David “DHH” Heinemeier Hansson (@dhh) is the creator of Ruby on Rails, founder and CTO at Basecamp (formerly 37Signals), and the best-selling co-author of Rework and Remote: Office Not Required. If that was not enough, fun fact, he went from not having a driver’s license at 25 to winning, at 34, the 24 Hours of Le Mans race, one of the most prestigious automobile races in the world. It is often called the “Grand Prix of endurance and efficiency.”