Howdy self-hosters!
I’ve got a huge pile of eBooks flying around here: poetry, scientific literature, magazines, comics, teaching materials, RPG rule books - it’s a wildly mixed bag. I’m still looking for a self-hosted solution to make it more accessible and get an overview of what I actually have. (Calibre looks promising!)
My question here is not about software, though, but about organisation at the filesystem level: what folder and file name structure have you established for your eBooks? Do you just dump everything into one single folder and let the software do the rest? Do you create sections by genre (“Crime”, “Fantasy”, “Young adult”, like the libraries do it) or application (job-related, hobby-related, cooking, …)? Does it matter at all?


Forget about folders. Use a good metadata schema.
Feel free to elaborate. ;) I don’t mind ditching folders. The question is: how do I get at said metadata with the least amount of manual effort, how do I make sure that it’s accurate (sifting through thousands of files is not fun), and how is the metadata stored - particularly so that does not lock me into one application that can only understand its own metadata scheme, and once it dies or I want to switch to a different one, I lose all the work I’ve put into curating my collection. That’s why I was considering folders as an option: they are a software-agnostic way of organising my library.