Toggle Function/Media keys on macOS

toggle_functionkeys.sh

#!/bin/bash
#
# Toggles the state of the "Use F1, F2, etc. keys as standard function keys" option
# in the System Keyboard Shortcuts settings in Ventura & Sonoma

if [[ $(defaults read -g 'com.apple.keyboard.fnState') == '0' ]]
    then 
        defaults write -g 'com.apple.keyboard.fnState' -boolean true
    else defaults write -g 'com.apple.keyboard.fnState' -boolean false
fi

/System/Library/PrivateFrameworks/SystemAdministration.framework/Resources/activateSettings -u;