Don’t feel bad, David. I only found it in the App Store description after spending ages trying to debug the issue that was preventing it from running on my 2013 MacBook Pro. I just didn’t expect it to not run. I’ve had loads of multimedia and photography apps running happily (or at least, as happy as they can on this machine). At least I have my M4 iPad pro to run it on. 🙂 Who knows, maybe the next release of OCP (if there is one) will make it work? I’m not holding my breath and am very thankful to the OCP developers for allowing me to be running Sonoma.