This site is set in DIN Pro from Parachute and Inconsolata from Google. The site uses Markdown as the markup language for the posts, and uses Typeset.js. The content management system for the site is built with Node.js using Express and Jade, now Pug. That all runs on an Ubuntu server from Digital Ocean, somewhere in the cloud.
This is the second version of the Identity content management system, with a simplified backend and some additional features on the front end, including HiDPI display support, among other niceties. The front-end stylesheet was also updated to take advantage of some new features since this site first went online in 2012.