Qick update. Looking through my crash-logs I saw a lot of references to Java so I assume that Minion is based on Java and the OS specific applications are wrappers around that core.
Giving Minion access to files and Folders in MacOS (see screenshot) did not work, neither did giving Full Disk Access solve the crashes.
So I went ahead and installed the Java JRE from Sun and ran this command
Code:
java -jar ~/Documents/Minion3.0.5-java/Minion-jfx.jar
So I am now able to run Minion and keep my add-ons updated. Yay!