Cool! I do save by author sorting (and language sorting) and then manually drag them in my home folder so I have a backup on my SSD. but this is way easier :)

You can set a specific folder as the “home” folder on koreader by long pressing the folder where your files are located. I put all my epubs in there with moisaic viewing style.

This is exactly what I wanted to comment.

Love y’all, but on bluesky gen X has been behaving like boomers more and more often. Maybe it has to do with hitting a certain age and becoming “get of my lawn”?