Maestro runs on Mac, Windows and Linux. It works with the agent CLIs you already use, Claude Code, Codex, Cursor, OpenCode or Kimi, through the logins you already have, and never stores an API key. Every agent gets its own git worktree, terminal, diff viewer and a live preview of your app it can click around in. There are no limits to how many agents you can spin up. You can chain multi-harness coding agent workflows with custom prompts. It even runs whole projects on a remote box over SSH.