anchor.diff:  {
     imports = [
       # Include the results of the hardware scan.
  -    ./hardware-configuration.nix
  +    /etc/nixos/hardware-configuration.nix
     ];
   
     boot.initrd.luks.devices = [{
  -    name = "lvm";
  +    name   = "lvm";
       device = "/dev/sda2";
       preLVM = true;
     }];
  
positive.code:   #   consoleKeyMap = "us";
    #   defaultLocale = "en_US.UTF-8";
    # };
  
    # List packages installed in system profile. To search by name, run:
    environment.systemPackages = with pkgs; [
    ];
  
    # Sound
    hardware.pulseaudio.enable = true;
  
negative.code:   # services.printing.enable = true;
  
    services.acpid.enable = true;
    services.avahi = {
      enable  = true;
      nssmdns = true;
    };
    services.locate.enable  = true;
    services.upower.enable  = true;
    services.gnome3.gvfs.enable  = true;
    services.udisks2.enable = true;
  
    environment = {
      variables = {
        GTK_DATA_PREFIX = "${config.system.path}";
      };
  
      pathsToLink = [
        "/share/xfce4"
        "/share/themes"
        "/share/mime"
        "/share/icons"
        "/share/desktop-directories"
      ];
  
      systemPackages = with pkgs; [
        (ruby.override { cursesSupport = true; })
      ];
    };
  
  
    services.redshift = {
      enable = true;
  
      latitude  = "48";
      longitude = "-122";
  
      temperature = {
        night = 4551;
        day   = 5200;
      };
    };
  
    # X and more!
    services.xserver = {
      enable  = true;
      autorun = true;
      config = ''
        Section "Monitor"
  