I'm also really excited about nostr wallet connect. I'm using it as the backend for payment terminals that forward sats to any lightning address with the scrub extention.
I can literally set ip payment terminals using free and open source software. A fiat maxi with a mobile phone can literally get the sats automatically converted to fiat. They can send that fiat to their bank account within 30 minutes. I'm not a fan of fiat, but credit card fees and chargebacks also suck.