Well, kind of.
It’s a Docker containers running Previous, that you connect to with noVNC in your browser. So it’s a legacy system thing on demand! I had tried to do something like this ages ago with SIMH on demand, but I broke it all when I installed apache on OS/2 to make the bbs url self hosting.
The mouse control is insanely offtrack, but this does present an interesting possibility of bringing back an OS museum / zoo thing.
Also worth mentioning that they do offer MacOS!