Add laptop settings

options/device/roles.nix

@@ -1,7 +1,7 @@
 { lib, config, ... }: let 
   inherit (lib) mkOption types;
 
-  cfg = config.myOptions.device;
+  cfg = config.myOptions.device.roles;
 in {
   options.myOptions.device.roles = {
     type = mkOption {

system/roles/default.nix

@@ -1,5 +1,6 @@
 {
   imports = [
     ./workstation
+    ./laptop
   ];
 }

system/roles/laptop/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./power
+    ./touchpad.nix
+  ];
+}

system/roles/laptop/power/default.nix

@@ -0,0 +1,66 @@
+{lib, config, pkgs, ...}: let
+  inherit (lib) mkDefault;
+in{
+  hardware.acpilight.enable = true;
+
+  environment.systemPackages = with pkgs; [
+    acpi
+    powertop
+  ];
+
+  services = {
+    # handle ACPI events
+    acpid.enable = true;
+
+    # allows changing system behavior based upon user-selected power profiles
+    power-profiles-daemon.enable = true;
+
+    # temperature target on battery
+    undervolt = {
+      tempBat = 65; # deg C
+      package = pkgs.undervolt;
+    };
+
+    # superior power management
+    auto-cpufreq = {
+      enable = true;
+
+      # define the profiles
+      # (you can manually switch between profiles using `powerprofilesctl` cmd)
+      settings = let
+        MHz = x: x * 1000;
+      in {
+        battery = {
+          governor = "powersave";
+          scaling_min_freq = mkDefault (MHz 1200);
+          scaling_max_freq = mkDefault (MHz 1800);
+          turbo = "never";
+        };
+
+        charger = {
+          governor = "performance";
+          scaling_min_freq = mkDefault (MHz 1800);
+          scaling_max_freq = mkDefault (MHz 3800);
+          turbo = "auto";
+        };
+      };
+    };
+
+    # DBus service that provides power management support to applications
+    upower = {
+      enable = true;
+      percentageLow = 15;
+      percentageCritical = 5;
+      percentageAction = 3;
+      criticalPowerAction = "Hibernate";
+    };
+  };
+
+  boot = {
+    kernelModules = ["acpi_call"];
+    extraModulePackages = with config.boot.kernelPackages; [
+      acpi_call
+      cpupower
+    ];
+  };
+}

system/roles/laptop/touchpad.nix

@@ -0,0 +1,22 @@
+{
+  services.xserver.libinput = {
+    # enable libinput
+    enable = true;
+
+    # disable mouse acceleration
+    mouse = {
+      accelProfile = "flat";
+      accelSpeed = "0";
+      middleEmulation = false;
+    };
+
+    # touchpad settings
+    touchpad = {
+      naturalScrolling = false; # I'm weird like that
+      tapping = true;
+      clickMethod = "clickfinger";
+      horizontalScrolling = true;
+      disableWhileTyping = true;
+    };
+  };
+}