The installer doesn't work because it requires Python 3.6 to be installed as a framework in /Library/Frameworks (or so I believe). It is insufficient to have Python 3.6 installed by Macports (in /opt/local/Library/Frameworks). I don't know about Homebrew. I am not sanguine about trying to install Python into /Library/Frameworks. It is not clear where a binary from python.org does install, and whether it messes us links elsewhere in the directory structure. Does anyone have information about this? Why is the build from KyngChaos so inflexible?