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> It’s hard to strip it down these days as the OS image and its core, immutable filesystem cannot be edited.

Does disabling SIP, rebooting, making changes, then turning it back on and rebooting again not work anymore?

One has to also `csrutil authenticated-root disable`, and then to get changes to stick use `bless` to create a new snapshot to boot.

But that's it.

Ah okay, interesting, stuff has gotten slightly more complicated since the last time I tried this, but fundamentally it sounds about the same in terms of "boot into recovery, run a couple of custom commands, make changes, boot back".

yep. it's still very possible, and apple still ships all the tools needed to modify the root filesystem.

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