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The multi-device control room to orchestrate teams of 100+ coding agents

From your phone, desktop and browser.

Claude Code, Codex, OpenCode, Pi and more, working together and in parallel on your own machines.

Sessions can spawn subagents across agents: e.g. Claude asking Codex for a review, or Codex delegating work to Claude subagents. Switch agents mid-session. Approve, steer, review and commit from wherever you are.

Open source · Self-hostable · End-to-end encrypted

Get started · Downloads · Docs · Self-host · Discord

Latest Happier project update

Get started

1. Install on your computer

The desktop app is the recommended way in: it sets up the CLI and the daemon for you.

Prefer the terminal? Install the CLI and daemon without the desktop app

macOS/Linux:

curl -fsSL https://happier.dev/install | bash

Windows:

iwr https://happier.dev/install.ps1 -useb | iex

If you specifically want the npm package instead: npm install -g @happier-dev/cli (CLI docs).

Already use Claude Code, Codex or another coding agent? Let it set Happier up with you

Paste this into your agent:

Set up Happier on this computer by following https://docs.happier.dev/getting-started/agent-setup.mdx
Fetch that file raw (for example with curl) and follow it step by step with me.

It asks what it needs to know, confirms each change, and leaves the sign-in approval and your agent's own login to you. Set up with your coding agent

Use Grok Bot? Install and manage Happier through Grok on X

Install the Happier session control Grok Bot on X. On first run it installs the Happier CLI on its own computer, pairs with your Happier Cloud account or self-hosted relay, and starts the daemon. You control how hands-on it is: watch only, assist, or drive sessions. Grok Bot integration

Installing on a remote computer or devbox? Set it up over SSH, from your machine

One command installs the CLI and the daemon on the remote host (release-signature verified) and registers it as one of your machines:

happier machine setup --ssh user@host

To sign the remote machine in without a browser on its side, run this from a machine where you are already signed in:

happier auth pair-remote --ssh user@host

Headless alternative on the remote host itself: happier auth login --no-open --method web prints an authorization URL you approve from any browser. Machines and the daemon

You sign in from the app, or on first run.

2. Add your phone

Sign in with the same account and your sessions, machines and settings are already there.

3. Start a session

In the app → Press New session, pick the machine, the folder and the agent. No terminal needed.

Or in the terminal, from any project folder:

happier            # Claude Code
happier codex      # Codex
happier opencode   # OpenCode

Either way, the session shows up everywhere at once: keep typing in the terminal, follow along and approve from your phone, review in the browser. happier --help lists the other agents and commands.

What you can do