Claude Code, Codex and OpenCode on a machine in your own GitHub or Hugging Face account, with a phone UI that shows which agent needs you.
If GitHub refuses the redirect, check the OAuth App has exactly this callback URL. Or sign in with a code instead.
Enter this code on GitHub, then come back here. This page will notice on its own.
Root token, shown once. Your phone trades it for its own device token when it opens the box. Keep a copy to add another device later.