# Clark

- **Event:** [Claude Build Day](https://cerebralvalley.ai/e/claude-startups-build-day)
- **When:** Sat, Jun 13 at 9:00 AM – 10:00 PM (PDT)
- **Where:** San Francisco, CA
- **Team:** [Stanislav Kirdey](https://cerebralvalley.ai/u/clark)
- **GitHub:** https://github.com/clark-labs-inc/clark-desktop
- **Website:** https://github.com/clark-labs-inc/clark-desktop/releases/download/v0.1.0/Clark.Desktop_0.1.0_universal.dmg
- **Demo video:** https://youtu.be/yR9Dn97ixnw
- **Gallery:** https://cerebralvalley.ai/e/claude-startups-build-day/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/claude-startups-build-day/hackathon/gallery/11

Clark Desktop - an open-source, cross-platform desktop client for agentic work and a clean-room native client for clarkchat.com, competing with Manus and Perplexity Computer. 

One Tauri 2 UI (React 19 + Tailwind v4, ~10MB binary, no bundled Chromium) talks to many agent backends through a single Rust Provider trait: ACP local CLI agents (Codex, Claude Code, Gemini) and the remote Clark  runtime (WebSocket + msgpack). 

The performance-critical engine - transport codec, event projection, run lifecycle - is written once in the `agent-core` Rust crate and compiles to both native (desktop/mobile) and WASM (web). 

Surfaces include streaming chat, a tool-call timeline, live plan, permission gates, inline artifacts, and an agent "computer" view. 

Apache-2.0; no proprietary Clark source is used.

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Markdown version of https://cerebralvalley.ai/e/claude-startups-build-day/hackathon/gallery/11. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt