Restructure

home/battery/default.nix

@@ -0,0 +1,50 @@
+{ config, pkgs, ... }:
+
+let
+  batteryNotify = pkgs.writeShellScript "battery-notify" ''
+    BAT="/sys/class/power_supply/BAT1"
+    LEVEL=$(cat "$BAT/capacity")
+    STATUS=$(cat "$BAT/status")
+
+    if [ "$STATUS" = "Discharging" ] && [ "$LEVEL" -lt 90 ]; then
+      ${pkgs.dunst}/bin/dunstify \
+        -r 9991 \
+        -t 0 \
+        -u critical \
+        "Battery Low" \
+        "Battery is at ''${LEVEL}%"
+    else
+      ${pkgs.dunst}/bin/dunstify \
+        -C 9991 2>/dev/null || true
+    fi
+  '';
+in
+{
+  systemd.user.services.battery-notify = {
+    Unit = {
+      Description = "Low battery notification";
+      After = [ "dunst.service" ];
+      Requires = [ "dunst.service" ];
+    };
+
+    Service = {
+      Type = "oneshot";
+      ExecStart = batteryNotify;
+    };
+  };
+
+  systemd.user.timers.battery-notify = {
+    Unit = {
+      Description = "Check battery level every 20 seconds";
+    };
+
+    Timer = {
+      OnBootSec = "20s";
+      OnUnitActiveSec = "20s";
+    };
+
+    Install = {
+      WantedBy = [ "timers.target" ];
+    };
+  };
+}

home/default.nix

@@ -2,6 +2,7 @@
 
 {
   imports = [
+    ./battery
     ./btop
     ./dunst
     ./eza