Philip Langer is a principal architect and general manager of EclipseSource (http://eclipsesource.com). He has many years of experience working with several modeling technologies of the Eclipse ecosystem and is a consultant to customers in this area. His current main focus is the development of domain-specific modeling and engineering tools, including graphical modeling, model diff/merge with Git, as well as web-based modeling tools. He is the project lead of Eclipse Graphical Language Server Platform (GLSP), as well as of EMF.cloud and a committer on EMF Compare, Sprotty, and Papyrus.