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donutbrowser/CONTRIBUTING.md
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2026-03-24 05:20:30 +04:00

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# Contributing to Donut Browser
Contributions are welcome! To start working on an issue, leave a comment indicating you're taking it on.
## Before Starting
- Search existing PRs related to that issue
- Confirm no other contributors are working on the same issue
- Check if the feature aligns with the project's goals
## Contributor License Agreement
By contributing, you agree your contributions will be licensed under the same terms as the project. See [Contributor License Agreement](CONTRIBUTOR_LICENSE_AGREEMENT.md). This ensures contributions can be used in the open source version (AGPL-3.0) and commercially licensed. You retain all rights to use your contributions elsewhere.
## Development Setup
### Using Nix (recommended)
```bash
nix run .#setup # Install dependencies
nix run .#tauri-dev # Start development server
nix run .#test # Run all checks
```
Or enter the dev shell: `nix develop`
### Manual Setup
Requirements:
- Node.js (see `.node-version`)
- pnpm
- Rust + Cargo (latest stable)
- [Tauri v2 prerequisites](https://v2.tauri.app/start/prerequisites/)
```bash
git checkout -b feature/my-feature-name
pnpm install
pnpm tauri dev
```
## Quality Checks
Run before every commit:
```bash
pnpm format && pnpm lint && pnpm test
```
This runs:
- **Biome** — JS/TS linting and formatting
- **Clippy + rustfmt** — Rust linting and formatting
- **typos** — Spellcheck (allowlist in `_typos.toml`)
- **CodeQL** — Security analysis (JS, Actions, Rust) — runs in CI
- **Unit tests** — 330+ Rust tests
- **Integration tests** — proxy, sync e2e
### Running CodeQL locally
```bash
# Install: brew install codeql
codeql pack download codeql/javascript-queries codeql/rust-queries
# JavaScript
codeql database create /tmp/codeql-js --language=javascript --source-root=.
codeql database analyze /tmp/codeql-js --format=sarifv2.1.0 --output=/tmp/js.sarif codeql/javascript-queries
# Rust
codeql database create /tmp/codeql-rust --language=rust --source-root=.
codeql database analyze /tmp/codeql-rust --format=sarifv2.1.0 --output=/tmp/rust.sarif codeql/rust-queries
```
## Key Rules
- **Translations**: Any UI text changes must be reflected in all 7 locale files (`src/i18n/locales/`)
- **Tauri commands**: If you modify Tauri commands, the `test_no_unused_tauri_commands` test will catch unused ones
- **No hardcoded colors**: Use theme CSS variables (see `src/lib/themes.ts`), never Tailwind color classes like `text-red-500`
- **No lock file changes**: Don't update `pnpm-lock.yaml` or `Cargo.lock` unless updating dependencies is the purpose of the PR
- **AGPL-3.0**: This project is AGPL-licensed. Derivatives must be open source with the same license
## Pull Request Guidelines
- Fill the PR description template
- Reference related issues (`Fixes #123` or `Refs #123`)
- Include screenshots/videos for UI changes
- Ensure "Allow edits from maintainers" is checked
## Architecture
- **Frontend**: Next.js (React) — `src/`
- **Backend**: Tauri (Rust) — `src-tauri/src/`
- **Proxy Worker**: Detached process for proxy tunneling — `src-tauri/src/bin/proxy_server.rs`
- **Sync**: Cloud sync via S3-compatible storage — `src-tauri/src/sync/`, `donut-sync/`
- **Browsers**: Camoufox (Firefox-based) and Wayfern (Chromium-based)
## Getting Help
- **Issues**: Bug reports and feature requests
- **Discussions**: Questions and general discussion