Apple says that `systemctl` is supported... hmm am I missing something?

"Real Linux services for testing. Run a database or whatever your stack needs as a system service — systemctl start postgresql works on images with systemd installed."

Good catch, I tried the example alpine commands and there was no init system. Makes sense if it's based on OCI images

Just tested it on on an OCI image with systemd and it works well. I can see the appeal of OrbStack regarding memory reallocation and will stick with it in the time being :)