I recently discovered nostr:nprofile1qy2hwumn8ghj7etyv4hzumn0wd68ytnvv9hxgqgdwaehxw309ahx7uewd3hkcqpqexv22uulqnmlluszc4yk92jhs2e5ajcs6mu3t00a6avzjcalj9csna6fpr
It reminds me of the kind of decentrali...
not sure about apps but chatting with humans at a bar is pretty decentralized