That's amazing - do you have any info on the underlying implementation?
It's a fully emulated PC: CPU, memory, hard drive, … The CPU especially took me very long to get right with all the details to run Windows 98. The code is here: https://github.com/copy/v86
This is the most impressive part! Well done! So in theory, we can run anything that a real PC can run, albeit a Win98 speced PC. Any takers to get the next generation in the Windows series to run on it. WinXP? I think.
PS: Just came across the HN discussion around the said x86 emulator.