{
  pkgs,
  config,
  ...
}:
let
  ifTheyExist = groups: builtins.filter (group: builtins.hasAttr group config.users.groups) groups;
in
{
  users.mutableUsers = false;
  users.users.pob = {
    description = "A helper user to use another profile for some applications";
    group = "pob";
    isNormalUser = true;
    shell = pkgs.fish;
    extraGroups = ifTheyExist [
      "networkmanager"
    ];
    packages = with pkgs; [
      firefox
      wine
    ];
  };
  users.groups.pob = { };
}