On the 6th and 7th December 2014, I conducted a 2-day hackathon on the topic of Interactive Computer-Generated Audiovisuals at EAVI, Goldsmiths, University of London. The participants developed tools for audiovisual performance, taking into account results from a previous workshop. The results are available here: github.com/avuis/. The hackathon is part of the 2-year Enabling AVUIs research project being conducted at Goldsmiths. Conducted in collaboration with Video Hackspace (http://www.videohackspace.com). There was a follow-up hackday in January, and the projects were presented as public performance at Goldsmiths on the 6th February 2015.