I’m running NixOS which has the largest repository - nixpkgs - by far.
Only issue is that I do not have sound in calls.
NixOS compiles the kernel from Purism source. Takes hours on Librem 5 but works.
One of the big advantages of NixOS is that one defines the required state of the OS in a configuration file. And one can either rollback to a previous configuration, or simply undo the changes in the configuration file and rebuild.
This makes it very easy to test other settings or software.
This. I’m struggling to figure out what configuration in PureOS makes the modem available as a sound source and sink. I’m currently shifting through the actuall files in the Librem 5 PureOS image with no clue what to look for.