ESPHome Ethernet connectivity feature request

Could you explane me more because i am not expert…
But is any chance to create it without HA ?

on display i try this but no compile and get inor that eth has no get_mac_address
it.printf(124, 37, id(dejaVuSmall), TextAlign::BASELINE_RIGHT ,"%s", id(eth).get_mac_address().str().c_str());