Example for hotplug.d and net

first of all LEDE is great stuff and thank y providing us this stuff :slight_smile:

I would like to show on a LCD (via USB) dhcp clients from the router each time there is a new one connected.
I am not expert and it seems to be a lack of examples using hotplug.d with net events.
How can I manage it by hotplug.d?

Any ideas would be appriciated, best regards,