{
  config,
  pkgs,
  ...
}: {
  config.services.skhd = {
    enable = true;
    # package = pkgs.skhd;
    skhdConfig = ''
      #############################################################
      # Generated by darwin-rebuild from nixpkgs.darwin.skhdrc in
      # ~/dotfiles
      # For skhd info see: https://github.com/koekeishiya/skhd
      #############################################################

      # -- restart yabai --
      cmd + alt + ctrl - y : launchctl kickstart -k "gui/''${UID}/org.nixos.yabai"

      # -- restart skhd --
      cmd + alt + ctrl - s : skhd -r

      ###################
      # WINDOW MANAGEMENT
      ###################
      # -- focusing within the current "space" --
      hyper - h : yabai -m window --focus west
      hyper - j : yabai -m window --focus south
      hyper - k : yabai -m window --focus north
      hyper - l : yabai -m window --focus east

      # -- rearraging within the current "space" --
      cmd + alt - h : yabai -m window --warp west
      cmd + alt - j : yabai -m window --warp south
      cmd + alt - k : yabai -m window --warp north
      cmd + alt - l : yabai -m window --warp east

      cmd + alt - u : yabai -m window --swap west
      cmd + alt - i : yabai -m window --swap south
      cmd + alt - o : yabai -m window --swap north
      cmd + alt - p : yabai -m window --swap east

      cmd + alt - r : yabai -m space --mirror y-axis
      cmd + alt + shift - r : yabai -m space --rotate 90

      # -- change split type of focused window --
      cmd + alt - e : yabai -m window --toggle split

      # -- resizing --
      cmd + alt - 0 : yabai -m space --balance
      cmd + alt - f : yabai -m window --toggle zoom-fullscreen
      cmd + alt + shift - f  : yabai -m window --toggle zoom-parent
      hyper - 0x18  : yabai -m window --toggle zoom-parent

      # uses brackets left: [ right: ]
      cmd + alt - 0x21 : yabai -m window --resize left:-20:0
      cmd + alt + shift - 0x21 : yabai -m window --resize left:20:0
      cmd + alt - 0x1E : yabai -m window --resize right:20:0
      cmd + alt + shift - 0x1E : yabai -m window --resize right:-20:0
      # uses + and -
      cmd + alt - 0x1B : yabai -m window --resize top:0:20
      cmd + alt +shift - 0x1B : yabai -m window --resize top:0:-20
      cmd + alt - 0x18 : yabai -m window --resize bottom:0:20
      cmd + alt + shift - 0x18 : yabai -m window --resize bottom:0:-20


      # -- floating windows --
      cmd + alt + ctrl - f : yabai -m window --toggle float; \
                            yabai -m window --grid 4:4:1:1:2:2

      # floating window to left half & right half
      cmd + alt - left : yabai -m window --grid 1:2:0:0:1:1
      cmd + alt - right : yabai -m window --grid 1:2:1:0:1:1

      # -- moving to another "space" on the current display --
      cmd + alt - 1 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 1; yabai -m window --focus $wid
      cmd + alt - 2 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 2; yabai -m window --focus $wid
      cmd + alt - 3 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 3; yabai -m window --focus $wid
      cmd + alt - 4 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 4; yabai -m window --focus $wid
      cmd + alt - 5 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 5; yabai -m window --focus $wid
      cmd + alt - 6 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 6; yabai -m window --focus $wid
      cmd + alt - 7 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 7; yabai -m window --focus $wid
      cmd + alt - 8 : wid=$($DOTFILES/zsh/functions/yabai_window_id.zsh) yabai -m window --space 8; yabai -m window --focus $wid

      # -- moving to another to another display --
      cmd + ctrl - 1 : yabai -m window --display 1; yabai -m display --focus 1
      cmd + ctrl - 2 : yabai -m window --display 2; yabai -m display --focus 2
      cmd + ctrl - 3 : yabai -m window --display 3; yabai -m display --focus 3

      # -- focus another display --
      hyper - 1 : yabai -m display --focus 1
      hyper - 2 : yabai -m display --focus 2
      hyper - 3 : yabai -m display --focus 3
      hyper - b : yabai -m display --focus prev || yabai -m display --focus recent
      hyper - n : yabai -m display --focus next || yabai -m display --focus recent

      # -- stack windows onto each other
      shift + cmd - b : yabai -m window --focus stack.prev || yabai -m window --focus stack.last
      shift + cmd - n : yabai -m window --focus stack.next || yabai -m window --focus stack.first
      shift + cmd - h : yabai -m window --stack west
      shift + cmd - j : yabai -m window --stack south
      shift + cmd - k : yabai -m window --stack north
      shift + cmd - l : yabai -m window --stack east
    '';
  };
}