An open-source background agents coding system inspired by Ramp’s Inspect. It provides a hosted background coding agent that can access full development environments (Node.js, Python, git, browser automation, VS Code), connect from various interfaces (web UI, Slack, GitHub PRs, Linear issues), and use AI models like Anthropic Claude, OpenAI Codex, or OpenCode Zen to work on tasks autonomously. The system supports multiplayer collaboration, scheduled tasks, and spawning parallel sub-tasks in separate sandboxes.