8 ms·It's been open source (on this URL) since ~May 2012...by mattpointblank 13y agoIt's been open source (on this URL) since ~May 2012...deleted 13y ago[deleted]aduth 13y agoThey've likely been committing to a private repository and only recently made the source publicly available on GitHub.kaelig 13y agoMatt works at the Guardian, and what he says is right: it's been an open source project since ~ May 2012.