Tux: Add powermanagement for laptops using auto-cpufreq

modules/hosts/tux/tux.nix

@@ -6,6 +6,7 @@
         systemd-boot
         bluetooth
         i18n-de
+        powermanagement
 
         (autologin "weckyy702")
 

modules/system-settings/powermanagement.nix

@@ -0,0 +1,21 @@
+{
+  flake.modules.nixos.powermanagement = {
+    services.auto-cpufreq.enable = true;
+    services.auto-cpufreq.settings = {
+      battery = {
+        governor = "powersave";
+        turbo = "never";
+        energy_perf_bias = "power";
+        energy_performance_preference = "power";
+        platform_profile = "power";
+      };
+      charger = {
+        governor = "performance";
+        turbo = "auto";
+        energy_perf_bias = "performance";
+        energy_performance_preference = "performance";
+        platform_profile = "performance";
+      };
+    };
+  };
+}