> ...documenting the code design... I would say that code is an implementation of (part of) a design, and both implementation and design should be documented ap

> ...documenting the code design... I would say that code is an implementation of (part of) a design, and both implementation and design should be documented appropriately. If it's not present, make as much text and visualizations you need for you to understand it. As you are a developer start with the code. I prefer C4 over UML for the separation of contexts. Good and fun exercise!