As it turns out, it's actually super-easy to set up an ecommerce website.

Freewebstore.com is by far the easiest solution I've found to hosting an online store. Seriously. two hours ago I didn't even have an account there, and now I'm able to sell my digital media and securely conduct transactions. What's even better? You don't need to know a lick of code. (Of course, it would help if you do.)

They have tons of themes to choose from, and they're all fairly customizable.

Your account is automatically set up to use Stripe as default payment, but you can add other payment options (Like PayPal.) It does not support cryptocurrency and sadly, there is no simple solution to delivering your digital products automatically. That's kind of a bummer in my case. You can easily work around this by e-mailing the customer a download link manually.

I don't have anything to gain from promoting this site, I just thought that it was super-simple and that other people should know about it.