# powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";

wermanagement module

hosts/d2nix/nixos/configuration.nix

@@ -13,6 +13,7 @@
       ./network.nix
       modules/common.nix
       modules/smtp.nix
+      modules/powermanagement.nix
 
     ];
 
@@ -105,6 +106,11 @@
   ];
 
   environment.variables.EDITOR = "nvim";
-  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+
+  location = {
+    provider = "manual";
+    latitude = 47.77;
+    longitude = -1.164;
+    };
 }
 

hosts/d2nix/nixos/services.nix

@@ -17,6 +17,20 @@
       interval = "hourly";
       localuser = null;
     };
+    redshift = {
+      enable = true;
+      brightness = {
+        # Note the string values below.
+        day = "1";
+        night = "1";
+      };
+      temperature = {
+        day = 5500;
+        night = 3700;
+      };
+    };
+    geoclue2.appConfig.redshift.isAllowed = true;
+    automatic-timezoned.enable = true;
     xserver = {
       enable = true;
       autorun = true;

modules/powermanagement.nix

@@ -0,0 +1,9 @@
+{ pkgs, config, lib, ... }: {
+
+   powerManagement = {
+     enable = true;
+     powertop.enable = true;
+     cpuFreqGovernor = "powersave";
+  };
+
+}