Last time I posted a full writeup on my lab (The before before this) there was a lot of questions on what exactly I was running at home. So here is a full writeup on everything I am running, and how you can run it too
Query: Have you tried out Kavita yet? It's what I have started for self hosting my books/PDFs/etc, and there's a lot of free open license books out there that you can bulk load onto it and have a whole library at your fingertips.
I believe there's a way to integrate it with kindle as well?