"Jekyll is a simple, blog-aware, static site generator. It takes a template directory containing raw text files in various formats, runs it through a converter (like Markdown) and our Liquid renderer, and spits out a complete, ready-to-publish static website suitable for serving with your favorite web server."

That said, it doesn't use Sinatra there either. It uses WEBrick which is in the Ruby standard library.

https://github.com/jekyll/jekyll/blob/master/Gemfile

https://github.com/jekyll/jekyll/blob/master/lib/jekyll/comm...