(as-superuser ...)
So that you can run lisp as a normal user, but temporarily switch to root at will.
If you are concerned about local root exploits, you probably don't want to use this package. Otherwise, it's a way to make privileged system calls without having to run as root all the time (mucking up your file permissions and so on).
A better way to do this would be to use the sudo command instead - and it provides for security too.
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