...

New device is not directly connected so LLDP information is not seen, in this case peer hostnames list can be set as an empty list and all interfaces and BGP peers have to be configured manually? Also manual reconfig of peer devices might be needed at step 4g

Caveats:

It might not be able to fully ZTP devices that should go in the "evpn_peers" list (CORE devices), since it's probably not possible to populate "evpn_peers" list before the devices exist, and routing connectivity to the management loopback will not work until after the evpn_peers has been established.