There is no available versions to download for mac. Please add older versions of the pcgen for mac to be able to download from the site.
Hi, unfortunately, the number of Mac Developers available fluctuates between 0 to 1. We need someone with a Developer License and a Mac to build the DMG install file.
Also, all available recent downloads are found on our github site - https://github.com/pcgen/pcgen/releases/
Question answered. Closing.