It generates LNURL invoices, I was able to pay it with my nostr:npub1mutnyacc9uc4t5mmxvpprwsauj5p2qxq95v4a9j0jxl8wnkfvuyque23vg with no issues.

This is so simple and incredible and since it’s offline there’s a hash code after that you can use to verify the payment was made in the companion app.

Super cool concept.