Yeah, sorry, I got confused. Beeper mini does need servers to keep the notification service alive. And thus not crazy to ask for 2$ a month. Beeper cloud could indeed do without servers I guess, but I don’t know anything about that. I was just keeping up with the development of pypush (the python poc) and reverse engineering progress.

I don’t understand your point of “you have to log in with a google account”. I understood that was a requirement to check subscription status (and as such limit fraudulent apk’s).

But that seems to be a different story than “opensourcing this would mean a competitor could do it for free”.

You can already do this for free with pypush. And if you want to use something else then python you could build something based on it with any language as pypush is completely open source.

They do have to run servers in order to keep the service alive. If you want to run this stuff yourself on your own server that’s possible using PyPush. The reason they have to run those servers for you is to keep the notification service alive.

Those already exist! Pretty hefty price (compared to your usual ereader) but very much useable. Onyx Boox has a few models iirc