Join or start WiFi

If the Raspberry Pi is able to access and log into a wireless network, then everything is good. It’s probably going to be better and more reliable to use that. And, if we don’t want it on a wireless network, we simply don’t give it the login details

However, if the Pi notices that the network has gone down, it should automatically start operating as it’s own access point. Ideally that should have a name derived from it’s hostname.

It should make this decision on boot, and also if it’s situation changes, such as the WLAN that it normally joins being down for five minutes.