Interesting idea though a Brief look at the site, hackaday and github does not show the schematic or source code.

Lora is interesting for projects such as this I did a similar data capture project which I moved from WiFi to lora (http://rodyne.com/?p=844) and achieved a massive increase in range and battery life thats why I was keen to peek at the innards..

What’s the avantage of a pager compared to a smartphone in 2018? I don’t see any. I’d rather just use my phone and email/Slack/Telegram.