Probably US only right now. Borders, governments and regulations and all that amiright? 🙄
How come no #Bitcoin payments nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m ?! :-) (believe it is a “Square” device). 
Discussion
My assumption is pressure from Visa/Mastercard?! Any regs that would stop it (if a “money transmitter” already)?