5,800 Lines in One Day: Bootstrapping a Full Pipeline With gpt-5-codex

The hardest part of a new project is "where do I start." I started by handing the entire scaffolding job to gpt-5-codex. ShortsMaker - a tool that takes saju (Korean astrology) data and produces short-form video - went from zero to 5,800 lines across 4 commits in a single day. Scaffold Everything in One Shot Do not create files one by one. Generate the entire skeleton at once. The prompt: "Bootstrap a Python project that generates short-form video from saju data.