Automated no. Maybe partially, but fairly easy to get up and running with the added bonus of being as close to “legal” as it gets. Read until the end for a more subversive option.
Libby. I cannot recommend a public library card and Libby enough. For avid readers you can probably just stop there. The loan times vary location to location, but if you are someone that reads a good amount each day you can probably get through whatever book before you have to return it.
Here’s the secret sauce tho. You can specify you’d like to read a book from Libby in a different app. This spits out an Adobe Digital Editions DRM locked book. Once opened in ADE the file is now a “normal” .epup but still time locked with DRM. Enter calibre and it’s plug-in support. My current setup is using an older version and a no longer maintained plugin, but that’s because I’m lazy and haven’t updated things. There is now a new maintainer of the project. noDRM’s DeDRM tool seems like the current standard and includes all necessary info I believe. Once you have the plug-in installed it’s simply a matter of dropping the .epub from ADE into your calibre library and then you have it forever.
As far as making this easy for you family, I would say direct them to Libby for general use, and then if they longer to read something resort to more drastic measures.
Kind of a grey area as I simply think of it as “extending” my loan while still being polite to the people waiting for the book behind me. I mean it’s not actually a grey area, like it’s not technically allowed, but I feel it’s very much in the spirit of public libraries and free access.
As far as automation goes I’m fairly confident I could write a script to get the download from Libby as I can post all the necessary requests from a command line if I want. The problem comes up with Adobe Digital Editions. This does not have any sort of command line interface as far as I know, and unlike calibre a file must be specifically imported through the GUI rather than simply dropped into a folder.
The true cheat code is z-lib, which when set up fully can be interfaced with a telegram bot that can be customized and automated all you want. In my opinion once the telegram bot is set up it’s easy enough for anyone. You put a book you’re looking for into the message box, the bot sends you search results back, tap the file you want and it sends it to you right in the chat. I use it all the time when book recommendations come up in conversation. I’ll search for it on my phone, tap the right one and have the .epub waiting for me on my ereader.
I’ve also got a system for ripping audiobooks from Libby, but it’s way more complicated and marginally more capable of being automated.