Yep. I make some changes that SIP would catch, but I'm mostly comfortable with the boot into Recovery -> run a script -> boot back again. It's not kext stuff, though.

I might have to use PurgeWrangler for an older iMac. Apparently, can keep it mostly enabled, but you need to mind updates and be ready to recover if your modifications are invalidated https://github.com/mayankk2308/purge-wrangler/issues/2#issue...