I'm always looking for alternatives to AutoHotkey and small C WINAPI programs I've written. Rust doesn't quite cut it, even with Microsoft's windows-rs library using the WinAPI functions is worse than it was with plain C. This is because you have to hunt the right libraries and features to import, it's surprisingly time-consuming.
Excited to look how LuaRT exposes WinAPI, my ideal would be one global namespace where you can easily auto-import all the normal functions. Microsoft has made it somewhat easy for library authors to generate the externs with their relatively new Win32metadata package: https://github.com/microsoft/win32metadata