Plex + TorBox — unlimited library with Radarr, Sonarr, and Decypharr...so I thought
Most guides for running Plex with TorBox start with a FUSE mount — rclone's WebDAV pointed at your TorBox account, mounted as a local drive. TorBox even ships an official Docker tool for this: TorBox Media Center. For a simple, click-to-play setup it should work. Add the arr stack — Radarr, Sonarr, Prowlarr — and it hits two problems no amount of configuration can fix.
Plex + FUSE is already TorBox's second choice. Plex doesn't support .strm files, so unlike Jellyfin or Emby you can't use the lighter streaming-URL method — you're locked onto FUSE. TorBox's own documentation describes FUSE as a fallback, noting it carries "higher CPU and memory (filesystem emulation + caching)." In practice: SYS_ADMIN Docker privileges required, broken state on container restarts, won't run on Windows or kernels without FUSE support. The official TorBox Media Center tool currently has 25 open GitHub issues with no code changes since January 2026.
The deeper problem is what Plex does to TorBox's 30-day cache. TorBox expires files not accessed for 30 days — but Plex continuously probes every library item for codec info, resolution, runtime, and chapter markers. Each probe counts as access and resets the expiry timer. With even a modest arr-managed library, Plex's background scanning means nothing ever expires. Your TorBox account silently accumulates everything Radarr and Sonarr have ever grabbed, which isn't how TorBox's cache is designed to work.And torbox api limits, you can only add 60 items per hour. So make sure you configure that limit in decypharr (1 per minute). And if you're moving from RD, that means a lot of patience...we'll see in the long run how it works out.
extra services like CatBox. It virtualizes your entire library — Plex gets full metadata for every item — without touching your TorBox account until you actually press play. Probes are answered from a pool of crowdsourced data shared across all CatBox tenants. Only playback adds an item to TorBox, and it's removed when the stream ends. Unlimited library size. Clean TorBox account. No compromises on either side. This unfortunately has a monthly fee.
Conclusion is plex for now remans as a secondary backup you can still make requests through https://seerr.cjoa.net that should process through plex. Media will only remain for a short time. In the long term if no other solution is found I will shut the PLEX services down.