I tried buying some candy and a drink at a Pick'n'Pay in Cape Town, ZA last week. Before traveling, I had heard about the crypto qr app that would convert a payment QR code to a lightning invoice listening to nostr:npub1r8l06leee9kjlam0slmky7h8j9zme9ca32erypgqtyu6t2gnhshs3jx5dk. I was very excited; the app seemed rather slick and the test transation worked. At checkout, payment failed; in hindsight it was probably because my VPN was turned on. As I fell back to tapping my phone for a credit card purchase, I was still bullish. Frictions will lessen; we are still early.