After graduating from Sciences Po in Paris with a master in urban affairs (Master "Stratégies Territoriales et Urbaines" de l'Ecole Urbaine de Sciences Po), I've recently moved to Nantes to work for a regional community which gathers several local authorities, in Nantes-Saint-Nazaire metropolitan area. We are helping cities developing urban projects and innovations in the fields of transport, mobility, environment and attractivity. I've been interested in collaborative economy for a couple of years, and I'm now trying to find out which impact collaborative practices can have on cities and territories. In 2014-2015, I joinded the OS Community in Berlin and I took part in my first collaborative start-up experience, joining SofaConcerts.org, a platform for the organization of house concerts. We worked on the translation of the platform into French and on its development in France and more generally in Europe.