Comment by IshKebab

I agree. Also tables are quite weird, and 1-based indexing is definitely a mistake (sorry 1 fans but it is).

I think it just doesn't have much competition in the "embeddable languages" space unfortunately.

As another commenter said, JavaScript is probably the best choice in most cases today.

There's a list of options here but most of them are not really good options usually:

https://github.com/dbohdan/embedded-scripting-languages

E.g. Python would be a terrible choice in most cases. Awk? Some of them aren't even general purpose programming languages like Dhall.

If you narrow it down to embeddable-like-Lua there are hardly any.