Series folders are a big one for me but just having organisation is quite nice, I’ve had some issues with my e-readers sometimes where the database gets corrupted but in calibre I can backup the database.
I recently updated my kobo devices and saw that there’s a Google drive option now for storing books elsewhere, for the time being I’ve just been using calibre and moving files over myself, would there be any concerns to host non drm ebooks from mam on a Google drive if I’m only sharing it with like one person.
Cheers^^
Ditto for Obsidian ^^