In this year's edition I was responsible for the website's development and, with the event organizing team, decided to make something different, where the users could not just have access to information about the event, but also fun! (:
In order to achieve this result, we developed a first page using Node.js, and in it everybody who were online could draw together, sharing and interfering in each other drawings simultaneously. The other part, the content, is shown in front of the drawing area, in a way that all the navigation takes place on top of the drawings that are being made by other people.
The code for the drawing area can be found on a Github repo I created: https://github.com/minutti/InterDesigners