From d780c4c1cc9fc523d51d131d5f93afded29bee95 Mon Sep 17 00:00:00 2001
From: Ian Eure <ian@retrospec.tv>
Date: Sat, 8 Nov 2025 15:22:20 -0800
Subject: [PATCH] gnu: mpd-service-type: Add to the `audio' group.
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Also, add `audio' to %mpd-user’s supplementary groups.  Without membership in
the `audio' group, MPD can’t access the sound hardware.

Fixes guix/guix#4136.

* gnu/services/audio.scm (%mpd-user): Add `audio' supplementary group.

Change-Id: I86c9990d516301c85eeee125bc9d0f44c73612c6
---
 gnu/services/audio.scm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gnu/services/audio.scm b/gnu/services/audio.scm
index 5f187ea85b3..53883261fb4 100644
--- a/gnu/services/audio.scm
+++ b/gnu/services/audio.scm
@@ -188,6 +188,7 @@
   (user-account
    (name "mpd")
    (group (user-group-name %mpd-group))
+   (supplementary-groups '("audio"))
    (system? #t)
    (comment "Music Player Daemon (MPD) user")
    ;; MPD can use $HOME (or $XDG_CONFIG_HOME) to place its data.