Xavier Shay is a DataMapper committer who has contributed to Ruby on Rails. He wrote the Enki blog platform, as well as other widely used libraries, including TufteGraph for JavaScript graphing and Kronic for date formatting and parsing. In 2010, he traveled the world running Ruby on Rails workshops titled "Your Database Is Your Friend." He regularly organizes and speaks at the Melbourne Ruby on Rails Meetup, and also blogs on personal development at TwoShay, and on more esoteric coding topics at Robot Has No Heart.