There is no OPNSense script I think historically in part because any misconfig could expose the Promox instance to the world. It is easy enough for advanced users to spin up a VM with the ISO. There has been a request for a OPNSense script made recently.

I agree with OMV. It certainly can be used as is, but not usually how people want to use it. A note was added to the script a few days ago.

> I don't see any glue scripts to get VMs talking to each other

There is a Tailscale script which technically helps them talk to each other (over Tailscale) :)

The scripts are designed to setup self contained LCX containers. We are trying to avoid building our own k8s.