LCE-Hub/LCE-Emerald-Launcher — reverse-engineered prompt

Build me a lightweight desktop launcher for Minecraft Legacy Console Edition called Emerald. I want it to feel like the easiest way to get playing on PC, with support for Windows, macOS, and Linux.

The app should let people install popular community builds in one click, switch between versions, set a username and launch options, and launch the game from one clean home screen. Please include a workshop area for browsing community content like DLCs, textures, and skins. I also want custom skin importing and a skin viewer with live preview and layer support. Make sure it works well with keyboard and controller navigation.

It should also have Discord rich presence, profile and settings management, and support the free LCELive multiplayer service so players can connect without dealing with port forwarding. Keep the app fast and low on resource usage, and make the UI polished like a real launcher people would actually use every day.

If anything is unclear, check the current docs and project readme online and fill in the gaps sensibly.