Thinking out this post....

My thoughts are that you really don't need anything fancy for this a cheapo, even very cheapo tablet will do. If you have the real books in PDF form they wont take any room. You could also store pages as pictures in a folder - if its one page. A single pic can be two pages or more, if you can see the dots. Bigger screen?
Apple computers seem to be better served for this sort of thing, but I would find the Ipad a little small. http://onsongapp.com/

Here is something for PCs http://airturn.com/at-104-for-windows-pc/products/airturn/usb-airturn/at-104-for-mac-and-pc


Win 11 64, Asus Rog Strix z390 mobo, 64 gig RAM, 8700k