anchor.diff:              pavucontrol
               playerctl
               rofi
  +            unstable.i3status-rust
               wmctrl
               xdg-user-dirs
  +            xkblayout-state
               xorg.xdpyinfo
               xorg.xkill
               xorg.xset
  
positive.code: { pkgs, ... }:
  
  {
    environment = {
  
negative.code:           package = pkgs.i3-gaps;
            # i3 dependencies.
            extraPackages = with pkgs; [
              compton-git
              dex
              dmenu
              dunst
              ffmpeg
              i3lock
              libnotify
              lm_sensors
              maim
  