leaveModeKeys = {
    "Insert" = "mode default";
    "Escape" = "mode default";
    "Return" = "mode default";
  };
  setVolume = "exec ${pactl} set-sink-volume $(${pactl} list short sinks | grep RUNNING | cut -f 1)";

    compose = {
      "t" = ''exec swaymsg [app_id="scratch_terminal"] scratchpad show; mode default;'';
      "f" = "fullscreen toggle; mode default;";
      "Insert" = "mode default";
      "Escape" = "mode default";
      "Return" = "mode default";

    disabled_mode = {
      # a mode for ignoring all keybindings until the compose mode keys are
      # repeated.
      "Shift+space" = "mode default";

    resize = {
      "h" = "resize shrink width 15 px";
      "j" = "resize grow height 15 px";
      "k" = "resize shrink height 15 px";
      "l" = "resize grow width 15 px";
      "Escape" = "mode default";
      "Return" = "mode default";
    };

    compose_mode = {
      # a mode for entering other modes, or inserting commands based on
      # sequential key presses
      # e.g. Shift+space -> k -> s  == bemenu_try_restart_systemd_user_services
      f = "fullscreen toggle; mode default;";
      k = "mode kill_mode";
      r = "mode resize_mode";
      t = ''exec swaymsg [app_id="scratch_terminal"] scratchpad show; mode default;'';
      v = "mode volume_mode";
      "Shift+space" = "mode disabled_mode";
    } // leaveModeKeys;
    kill_mode = {
      q = "exec swaymsg exit";
      r = "exec systemctl reboot -i";
      s = "exec bemenu_try_restart_systemd_user_services; mode default;";
      w = "kill; mode default;";
    } // leaveModeKeys;
    resize_mode = {
      "${cfg.up}" = "resize shrink width 15 px";
      "${cfg.down}" = "resize grow height 15 px";
      "${cfg.left}" = "resize shrink height 15 px";
      "${cfg.right}" = "resize grow width 15 px";
      "Shift+${cfg.up}" = "resize shrink width 45 px";
      "Shift+${cfg.down}" = "resize grow height 45 px";
      "Shift+${cfg.left}" = "resize shrink height 45 px";
      "Shift+${cfg.right}" = "resize grow width 45 px";
    } // leaveModeKeys;
    volume_mode = {
      "${cfg.up}" = "${setVolume} +1%";
      "Shift+${cfg.up}" = "${setVolume} +10%";
      "${cfg.down}" = "${setVolume} -1%";
      "Shift+${cfg.down}" = "${setVolume} -10%";
    } // leaveModeKeys;
    workspace_mode = {
      "0" = "workspace 0";
      "1" = "workspace 1";
      "2" = "workspace 2";
      "3" = "workspace 3";
      "4" = "workspace 4";
      "5" = "workspace 5";
      "6" = "workspace 6";
      "7" = "workspace 7";
      "8" = "workspace 8";
      "9" = "workspace 9";
      "${cfg.right}" = "workspace next";
      "${cfg.left}" = "workspace prev";
    } // leaveModeKeys;

    "XF86LaunchB" = "exec ${nwg-drawer}/bin/nwg-drawer";
    "XF86AudioPlay" = "exec ${playerctl} play-pause";
    "XF86AudioNext" = "exec ${playerctl} next";
    "XF86AudioPrev" = "exec ${playerctl} previous";
    "XF86AudioLowerVolume" = "exec ${pactl} set-sink-volume $(${pactl} list short sinks | grep RUNNING | cut -f 1) -5%";
    "XF86AudioRaiseVolume" = "exec ${pactl} set-sink-volume $(${pactl} list short sinks | grep RUNNING | cut -f 1) +5%";
    "XF86AudioMute" = "exec ${pactl} set-sink-volume $(${pactl} list short sinks | grep RUNNING | cut -f 1) 0%";
    "XF86MonBrightnessDown" = "exec ${brightnessctl} set 5%-";
    "XF86MonBrightnessUp" = "exec ${brightnessctl} set +5%";

    XF86LaunchB = "exec ${nwg-drawer}/bin/nwg-drawer";
    XF86AudioPlay = "exec ${playerctl} play-pause";
    XF86AudioNext = "exec ${playerctl} next";
    XF86AudioPrev = "exec ${playerctl} previous";
    XF86AudioLowerVolume = "${setVolume} -5%";
    XF86AudioRaiseVolume = "${setVolume} +5%";
    XF86AudioMute = "${setVolume} 0%";
    XF86MonBrightnessDown = "exec ${brightnessctl} set 5%-";
    XF86MonBrightnessUp = "exec ${brightnessctl} set +5%";

    "${modkey}+ctrl+l" = "workspace next";
    "${modkey}+ctrl+h" = "workspace prev";
    "${modkey}+ctrl+j" = "workspace back_and_forth";
    "${modkey}+ctrl+k" = "workspace back_and_forth";

    "${modkey}+ctrl+${cfg.right}" = "workspace next";
    "${modkey}+ctrl+${cfg.left}" = "workspace prev";
    "${modkey}+ctrl+${cfg.down}" = "workspace back_and_forth";
    "${modkey}+ctrl+${cfg.up}" = "workspace back_and_forth";

    "${modkey}+r" = "mode resize";
    "Insert" = "mode compose";

    "Shift+space" = "mode compose";

{ pkgs }: with pkgs; {

{ pkgs }: with pkgs; rec {

  list_systemd_services = writeShellApplication rec {
    name = "list_systemd_services";
    runtimeInputs = [ bemenu fzf gawk ];
    text = ''
      USER_OR_SYSTEM="user"
      FUZZY_FINDER="fzf --multi --exact --reverse --tiebreak=index"
      function echo_help () {
        echo "Usage: $0 [options]"
        echo Options:
        echo "  -h, --help      show this message"
        echo "  --user          passed to systemctl e.g. systemctl --user"
        echo "  --system        passed to systemctl e.g. systemctl --system"
        echo "  --fuzzy-finder  give an alternative fuzzy finder command"
        echo "                  defaults to: $FUZZY_FINDER"
        echo "                  bemenu is also supported. e.g."
        echo "                    ${name} --fuzzy-finder bemenu --ignorecase --center --margin 10 --list 10"
      }

      while [ $# -gt 0 ] && [ -n "$1" ]; do
        case "$1" in
          --help|-h)
            echo_help
            ;;
          --user|--system)
            USER_OR_SYSTEM="$1"
            ;;
          --fuzzy-finder)
            shift
            FUZZY_FINDER="$*"
            break
            ;;
          *)
            echo_help
            ;;
        esac
      if [ $# -gt 0 ]; then
         shift
      fi
      done
      systemctl "--$USER_OR_SYSTEM" list-unit-files --type=service --no-legend \
        | eval -- "$FUZZY_FINDER" \
        | awk '{print $1}'
    '';
  };
  bemenu_list_systemd_services = writeShellApplication {
    name = "bemenu_list_systemd_services";
    runtimeInputs = [ list_systemd_services ];
    text = "list_systemd_services --fuzzy-finder bemenu --ignorecase --center --margin 10 --list 10";
  };
  try_restart_systemd_user_services = writeShellApplication {
    name = "try_restart_systemd_user_services";
    runtimeInputs = [ list_systemd_services ];
    text = ''
      CHOICES="$(list_systemd_services "$@")"
      if [ -n "$CHOICES" ]; then
        systemctl --user try-restart "$CHOICES"
      fi
    '';
  };
  bemenu_try_restart_systemd_user_services = writeShellApplication {
    name = "bemenu_try_restart_systemd_user_services";
    runtimeInputs = [ try_restart_systemd_user_services ];
    text = "try_restart_systemd_user_services --fuzzy-finder bemenu --ignorecase --center --margin 10 --list 10";
  };