I have taken a look at the configuration of Smalltalkhub and started making some changes to make it work in Pharo 3. - added a new baseline, referring to smalltalkhub instead of squeaksource and ConfigurationOfSeaside3 with newer versions. Couldn’t save it to the repository though. - the same changes needed to be made to ConfigurationOfKaliningrad - ConfigurationOfSeasideRest is recent, but still refers to an older Seaside when I used 0.22 with Seaside 3.1.0 the image was able to load and get to the point where it expects to connect to mongodb. Remaining issues: - 2 versions of Mongo-BSON (30,31), Mongo-Core (26,35) and Mongo-Squeak (12,13) - 2 versions of Seaside-REST-Core (39, 52)