That’s actually another great option but I think the universality of using nostr:npub1mutnyacc9uc4t5mmxvpprwsauj5p2qxq95v4a9j0jxl8wnkfvuyque23vg with traditional login gives a more seamless experience. But honestly if it can be done as smoothly with simple generating key and saving to keychain then absolutely make that a default option as well