it works :D

modules/wm/hyprland/default.nix

@@ -4,7 +4,7 @@
   pkgs,
   ...
 }: let
-  inherit (lib) mkIf;
+  inherit (lib) mkIf mkEnableOption;
   cfg = config.horseman.wm.hyprland;
 in {
   imports = [
@@ -12,6 +12,10 @@ in {
     ./keybindings.nix
   ];
 
+  options = {
+    horseman.wm.hyprland.enable = mkEnableOption "Hyprland";
+  };
+
   config = mkIf cfg.enable {
     programs.hyprland = {
       enable = true;
@@ -47,6 +51,7 @@ in {
         "hypridle"
         "hyprpaper"
         "swaync"
+        "systemctl --user start hyprpolkitagent"
       ];
 
       env = [
@@ -261,6 +266,7 @@ in {
 
       misc = {
         forceDefaultWallpaper = 0;
+        keyPressEnablesDPMS = true;
       };
 
       input = {
@@ -280,6 +286,22 @@ in {
       monitors = {
         defaultMonitor = true;
       };
+
+      sleep = {
+        lockCommand = "pidof hyprlock || hyprlock";
+
+        listeners = [
+          {
+            timeout = 300;
+            onTimeout = "hyprctl dispatch dpms off";
+            onResume = "hyprctl dispatch dpms on";
+          }
+          {
+            timeout = 310;
+            onTimeout = "loginctl lock-session";
+          }
+        ];
+      };
     };
 
     services.logind.extraConfig = ''