Binary-Bytes/Auto-YouTube-Shorts-Maker ? reverse-engineered prompt

Build me a simple Python tool that makes YouTube Shorts automatically from gameplay clips.

I want to run one script, enter a video title, and then either let AI write the short narration or type the text myself. If I add an OpenAI API key in a .env file, use that for the content, but it should still work without it if I just want to paste in my own script. Then turn the text into voice audio, pick a random part of a gameplay video from a local gameplay folder, put the narration over it, trim and resize everything into a vertical 9:16 short, and save the finished video in a generated folder.

Please keep it easy to set up, with a clear requirements file and a simple README style flow. If anything needs current docs or best practices, look them up online first. I also want a small demo or sample folder setup so it’s obvious how to use it right away.