I agree with nearly everything you said except modularity, I don’t find it’s a metric of code quality. At the early stage I fail to see how to properly modularize, most of the time features and customer requirements evolve so much between customers that I usually find it’s more pains than gains for the rare time the initial design hold. In my experience (B2B/high touch sales) I sometimes write a plain and simple hardcoded « if customer == "XYZ" » until the use case is refined and the market for the feature proven with at least a few paying customers.