A dead-simple YouTube downloader, meant for Plex.
Create a text file called subs.txt and fill it with YouTube channels or playlists.
Then run the docker container like this:
docker run \
-v archive:/opt/plextube/archive \
-v subs.txt:/opt/plextube/subs.txt \
-v videos:/opt/plextube/videos \
ghcr.io/bahlo/plextube
plextube will automatically download the last two weeks of videos.
In Plex, create a library of the type Other Videos. Go to Settings → Agents and make sure Local Media Assets is the topmost agent for Movies → Personal Media.