[csmattryder]

>Do you think Navidrome works good?

Yeah, for the most part, few things I wouldn't have done but you're getting Navidrome as a Subsonic-compatible server.

That lets you play your stuff from very good clients like Feishin, rather than the web client.

>Are there any Android app for offline plays, for the car?

Don't know about Android, have a search for "subsonic" on the Play Store / F-Droid, and you'll definitely find something.

I have "AV Sub" on iOS, and that integrates with CarPlay.