RockinChaos/Shiru ? reverse-engineered prompt

Build me a fast personal anime library app where I can keep track of my collection, open my own video files, and watch episodes right away without transcoding. I want it to work on desktop and Android, with a clean modern interface, offline access, and support for local playback, subtitles, multiple audio tracks, and simple episode progress tracking.

It should also connect to AniList and MyAnimeList so I can manage my watch list, mark episodes as watched, and see what I have left to finish. I want a nice home screen with continue watching, my lists, and anime details, plus real time release updates and notifications for new episodes when possible.

If you need to look up current docs or best practices online, do that. Focus on making it feel polished, fast, and easy to use, with the main screens and core playback working first.