Lua has petered out a bit but it has been used as a scripting and config language for a ton of games and commercial embedded. Not a hobby language, not typically a main implementation language but that doesn’t mean no commercial use. posix/bash shell isn’t a hobby language either, but unless you’re Tom Lord or something (RIP) you’re not doing the entire project in it.

Do realize that luajit for years was bankrolled by corporations.