https://diymediaserver.com/post/how-proper-organization-helps-jellyfin-automatically-fetch-metadata-and-display-content-correctly/
Jellyfin Folder Structure & File Naming: Auto-Fetch Metadata | DiyMediaServer
Jun 4, 2026 - Correct Jellyfin folder structure and file naming conventions for movies, TV shows, and music: get it right and Jellyfin auto-fetches metadata, posters, and...
folder structurefetch metadatajellyfinfilenaming
https://man.archlinux.org/man/fetch-ebook-metadata.1.ms
fetch-ebook-metadata(1) — Arch manual pages
manual pagesfetchebookmetadataarch