A good way to operate this is to keep using a regular payment processor for checkout, but use this for payouts, so you can still accept cards and enjoy fee savings (there's a prompt on the homepage that will set it up for you just like this).

Zoneless is completely independent of Stripe, you do not need Stripe approval or a Stripe account to run it. We have some beginner guides in our docs for handling topping up / exchanges. I use Kraken+, which is about $5/month and removes trading fees.