My Litmus test for package managers is the ability to install gnome, switch it out for kde and back. (Or starting with kde). One should be able to do that witho

My Litmus test for package managers is the ability to install gnome, switch it out for kde and back. (Or starting with kde). One should be able to do that without accumulating garbage (packages that are no longer used, config files, etc), but so far only NixOS passes it (and I didn’t try but assume Guix).