BitFun

BitFun is a desktop-grade Agent runtime (local Agent runtime) and a set of ready-to-use desktop Agent applications. Built on a Rust core with a Tauri shell, it includes built-in session management, tools, memory, MCP, LSP, and remote control protocols, designed for long-running operations. After a single installation, you gain access to four official Agents: Code, Cowork, Computer Use, and Personal Assistant—covering mainstream Agent functionalities across today's industry. BitFun aims to integrate coding capabilities, office productivity, assistant experience, and computer control into one desktop application, providing a complete protocol stack that users can immediately use or extend to define their own domain-specific Agents.