This site is built on a platform called Grav. Grav is an open source flat-file CMS. It provides all the tools I needed while keeping the architecture simple. After reading the documentation I decided to create a custom theme for it.

Grav is built on PHP, but most of themeing happens in HTML, Twig and CSS. I saw this project as a chance to brush up on my web development skills as well as complete a task I've wanted to do for a while.