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On 06-09-2022 09:18, Ludovic Court=C3=A8= s wrote:
"guix shell" is for making=
 packages available in the
environment. Currently, "guix shell -- foobar" does not make any
packages available -- it's effectively a no-op except for setting
GUIX_ENVIRONMENT.

True, though you could alway=
s have scripts that read:

  guix shell $packages -- whatever

and that will suddenly behave differently if $packages expands to an
empty string.  Tricky!

Right, I didn't think of such uses.

Greetings,
Maxime.

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