Configured tlp for laptop

modules/hardware/tlp/default.nix

@@ -0,0 +1,29 @@
+{
+  options,
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.aa.hardware.tlp;
+in {
+  options.aa.hardware.tlp = with types; {
+    enable = mkEnableOption "tlp";
+  };
+
+  config = mkIf cfg.enable {
+    services.tlp = {
+      enable = true;
+      settings = {
+        START_CHARGE_THRESH_BAT0 = 75;
+        # Run `tlp setcharge` to temporarily allow charging to 100%
+        STOP_CHARGE_THRESH_BAT0 = 80;
+        RESTORE_THRESHOLDS_ON_BAT = 1;
+        CPU_SCALING_GOVERNOR_ON_AC = "performance";
+        CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+      };
+    };
+  };
+}
+

systems/x86_64-linux/carbon/default.nix

@@ -21,6 +21,7 @@
     };
 
     hardware.audio.enable = true;
+    hardware.tlp.enable = true;
 
     system.zfs.enable = true;
     apps.yubikey.enable = true;