The venerable Plone add-on GetPaid's warranty was expiring, so in 2013 when we needed to build a payment component for The Mountaineers' website (mountaineers), we started with a simple Javascript shopping cart and a Stripe integration and went from there. Over time, more features were added and additional clients needed e-commerce, so we extracted the generic bits into a new add-on, jazkarta.shop. It allows for pluggable payment processors, shipping providers, and APIs for calculating state and local taxes, and it can now be used with Plone 4.3 and 5. We'll talk about why we went down this path and describe the use cases jazkarta.shop is designed to handle.