David Heinemeier Hansson is a Danish programmer and racing driver. As a programmer, he is the creator of the popular Ruby on Rails web development framework and the Instiki wiki.[2] He is also a partner at the web-based software development firm 37signals. Hansson co-wrote Agile Web Development with Rails with Dave Thomas in 2005 as part of The Facets of Ruby Series. He also co-wrote Getting Real,
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