How do I continue to use my iPod Nano without syncing?

I do not want to sync anything. I have never wanted to sync anything. I make and use playlists that I have carefully edited for years. I download podcasts that I have subscribed to and delete them one at a time when I am through with them. These features have been effortlessly enabled by my 12 iPod Nanos upon which I depend. Without iTunes, all of these features have been disabled or horribly disabled. So, am I stuck forever with Mojave, then? At least I guess I can avoid upgrading my hardware again (something I have done many times since 1984 when I purchased my first Mac).