In relation to

Engage with established technical communities at the Wikimedia Hackathon 2015 https://phabricator.wikimedia.org/T76325

Are there any specific developers of any related communities that you would like to invite to Lyon? We can talk about travel sponsorship if it's reasonable.

I have asked directly to the owners of the main areas of the event [1] in the related tasks. If you have good proposals in relation to other projects planned, please share them as well at https://phabricator.wikimedia.org/T76325

The sooner the better, since there is not much time left.

[1] https://www.mediawiki.org/wiki/Wikimedia_Hackathon_2015#Main_areas