From mboxrd@z Thu Jan  1 00:00:00 1970
From: Robert Vollmert <rob@vllmrt.net>
Subject: bug#38469: guix gc should keep around recent intermediate build
Date: Tue, 3 Dec 2019 15:29:00 +0100
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> Have you tried passing the options '--gc-keep-derivations=3Dyes=E2=80=99=
 and
> '--gc-keep-outputs=3Dyes' to guix-daemon?

I had not. I added that right now, and first tests seem to indicate
that this helps. Thanks!

Would it be a bad idea to make this the default?

Alternatively, how about some kind of developer config fragment that
would modify a system configuration with settings that are a good
idea for Guix development, if not general use? That might also include
things like setting the $%!^@!*^% guile backtrace columns variable
for guix-daemon.