Meta’s official macOS cookbook ships metacua—a hackable CLI where Muse Spark captures the screen, calls computer tools with normalized 0–1000 coordinates, and executes native mouse/keyboard events until `computer.stop`. Distinct from community Muse Jailbreak (Chrome tunnel): this is Model API + local GUI loop. Warning: real Mac control; prefer a VM/dedicated user; leave `--allow-bash` off unless isolated.