unnamsa , And in my opinion, this is not a problem. More precisely, maybe a problem, but not for everyone. Does Google disable the APK installation?) And this is already 90% of what is needed. I still use cloud services. They work on MS1. In theory, they should work further.
I don’t know about Litres. It was still not enough to pay money for an electronic document. I never understood this. It's one thing, you go to the bookstore and buy a book. It’s a very tangible thing. With careful use, the eyelid can live.
A digital library? You buy access to a specific book. Not the book itself, but the ability to read, download. They cut off our great and mighty from the Internet or LiteRes will fall and where will your money be?
Well this is so, my personal thoughts, I do not impose!
I wrote this to the fact that is it not easier to install the OPDS World application, and put the directories of the same LitRes there, and even better, Flibusta? You will receive books for free and a normal library. And, most importantly, it all works regardless of the version of Android.
In general, as for me, it's like worrying that Google movies will suddenly stop working when it's easier to take and install HD Videobox! :)