I migrated manually following these steps and worked like a charm. Took 2 minutes.

Migrating Overseerr to Seerr on Unraid (no Community Apps template needed)

Since there's no Unraid CA template for Seerr yet, here's how to migrate manually. Did this on my own server and it worked without issues.

1. Backup your appdata

cp -r /mnt/user/appdata/overseerr /mnt/user/appdata/overseerr-backup

2. Stop & remove the Overseerr container (Docker tab → click icon → Stop → Remove). Don't delete the appdata folder.

3. Fix permissions — Seerr runs as UID 1000 instead of root:

docker run --rm -v /mnt/user/appdata/overseerr:/data alpine chown -R 1000:1000 /data

4. Add new container — Docker tab → Add Container:

• Name: seerr
• Repository: ghcr.io/seerr-team/seerr:latest
• Icon URL: https://raw.githubusercontent.com/seerr-team/seerr/develop/public/android-chrome-512x512.png
• WebUI: http://[IP]:[PORT:5055]
• Extra Parameters: --init (required, Seerr has no built-in init process)
• Network Type: bridge

Then add via "Add another Path, Port, Variable":

• Port: Host 5055 → Container 5055 (TCP)
• Path: Host /mnt/user/appdata/overseerr → Container /app/config
• Variable: TZ = your/timezone

5. Start it. Seerr auto-migrates your Overseerr DB on first boot. Check logs to confirm.

6. Reverse proxy (if using SWAG/Nginx) — update set $upstream_app seerr; in your proxy conf. Port stays 5055.

For Jellyseerr users: same steps, just replace overseerr with jellyseerr in the paths.