I was in the hackathon during 2016 IUG conference in San Francisco. It was a great experience to develop a small app in such a short time of period. It was a little bit stressful because I had to participate in conference sessions while finishing my project. I created a Patron Dashboard using Sierra REST API and Sierra SQL DNA. Particularly, my focus was on data visualization using D3. It was cool to demo an interactive pie chart. Expect doing more API projects... Happy Hack!
You can read an event recap article, IUG 2016 Hackathon Recap.