Zeus and Square play nice together. Messed around and worked pretty good.
With Square dragging their feet on support for bitcoin payments, I'm excited to begin tinkering with Plebian Market; I've created a storefront and added a couple of items to ease into the platform. To support this Nostr + Bitcoin powered solution, I'll be steering 3% of sales to help support their contributors. Here's a listing for the milled aluminum signers I also offer in my Square store.
https://plebeian.market/product/f8b2e731-85c8-4f67-b403-241d53f8f90c
Discussion
For online sales through "Square Up"?
I am pretty sure you could get it to work. All that happens is you put bitcoin or etc and it passes it through zeus to pay the invoice (need a way to send that zeus invoice through your online site). Mean only other option is using btcpay and passing invoices to it from square using there api (know its possible but havent done it yet)