Snow White
Seven named dwarves, one orchestrator, hats handed out per task.
A cottage is yours the moment you make one. It comes with a link containing a secret, and that link is the only way back in — there are no accounts and no password reset. Keep it somewhere you will find it again.
Anyone you give the link to can read the cottage, change it, and run code in it. Treat it like a key rather than a bookmark.
The dwarves need a model key, which stays in your own browser and is sent with each request only to reach the model. It is never written down here. Use a project key with a spend limit, and revoke it when you are done.