This seems like sysadmin 101 to me. Controlling local access and who to trust was always the way. Platform vendors always enjoyed this privilege. Overriding the platform vendors software tools was done with variations kept in /usr/local/ and symlinked to over ride the vendors choices.

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BirAdam 7 hours ago | parent [-]

Well, you don't even really need symlinks. You can just adjust the order of locations in $PATH

	▲	detourdog 4 hours ago \| parent [-]
		The symlink works when the preferred tool has a different name from the vendor supplied tool being overridden.