder = dfpwm.make_decoder()
+for chunk in io.lines("data/example.dfpwm", 16 * 1024) do
+    local buffer = decoder(chunk)
+
+    while not speaker.playAudio(buffer) do
+        os.pullEvent("speaker_audio_empty")
+    end
+end
+```

doc/events/task_complete.md

@@ -0,0 +1,28 @@
+---
+module: [kind=event] task_complete
+see: commands.execAsync To run a command which fires a task_complete event.
+---
+
+The @{task_complete} event is fired when an asynchronous task completes. This is usually handled inside the function call that queued the task; however, functions such as @{commands.execAsync} return immediately so the user can wait for completion.
+
+## Return Values
+1. @{string}: The event name.
+2. @{number}: The ID of the task that completed.
+3. @{boolean}: Whether the command succeeded.
+4. @{string}: If the command failed, an error message explaining the failure. (This is not present if the command succeeded.)
+5. <abbr title="Variable number of arguments">&hellip;</abbr>: Any parameters returned from the command.
+
+## Example
+Prints the results of an asynchronous command:
+```lua
+local taskID = commands.execAsync("say Hello")
+local event
+repeat
+    event = {os.pullEvent("task_complete")}
+until event[2] == taskID
+if event[3] == true then
+  print("Task " .. event[2] .. " succeeded:", table.unpack(event, 4))
+else
+  print("Task " .. event[2] .. " failed: " .. event[4])
+end
+```

doc/events/term_resize.md

@@ -0,0 +1,24 @@
+---
+module: [kind=event] term_resize
+---
+
+The @{term_resize} event is fired when the main terminal is resized. For instance:
+ - When a the tab bar is shown or hidden in @{multishell}.
+ - When the terminal is redirected to a monitor via the "monitor" program and the monitor is resized.
+
+When this event fires, some parts of the terminal may have been moved or deleted. Simple terminal programs (those
+not using @{term.setCursorPos}) can ignore this event, but more complex GUI programs should redraw the entire screen.
+
+## Return values
+1. @{string}: The event name.
+
+## Example
+Print a message each time the terminal is resized.
+
+```lua
+while true do
+  os.pullEvent("term_resize")
+  local w, h = term.getSize()
+  print("The term was resized to (" .. w .. ", " .. h .. ")")
+end
+```

doc/events/terminate.md

@@ -0,0 +1,28 @@
+---
+module: [kind=event] terminate
+---
+
+The @{terminate} event is fired when <kbd>Ctrl-T</kbd> is held down.
+
+This event is normally handled by @{os.pullEvent}, and will not be returned. However, @{os.pullEventRaw} will return this event when fired.
+
+@{terminate} will be sent even when a filter is provided to @{os.pullEventRaw}. When using @{os.pullEventRaw} with a filter, make sure to check that the event is not @{terminate}.
+
+## Return values
+1. @{string}: The event name.
+
+## Example
+Prints a message when Ctrl-T is held:
+```lua
+while true do
+  local event = os.pullEventRaw("terminate")
+  if event == "terminate" then print("Terminate requested!") end
+end
+```
+
+Exits when Ctrl-T is held:
+```lua
+while true do
+  os.pullEvent()
+end
+```

doc/events/timer.md

@@ -0,0 +1,21 @@
+---
+module: [kind=event] timer
+see: os.startTimer To start a timer.
+---
+
+The @{timer} event is fired when a timer started with @{os.startTimer} completes.
+
+## Return Values
+1. @{string}: The event name.
+2. @{number}: The ID of the timer that finished.
+
+## Example
+Start and wait for a timer to finish.
+```lua
+local timer_id = os.startTimer(2)
+local event, id
+repeat
+    event, id = os.pullEvent("timer")
+until id == timer_id
+print("Timer with ID " .. id .. " was fired")
+```

doc/events/turtle_inventory.md

@@ -0,0 +1,17 @@
+---
+module: [kind=event] turtle_inventory
+---
+
+The @{turtle_inventory} event is fired when a turtle's inventory is changed.
+
+## Return values
+1. @{string}: The event name.
+
+## Example
+Prints a message when the inventory is changed:
+```lua
+while true do
+  os.pullEvent("turtle_inventory")
+  print("The inventory was changed.")
+end
+```

doc/events/websocket_closed.md

@@ -0,0 +1,21 @@
+---
+module: [kind=event] websocket_closed
+---
+
+The @{websocket_closed} event is fired when an open WebSocket connection is closed.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the WebSocket that was closed.
+
+## Example
+Prints a message when a WebSocket is closed (this may take a minute):
+```lua
+local myURL = "wss://example.tweaked.cc/echo"
+local ws = http.websocket(myURL)
+local event, url
+repeat
+    event, url = os.pullEvent("websocket_closed")
+until url == myURL
+print("The WebSocket at " .. url .. " was closed.")
+```

doc/events/websocket_failure.md

@@ -0,0 +1,25 @@
+---
+module: [kind=event] websocket_failure
+see: http.websocketAsync To send an HTTP request.
+---
+
+The @{websocket_failure} event is fired when a WebSocket connection request fails.
+
+This event is normally handled inside @{http.websocket}, but it can still be seen when using @{http.websocketAsync}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the site requested.
+3. @{string}: An error describing the failure.
+
+## Example
+Prints an error why the website cannot be contacted:
+```lua
+local myURL = "wss://example.tweaked.cc/not-a-websocket"
+http.websocketAsync(myURL)
+local event, url, err
+repeat
+    event, url, err = os.pullEvent("websocket_failure")
+until url == myURL
+print("The URL " .. url .. " could not be reached: " .. err)
+```

doc/events/websocket_message.md

@@ -0,0 +1,27 @@
+---
+module: [kind=event] websocket_message
+---
+
+The @{websocket_message} event is fired when a message is received on an open WebSocket connection.
+
+This event is normally handled by @{http.Websocket.receive}, but it can also be pulled manually.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the WebSocket.
+3. @{string}: The contents of the message.
+4. @{boolean}: Whether this is a binary message.
+
+## Example
+Prints a message sent by a WebSocket:
+```lua
+local myURL = "wss://example.tweaked.cc/echo"
+local ws = http.websocket(myURL)
+ws.send("Hello!")
+local event, url, message
+repeat
+    event, url, message = os.pullEvent("websocket_message")
+until url == myURL
+print("Received message from " .. url .. " with contents " .. message)
+ws.close()
+```

doc/events/websocket_success.md

@@ -0,0 +1,28 @@
+---
+module: [kind=event] websocket_success
+see: http.websocketAsync To open a WebSocket asynchronously.
+---
+
+The @{websocket_success} event is fired when a WebSocket connection request returns successfully.
+
+This event is normally handled inside @{http.websocket}, but it can still be seen when using @{http.websocketAsync}.
+
+## Return Values
+1. @{string}: The event name.
+2. @{string}: The URL of the site.
+3. @{http.Websocket}: The handle for the WebSocket.
+
+## Example
+Prints the content of a website (this may fail if the request fails):
+```lua
+local myURL = "wss://example.tweaked.cc/echo"
+http.websocketAsync(myURL)
+local event, url, handle
+repeat
+    event, url, handle = os.pullEvent("websocket_success")
+until url == myURL
+print("Connected to " .. url)
+handle.send("Hello!")
+print(handle.receive())
+handle.close()
+```

doc/guides/gps_setup.md

@@ -0,0 +1,90 @@
+---
+module: [kind=guide] gps_setup
+---
+
+# Setting up GPS
+The @{gps} API allows computers and turtles to find their current position using wireless modems.
+
+In order to use GPS, you'll need to set up multiple *GPS hosts*. These are computers running the special `gps host`
+program, which tell other computers the host's position. Several hosts running together are known as a *GPS
+constellation*.
+
+In order to give the best results, a GPS constellation needs at least four computers. More than four GPS hosts per
+constellation is redundant, but it does not cause problems.
+
+## Building a GPS constellation
+![An example GPS constellation.](/images/gps-constellation-example.png){.big-image}
+
+We are going to build our GPS constellation as shown in the image above. You will need 4 computers and either 4 wireless
+modems or 4 ender modems. Try not to mix ender and wireless modems together as you might get some odd behavior when your
+requesting computers are out of range.
+
+:::tip Ender modems vs wireless modems
+Ender modems have a very large range, which makes them very useful for setting up GPS hosts. If you do this then you
+will likely only need one GPS constellation for the whole dimension (such as the Overworld or Nether).
+
+If you do use wireless modems then you may find that you need multiple GPS constellations to cover your needs.
+
+A computer needs a wireless or ender modem and to be in range of a GPS constellation that is in the same dimension as it
+to use the GPS API. The reason for this is that ComputerCraft mimics real-life GPS by making use of the distance
+parameter of @{modem_message|modem messages} and some maths.
+:::
+
+Locate where you want to place your GPS constellation. You will need an area at least 6 blocks high, 6 blocks wide, and
+6 blocks deep (6x6x6). If you are using wireless modems then you may want to build your constellation as high as you can
+because high altitude boosts modem message range and thus the radius that your constellation covers.
+
+The GPS constellation will only work when it is in a loaded chunk. If you want your constellation to always be
+accessible, you may want to permanently load the chunk using a vanilla or modded chunk loader. Make sure that your 6x6x6
+area fits in a single chunk to reduce the number of chunks that need to be kept loaded.
+
+Let's get started building the constellation! Place your first computer in one of the corners of your 6x6x6. Remember
+which computer this is as other computers need to be placed relative to it. Place the second computer 4 blocks above the
+first. Go back to your first computer and place your third computer 5 blocks in front of your first computer, leaving 4
+blocks of air between them. Finally for the fourth computer, go back to your first computer and place it 5 blocks right
+of your first computer, leaving 4 blocks of air between them.
+
+With all four computers placed within the 6x6x6, place one modem on top of each computer. You should have 4 modems and 4
+computers all within your 6x6x6 where each modem is attached to a computer and each computer has a modem.
+
+Currently your GPS constellation will not work, that's because each host is not aware that it's a GPS host. We will fix
+this in the next section.
+
+## Configuring the constellation
+Now that the structure of your constellation is built, we need to configure each host in it.
+
+Go back to the first computer that you placed and create a startup file, by running `edit startup`.
+
+Type the following code into the file:
+```lua
+shell.run("gps", "host", x, y, z)
+```
+
+Escape from the computer GUI and then press <kbd>F3</kbd> to open Minecraft's debug screen and then look at the computer
+(without opening the GUI). On the right of the screen about halfway down you should see an entry labeled `Targeted
+Block`, the numbers correspond to the position of the block that you are looking at. Replace `x` with the first number,
+`y` with the second number, and `z` with the third number.
+
+For example, if I had a computer at x = 59, y = 5, z = -150, then my <kbd>F3</kbd> debug screen entry would be `Target
+Block: 59, 5, -150` and I would change my startup file to this `shell.run("gps", "host", 59, 5, -150)`.
+
+To hide Minecraft's debug screen, press <kbd>F3</kbd> again.
+
+Create similar startup files for the other computers in your constellation, making sure to input the each computer's own
+coordinates.
+
+:::caution Modem messages come from the computer's position, not the modem's
+Wireless modems transmit from the block that they are attached to *not* the block space that they occupy, the
+coordinates that you input into your GPS host should be the position of the computer and not the position of the modem.
+:::
+
+Congratulations, your constellation is now fully set up! You can test it by placing another computer close by, placing a
+wireless modem on it, and running the `gps locate` program (or calling the @{gps.locate} function).
+
+:::info Why use Minecraft's coordinates?
+CC doesn't care if you use Minecraft's coordinate system, so long as all of the GPS hosts with overlapping ranges use
+the same reference point (requesting computers will get confused if hosts have different reference points). However,
+using MC's coordinate system does provide a nice standard to adopt server-wide. It also is consistent with how command
+computers get their location, they use MC's command system to get their block which returns that in MC's coordinate
+system.
+:::

doc/guides/local_ips.md

@@ -0,0 +1,99 @@
+---
+module: [kind=guide] local_ips
+---
+
+# Allowing access to local IPs
+By default, ComputerCraft blocks access to local IP addresses for security. This means you can't normally access any
+HTTP server running on your computer. However, this may be useful for testing programs without having a remote
+server. You can unblock these IPs in the ComputerCraft config.
+
+ - [Minecraft 1.13 and later, CC:T 1.87.0 and later](#cc-1.87.0)
+ - [Minecraft 1.13 and later, CC:T 1.86.2 and earlier](#cc-1.86.2)
+ - [Minecraft 1.12.2 and earlier](#mc-1.12)
+
+## Minecraft 1.13 and later, CC:T 1.87.0 and later {#cc-1.87.0}
+The configuration file can be located at `serverconfig/computercraft-server.toml` inside the world folder on either
+single-player or multiplayer. Look for lines that look like this:
+
+```toml
+#A list of rules which control behaviour of the "http" API for specific domains or IPs.
+#Each rule is an item with a 'host' to match against, and a series of properties. The host may be a domain name ("pastebin.com"),
+#wildcard ("*.pastebin.com") or CIDR notation ("127.0.0.0/8"). If no rules, the domain is blocked.
+[[http.rules]]
+    host = "$private"
+    action = "deny"
+```
+
+On 1.95.0 and later, this will be a single entry with `host = "$private"`. On earlier versions, this will be a number of
+`[[http.rules]]` with various IP addresses. You will want to remove all of the `[[http.rules]]` entries that have
+`action = "deny"`. Then save the file and relaunch Minecraft (Server).
+
+Here's what it should look like after removing:
+
+```toml
+#A list of rules which control behaviour of the "http" API for specific domains or IPs.
+#Each rule is an item with a 'host' to match against, and a series of properties. The host may be a domain name ("pastebin.com"),
+#wildcard ("*.pastebin.com") or CIDR notation ("127.0.0.0/8"). If no rules, the domain is blocked.
+[[http.rules]]
+    #The maximum size (in bytes) that a computer can send or receive in one websocket packet.
+    max_websocket_message = 131072
+    host = "*"
+    #The maximum size (in bytes) that a computer can upload in a single request. This includes headers and POST text.
+    max_upload = 4194304
+    action = "allow"
+    #The maximum size (in bytes) that a computer can download in a single request. Note that responses may receive more data than allowed, but this data will not be returned to the client.
+    max_download = 16777216
+    #The period of time (in milliseconds) to wait before a HTTP request times out. Set to 0 for unlimited.
+    timeout = 30000
+```
+
+## Minecraft 1.13 and later, CC:T 1.86.2 and earlier {#cc-1.86.2}
+The configuration file for singleplayer is at `.minecraft/config/computercraft-common.toml`. Look for lines that look
+like this:
+
+```toml
+#A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+#If this is empty then all whitelisted domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+#You can use domain names ("pastebin.com"), wildcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+blacklist = ["127.0.0.0/8", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16", "fd00::/8"]
+```
+
+Remove everything inside the array, leaving the last line as `blacklist = []`. Then save the file and relaunch Minecraft.
+
+Here's what it should look like after removing:
+
+```toml
+#A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+#If this is empty then all whitelisted domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+#You can use domain names ("pastebin.com"), wildcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+blacklist = []
+```
+
+## Minecraft 1.12.2 and earlier {#mc-1.12}
+On singleplayer, the configuration file is located at `.minecraft\config\ComputerCraft.cfg`. On multiplayer, the
+configuration file is located at `<server folder>\config\ComputerCraft.cfg`. Look for lines that look like this:
+
+```ini
+# A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+# If this is empty then all explicitly allowed domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+# You can use domain names ("pastebin.com"), wildcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+S:blocked_domains <
+    127.0.0.0/8
+    10.0.0.0/8
+    172.16.0.0/12
+    192.168.0.0/16
+    fd00::/8
+ >
+```
+
+Delete everything between the `<>`, leaving the last line as `S:blocked_domains = <>`. Then save the file and relaunch
+Minecraft (Server).
+
+Here's what it should look like after removing:
+
+```ini
+# A list of wildcards for domains or IP ranges that cannot be accessed through the "http" API on Computers.
+# If this is empty then all explicitly allowed domains will be accessible. Example: "*.github.com" will block access to all subdomains of github.com.
+# You can use domain names ("pastebin.com"), wildcards ("*.pastebin.com") or CIDR notation ("127.0.0.0/8").
+S:blocked_domains <>
+```

doc/guides/speaker_audio.md

@@ -0,0 +1,204 @@
+---
+module: [kind=guide] speaker_audio
+see: speaker.playAudio Play PCM audio using a speaker.
+see: cc.audio.dfpwm Provides utilities for encoding and decoding DFPWM files.
+---
+
+# Playing audio with speakers
+CC: Tweaked's speaker peripheral provides a powerful way to play any audio you like with the @{speaker.playAudio}
+method. However, for people unfamiliar with digital audio, it's not the most intuitive thing to use. This guide provides
+an introduction to digital audio, demonstrates how to play music with CC: Tweaked's speakers, and then briefly discusses
+the more complex topic of audio processing.
+
+## A short introduction to digital audio
+When sound is recorded it is captured as an analogue signal, effectively the electrical version of a sound
+wave. However, this signal is continuous, and so can't be used directly by a computer. Instead, we measure (or *sample*)
+the amplitude of the wave many times a second and then *quantise* that amplitude, rounding it to the nearest
+representable value.
+
+This representation of sound - a long, uniformally sampled list of amplitudes is referred to as [Pulse-code
+Modulation][PCM] (PCM). PCM can be thought of as the "standard" audio format, as it's incredibly easy to work with. For
+instance, to mix two pieces of audio together, you can just add samples from the two tracks together and take the average.
+
+CC: Tweaked's speakers also work with PCM audio. It plays back 48,000 samples a second, where each sample is an integer
+between -128 and 127. This is more commonly referred to as 48kHz and an 8-bit resolution.
+
+Let's now look at a quick example. We're going to generate a [Sine Wave] at 220Hz, which sounds like a low monotonous
+hum. First we wrap our speaker peripheral, and then we fill a table (also referred to as a *buffer*) with 128×1024
+samples - this is the maximum number of samples a speaker can accept in one go.
+
+In order to fill this buffer, we need to do a little maths. We want to play 220 sine waves each second, where each sine
+wave completes a full oscillation in 2π "units". This means one seconds worth of audio is 2×π×220 "units" long. We then
+need to split this into 48k samples, basically meaning for each sample we move 2×π×220/48k "along" the sine curve.
+
+```lua {data-peripheral=speaker}
+local speaker = peripheral.find("speaker")
+
+local buffer = {}
+local t, dt = 0, 2 * math.pi * 220 / 48000
+for i = 1, 128 * 1024 do
+    buffer[i] = math.floor(math.sin(t) * 127)
+    t = (t + dt) % (math.pi * 2)
+end
+
+speaker.playAudio(buffer)
+```
+
+## Streaming audio
+You might notice that the above snippet only generates a short bit of audio - 2.7s seconds to be precise. While we could
+try increasing the number of loop iterations, we'll get an error when we try to play it through the speaker: the sound
+buffer is too large for it to handle.
+
+Our 2.7 seconds of audio is stored in a table with over 130 _thousand_ elements. If we wanted to play a full minute of
+sine waves (and why wouldn't you?), you'd need a table with almost 3 _million_. Suddenly you find these numbers adding
+up very quickly, and these tables take up more and more memory.
+
+Instead of building our entire song (well, sine wave) in one go, we can produce it in small batches, each of which get
+passed off to @{speaker.playAudio} when the time is right. This allows us to build a _stream_ of audio, where we read
+chunks of audio one at a time (either from a file or a tone generator like above), do some optional processing to each
+one, and then play them.
+
+Let's adapt our example from above to do that instead.
+
+```lua {data-peripheral=speaker}
+local speaker = peripheral.find("speaker")
+
+local t, dt = 0, 2 * math.pi * 220 / 48000
+while true do
+    local buffer = {}
+    for i = 1, 16 * 1024 * 8 do
+        buffer[i] = math.floor(math.sin(t) * 127)
+        t = (t + dt) % (math.pi * 2)
+    end
+
+    while not speaker.playAudio(buffer) do
+        os.pullEvent("speaker_audio_empty")
+    end
+end
+```
+
+It looks pretty similar to before, aside from we've wrapped the generation and playing code in a while loop, and added a
+rather odd loop with @{speaker.playAudio} and @{os.pullEvent}.
+
+Let's talk about this loop, why do we need to keep calling @{speaker.playAudio}? Remember that what we're trying to do
+here is avoid keeping too much audio in memory at once. However, if we're generating audio quicker than the speakers can
+play it, we're not helping at all - all this audio is still hanging around waiting to be played!
+
+In order to avoid this, the speaker rejects any new chunks of audio if its backlog is too large. When this happens,
+@{speaker.playAudio} returns false. Once enough audio has played, and the backlog has been reduced, a
+@{speaker_audio_empty} event is queued, and we can try to play our chunk once more.
+
+## Storing audio
+PCM is a fantastic way of representing audio when we want to manipulate it, but it's not very efficient when we want to
+store it to disk. Compare the size of a WAV file (which uses PCM) to an equivalent MP3, it's often 5 times the size.
+Instead, we store audio in special formats (or *codecs*) and then convert them to PCM when we need to do processing on
+them.
+
+Modern audio codecs use some incredibly impressive techniques to compress the audio as much as possible while preserving
+sound quality. However, due to CC: Tweaked's limited processing power, it's not really possible to use these from your
+computer. Instead, we need something much simpler.
+
+DFPWM (Dynamic Filter Pulse Width Modulation) is the de facto standard audio format of the ComputerCraft (and
+OpenComputers) world. Originally popularised by the addon mod [Computronics], CC:T now has built-in support for it with
+the @{cc.audio.dfpwm} module. This allows you to read DFPWM files from disk, decode them to PCM, and then play them
+using the speaker.
+
+Let's dive in with an example, and we'll explain things afterwards:
+
+```lua {data-peripheral=speaker}
+local dfpwm = require("cc.audio.dfpwm")
+local speaker = peripheral.find("speaker")
+
+local decoder = dfpwm.make_decoder()
+for chunk in io.lines("data/example.dfpwm", 16 * 1024) do
+    local buffer = decoder(chunk)
+
+    while not speaker.playAudio(buffer) do
+        os.pullEvent("speaker_audio_empty")
+    end
+end
+```
+
+Once again, we see the @{speaker.playAudio}/@{speaker_audio_empty} loop. However, the rest of the program is a little
+different.
+
+First, we require the dfpwm module and call @{cc.audio.dfpwm.make_decoder} to construct a new decoder. This decoder
+accepts blocks of DFPWM data and converts it to a list of 8-bit amplitudes, which we can then play with our speaker.
+
+As mentioned above, @{speaker.playAudio} accepts at most 128×1024 samples in one go. DFPMW uses a single bit for each
+sample, which means we want to process our audio in chunks of 16×1024 bytes (16KiB). In order to do this, we use
+@{io.lines}, which provides a nice way to loop over chunks of a file. You can of course just use @{fs.open} and
+@{fs.BinaryReadHandle.read} if you prefer.
+
+## Processing audio
+As mentioned near the beginning of this guide, PCM audio is pretty easy to work with as it's just a list of amplitudes.
+You can mix together samples from different streams by adding their amplitudes, change the rate of playback by removing
+samples, etc...
+
+Let's put together a small demonstration here. We're going to add a small delay effect to the song above, so that you
+hear a faint echo a second and a half later.
+
+In order to do this, we'll follow a format similar to the previous example, decoding the audio and then playing it.
+However, we'll also add some new logic between those two steps, which loops over every sample in our chunk of audio, and
+adds the sample from 1.5 seconds ago to it.
+
+For this, we'll need to keep track of the last 72k samples - exactly 1.5 seconds worth of audio. We can do this using a
+[Ring Buffer], which helps makes things a little more efficient.
+
+```lua {data-peripheral=speaker}
+local dfpwm = require("cc.audio.dfpwm")
+local speaker = peripheral.find("speaker")
+
+-- Speakers play at 48kHz, so 1.5 seconds is 72k samples. We first fill our buffer
+-- with 0s, as there's nothing to echo at the start of the track!
+local samples_i, samples_n = 1, 48000 * 1.5
+local samples = {}
+for i = 1, samples_n do samples[i] = 0 end
+
+local decoder = dfpwm.make_decoder()
+for chunk in io.lines("data/example.dfpwm", 16 * 1024) do
+    local buffer = decoder(chunk)
+
+    for i = 1, #buffer do
+        local original_value = buffer[i]
+
+        -- Replace this sample with its current amplitude plus the amplitude from 1.5 seconds ago.
+        -- We scale both to ensure the resulting value is still between -128 and 127.
+        buffer[i] = original_value * 0.6 + samples[samples_i] * 0.4
+
+        -- Now store the current sample, and move the "head" of our ring buffer forward one place.
+        samples[samples_i] = original_value
+        samples_i = samples_i + 1
+        if samples_i > samples_n then samples_i = 1 end
+    end
+
+    while not speaker.playAudio(buffer) do
+        os.pullEvent("speaker_audio_empty")
+    end
+
+    -- The audio processing above can be quite slow and preparing the first batch of audio
+    -- may timeout the computer. We sleep to avoid this.
+    -- There's definitely better ways of handling this - this is just an example!
+    sleep(0.05)
+end
+```
+
+:::note Confused?
+Don't worry if you don't understand this example. It's quite advanced, and does use some ideas that this guide doesn't
+cover. That said, don't be afraid to ask on [GitHub Discussions] or [IRC] either!
+:::
+
+It's worth noting that the examples of audio processing we've mentioned here are about manipulating the _amplitude_ of
+the wave. If you wanted to modify the _frequency_ (for instance, shifting the pitch), things get rather more complex.
+For this, you'd need to use the [Fast Fourier transform][FFT] to convert the stream of amplitudes to frequencies,
+process those, and then convert them back to amplitudes.
+
+This is, I'm afraid, left as an exercise to the reader.
+
+[Computronics]: https://github.com/Vexatos/Computronics/ "Computronics on GitHub"
+[FFT]: https://en.wikipedia.org/wiki/Fast_Fourier_transform "Fast Fourier transform - Wikipedia"
+[PCM]: https://en.wikipedia.org/wiki/Pulse-code_modulation "Pulse-code Modulation - Wikipedia"
+[Ring Buffer]: https://en.wikipedia.org/wiki/Circular_buffer "Circular buffer - Wikipedia"
+[Sine Wave]: https://en.wikipedia.org/wiki/Sine_wave "Sine wave - Wikipedia"
+[GitHub Discussions]: https://github.com/cc-tweaked/CC-Tweaked/discussions
+[IRC]: https://webchat.esper.net/?channels=computercraft "#computercraft on EsperNet"

doc/guides/using_require.md

@@ -0,0 +1,83 @@
+---
+module: [kind=guide] using_require
+---
+
+# Reusing code with require
+A library is a collection of useful functions and other definitions which is stored separately to your main program. You
+might want to create a library because you have some functions which are used in multiple programs, or just to split
+your program into multiple more modular files.
+
+Let's say we want to create a small library to make working with the @{term|terminal} a little easier. We'll provide two
+functions: `reset`, which clears the terminal and sets the cursor to (1, 1), and `write_center`, which prints some text
+in the middle of the screen.
+
+Start off by creating a file called `more_term.lua`:
+
+```lua {data-snippet=more_term}
+local function reset()
+  term.clear()
+  term.setCursorPos(1, 1)
+end
+
+local function write_center(text)
+  local x, y = term.getCursorPos()
+  local width, height = term.getSize()
+  term.setCursorPos(math.floor((width - #text) / 2) + 1, y)
+  term.write(text)
+end
+
+return { reset = reset, write_center = write_center }
+```
+
+Now, what's going on here? We define our two functions as one might expect, and then at the bottom return a table with
+the two functions. When we require this library, this table is what is returned. With that, we can then call the
+original functions. Now create a new file, with the following:
+
+```lua {data-mount=more_term:more_term.lua}
+local more_term = require("more_term")
+more_term.reset()
+more_term.write_center("Hello, world!")
+```
+
+When run, this'll clear the screen and print some text in the middle of the first line.
+
+## require in depth
+While the previous section is a good introduction to how @{require} operates, there are a couple of remaining points
+which are worth mentioning for more advanced usage.
+
+### Libraries can return anything
+In our above example, we return a table containing the functions we want to expose. However, it's worth pointing out
+that you can return ''anything'' from your library - a table, a function or even just a string! @{require} treats them
+all the same, and just returns whatever your library provides.
+
+### Module resolution and the package path
+In the above examples, we defined our library in a file, and @{require} read from it. While this is what you'll do most
+of the time, it is possible to make @{require} look elsewhere for your library, such as downloading from a website or
+loading from an in-memory library store.
+
+As a result, the *module name* you pass to @{require} doesn't correspond to a file path. One common mistake is to load
+code from a sub-directory using `require("folder/library")` or even `require("folder/library.lua")`, neither of which
+will do quite what you expect.
+
+When loading libraries (also referred to as *modules*) from files, @{require} searches along the *@{package.path|module
+path}*. By default, this looks something like:
+
+* `?.lua`
+* `?/init.lua`
+* `/rom/modules/main/?.lua`
+* etc...
+
+When you call `require("my_library")`, @{require} replaces the `?` in each element of the path with your module name, and
+checks if the file exists. In this case, we'd look for `my_library.lua`, `my_library/init.lua`,
+`/rom/modules/main/my_library.lua` and so on. Note that this works *relative to the current program*, so if your
+program is actually called `folder/program`, then we'll look for `folder/my_library.lua`, etc...
+
+One other caveat is loading libraries from sub-directories. For instance, say we have a file
+`my/fancy/library.lua`. This can be loaded by using `require("my.fancy.library")` - the '.'s are replaced with '/'
+before we start looking for the library.
+
+## External links
+There are several external resources which go into require in a little more detail:
+
+ - The [Lua Module tutorial](http://lua-users.org/wiki/ModulesTutorial) on the Lua wiki.
+ - [Lua's manual section on @{require}](https://www.lua.org/manual/5.1/manual.html#pdf-require).

doc/head.html

@@ -0,0 +1 @@
+<meta name="theme-color" content="#c8d87c">

doc/index.md

@@ -0,0 +1,54 @@
+# ![CC: Tweaked](logo.png)
+CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles and more to the game. A fork of the
+much-beloved [ComputerCraft], it continues its legacy with better performance, stability, and a wealth of new features.
+
+CC: Tweaked can be installed from [CurseForge] or [Modrinth]. It requires the [Minecraft Forge][forge] mod loader, but
+[versions are available for Fabric][ccrestitched].
+
+## Features
+Controlled using the [Lua programming language][lua], CC: Tweaked's computers provides all the tools you need to start
+writing code and automating your Minecraft world.
+
+![A ComputerCraft terminal open and ready to be programmed.](images/basic-terminal.png){.big-image}
+
+While computers are incredibly powerful, they're rather limited by their inability to move about. *Turtles* are the
+solution here. They can move about the world, placing and breaking blocks, swinging a sword to protect you from zombies,
+or whatever else you program them to!
+
+![A turtle tunneling in Minecraft.](images/turtle.png){.big-image}
+
+Not all problems can be solved with a pickaxe though, and so CC: Tweaked also provides a bunch of additional peripherals
+for your computers. You can play a tune with speakers, display text or images on a monitor, connect all your
+computers together with modems, and much more.
+
+Computers can now also interact with inventories such as chests, allowing you to build complex inventory and item
+management systems.
+
+![A chest's contents being read by a computer and displayed on a monitor.](images/peripherals.png){.big-image}
+
+## Getting Started
+While ComputerCraft is lovely for both experienced programmers and for people who have never coded before, it can be a
+little daunting getting started. Thankfully, there's several fantastic tutorials out there:
+
+ - [Direwolf20's ComputerCraft tutorials](https://www.youtube.com/watch?v=wrUHUhfCY5A "ComputerCraft Tutorial Episode 1 - HELP! and Hello World")
+ - [Sethbling's ComputerCraft series](https://www.youtube.com/watch?v=DSsx4VSe-Uk "Programming Tutorial with Minecraft Turtles -- Ep. 1: Intro to Turtles and If-Then-Else_End")
+ - [Lyqyd's Computer Basics 1](http://www.computercraft.info/forums2/index.php?/topic/15033-computer-basics-i/ "Computer Basics I")
+
+Once you're a little more familiar with the mod, the sidebar and links below provide more detailed documentation on the
+various APIs and peripherals provided by the mod.
+
+If you get stuck, do [ask a question on GitHub][GitHub Discussions] or pop in to the ComputerCraft's [IRC channel][IRC].
+
+## Get Involved
+CC: Tweaked lives on [GitHub]. If you've got any ideas, feedback or bugs please do [create an issue][bug].
+
+[github]: https://github.com/cc-tweaked/CC-Tweaked/ "CC: Tweaked on GitHub"
+[bug]: https://github.com/cc-tweaked/CC-Tweaked/issues/new/choose
+[computercraft]: https://github.com/dan200/ComputerCraft "ComputerCraft on GitHub"
+[curseforge]: https://minecraft.curseforge.com/projects/cc-tweaked "Download CC: Tweaked from CurseForge"
+[modrinth]: https://modrinth.com/mod/gu7yAYhd "Download CC: Tweaked from Modrinth"
+[forge]: https://files.minecraftforge.net/ "Download Minecraft Forge."
+[ccrestitched]: https://www.curseforge.com/minecraft/mc-mods/cc-restitched "Download CC: Restitched from CurseForge"
+[lua]: https://www.lua.org/ "Lua's main website"
+[GitHub Discussions]: https://github.com/cc-tweaked/CC-Tweaked/discussions
+[IRC]: https://webchat.esper.net/?channels=computercraft "#computercraft on EsperNet"

doc/mod-page.md

@@ -0,0 +1,61 @@
+# ![CC: Tweaked](https://tweaked.cc/logo.png)
+CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles and more to the game. A fork of the much-beloved [ComputerCraft], it continues its legacy with better performance, stability, and a wealth of new features.
+
+**Fabric support is added by the [CC: Restitched][ccrestitched] project**
+
+## Testimonials
+
+> I'm not sure what that is [...] I don't know where that came from.
+>
+> \- [direwolf20, December 2020](https://youtu.be/D8Ue9I-SKeM?t=980)
+
+> It is basically ComputerCraft. It has the turtles, and the computers, and writing Lua programs and all that stuff.
+>
+> \- [direwolf20, May 2022](https://youtu.be/7Ruq33XmQIQ?t=537)
+
+
+## Features
+Controlled using the [Lua programming language][lua], CC: Tweaked's computers provides all the tools you need to start
+writing code and automating your Minecraft world.
+
+![A ComputerCraft terminal open and ready to be programmed.](https://tweaked.cc/images/basic-terminal.png)
+
+While computers are incredibly powerful, they're rather limited by their inability to move about. *Turtles* are the
+solution here. They can move about the world, placing and breaking blocks, swinging a sword to protect you from zombies,
+or whatever else you program them to!
+
+![A turtle tunneling in Minecraft.](https://tweaked.cc/images/turtle.png)
+
+Not all problems can be solved with a pickaxe though, and so CC: Tweaked also provides a bunch of additional peripherals
+for your computers. You can play a tune with speakers, display text or images on a monitor, connect all your
+computers together with modems, and much more.
+
+Computers can now also interact with inventories such as chests, allowing you to build complex inventory and item
+management systems.
+
+![A chest's contents being read by a computer and displayed on a monitor.](https://tweaked.cc/images/peripherals.png)
+
+## Getting Started
+While ComputerCraft is lovely for both experienced programmers and for people who have never coded before, it can be a
+little daunting getting started. Thankfully, there's several fantastic tutorials out there:
+
+ - [Direwolf20's ComputerCraft tutorials](https://www.youtube.com/watch?v=wrUHUhfCY5A "ComputerCraft Tutorial Episode 1 - HELP! and Hello World")
+ - [Sethbling's ComputerCraft series](https://www.youtube.com/watch?v=DSsx4VSe-Uk "Programming Tutorial with Minecraft Turtles -- Ep. 1: Intro to Turtles and If-Then-Else_End")
+ - [Lyqyd's Computer Basics 1](http://www.computercraft.info/forums2/index.php?/topic/15033-computer-basics-i/ "Computer Basics I")
+
+Once you're a little more familiar with the mod, the [wiki](https://tweaked.cc/) provides more detailed documentation on the
+various APIs and peripherals provided by the mod.
+
+If you get stuck, do [ask a question on GitHub][GitHub Discussions] or pop in to the ComputerCraft's [IRC channel][IRC].
+
+## Get Involved
+CC: Tweaked lives on [GitHub]. If you've got any ideas, feedback or bugs please do [create an issue][bug].
+
+[github]: https://github.com/cc-tweaked/CC-Tweaked/ "CC: Tweaked on GitHub"
+[bug]: https://github.com/cc-tweaked/CC-Tweaked/issues/new/choose
+[computercraft]: https://github.com/dan200/ComputerCraft "ComputerCraft on GitHub"
+[forge]: https://files.minecraftforge.net/ "Download Minecraft Forge."
+[ccrestitched]: https://modrinth.com/mod/cc-restitched "Download CC: Restitched from Modrinth"
+[lua]: https://www.lua.org/ "Lua's main website"
+[GitHub Discussions]: https://github.com/cc-tweaked/CC-Tweaked/discussions
+[IRC]: http://webchat.esper.net/?channels=computercraft "#computercraft on EsperNet"