We looked at makign a single app that could talk both protocols, and it is doable. But it wouldn't feel natural. There's just enough difference that one would feel like a second class citizen. So instead what we're doing is building a new from scratch core app: https://github.com/planetary-social/nos

And we'll be moving over the swiftui parts from planetary: https://github.com/planetary-social/planetary-ios/tree/main/Source/UI

One thing we're considering is a local relay. That would be a kind of local store to allow offline and mesh syncing of nostr. I think at the moment the way relays are being used it's very hard to get and and build deep histories, because you're just getting recent messages from the relays. There are fixes, but it's a problem at the moment.