{
  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
      wineWowPackages.stable # 32-bit and 64-bit wine
      winetricks
    ];
  };
  users.groups.pob = {};

  security.sudo.extraConfig = ''
    julian ALL=(pob) NOPASSWD: ALL
  '';
}