{Using Overleaf for collaborative projects: First impressions and lessons learned} {Boris Veytsman} {For many years I have used a local version of \TeX\ Live and a version control system for his work. Recently I found myself in a position to work on papers with several teams having quite different degrees of knowledge of \TeX\ and version control. Overleaf was chosen as the method to organize the collaborations. In this presentation I discuss the impressions and the lessons learned in the process.}