CarrotRub/Fit-Launcher — reverse-engineered prompt

Build me a fast, modern desktop game launcher for FitGirl repacks. I want it to feel simple for regular users, open quickly, and look polished, with a clean home screen, game browsing, game detail pages, download options, and an easy way to launch or manage installed games.

It should support fast downloads using torrents or direct download links, preferably through aria2c, and show clear progress, speed, status, and errors in a friendly way. Please include a theme system so users can switch themes and eventually make their own custom themes. The app should be built as a desktop app with Tauri, Rust, SolidJS, and TypeScript, and should be set up so it can run in development and build installers.

Also add practical touches like settings, download folder selection, basic search, and a nice splash screen. Keep the design sleek and gaming focused. Look up current docs online if you need to.