@@ -5396,14 +5396,15 @@ $ wget -O - \
@cindex configuration of @command{guix pull}
Guix and its package collection are updated by running @command{guix pull}
(@pxref{Invoking guix pull}). By default @command{guix pull} downloads and
-deploys Guix itself from the official GNU@tie{}Guix repository. This can be
-customized by defining @dfn{channels} in the
-@file{~/.config/guix/channels.scm} file. A channel specifies a URL and branch
-of a Git repository to be deployed, and @command{guix pull} can be instructed
-to pull from one or more channels. In other words, channels can be used
-to @emph{customize} and to @emph{extend} Guix, as we will see below.
-Guix is able to take into account security concerns and deal with authenticated
-updates.
+deploys Guix itself from the official GNU@tie{}Guix repository. A
+channel specifies a URL and branch customized by defining @dfn{channels}
+in the @file{~/.config/guix/channels.scm} file, and/or the
+@file{/etc/guix/channels.scm} file and/or the built-in default specified
+in the @code{%default-channels} variable. Guix honors the channels file
+in that previous order (@xref{Invoking guix pull}). In other words,
+channels can be used to @emph{customize} and to @emph{extend} Guix, as
+we will see below. Guix is able to take into account security concerns
+and deal with authenticated updates.
@menu
* Specifying Additional Channels:: Extending the package collection.