Found some maybe interesting still developed. I can not help further (no packaging experience or whatever).
calculix-ccx-test calculix-ccx-doc fastjet (phys) https://svn.hepforge.org/fastjetsvn/contrib/trunk/ irstlm https://github.com/irstlm-team/irstlm clhep (phys) https://gitlab.cern.ch/CLHEP/CLHEP cliquer (math) https://github.com/dimpase/autocliquer nfft (math) https://github.com/NFFT/nfft siscone (phys) https://phab.hepforge.org/source/sisconesvn/ gone slicer (guess is the same) (med) https://github.com/Slicer/Slicer worldwind (maybe free now) (astro) https://github.com/NASAWorldWind/WorldWindJava scilab-metanet (math) https://forge.scilab.org/index.php/p/metanet/source/tree/master/ feel++ https://github.com/feelpp/feelpp mmtk (bio) https://github.com/khinsen/mmtk root-system (phys) https://github.com/root-project/root aster https://sourceforge.net/p/codeaster/src/ci/default/tree/ elmerfem elmer-doc https://github.com/ElmerCSC/elmerfem
