Limen OS

A design and codebase for a voice-first, AI-native desktop shell. Early-stage. Built on Tauri v2, Babylon.js, and multi-model AI routing.

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What Is Limen OS?

An opinionated bet on what a desktop shell could look like if voice and AI were designed in from the start — not bolted on. The three design principles it's being built around:

1. Voice-first — camera and microphone as primary inputs; keyboard and mouse as fallback
2. AI-native — multi-model routing (Claude → GPT-4 → Gemini → Deepseek → Groq) throughout, not as a feature
3. Beautiful & lightweight — Babylon.js WebGL/WebGPU rendering; no visual debt allowed

The target runtime is Tauri v2 on Linux/Wayland, plus a browser kiosk mode, a Ratatui TUI over SSH, and a Flutter mobile companion. Most of this is still being built.

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Repository Layout

apps/
  shell/       Tauri v2 desktop shell — Babylon.js scenes + React 19
  tui/         Ratatui TUI — SSH-accessible, full feature parity
  mobile/      Flutter companion — voice relay, remote control, second screen
  player/      @waldiez/player — media player with DJ mixer + cross-attentional modes

crates/
  limen-core/  Core daemon: IPC, session, WID integration, WASM plugins
  limen-ai/    AI orchestration: multi-model router, intent, context
  limen-voice/ Voice: Whisper ONNX STT, Kokoro/Piper TTS, wake-word
  limen-display/ Display: Wayland/X11 bridge, window management

packages/
  ui/          @limen/ui — Babylon.js component library, shaders, widgets
  voice-client/ @limen/voice-client — WebSpeech + WebRTC + visualizer
  ai-client/   @limen/ai-client — multi-model client router

docker/        Caddy + Docker Compose for limen-os.io
docs/          Architecture, API reference, guides
services/      smartcities, sinergym AI environments

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Quick Start

make setup      # Install all deps (Rust, Bun, Flutter)
make dev        # Start Tauri shell + TUI watcher + mobile emulator

See DEVELOPER.md for the full developer guide.

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Documentation

• Philosophy — The Grandmother Test and design principles
• Getting Started — Developer setup
• Architecture — System design deep dive
• API Overview — IPC and plugin API reference

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Related Projects

• hitl-ml — The HITL Machine Learning handbook that contextualizes this project
• waldiez/wid — Hybrid logical clock identifiers; every session, event, and plugin action is stamped with a WID
• waldiez/player — Media player that lives in apps/player/; upstream for that subtree

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License

MIT OR Apache-2.0 — © 2026 Lazaros Toumanidis