You start with this big block of marble - aka code base with infinite possibilities. And then you use your very precise scalpel skills - aka prompting skills to carve out the piece of software that you envisioned and wanted to bring to life.
Building Notebook has been an exercise in reducing the blogging experience to fit the needs I have, for a long time, wanted to have on any blogging platform. And because it did not exist in the world, I was compelled to bring it to life.