The onboarding client i just mocked up will not only use NIP-65 to store user’s relay choices, but will also allow discovery of their friends’ chosen relays.
Social recommendations solves many onboarding challenges, and they all start with the nostr advocate who invited their friends.
This client will:
nostr:note1n56dpv3ck393nz9axmf5j9esnyaj642sfawqne4zs9ufy9865cvqu056gx