So hypothetically if I have a widget to sell, it would be nicest to have a single page store on a website; so that whenever a purchase is made I get an email. Then I pack, label, and ship the widget. Easy peasy.

I'm not very familiar with the nitty gritty of ecommerce, but I suspect things like shopify exist to keep things this simple for the seller.

So my question is: "What are the options for selling widgets on a stand-alone website for crypto?"

I can't just post a crypto address, because I need some basic info on the customer. Maybe I could request an email that includes that information, alongside a private key with the cash? Or maybe there's a solution that already exists?