[AceJohnny2]

Lua's niche is absolutely as an embedded extension language for C/C++ programs. It's core benefits is how tiny and yet expressive it is (and it looks like C if you squint.) I've seen it show up in a variety of projects in that role, for games or embedded testing environments.

I indeed don't see it having any benefit over Python or TCL in more sophisticated environments.

[abenedic]

The programming model for c ffi that lua uses is, I think, a little nicer.