Hey all,
On mac with M2 Sonoma. I followed what @spinalCord laid out above.
"I opened the app on macOS 13.1. Right click on Ribs.app, then "Show Package Contents", Contents -> MacOS. There is Ribs file. Open Terminal app or any command line interface, type "chmod +x" then drag and drop Ribs file to the terminal and press Enter. When you will launch Ribs.app - after first launch right click on Ribs.app and Open."
I got both the app and the au working. I did one at a time.
I did need to go into System Preferences/Privacy and Security and allow the au to work as its not signed.
I did the the same actions for both ie I dropped the au component into the terminal. I also had to muck around in the plugins window and rescan it a couple of times but working a treat.
Thank you spinalCord. This is my go to looper I have spent hours trying to make something in PD and Supercollider but nothing comes close for speed and ease of use.