Structure the installers explicitly with clearly defined segments

install/config/fix-fkeys.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+if [[ ! -f /etc/modprobe.d/hid_apple.conf ]]; then
+  echo "options hid_apple fnmode=2" | sudo tee /etc/modprobe.d/hid_apple.conf
+
+  # Rely on install/plymouth.sh to do the rebuild
+  # sudo mkinitcpio -P
+fi