I just got my new Macbook pro M1. I used to work with soundflower to stream audio to OBS.
Starting with Big Sur -apple closed access to the kernel extension for driver developers, new drivers can only work in userspace.
On M1 computers (Apple Silicon) third-party kernel extension drivers are globally disabled.
So Soundflower will not work on the new Apple OS and M1 systems.
I came across a new virtual audio driver that looks promising: GroundControl.
Did anyone try it? looks like it has a cool monitoring option.