SmashManiac originally ran the site but recently converted it into an open source project. Here's the announcement

You can view the new open source version of the site here

It's still early in the transition but I've converted it into a Jekyll build based on yaml data. Unfortunately I've been mostly working alone, we'd love some more contributors! If you know any of: HTML, CSS, JavaScript, Jekyll, or Liquid templates then check out the Github and maybe submit some pull requests to help us out

We'd like to keep the project simple, but here's our issues list for ideas