Great job and has a VPN built in. All the components used lend themselves to monitoring too - Linux with monitoring-plugins, MQTT (doddle to watch from afar) a

Great job and has a VPN built in. All the components used lend themselves to monitoring too - Linux with monitoring-plugins, MQTT (doddle to watch from afar) and so on. This also lends itself to remote monitoring and control of quite a few really big and expensive things that have serial ports. I like the look of this ... pulls wires out of a discarded Pi experiment ...