I've been using katex-rs, a Rust rewrite, to implement LaTeX rendering for a Rust web app. It was easy enough to hook into pulldown_cmark, so that $ and $$ and

I've been using katex-rs, a Rust rewrite, to implement LaTeX rendering for a Rust web app. It was easy enough to hook into pulldown_cmark, so that $ and $$ and render a decent subset of LaTeX. Since pulldown_cmark is a proper Markdown parser, you listen for Event::InlineMath and Event::DisplayMath then call KaTeX directly. No regex or HTML escaping necessary. In my web app, this is all encapsulated into a single function that I can call within Tera templates. It's as SSR as it gets; no Node.js or client-side JavaScript necessary. The costliest asset is a minified stylesheet served through a CDN. (I do this out of laziness, and because the web app as-is needs nothing more than the standard Rust toolchain). https://github.com/katex-rs/katex-rs https://github.com/katex-rs/katex-rs