I want to make a small one-page online store. The site implies only a shopping cart with the product and its payment, as well as search. I would still like to implement authorization, but I am ready to give it up. At the front side, I want to use react with ssg from gatsby. Bit i am not good with backend and I want to use wordpress as cms. I had a problem at the architecture construction stage. I don’t understand how to integrate the front with the basket. Do I need to install a default theme? Or do I need to do the layout from scratch and the plugins allow me to integrate the shopping cart?