A Rust static site generator

I got nerd-sniped by Julian Schrittwieser's blog post on writing a static site generator in Rust - here it is! Most of the wins came from optimising images from JPG to WEBP then finally to AVIF, lazy-loading, and opt-in MathJax. Writing the site generator was fun apart from handling the edge cases in Markdown. Instead of using Jinja for template parsing, I directly wrote some Rust functions to return formatted HTML strings - giving compiler errors instead of runtime template-syntax mistakes from Jinja.

Overall, I'm pretty happy: the frontpage now loads in 78KB (with the pure HTML/CSS coming around 20KB!