Anyway… watch the videos the OP has of the coding live streams. Thats the most interesting part of this post: actual real examples of people really using these tools in a way that is transferable and specifically detailed enough to copy and do yourself.
Codex / Jules etc make this pretty easy.
It's often not a sustainable pace with where the current tooling is at, though.
Especially because you still need to do manual fixes and cleanups quite often.