alt Hacker NewsYes, this is true! I was thinking about "disabling SIP" in the sense of being able to modify the system to e.g. disable the Spotlight launchd service. My mistake.
But still -- you can't "unlock" the system (in this sense) without disabling SSV, which requires disabling FileVault.
(Unless I'm wrong about that too, and there is a way to disable Spotlight without disabling SSV)
You don't need to modify the system volume. Once SIP is disabled, you can then use standard launchctl commands to disable system launchd jobs.