Ask HN: What is your ecommerce setup?

Since so many of you have wonderful products that you sell/charge for, there must be a great variety of services being used. So, let us know, what platform/setup do you use to sell your wares and/or charge customers? What do you use for payment processing and digital delivery? Do you use a service for the entirety or only for bits and pieces? Is your setup on your own domain, does it redirect, or is it all on another domain? Etc.