Oscar

deleted by creator

C is a pretty simple language and relatively easy to learn. But it’s a lot harder to be proficient with.

Can’t they just use JSDoc?

By the same argument, wouldn’t GPL and other copyleft licenses be considered non-free as well since you are not free to do whatever you want with the source? For example, incorporating it into a proprietary project, refusing to provide the source to users upon request, or not disclosing attribution, etc. The latter would even go against the terms of permissive licenses.

Clearly defining what free, and by extension FOSS, means is very relevant.

It seems that no lua is packaged with pandoc-cli (By looking at the package contents of https://archlinux.org/packages/extra/x86_64/pandoc-cli/)

So if I were you I would first try the AUR and see if there’s any package there that does.