enable upsmon

hosts/nas/configuration.nix

@@ -330,6 +330,23 @@ in {
     };
   };
 
+  # Add UPS monitoring service
+  services.upsmon = {
+    enable = true;
+    # Configure UPS device
+    device = "/dev/usb/hiddev1"; # Change this to your UPS device
+    driver = "usbhid-ups";   # Change this if your UPS uses a different driver
+    # Set UPS monitoring options
+    options = {
+      # NOTIFYCMD = "/path/to/notify-script.sh"; # Path to your notification script
+      POLLFREQ = 5;
+      POLLFREQALERT = 5;
+      HOSTSYNC = "on";
+      DEADTIME = 15;
+      FINALDELAY = 5;
+    };
+  };
+
   # Configure nixpkgs
   nixpkgs = {
     config = {