2dust/v2rayn ? reverse-engineered prompt

Build me a cross platform desktop app for Windows, Linux, and macOS that works like a simple proxy client for advanced users.

I want a clean GUI where people can add and manage server configs, switch between different nodes easily, and use it with supported cores like Xray and sing box. It should feel like a practical desktop tool, not something confusing, with a clear place to see the current connection, basic status, and settings. Please make it easy to download and run on the supported platforms, and include the usual desktop app polish like tray behavior and a straightforward settings screen.

If you need to check current docs or implementation details for the proxy cores, look them up online first. Keep the experience focused on reliability and ease of use, since this is meant to be the desktop version people use every day.