Is it possible to create a payment link that customer can follow to pay you a certain amount without dinking with all the invoice/product/price junk? If I create an invoice in another system I want to put a QR code on those invoices that customers can simply follow and pay. That link/payment should be tied to metadata I provide to Stripe--associated with that link. Sort of like a hosted UI payment page. I think PayPal does that but I want to stay away from them.