Here is their POC in Python:https://github.com/JJTech0130/pypush
And their article explaining it: https://blog.beeper.com/p/how-beeper-mini-works
This is a most excellent place for technology news and articles.
Here is their POC in Python:https://github.com/JJTech0130/pypush
And their article explaining it: https://blog.beeper.com/p/how-beeper-mini-works