File storage

plappa will handle basically any folder structure that Jellyfin can read. It will only read audio files, so you can also use mixed libraries for books/audiobooks.

For development and testing, I always use the most common organization scheme for books outlined by Jellyfin.

The general idea is to create a folder per author and, within that, one per book (for multi part books):

Author
├── Book1.m4b
├── Book2.m4b
└── Book3
    ├── Chapter1.mp3
    ├── Chapter2.mp3
    └── Chapter3.mp3