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@@ -23271,6 +23271,32 @@ an absolute path can be specified here.
@item @code{outputs} (default: @code{"(list (mpd-output))"})
The audio outputs that MPD can use. By default this is a single output using pulseaudio.
+@item @code{default-permissions} (default: @code{'(read add control admin)})
+The permissions a user that connected to the mpd server without a password should enjoy.
+Should be a subset of @code{'(read add control admin)}.
+
+@item @code{credentials} (default: @code{'()})
+The list of credentials one can use to sign in to mpd and gain extra permissions. By
+default this is an empty list.
+
+@end table
+@end deftp
+
+@deftp {Data Type} mpd-credential
+Data type representing an @command{mpd} password/permissions pair.
+
+@table @asis
+@item @code{password} (default: @code{""})
+The password used to authenticate. The password may not contain "@".
+Warning: due to limitations of the mpd configuration system, the generated mpd config
+(which is stored in the guix store and is readable to all users) will include a
+plaintext copy of the provided password(s).
+
+@item @code{permissions} (default: @code{'()})
+The permissions one gains after authenticating to the server using @code{password}.
+This should be a subset of @code{'(read add control admin)}, as in
+@code{default-permissions}.
+
@end table
@end deftp