Actually, Lua exists all over the place, in all kinds of amazing applications - but because Lua is an embeddable VM, you mostly don't know about it that much.

Actually, Lua exists all over the place, in all kinds of amazing applications - but because Lua is an embeddable VM, you mostly don't know about it that much. Its not exposed because - when you use Lua professionally, you tend to bury it deep in the problem it solves for you.