Also documents the two things that stop an install dead: the repository must be public for Home Assistant to clone it anonymously (a private repo shows nothing in the store and gives no useful error), and config.yaml's `version` must be bumped for every change or Supervisor reuses the previously built image. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016NckgXecasQb2eSsPYNSW6