feat(script): add gb keymap support

script/screenon

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+#
+# Enable external screen (office-layout)
+
+set -euo pipefail
+
+if [ "$(uname -s)" != "Linux" ]; then
+  echo "non-Linux not supported"
+  exit 1
+fi
+
+xrandr --output DP-1 --mode 3440x1440 --left-of eDP-1

script/setkeys

@@ -21,6 +21,11 @@ case "$1" in
     exit 0
     ;;
 
+  "gb")
+    setxkbmap -model pc105 -layout gb,gb -variant mac, -option compose:rctrl
+    exit 0
+    ;;
+
   "")
     echo "argument required"
     exit 1