I'm converting a Win32 app to Qt. It suddenly dawned on me -- I'm completely independent from Windows! Not only can I run on macOS, but I am also insulated from Universal Windows Platform. Qt has a UWP implementation. I can compile an app that satisfies UWP, without getting locked into WinRT.

This will be handy if Microsoft's new "Visual Studio Online" starts getting too confining. There's always GCC or Clang to fall back on.