The key to organizing a hackathon is to start with “Why?”
As Simon Sinek says in "Start with Why", great leaders inspire action because what motivates them is the meaning of a situation, not what to do or how to do it.
Sinek explains how the Wright brothers, young farmers who never finished high school, became the first to build a machine that could fly, although their main rival for that claim had financial support from the U.S. War Department and was beloved by the New York Times. Why did the Wright brothers succeed?