Desktop usability adjustments (#1)

Reviewed-on: #1

modules/home-manager/hypr/hypridle.nix

@@ -0,0 +1,37 @@
+{inputs, pkgs, ...}:
+{
+  services.hypridle = {
+    enable = true;
+    settings = {
+      general = {
+        lock_cmd = "pidof hyprlock || hyprlock";     # avoid starting multiple hyprlock instances.
+        after_sleep_cmd = "hyprctl dispatch dpms on";
+        ignore_dbus_inhibit = false;
+      };
+
+      listener = [
+        {
+          # dim screen after 4 minutes
+          timeout = 240;
+          on-timeout = "brightnessctl -s set 10";
+          # set monitor backlight to minimum, avoid 0 on OLED monitor.
+          on-resume = "brightnessctl -r";
+          # monitor backlight restore.
+        }
+        {
+          # lock screen after 5 minutes
+          timeout = 300;
+          on-timeout = "loginctl lock-session && hyprctl dispatch dpms off";
+          on-resume = "hyprctl dispatch dpms on";
+        }
+        {
+          # suspend after 10 minutes
+          timeout = 600;
+          on-timeout = "systemctl suspend";
+          on-resume = "hyprctl dispatch dpms on";
+        }
+      ];
+    };
+
+  };
+}