I am not sure I am doing it the right way or if there's a right way, but what I do is generate small files one at a time, with a functional system of stateless input/output. That way I can focus first on architecture, then on stateless input/output Lego blocks, and just ask the AI to generate the Lego blocks. Like this, everything is easy to keep in mind and update and change after experiencing the tech and having emotions telling me what to change. It has been working great for me. It strikes a good balance between simple and robust, fast to build, plus easy to update. The other thing is that since I haven't spent too much energy on writing the code, it is very easy to detach emotionally from it when reality gives me new info that requires throwing out part of the system.