nostr:npub1ds3hmzemzgp9rsuvyvxqdk0y3uxnq9m903dktjxrvyfwk9w99t4sc2hzcn is there a way for merchants to advertise and set discounts for payment in btc?

cc nostr:npub1spralxq6jlw5rdy0249vqr5sh43rfrlx2wzv3rhjjqedw559w9psrs8s72