[mfro]

Some might claim a browser is an OS. Some do claim emacs is an OS. Tlon claims urbit is an OS. It’s a fairly fluid term nowadays.

[owenpalmer]

They're like an OS by analogy, but all of them require an actual OS to interface with the hardware. I don't think making that term fluid is a good idea. If we did, how would I refer to... "an actual OS"?

[mfro]

You’re definitely right there should be distinction. I think “baremetal OS” is the term some people would use.