Claudette is built entirely on open source technologies. Here’s what powers it and why we chose each one.
| Technology | Role | Why we chose it |
|---|
| Tauri 2 | Desktop app framework | Native performance with a tiny footprint — no Electron, no bundled Chromium. The result is a <30MB binary with <2s cold start. |
| Rust | Backend language | Memory safety without a garbage collector, excellent async support via Tokio, and the ability to ship a single static binary. |
| Tokio | Async runtime | Powers all our concurrent operations — process management, git operations, WebSocket connections, and PTY I/O. |
| Serde | Serialization | Ubiquitous serialization framework used throughout the codebase for IPC, JSON streaming, and database models. |
| Technology | Role | Why we chose it |
|---|
| React 19 | UI framework | Component-based architecture with a massive ecosystem. Runs inside Tauri’s webview. |
| TypeScript | Language | Strict mode throughout — catches bugs at compile time and makes refactoring safe. |
| Zustand | State management | Minimal, fast, and flexible. A single store with domain slices keeps state predictable without boilerplate. |
| Vite | Build tool | Instant HMR in dev, optimized production builds. Tauri’s default frontend toolchain. |
| Lucide | Icons | Clean, consistent icon set with tree-shaking — only the icons we use end up in the bundle. |
| react-markdown + remark-gfm | Markdown rendering | Renders agent chat messages with full GitHub Flavored Markdown support — tables, strikethrough, task lists. |
| Mermaid | Diagram rendering | Renders sequence diagrams, flowcharts, and other diagrams embedded in agent output. |
| pdf.js | PDF rendering | In-app PDF viewing without leaving Claudette — useful for reviewing generated documents. |
| i18next | Internationalization | Framework for UI string translation, keeping user-visible text out of component logic. |
| react-resizable-panels | Panel layout | Drag-to-resize panels throughout the UI — sidebar, diff viewer, terminal split. |
| ansi_up | ANSI rendering | Converts ANSI escape codes in agent output to styled HTML for display in chat. |
| Technology | Role | Why we chose it |
|---|
| xterm.js | Terminal emulator | Full-featured terminal rendering in the browser, with addons for link detection and responsive sizing. |
| portable-pty | PTY management | Cross-platform pseudo-terminal creation from Rust — connects real shell sessions to xterm.js. |
| Monaco Editor | Code editor | The editor that powers VS Code, embedded directly in Claudette for the diff viewer and plan editor. |
| Shiki | Syntax highlighting | TextMate grammar-based highlighting running in a Web Worker — never blocks the main thread. Integrated into Monaco via @shikijs/monaco. |
| Technology | Role | Why we chose it |
|---|
| SQLite (via rusqlite) | Database | Embedded, zero-config, local-first. All data stays on your machine in a single file. |
| Tungstenite | WebSocket | Async WebSocket client for remote workspace connections. |
| rustls | TLS | Pure-Rust TLS backed by AWS Libcrypto (aws-lc-rs) — no OpenSSL dependency, easier cross-compilation. |
| reqwest | HTTP client | Async HTTP client used for plugin marketplace requests and plugin downloads. |
| rcgen | Certificate generation | Generates self-signed TLS certificates for the embedded remote server — zero-config secure LAN access. |
| mDNS-SD | Service discovery | Automatic LAN discovery of remote Claudette servers — no manual IP configuration needed. |
| Technology | Role | Why we chose it |
|---|
| mlua / Luau | Lua runtime | Sandboxed Lua runtime (using Roblox’s typed Luau dialect) that powers SCM and env-provider plugins. Luau adds type annotations and safety guarantees over standard Lua. |
| Technology | Role | Why we chose it |
|---|
| Candle | ML inference | Hugging Face’s minimalist ML framework in Rust — runs local voice transcription models with Metal GPU acceleration on macOS. No Python, no server, no data leaves your machine. |
| cpal | Audio I/O | Cross-platform microphone capture — abstracts Core Audio, WASAPI, and ALSA behind a single API. |
| tokenizers | NLP tokenization | Hugging Face tokenization library for preprocessing audio transcripts before inference. |
| rubato | Audio resampling | High-quality sample-rate conversion to normalize microphone input before sending to the model. |
| hound | WAV I/O | Lightweight WAV file reader/writer for audio capture and playback. |
| Technology | Role | Why we chose it |
|---|
| Astro | Static site generator | Fast builds, zero client-side JS by default, excellent MDX support. |
| Starlight | Docs framework | Astro’s official documentation theme — search, navigation, and dark mode out of the box. |
Every technology choice reflects Claudette’s values:
- Lightweight — Tauri + Rust means a tiny binary. No Electron, no 200MB runtime.
- Local-first — SQLite keeps your data on your machine. Voice transcription runs entirely on-device via Candle. No cloud database, no account required.
- Native performance — Rust backend handles concurrent agents, git operations, and terminal I/O without breaking a sweat.
- Extensible — The Luau plugin system lets the community add SCM providers and env integrations without touching core Claudette code.
- Open source all the way down — every dependency listed here is open source. You can audit the entire stack.
