eb0050ca45
Without a group the gid will default to 65534 (2^16 - 2) which maps to "nogroup". IMO it makes more sense to explicitly set a valid group. Adding pkgs.sks to environment.systemPackages is not required (IIRC we want to avoid bloating environment.systemPackages). Instead it seems like a better idea to make the relevant binaries available to the user sks and enable useDefaultShell so that "su -l sks" can be used for manual interaction (that way the files will always have the correct owner).
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.