When controlling a HomeKit device from the Apple Home app, there is no information exposed in Home Assistant related to the Apple user/account who made the changes.
In HAP-python, the HAPServerHandler class exposed client_uuid that could be used for this (pyhap/hap_handler.py#L155)
For now, I’d like the client_uuid to be added to the homekit_state_change event.
Later on, maybe, a new field could be added to the user profile to associate the HomeKit client_uuid with a Home Assistant user profile. Or the association could be done through yaml (associate the client_uuid with a person entity).
There is also a discussion on this topic here.
Thank you in advance!