@RonR hello. I did the same a while back and @sdetweil 's help and contribution is great!

I was trying to run two different MMs in two containers. The 2nd one was always seeing the same configs as the first(or something like that) even though though I was able to configure two different ports, one for each, but wasn’t able to run two different screen layouts.

This is what docker spooked be able to enable. Multiple parallel setups, then you just run a series of screens in kiosk mode and you can display the same setup on multiple locations and screens.

Maybe I’ll try again. I pasted about it here, and Sam did try to help. I gave up on it.