I just changed my Lightning Address on #nostr to be

brianoflondon@hbd.v4v.app

That will automatically convert sats to Hive Backed Dollars HBD. So I have a stable coin Lightning Address.

I can also send HBD back out to Lightning via https://v4v.app

I left my NIP-05 address as brianoflondon@v4v.app but I could change that as well... thinking about it.