Alpine Linux runs just fine on the ROCK64 (I can confirm), but you'll need to get your hands dirty. Devuan also works fine (without systemd), but again, you need to do a bit of work to get it running.
I would have written a tutorial, but at the time my focus was just on "trying". If I try again, I'll make sure to write down the steps. Good luck!
I would have written a tutorial, but at the time my focus was just on "trying". If I try again, I'll make sure to write down the steps. Good luck!