I have an Arduino Yun connected to a Netgear POE switch. Had to buy a 12v=>USB injector to power it, and tapped it in to always-on 12v.
Automatically connects to my home wifi system (Unifi AP Pro) and gives access to CID, gateway, etc.
Depending on the power draw of this "Roadie" the USB sockets likely won't be enough. They're minimal and any decent nano requires several amps.