And something like nostr.build ties into that, as you can upload your own stuff and publish the wrapper from there.

They have albums. If they used an album event, then you could have albums that are displayed on this app.

Then other people don't need to use nostr.build or sovbit.host or self-host, or whatever, to see your albums. This app would pull in albums from all over. You could then wrap other people's media and add it to your own pins. Could add an e tag showing the original source of the media.