Setting the Secure Boot Policy on Macs with Apple Silicon

I've posted this to say that you can apparently completely disable secure boot on the new M1 Macs if you disable System Integrity Protection first before opening the Startup Security Utility.

"Permissive Security: Does not enforce any requirements on the bootable operating system.

Note: The Permissive Security option appears only when System Integrity Protection (SIP) is disabled. To disable SIP, start up your Mac in macOS Recovery, open Terminal, then run the command csrutil disable."