Yes, I think this is the way! nostr:nprofile1qqst9q2kst8us07d9sad6ptctn69w0wn3pzhq6vhfnrd3n9qdv7rk7qpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtc83yndu has recently done a proof of concept with the cashu .me wallet that does exactly that. Maybe you can help us integrate this into the wallet so it can be used by a host iframe like iris. It would also open up the possibility for doing nutzaps later.