alex-magter/QuickYTD — reverse-engineered prompt

Build me a really simple, fast YouTube downloader app with a clean minimal feel. The main use case should be easy, I paste a YouTube link, the app loads the video details, then I can choose whether I want the video or just the audio, pick from the available quality options, see the estimated file size before I commit, and then download it.

I want it to work on Android first, with a polished mobile UI that feels lightweight and straightforward. Let people save straight to Downloads or choose another folder if possible. Show clear states like loading, video info found, downloading, success, and errors. It should feel quick and not cluttered.

Please include a short legal notice somewhere so users understand they’re responsible for what they download. If using a small Python helper for the YouTube part is the easiest route, that’s fine. Look up current docs online if you need to. The goal is a working app someone can actually install and try, not just a mockup.