All in a day’s work. Imagine building a house in just five hours, and I’m not talking about a Lego mansion, I’m talking about a real structure that you can live in. Dutch designer Pieter Stoutjesdijk has created an emergency shelter that can be snapped together in just five hours, reports Fast Company. Stoutjesdijk’s open source design is meant to bring shelter to people who lose their homes in a disaster. And while we’re on the topic of open source construction, check out this interview with WikiHouse co-founder Alastair Parvin, who shares details on where the open source construction set is heading.