For the books I love and want to read over and over, physical. For the books I want to read once and maybe reference from time to time, digital all the way. My e-reader makes digital books a breeze to read, and I'm actually at the point where it's 5GB of storage isn't enough for my library.
mrwiggles
https://bennycheung.github.io/ask-a-book-questions-with-langchain-openai
https://github.com/langchain-ai/langchain
Essentially, you cut the pdf/text file up into chunks, process it to embeddings, then ask the AI questions and it responds with the relevant segments of the book
I think your best bet in this case is google drive. Most people have a google account, and if they don't, I believe it's possible to set it up in a way that it will let them upload anyway. I don't think you're getting out of the account requirement, outside of you setting up an anonymous ftp server in a vps or something.
Except, what it produces is very similar or identical to some copyrighted works, licensed under the LGPL, like in this case. You don't have to copy a whole program to plagiarize someone
And this is why you password protect your ssh keys