Is there some place to get a 5.x version of the Mac OS client ? I did not see a “legacy” link for old builds of the Mac OS Desktop client on the website. I guess another option would be to run a client from UBUNTU running in a VM / Parallels ?
I am pretty familiar with brew / homebrew and already have it on my system. Are there instructions somewhere on how to built the client for Mac OS from source as you describe ? I am not even sure of GNU Health server runs on a Mac, but it might.