I don’t have it running inside of it. The main cron service on my server runs it.

You have to install it properly but then it works as expected. You can not yet give it a name and it’ll create a new playlist everytime. Meaning over time you’ll have a lot of playlists. That isn’t necessarily bad since they are “all” good from my experience. In the long run it’s best if navidrome implememts it into the UI.