Saferpay Payment Gateway + Kirby

I have been wondering if anyone of you guys is using the Saferpay Gateway ( ) with Kirby. Honestly I can’t really figure out how to even start with it, I’d like to be able to have several product pages using that payment gateway.

I mean i know how to do it with Paypal and it’s so much more straightforward, but i can’t get started with this one. Anyone has a hint?

just for completion:

six payment is providing an example script for using the payment, which a few changes i could implement it to my needs.