A tool like "Gumroad for crypto"

I have been working on a tool that lets you create a link which a customer can use to submit crypto payment for a (digital) product you're selling: subscription to online service, ebook, video, etc.

But I don't know who my demographic is and what they'd want.

Anyone interested? If so, would you be willing to share some feedback?

Here's a screencast of what I've built so far: https://drive.google.com/file/d/1JyYGGfIJG9c-BB66Puh5fSydYmK2RpUY/view