You can see how people explain what they do. Does the explanation itself become massively complex? Is there a reasonable high level explanation, or is it a mess

You can see how people explain what they do. Does the explanation itself become massively complex? Is there a reasonable high level explanation, or is it a mess of ifs and buts? As for actually keeping things clean there's any number of things that can be mentioned. Reasonable abstractions, issue tracking, version control, documentation, choice of frameworks, and so on.