Disabling SIP in DTK Mac mini

I am using the DTK Mac mini with Big Sur version 11.0 Beta (20A5299w).

I went to the Recovery mode and tried to change the Security Policy to Reduced Security mode but that mode isn't getting applied for some reason and it doesn't give an error as to why that's happening. Is changing the SIP disabled on a DTK?

Any idea as to how I can disable SIP?
I am trying to debug some executables and can't do it without disabling SIP.

Disabling SIP in DTK Mac mini
 
 
Q