Maybe you can use Blink – The Everyday Bitcoin Wallet (npub13lj…cfhw)
You can create a POS to accept #bitcoin payments your username like this example with mine:
🔗 https://pay.blink.sv/marcelo
marcelo / 🇦🇷🧡 Marcel 🟠⚡️ #Bitcoin is Hope 🙏 thebitcoinconf
npub1xw…tl3nz
2024-02-07 13:52:19 GMT
in reply to nevent1q…287h
Author Public Key
npub1xwwmvty3er863uy9lz03zhc6m9wlzr88f9esywdkq4xjg5en9yyqktl3nzSeen on
wss://nos.lol