Within the project we will organize workshops/seminars in Norway, in France and Germany within open-source software development for subsurface flow and applications. Workshops are to be organized twice a year, where one meeting is the annual meeting with the user community that currently is organized for each project separately. Within INSPIRE we will organize these meetings jointly between the communities of OPM, DUNE, DuMu x , and ComPASS to increase visibility and collaboration.