The part of northcinder I would read first is the checkout rule, not the product comparison. According to the README, a recommendation is not permission to buy, and every checkout needs a fresh approval for one exact offer and one unit, signed and usable once. For anyone who has designed author...
Source: [Dev.to](https://dev.to/renolu/northcinder-treats-a-purchase-approval-like-a-single-use-credential-278c)