My side projects are built _way_ more carefully than production code. Clearer structure, more refactoring, more testing. Near zero documentation though. The co

My side projects are built _way_ more carefully than production code. Clearer structure, more refactoring, more testing. Near zero documentation though. The cost/time tradeoffs are different. When someone is paying for it, it has to ship asap. When other people are working on the same code you can't go too far off the beaten path. So you may end up trapped in the world of cmake for example. 3. is a slightly confusing question. You built it, therefore you understand it, no? It's the stuff built by other people that needs visualisation tooling, especially if it keeps changing.