[ihumanable]

Yea, I'd probably of ended up using cmark too.

It is nice though to learn about NIFs and rustler, there are a lot of high quality crates out there that you can wrap and take advantage of from elixir code once you get comfortable with doing it.

So possibly a sub-optimal approach, but the author indicates in another comment they had customized the rust version and wanted to be able to share code, which seems legit. Always good to stock up that toolbox though with more neat stuff, and rustler NIFs are seriously neat.