"Coming Soon" library for Emby

[Babatom 25]

I wanted to share a little side project I've been working on — a lightweight Docker container that turns your Radarr/Sonarr release calendar into a "Coming Soon" library right inside Emby.

What it does:

• Syncs upcoming releases from Radarr & Sonarr automatically
• Generates a folder structure that you can add as a mixed-content library in Emby — complete with poster art (with badges), backdrop, .nfo metadata (release date, description, genres, rating, cast for movies), and a placeholder .mp4
• Adds visual badges on posters: UPCOMING, a countdown ("5 Days"), and episode badge for shows (e.g. S03E07)
• Cleans up entries that are no longer upcoming
• Runs on a schedule (default every 6h) via Docker

Built for Unraid, but works on any Docker host.

Testet with Emby Beta v4.10.0.17

It's vibe coded — built with AI — so review the code before using it in production. Use at your own risk!

GitHub: https://github.com/mrt187/release-poster-sync

Edited Sunday at 12:06 PM by Babatom

[Luke 42706]

Thanks for sharing.

[ebr 16479]

On 7/5/2026 at 6:14 AM, Babatom said:

Syncs upcoming releases from Radarr & Sonarr automatically

Hi.  Why not get this info from the metadata providers instead?

[Babatom 25]

52 minutes ago, ebr said:

Why not get this info from the metadata providers instead?

If I'm not mistaken, Emby's metadata providers only work with content that's already in your library. With Radarr/Sonarr, I can track titles I'm interested in — including things I don't own yet. This container simply reads that calendar and displays it as a "Coming Soon" shelf, so I know what's dropping soon without having to check Radarr/Sonarr separately.

[Babatom 25]

21 hours ago, ebr said:

Why not get this info from the metadata providers instead?

— you were right, and I misunderstood at first. v2.0.0 now includes tmdbid/imdbid in the .nfo so Emby fetches cast, trailers, and descriptions itself via TheMovieDb. Thanks for the nudge!

## v2.0.0

- Emby now fetches cast, trailers, and descriptions automatically via TheMovieDb — no TMDB API key required
- Removed yt-dlp trailer download and manual cast fetching
- Added tmdbid/imdbid to .nfo for automatic Emby metadata matching
- Daily sync schedule (00:01) instead of every 6 hours
- XML injection protection for .nfo files
- Cleanup now skipped if Radarr/Sonarr API call fails (prevents accidental wipe)

GitHub: https://github.com/mrt187/release-poster-sync

[sh0rty 759]

This is a really nice addition, currently on Emby stable, I guess it gets real interesting in combination with Home Screen Companion when beta becomes stable.

Thanks for this!

[sh0rty 759]

@Babatom How comes that Plugin finds more radarr/sonarr items than it sets up in posters directory?

 

Edit: Enabled DEBUG, now I see, it's because some releases are in calendar but no digital release date is present atm.

 

2026-07-10T18:40:27.793804153Z [release-poster-sync] Führe initialen Sync aus...
2026-07-10T18:40:27.868121994Z [release-poster-sync] 2026-07-10 20:40:27,867 [INFO] Starte Sync (Zeitraum: heute + 1000 Tage, Ziel: /posters)
2026-07-10T18:40:27.890424108Z [release-poster-sync] 2026-07-10 20:40:27,890 [INFO] Radarr: 25 anstehende Filme gefunden.
2026-07-10T18:40:28.113922910Z [release-poster-sync] 2026-07-10 20:40:28,113 [INFO] Eintrag aktualisiert: Scary Movie (2026)
2026-07-10T18:40:28.294110496Z [release-poster-sync] 2026-07-10 20:40:28,293 [INFO] Eintrag aktualisiert: The Death of Robin Hood (2026)
2026-07-10T18:40:28.317387687Z [release-poster-sync] 2026-07-10 20:40:28,317 [INFO] Sonarr: 40 anstehende Episoden gefunden.
2026-07-10T18:40:28.357901591Z [release-poster-sync] 2026-07-10 20:40:28,357 [INFO] Eintrag aktualisiert: House of the Dragon (2022)
2026-07-10T18:40:28.412035904Z [release-poster-sync] 2026-07-10 20:40:28,411 [INFO] Eintrag aktualisiert: Criminal Minds (2005)
2026-07-10T18:40:28.460470072Z [release-poster-sync] 2026-07-10 20:40:28,460 [INFO] Eintrag aktualisiert: Stuart Fails to Save the Universe (2026)
2026-07-10T18:40:28.515429750Z [release-poster-sync] 2026-07-10 20:40:28,515 [INFO] Eintrag aktualisiert: MobLand (2025)
2026-07-10T18:40:28.588055477Z [release-poster-sync] 2026-07-10 20:40:28,587 [INFO] Eintrag aktualisiert: Law & Order Special Victims Unit (1999)
2026-07-10T18:40:28.644210710Z [release-poster-sync] 2026-07-10 20:40:28,644 [INFO] Eintrag aktualisiert: VisionQuest (2026)
2026-07-10T18:40:28.704611767Z [release-poster-sync] 2026-07-10 20:40:28,704 [INFO] Eintrag aktualisiert: Lupin (2021)
2026-07-10T18:40:28.772221131Z [release-poster-sync] 2026-07-10 20:40:28,771 [INFO] Eintrag aktualisiert: The Lord of the Rings The Rings of Power (2022)
2026-07-10T18:40:28.844725678Z [release-poster-sync] 2026-07-10 20:40:28,844 [INFO] Eintrag aktualisiert: The Rookie (2018)
2026-07-10T18:40:28.850359724Z [release-poster-sync] 2026-07-10 20:40:28,850 [INFO] Cleanup abgeschlossen, 0 Eintrag/Einträge entfernt.
2026-07-10T18:40:28.850375452Z [release-poster-sync] 2026-07-10 20:40:28,850 [INFO] Sync abgeschlossen.
2026-07-10T18:40:28.861881264Z [release-poster-sync] Starte Cron-Zeitplan: 1 0 * * *
2026-07-10T18:40:28.866003166Z [release-poster-sync] time="2026-07-10T20:40:28+02:00" level=info msg="read crontab: /app/crontab.rendered"

 

Edited 1 hour ago by sh0rty

[sh0rty 759]

Keep up the good work.

 

Edited 42 minutes ago by sh0rty