cmux/CONTRIBUTING.md
Lawrence Chen 9d9559fb93
Relicense from AGPL-3.0 to GPL-3.0 (#2364)
* Relicense from AGPL-3.0 to GPL-3.0 (keep dual-license with commercial option)

AGPL's network-use clause is irrelevant for a desktop app, but triggers
blanket corporate bans. GPL-3.0 still requires forks to stay open source
(preventing proprietary commercial forks) while being accepted by most
corporate policies for desktop software.

Changes:
- LICENSE: Replace AGPL-3.0 text with GPL-3.0 text
- Update dual-license header (AGPL → GPL)
- Update all README translations, CONTRIBUTING.md, package.json files
- Historical changelog/project entries left as-is

* Fix French and Italian grammar in license section

AGPL starts with a vowel so "l'AGPL" / "all'AGPL" were correct.
GPL starts with a consonant, so use "la GPL" / "alla GPL" instead.

---------

Co-authored-by: Lawrence Chen <lawrencecchen@users.noreply.github.com>
2026-03-30 04:54:00 -07:00

3.1 KiB

Contributing to cmux

Prerequisites

  • macOS 14+
  • Xcode 15+
  • Zig (install via brew install zig)

Getting Started

  1. Clone the repository with submodules:

    git clone --recursive https://github.com/manaflow-ai/cmux.git
    cd cmux
    
  2. Run the setup script:

    ./scripts/setup.sh
    

    This will:

    • Initialize git submodules (ghostty, homebrew-cmux)
    • Build the GhosttyKit.xcframework from source
    • Create the necessary symlinks
  3. Build the debug app:

    ./scripts/reload.sh --tag my-feature
    

    The script prints the .app path. Cmd-click to open, or pass --launch to open automatically.

Development Scripts

Script Description
./scripts/setup.sh One-time setup (submodules + xcframework)
./scripts/reload.sh Build Debug app (pass --launch to also open it)
./scripts/reloadp.sh Build and launch Release app
./scripts/reload2.sh Reload both Debug and Release
./scripts/rebuild.sh Clean rebuild

Rebuilding GhosttyKit

If you make changes to the ghostty submodule, rebuild the xcframework:

cd ghostty
zig build -Demit-xcframework=true -Doptimize=ReleaseFast

Running Tests

Basic tests (run on VM)

ssh cmux-vm 'cd /Users/cmux/GhosttyTabs && xcodebuild -project GhosttyTabs.xcodeproj -scheme cmux -configuration Debug -destination "platform=macOS" build && pkill -x "cmux DEV" || true && APP=$(find /Users/cmux/Library/Developer/Xcode/DerivedData -path "*/Build/Products/Debug/cmux DEV.app" -print -quit) && open "$APP" && for i in {1..20}; do [ -S /tmp/cmux.sock ] && break; sleep 0.5; done && python3 tests/test_update_timing.py && python3 tests/test_signals_auto.py && python3 tests/test_ctrl_socket.py && python3 tests/test_notifications.py'

UI tests (run on VM)

ssh cmux-vm 'cd /Users/cmux/GhosttyTabs && xcodebuild -project GhosttyTabs.xcodeproj -scheme cmux -configuration Debug -destination "platform=macOS" -only-testing:cmuxUITests test'

Ghostty Submodule

The ghostty submodule points to manaflow-ai/ghostty, a fork of the upstream Ghostty project.

Making changes to ghostty

cd ghostty
git checkout -b my-feature
# make changes
git add .
git commit -m "Description of changes"
git push manaflow my-feature

Keeping the fork updated

cd ghostty
git fetch origin
git checkout main
git merge origin/main
git push manaflow main

Then update the parent repo:

cd ..
git add ghostty
git commit -m "Update ghostty submodule"

See docs/ghostty-fork.md for details on fork changes and conflict notes.

License

By contributing to this repository, you agree that:

  1. Your contributions are licensed under the project's GNU General Public License v3.0 or later (GPL-3.0-or-later).
  2. You grant Manaflow, Inc. a perpetual, worldwide, non-exclusive, royalty-free, irrevocable license to use, reproduce, modify, sublicense, and distribute your contributions under any license, including a commercial license offered to third parties.