During the pre-conference days, there were two days of hackathon where 160 people worked on the software that we use in our Wikimedia projects. Tomorrow, Saturday, from 18:00-19:00, the hackathon showcase will be held in the school's main hall (venue 52). During this showcase, many participants will present their hackathon accomplishments in brief presentations. This session is fast paced, and chock full of useful and understandable information. Developers: please register at https://etherpad.wikimedia.org/p/T132719 to participate in the showcase. Because of an unfortunate crash of the Etherpad database server, we think that three submission may have gotten lost, so please double check your entry. We hope to see you there! Rachel Farrand Siebrand Mazeland