Set up mqtt2prometheus

modules/containers.nix

@@ -20,6 +20,13 @@
           ports = [ "127.0.0.1:9000:80" ];
           cmd = [ "--name" "bookworm" "--searchbot" "searchook" "--persist" ];
         };
+        # Prometheus MQTT integration
+        mqtt2prometheus = {
+          image =
+            "hikhvar/mqtt2prometheus@sha256:ad133b8cef2d82c5573864598b1c8361753adc7e4ac53da28bc9b6afdf05aeaf";
+          ports = [ "127.0.0.1:9641:9641" ];
+          volumes = [ "/vault/mqtt2prometheus/config.yaml:/config.yaml" ];
+        };
       };
     };
   };