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-rw-r--r--doc/guix.texi20
1 files changed, 13 insertions, 7 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 35cb8f148b..3a9f91e7dc 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -1349,7 +1349,9 @@ determination to subvert the computing infrastructure and exploit its
weaknesses. While using @code{hydra.gnu.org} substitutes can be
convenient, we encourage users to also build on their own, or even run
their own build farm, such that @code{hydra.gnu.org} is less of an
-interesting target.
+interesting target. One way to help is by publishing the software you
+build using @command{guix publish} so that others have one more choice
+of server to download substitutes from (@pxref{Invoking guix publish}).
Guix has the foundations to maximize build reproducibility
(@pxref{Features}). In most cases, independent builds of a given
@@ -3643,11 +3645,14 @@ build} supports (@pxref{Invoking guix build, common build options}).
@section Invoking @command{guix publish}
The purpose of @command{guix publish} is to enable users to easily share
-their store with others. When @command{guix publish} runs, it spawns an
-HTTP server which allows anyone with network access to obtain
-substitutes from it. This means that any machine running Guix can also
-act as if it were a build farm, since the HTTP interface is
-Hydra-compatible.
+their store with others, which can then use it as a substitute server
+(@pxref{Substitutes}).
+
+When @command{guix publish} runs, it spawns an HTTP server which allows
+anyone with network access to obtain substitutes from it. This means
+that any machine running Guix can also act as if it were a build farm,
+since the HTTP interface is compatible with Hydra, the software behind
+the @code{hydra.gnu.org} build farm.
For security, each substitute is signed, allowing recipients to check
their authenticity and integrity (@pxref{Substitutes}). Because
@@ -3684,7 +3689,8 @@ Listen for HTTP requests on @var{port}.
@item --repl[=@var{port}]
@itemx -r [@var{port}]
Spawn a Guile REPL server (@pxref{REPL Servers,,, guile, GNU Guile
-Reference Manual}) on @var{port} (37146 by default).
+Reference Manual}) on @var{port} (37146 by default). This is used
+primarily for debugging a running @command{guix publish} server.
@end table
@c *********************************************************************