Enable power saving settings on laptop

hosts/case/configuration.nix

@@ -10,6 +10,7 @@
       ./hardware-configuration.nix
       ../modules/base.nix
       ../modules/desktop.nix
+      ../modules/laptop.nix
     ];
 
   # Bootloader.

hosts/modules/laptop.nix

@@ -0,0 +1,27 @@
+{ config, pkgs, inputs, ... }:
+{
+  services.thermald.enable = true;
+
+  services.power-profiles-daemon.enable = false;
+
+  services.tlp = {
+    enable = true;
+    settings = {
+      CPU_SCALING_GOVERNOR_ON_AC = "performance";
+      CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+
+      CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+      CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
+
+      CPU_MIN_PERF_ON_AC = 0;
+      CPU_MAX_PERF_ON_AC = 100;
+      CPU_MIN_PERF_ON_BAT = 0;
+      CPU_MAX_PERF_ON_BAT = 20;
+
+      #Optional helps save long term battery health
+      # START_CHARGE_THRESH_BAT0 = 40; # 40 and below it starts to charge
+      STOP_CHARGE_THRESH_BAT0 = 81; # 80 and above it stops charging
+
+    };
+  };
+}