Hi, just a note to say that the Phabricator project for the Wikimedia Hackathon 2015 (Lyon, 23-25 May) has been created.
https://phabricator.wikimedia.org/tag/wikimedia-hackathon-2015/
You are invited to ask questions, provide feedback, and get involved.
Important note: even if we are just bootstrapping the project there, the volunteers at Wikimedia France have done a ton of work already (i.e. the venue and main services are secured).