Happier
A web, desktop and mobile client that lets a developer run and orchestrate coding agents such as Claude Code, Codex and OpenCode in parallel across their own machines.
Happier is a control room for running teams of coding agents. It connects to Claude Code, Codex, OpenCode, Pi and other agents that speak the Agent Communication Protocol, and lets a developer start, steer, approve and review sessions from a phone, a desktop app or a browser while the agents run on the developer's own machines.
Sessions can spawn subagents across different tools, for example one agent asking another for a review or delegating work, and a developer can switch which agent is driving a session mid-way through. The project is open source, self-hostable and end-to-end encrypted, and installs through a script or an npm package, with a daemon that can also be set up on a remote machine over SSH.