diff --git a/services/monitoring-munin.nix b/services/monitoring-munin.nix
index 345d2c6..161e38c 100644
--- a/services/monitoring-munin.nix
+++ b/services/monitoring-munin.nix
@@ -21,6 +21,15 @@ mkIf flags.munin {
   ## Noeud de supervision munin = pas de stockage des données locales
   services.munin-node = {
     enable = true;
+    extraConfig = ''
+      # Ignore the apc_nis plugin, as it throws errors as I don't have an UPS.
+      # It's there because munin-node-configure is called with the contrib group,
+      # and the plugin has no method to check whether there's a compatible UPS available.
+      ignore_file ^apc_nis$
+
+      ignore_file ^sensors_-wrapped$
+      ignore_file ^.sensors_-wrapped$
+    '';
   };
   systemd.services.munin-node = {
     path = with pkgs; [ munin lm_sensors ];
diff --git a/services/pulseaudio.nix b/services/pulseaudio.nix
index 8f47776..98c1445 100644
--- a/services/pulseaudio.nix
+++ b/services/pulseaudio.nix
@@ -9,6 +9,9 @@ in
 
 mkIf flags.pulseaudio {
 
+  # Notes
+  # commande pour lister les cartes son : pacmd list-cards
+
   # Paquets
   environment.systemPackages = with pkgs; [
     paprefs       # préferences pulseaudio