[Unit]
Description=firewalld reload hook - run a hook script on firewalld reload
Wants=dbus-broker.service
After=dbus-broker.service

[Service]
Type=simple
ExecStart=/bin/bash -c '/bin/busctl monitor --system --json=short --match "interface=org.fedoraproject.FirewallD1,member=Reloaded" | while read -r line ; do [ -x /usr/local/sbin/firewalld-reload-hook ] && /usr/local/sbin/firewalld-reload-hook ; done'

[Install]
WantedBy=multi-user.target