Cool! I did a quick test. Some feedback:

- Being able to set shipping options (e.g. local shipping - free, international shipping - X sats)

- Inventory amount should be on product variation level, not on the product level

- Promo codes seem to not work at the moment - I get "inactive" when I create one. It would be cool if they are optionally also affiliate codes so that the person sharing their code also gets paid to a lightning address (this could possibly be done manually for now - but would be cool to somehow account for it)

- Email notifications would be cool (both to the store owner and a confirmation email to the customer, if they provide an email)