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Clark

Claude Build Day

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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clark

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