ipam.device_sync mirrors commissioned machines as dcim devices: serial, device type and role (created when missing), status, interfaces with MAC objects, Rollcall's addresses assigned to them and the management address as primary IP. Site, location and rack are matched by name from the machine's location and never created. Ownership by tag and rollcall_machine; a foreign device of the same name is a conflict. lab/netbox/install.sh sets up a NetBox on the lab segment so the drivers are tested without writing to a real NetBox. Refs #10 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>