On Saturday, 5th September 2015, there is a room allocated for Hackathons. If you'd like to participate, please add your name under the top title. If the topic you are interested in is not listed yet, add that title.
Help people contribute to CPAN either by getting them send their first pull-request patching a CPAN module, or by even taking over maintainership of a CPAN module. Some of the sub-topics:
If this happens, it will be a bit workshop-like hackathon.