The package is now on mentors [1], the source code on Salsa [2]. Be warned, the source package is about 1.5GB big. This is mainly due to the large datasets. Without the datasets Geant4 is unusable (programs compile but don't start).
As I already mentioned, the package quality is rather bad, lintian takes ages to run on this an the output is super long. Building also takes at least 15min btw. There a still a couple of things that can be done, and I would love some help if someone is interested. Here's a incomplete list: * proper copyright review * taking a look at /usr/share/Geant4-10.6.2/tools.license and find out to what it applies * building the doxygen documentation * write man pages for geant4-config and geant4-env * get rid of the recursive symlink (/usr/lib/x86_64-linux-gnu/Geant4-10.6.2/Linux-g++) * install the Python module * use Debians CLHEP library, it is in Debian but it needs to be updated to >= 2.4.1.0 * take care of the fonts * in geant4-env, use the user's shell instead of bash [1] https://mentors.debian.net/package/geant4/ [2] https://salsa.debian.org/stephanlachnit/geant4