popmechanic/VibesOS ? reverse-engineered prompt

Build me a simple desktop style web app for Claude Code that helps me make small multiplayer apps without needing a backend.

I want the whole experience to feel easy for someone who is not technical, with a clean editor flow where I can describe an app in plain English and get a working result fast. The apps it creates should be single file, local first, and work offline, then sync when needed so a few people can share and edit the same thing from a link. Keep the data stored in the browser and make it portable and secure.

Please make it feel polished and friendly, with a clear launch screen, an editor view, and a hidden settings area for sync and collaboration options. It should be simple enough for vibe coding, but still produce real usable mini apps like chore charts, sign up sheets, or small games. If you need to, look up current docs online and make sensible choices.