To my understanding, the BTCPay server integration requires the use of the ln address as your nip05. I don't want to do that.

(Also it's nostr:npub1a3xjg8pngvgm8gcygvlwx3ptu2wsaz88asvmshkl9waznwf4vh3qqrx0r7 server, not mine, so while that's "Uncle Matt" model and thus better than one big WoS waiting to get hacked or "hacked", it's not really self-custodial neither.)