Sure, for varying values of "works" and "different" and "no install step".
I'm going to go out on a limb here and state that a DOS executable from the 90's will run on more machines in the world than this demo, given "platforms" similarly to what this demo takes as a given.
You could say the same thing about anything related to web browsers. What's your point?
I'm going to go out on a limb here and state that a DOS executable from the 90's will run on more machines in the world than this demo
Right... except a user has to trust you enough to download and execute your DOS binary rather than just execute a javascript file in a browser sandbox.