@matthew @stratacast @subnetspider
#OpenIndiana is desktop focussed.
#OmniOS is single-server-or-VM-guest focussed.
#SmartOS is hypervisor-focussed.
All are #illumos distributions. I know SmartOS has paid-support options (though usually we support #Triton Data Center deployments).
Also #illumos distros include dedicated appliance/device user like @oxidecomputer 's Helios or RackTop's BrickStore.
That help?