ayufan/steam-deck-tools — reverse-engineered prompt

Build me a Windows utility suite for people running Windows on a Steam Deck. I want it to feel like a small set of tray apps that make the device easier to use without SteamOS.

It should let the user control the fan, show an in game performance overlay with FPS and system stats, adjust power settings like TDP and refresh rate, and make the Steam Deck controls work properly in Windows games including Game Pass. Include sensible defaults and controller shortcuts so it’s usable right away.

Please also add an updater or update check, basic troubleshooting friendly messages, and clear warnings that this can affect system stability, may trigger antivirus or anti cheat issues, and is unofficial. Keep the UI simple and practical, more like a tool than a flashy app.

Use C# for Windows, and look up current docs online if you need to.