Open-source terminal multiplexer built for coding agents — run Claude Code, Codex, OpenCode and more from one terminal on any box, with persistent PTY sessions you can detach and reattach from any device, even a phone over SSH.
Install it with:
curl -fsSL https://herdr.dev/install.sh | shA tmux-for-agents: real terminal panes over persistent PTY sessions that live on the server, so you detach and reattach from any machine — laptop, another box over SSH, or your phone. Sessions survive disconnects, and per-agent state (blocked, working, done, idle) is visible at a glance.
Controllable from the CLI or a JSON socket API, with 150+ community plugins. No Electron, no accounts, no telemetry. Also available via Homebrew and Nix; Windows install is in beta.