For video content, iirc, it’s possible to browse the files just like you’re asking for by creating a “Mixed film and programmes” library. The description of the type, when creating it, mentions: “Content will be displayed as plain folders.” However, I don’t know if that would also work for audiodramas? Possibly if you disable auto-fetching of metadata and provide it all yourself — either by creating .nfo-files and supplying correctly named images within the folder structure, or through the jellyfin app/webui.
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For video content, iirc, it’s possible to browse the files just like you’re asking for by creating a “Mixed film and programmes” library. The description of the type, when creating it, mentions: “Content will be displayed as plain folders.” However, I don’t know if that would also work for audiodramas? Possibly if you disable auto-fetching of metadata and provide it all yourself — either by creating .nfo-files and supplying correctly named images within the folder structure, or through the jellyfin app/webui.