Possible emulation option for olde Windows applications, but installing stuff would probably be tricky, and Virtualbox would be a better option. But it depends. Chromebooks or other browser-only systems would be a target.
But anyway, ain't it cool?
Checking for bugs in Emscripten perhaps? A project as complex as an OS is probably good for finding edge-cases.
Doesn't this work by emulating the processor instruction set along with a few key drivers? The complexity of the OS itself wouldn't be directly hitting the emulator.
Fulfilling my lifeline dream of getting to run
rm -rf /
If you're on Windows, could you use it instead of a virtualized Linux? Maybe a work computer disabled the virtualization?