skimu5802-code/pipestream ? reverse-engineered prompt

Build me a modern Android media player for YouTube links that feels fast, simple, and privacy first.

I want users to be able to paste or share a video link and instantly choose to watch or download it. It should support background playback, audio only mode, picture in picture, and a small mini player so people can keep browsing while something plays. Add offline downloads with multiple video quality options and also audio only downloads, plus a place to pause, resume, and manage saved items.

It should also have search with suggestions, trending sections, channel pages, comments, chapter jumping, playback speed controls, repeat modes, brightness and volume gestures, and fullscreen viewing. Keep everything stored locally with no account required, no tracking, and a clean dark modern look. Use current Android best practices and look up any docs you need if something is unclear.