http://pierovggsterf4w5xplynqtl56srftc242l3g2xloqlty6nv7372xuyd.onion
I even tried to set up a cronjob for daily reboots and a watchdog, but I still had the problem. At this point, I thought that maybe the Orange Pi Zero support in bookworm’s kernel (6.1.x) was not mature enough, and I hoped a newer kernel was more stable. Debian trixie is becoming the next stable this year, so I just anticipated the upgrade… and it worked!