The Technical University of Munich and the Université Grenoble Alpes organised a two-day workshop to foster alignment of the R&D direction between multiple EuroHPC projects including DEEP-SEA, ADMIRE, REGALE and TIME-X. The discussions led to a common understanding of Malleability use cases and their requirements, helped to establish a shared terminology and started to process of identifying elements of the project results that could be moved to a standardization process, like via the MPI Forum.