The prototype reuses parts of SHARE [15], a mature system for making computational research results more accessible
and reproducible. The key technological components have therefore undergone various development cycles, which adds
to the robustness of MyPHRMachines technical architecture. On the one hand, MyPHRMachines excludes functionality
developed for the SHARE-specific use cases (e.g. generating BibTeX code for conveniently citing a VM image from a
research paper). On the other hand, MyPHRMachines required the development of new functionality specific to the PHR
context (e.g. access delegation to a VM session). We also redesigned the user interface of the Web portal to become
simpler and coherent to facilitate access by non-expert users