Plaza is a non-custodial Lightning point-of-sale for real-world merchants.

Connect your own wallet: NWC (Nostr Wallet Connect), Lightning Address, or LNbits
Charge from a keypad or your product catalog — with tap-to-pay over NFC
Cryptographically verified settlement on every payment rail
Schnorr-signed receipts stored on Blossom — re-showable any time
Merchant discovery map over Nostr and BTCMap
Zero transaction fees is a founding commitment, not a promo

Your keys, your money, your customer relationships. No middleman, no data
extraction, no deplatforming.