Install the first pet

Install Codex, sign in to the Codex App, and confirm the terminal or IDE uses the same Codex home. The App is where the pet renders; the terminal is where this quickstart will install it after launch.

This command runs from any terminal with Codex access. The install writes the pet into the local Codex home used by the App.

Open the Codex App, refresh custom pets from Appearance settings if needed, then wake the pet overlay from the composer or command menu.

Use /hatch when you want Codex to generate a local experiment. Use The Hatchery when you want a creator-made pet with a stable install ID.