email notifications work, iOS push notifications work too via the use of Boxcar (
https://boxcar.io/), which is an (iOS only) push notification app, so unfortunately no support for Android. I'd be happy to add it, if someone could give me a hint at what would be a nice/recognized/easy to configure service to send push notifications (
https://pushover.net/ ? something else?)
As for the guide, it's one of the next step I intend to do anyway as I realize lots of people probably miss out on the nice functionality of the tools because of the lack of documentation. I tried to have the config.yaml file as documented as possible (should be mostly self-explanatory), but of course it's not a substitute for real documentation. I'll get on it ASAP.