This sounds really interesting. I've never heard of this payment option. So you see offers via nostr via an app?) to buy bitcoin, contact each other via nostr, give your invoice via nostr and you go to the bank to pay to seller. But in what way? Cash? Usually at a bank you need to identify yourself. How can you do this anonymously?
Discussion
These are not advertisements, I have some p2p contacts. In the country I'm in, there's a technology that I imagine doesn't exist everywhere, like a lightning invoice payable at any bank.
For payments of less than $400 (at today's rate) banks do not require you to identify yourself.