Harness by Autonomous: Every coding agent, every machine, one command center.

Each agent keeps running on the machine that hosts it, so putting sessions side by side does not copy projects between computers. Machines link with a password instead of SSH keys, Tailscale or port forwarding. Traffic goes over an encrypted WebRTC channel, falls back to Cloudflare's TURN network when a firewall blocks the direct path, and uses a relay only while the connection negotiates. The relay holds no keys. Supported agents include Claude Code, Codex, Cursor, OpenCode, Devin, Amp, Copilot and Hermes, and each agent gets its own git worktree to avoid conflicts. Sessions keep going after the app is closed. The GitHub repository for Autonomous's project had about 1.3k stars and 111 forks at the time of writing. Autonomous also sells a $149 hardware Harness Device that shows agent status and sends an alert when tasks finish. Its firmware, schematics and 3D design are open source. The company lists Linux support as still in progress on its own site, though Product Hunt says it is free on Mac and Linux. For founders, the agent CLIs are becoming interchangeable parts, and the control layer above them is where teams spend their attention. Engineers who run several vendors' agents across laptops and cloud boxes need one place to see which session is waiting. An open-source, end-to-end encrypted option puts pressure on paid orchestration tools. It also makes vendor lock-in harder for single-agent products.