nostr:npub1zuuajd7u3sx8xu92yav9jwxpr839cs0kc3q6t56vd5u9q033xmhsk6c2uc how do you feel about reusing the MLS spec for other subprotocols?, like we define a NIP for simple notes, then notes clients create a group with all your devices (assuming it's just for personal usage and only you will see your notes) and use some selected relays to save and sync your notes encrypted using the group key.