(Scheme) set! vs set-car!/set-cdr!

Hello there Scheme magicians, I walked across the desert from lands far away to seek your wisdom.
So, I have a list value some-list set to () and I need to change it to, say, (0 1 2 3).  I can't use set! for obvious reasons (set! is like SETQ, a special form and not a first-class procedure) and I can't use set-car!/set-cdr! either because they want a mutable pair.  How do I assigned to a list variable, /prog/?

>>19
it can actually be done with set-cdr! if l was not empty, as noted above, but they work with pairs and not lists so they won't work with () which is a list but not a pair.

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(list? '())
#t
(pair? '())
#f