But could you make a website that is just a button that says clone me a nostr client. And it will clone amethyst or Damus or jumble and make a 'unique' cloned client each time? Press button, client is cloned and apk is posted to git hub. Oh actually this doesn't work for Apple users but still.

Also isn't it a matter of time till APKs are banned? How about phones which don't even allow a different OS?