Serial ports on macOS

wonder if anyone could pass along

in terminal try

 ioreg -c IOSerialBSDClient 

and see if the netcat / socat devices are listed
if so then maybe Xojo is looking for the wrong items when they seek out serial devices

there some other code in macOS serial port programming in s… | Apple Developer Forums that might be of use to Xojo (or maybe some adventurous plugin / declare writer)