anchor.diff:    # services.xserver.desktopManager.plasma5.enable = true;
   
     # Define a user account. Don't forget to set a password with ‘passwd’.
  -  # users.extraUsers.guest = {
  +  # users.users.jane = {
     #   isNormalUser = true;
  -  #   uid = 1000;
  +  #   extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
     # };
   
  -  # This value determines the NixOS release with which your system is to be
  -  # compatible, in order to avoid breaking some software such as database
  -  # servers. You should change this only after NixOS release notes say you
  -  # should.
  +  # This value determines the NixOS release from which the default
  +  # settings for stateful data, like file locations and database versions
  +  # on your system were taken. It‘s perfectly fine and recommended to leave
  +  # this value at the release version of the first install of this system.
  +  # Before changing this value read the documentation for this option
  +  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
     system.stateVersion = "16.03"; # Did you read the comment?
   
   }
  
positive.code:   # networking.hostName = "nixos"; # Define your hostname.
    # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  
    # Select internationalisation properties.
    # i18n = {
    #   consoleFont = "Lat2-Terminus16";
    #   consoleKeyMap = "us";
    #   defaultLocale = "en_US.UTF-8";
    # };
  
    # Set your time zone.
    # time.timeZone = "Europe/Amsterdam";
  
    # List packages installed in system profile. To search by name, run:
    # $ nix-env -qaP | grep wget
    # environment.systemPackages = with pkgs; [
    #   wget vim
    # ];
  
    # Some programs need SUID wrappers, can be configured further or are
    # started in user sessions.
    # programs.bash.enableCompletion = true;
    # programs.mtr.enable = true;
    # programs.gnupg.agent = { enable = true; enableSSHSupport = true; };
  
    # List services that you want to enable:
  
  
negative.code:   # Enable CUPS to print documents.
    # services.printing.enable = true;
  
    # Enable sound.
    # sound.enable = true;
    # hardware.pulseaudio.enable = true;
  
    # Enable the X11 windowing system.
    # services.xserver.enable = true;
    # services.xserver.layout = "us";
  