Nice, I've been using this for a year or two now and it's become my main ereader server after a lot of time trying to land on one.

Will need to check if there's finally a way to sync read progress between different versions of the same library item (i.e. PDF & epub). One of my use cases is for storing magazines and being able to read the epub on my phone, but the full PDF on my tablet and have the progress sync properly is a personal holy grail