How's this? Using lnurl-withdrawal/payment links on the nfc device?
Using NFC to send a #Lightningnetwork payment with nostr:npub1xnf02f60r9v0e5kty33a404dm79zr7z2eepyrk5gsq3m7pwvsz2sazlpr5 on IOS to my nostr:npub1hcwcj72tlyk7thtyc8nq763vwrq5p2avnyeyrrlwxrzuvdl7j3usj4h9rq lightning address :
jimzap@walletofsatoshi.com
#QRCode🤬
This the next step ⚡️
#Bitcoin https://nostr.build/av/7625e13083e21c40bb262b7ac584d9a956ba5d82273448b9a55c8990a148a688.mov
Discussion
I just wrote my ⚡️ address on a NFC tag using the NFC Tools app. The memory on the tag is limited, so I haven't been able to try it with an LNURL invoice yet. It requires around 300 bytes. However, it should work perfectly with a Point of Sale system using an NFC dongle