If it’s 4 months of hard work, then it’s not like you’re blindly doing it as the top commenter mentioned.

That is true, I was mostly speaking about a supposed need to review the code.

My effort instead goes to manual QA testing, providing feedback and preferences, and asking questions.

The limitation here is mostly that the model does not know what looks and feels good.

With improvements to the vision capabilities and a better understanding of motion, or what looks appealing to humans, the implementation could probably happen much more autonomously.