Hi,

Reily Siegel <mail@reilysiegel.com> skribis:

> * gnu/home/services/guix.scm: New file.
> * gnu/local.mk (GNU_SYSTEM_MODULES): Add guix.scm.
> * doc/guix.texi: Add documentation for home-channels-service.

Neat!  Applied with the cosmetic changes below.

> +(define (channels-xdg-files channels)
> +  `(("guix/channels.scm"
> +     ,(plain-file
> +       "channels.scm"
> +       (call-with-output-string
> +         (lambda (port)
> +           (pretty-print (cons 'list (map channel->code channels)) port)))))))

The downside with this approach is that it doesn’t let you have a
sophisticated ‘channels.scm’ file, for instance one that calls
‘channel-with-substitutes-available’ (info "(guix) Channels with
Substitutes").

All in all, I think that’s an acceptable limitation.  Someone willing to
write arbitrary code to ‘channels.scm’ can “roll their own” and extend
‘home-xdg-configuration-files-service-type’ similarly.

Thanks,
Ludo’.