anchor.diff:    #   uid = 1000;
     # };
   
  -  # The NixOS release to be compatible with for stateful data such as databases.
  -  system.stateVersion = "16.03";
  +  # 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.
  +  system.stateVersion = "16.03"; # Did you read the comment?
   
   }
  
positive.code:   # services.xserver.layout = "us";
    # services.xserver.xkbOptions = "eurosign:e";
  
    # Enable the KDE Desktop Environment.
    # services.xserver.displayManager.sddm.enable = true;
    # services.xserver.desktopManager.plasma5.enable = true;
  
negative.code:   # 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:
  
  