For example, the Keet UX for now is not very good, so I can't even recommend it to anyone except early tech adopters. So if I was them (hole punch team), I would make it bit better before releasing the code. Building stuff that don't require servers have a lot unique challenges, so it takes time. For now I'm just watching and cheering them. Idea is very good, but pending execution. There are also some privacy issues as well, that needs to be resolved. All communication is encrypted, but because its p2p, there is a suspicion that peers leak their IPs to each other. On the other hand, privacy on Nostr is total downer. Still a lot of work in this space needs to be done.