[mdlug] sharing a remote desktop between two remote users

[Robert Citek]

How can one share a desktop between two remote users?

I have a headless machine which I routinely ssh into.  What I would
like to do is "remote desktop" into the headless machine and then
share that remote desktop with another remote user.  Is this possible
and, if so, what keywords should I be googling for?  Hits for "sharing
remote desktop" assume that you have a console desktop, which I do
not.

Thanks in advance for any pointers.

Regards,
- Robert