anchor.diff:  
     # Enable sound.
     sound.enable = true;
  -  hardware.pulseaudio.enable = true;
  +  hardware.pulseaudio = {
  +    enable = true;
  +    package = pkgs.pulseaudioFull;
  +  };
   
     # Enable the X11 windowing system.
     services.xserver = {
  
positive.code:   };
  
    # Enable TLP to reduce energy consumption.
    services.tlp.enable = true;
  
    # Trim SSD periodically.
    services.fstrim = {
  
negative.code:     kde-gtk-config
      kitty
      libnotify
      linuxPackages.cpupower
      lm_sensors
      lshw
      maim
  