That's why I mentioned IoT Core: it is, in fact, Windows without the Win32 userland. As such, it has no shell other than a web interface, and only runs UWP exec

That's why I mentioned IoT Core: it is, in fact, Windows without the Win32 userland. As such, it has no shell other than a web interface, and only runs UWP executables. If you've ever interacted with an Xbox One in dev-kit mode, that's basically the experience of using Windows IoT Core.