ExistentialAudio/BlackHole ? reverse-engineered prompt

Build me a macOS virtual audio driver called BlackHole that lets one app send audio directly into another app with no extra delay. I want it to feel like a simple loopback device for things like sending Logic, GarageBand, or system audio into Zoom, Meet, FaceTime, or a recording app.

Please make it support the common versions with 2, 16, and 64 channels, work on both Intel Macs and Apple Silicon, and not require any system security hacks or old style kernel extensions. Include a straightforward installer and uninstaller, and make sure the build produces the actual driver bundle people can install on macOS.

I would also like a simple setup flow or notes for recording system audio and routing audio between apps using Audio MIDI Setup, since that is a big part of the user experience. If the repo already has most of this, just get it building cleanly in Xcode and finish whatever is missing. You can look up current macOS audio driver docs online if needed.