[kqr]

> The bonus of doing it manually for a while is that I found a lot of edge cases I would have missed otherwise. The initial release of the finished feature was rock solid thanks to what I learned.

This is one of the great benefits of doing things that don't scale. Reality has a surprising amount of detail, so to write code for a process you need to be an expert at that process. How do you become an expert at anything? You have to do it for yourself.