KC Cauldron review for SKELTA Buy X Restrict Y

We were are looking for a solution to “Buy X (or add it to the cart), and restrict EVERYTHING ELSE on that purchase" and we didn't want to set up hundreds of one-to-one dependencies for each item in their store or put items into collections to achieve this restriction, so the great support folks a Mage Company suggested that we create one collection with that single product and then, restrict all other collections based on that collection. The app now meets our needs and made our Shopify Store much easier to manage.