Listr.lol is a microapp for creating different kinds of lists and or other kinds (there are few) made by nostr:npub1zuuajd7u3sx8xu92yav9jwxpr839cs0kc3q6t56vd5u9q033xmhsk6c2uc.

After you create your lists (public or private 🤙) they later appear in some clients like Amethyst. Rest you can imagine from twitter. Try it login with nostr extension cheers