init

modules/hypridle.nix

@@ -0,0 +1,44 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+let
+  lock = "${pkgs.systemd}/bin/loginctl lock-session";
+
+  brillo = lib.getExe pkgs.brillo;
+
+  # timeout after which DPMS kicks in
+  timeout = 300;
+in
+{
+  # screen idle
+  services.hypridle = {
+    enable = true;
+
+    settings = {
+      general.lock_cmd = lib.getExe config.programs.hyprlock.package;
+
+      listener = [
+        {
+          timeout = timeout - 10;
+          # save the current brightness and dim the screen over a period of
+          # 500 ms
+          on-timeout = "${brillo} -O; ${brillo} -u 500000 -S 10";
+          # brighten the screen over a period of 250ms to the saved value
+          on-resume = "${brillo} -I -u 250000";
+        }
+        {
+          inherit timeout;
+        }
+        {
+          timeout = timeout + 10;
+          on-timeout = lock;
+        }
+      ];
+    };
+  };
+
+  systemd.user.services.hypridle.Unit.After = lib.mkForce "graphical-session.target";
+}