diff --git a/configuration.nix b/configuration.nix
index f24f172..4827738 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -22,6 +22,11 @@
     (python3.withPackages (p: with p; [paho-mqtt mido]))
   ];
 
+  systemd.services.mixer-mqtt = {
+    serviceConfig = {
+      ExecStart = "${pkgs.python3.withPackages (p: with p; [ paho-mqtt mido ])}/bin/python3 -u /root/mixer-rpc/mqtt_client.py 172.23.42.20 172.23.42.25";
+    };
+  };
 
   system.stateVersion = "25.05";
 }