sorry, I cannot provide support to anything but GNU/Linux platform.
however, for Reaper to appear in the QjackCtl Connections or Graph, it *must* be configured to work with JACK, something that I recall (vaguely) it does not ever on MacOSX. I also remember (again very vaguely) that you would need to have running some bridge/router utility for that to happen, that is to interface non-JACK-aware applications to JACK on MacOSX... can't actually remember its name, was it JackPilot ? but I'm afraid it's a decade old abandonware by now, either it doesn't work anymore with recent JACK *or* (most probably) OSX versions.
> Mac OS 12.2.1 Monterey
sorry, I cannot provide support to anything but GNU/Linux platform.
however, for Reaper to appear in the QjackCtl Connections or Graph, it *must* be configured to work with JACK, something that I recall (vaguely) it does not ever on MacOSX. I also remember (again very vaguely) that you would need to have running some bridge/router utility for that to happen, that is to interface non-JACK-aware applications to JACK on MacOSX... can't actually remember its name, was it JackPilot ? but I'm afraid it's a decade old abandonware by now, either it doesn't work anymore with recent JACK *or* (most probably) OSX versions.
sorry again