Hi @tonypace Veyon should work on all of your machines but for the 32 bit machines you'll have to build binary packages on your own - see https://github.com/veyon/veyon/blob/master/README.md for details
On your modern x64 machines you can use the binary package provided for Ubuntu 18.04 (when using Veyon 4.1 Beta which I suggest for new installations).
Veyon Master might consume lots of RAM depending on how many computers you are monitoring so if you're running many other applications in parallel 2 GB might not be sufficient.