anchor.diff:        gnome3.eog
         gnome3.dconf
         i3lock-color
  +      compton
  +      dunst      
         feh
  +      polybar
         rofi
         arc-theme
         papirus-icon-theme
  
positive.code:       startAgent = true;
      };
    };
  
    # Enable sound.
    sound.enable = true;
    hardware.pulseaudio.enable = true;
  
negative.code:       python36
        dep
        ruby
  
        # desktop
        gnome3.gnome_terminal
  