Eleventy Nested Pagination
Eleventy (the cool static site generator) has a great feature called Pagination which allows you to iterate over a list of things in chunks and produce multiple output files. As I was migrating this very site over to Eleventy, I found I needed to perform a double pagination. This is when, during paginating over a list of blog post years, I found I wanted to also paginate again over the posts in those years, so I could have at most 20 posts on a single list page.