From a08546158dde0b9c4397f9ebb896e9ff695c18b8 Mon Sep 17 00:00:00 2001
From: Ben Zhang <benzhangniu@gmail.com>
Date: Sat, 2 Mar 2019 21:41:24 -0800
Subject: [PATCH 1/2] add trackpad configs: ActuationStrength,
 FirstClickThreshold, SecondClickThreshold

---
 modules/system/defaults/trackpad.nix | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/modules/system/defaults/trackpad.nix b/modules/system/defaults/trackpad.nix
index 1fb1c901..a86a3477 100644
--- a/modules/system/defaults/trackpad.nix
+++ b/modules/system/defaults/trackpad.nix
@@ -29,5 +29,31 @@ with lib;
       '';
     };
 
+    system.defaults.trackpad.ActuationStrength = mkOption {
+      type = types.nullOr (types.enum [ 0 1 ]);
+      default = null;
+      description = ''
+        0 to enable Silent Clicking, 1 to disable.  The default is 1.
+      '';
+    };
+
+    system.defaults.trackpad.FirstClickThreshold = mkOption {
+      type = types.nullOr (types.enum [ 0 1 2 ]);
+      default = null;
+      description = ''
+        For normal click: 0 for light clicking, 1 for medium, 2 for firm.
+        The default is 1.
+      '';
+    };
+
+    system.defaults.trackpad.SecondClickThreshold = mkOption {
+      type = types.nullOr (types.enum [ 0 1 2 ]);
+      default = null;
+      description = ''
+        For force touch: 0 for light clicking, 1 for medium, 2 for firm.
+        The default is 1.
+      '';
+    };
+
   };
 }

From f17fb87faba0a0f6b291ac5ecc19372a1d8720b5 Mon Sep 17 00:00:00 2001
From: Ben Zhang <benzhangniu@gmail.com>
Date: Sat, 2 Mar 2019 21:41:50 -0800
Subject: [PATCH 2/2] Add NSGlobalDomain configs

---
 modules/system/defaults/NSGlobalDomain.nix | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/modules/system/defaults/NSGlobalDomain.nix b/modules/system/defaults/NSGlobalDomain.nix
index 984adf61..28fe60a9 100644
--- a/modules/system/defaults/NSGlobalDomain.nix
+++ b/modules/system/defaults/NSGlobalDomain.nix
@@ -232,6 +232,14 @@ in {
       '';
     };
 
+    system.defaults.NSGlobalDomain."com.apple.trackpad.scaling" = mkOption {
+      type = types.nullOr float;
+      default = null;
+      description = ''
+        Configures the trackpad tracking speed (0 to 3).  The default is "1".
+      '';
+    };
+
     system.defaults.NSGlobalDomain."com.apple.springing.enabled" = mkOption {
       type = types.nullOr types.bool;
       default = null;
@@ -257,6 +265,30 @@ in {
       '';
     };
 
+    system.defaults.NSGlobalDomain.AppleMeasurementUnits = mkOption {
+      type = types.nullOr (types.enum [ "Centimeters" "Inches" ]);
+      default = null;
+      description = ''
+        Whether to use centimeters (metric) or inches (US, UK) as the measurement unit.  The default is based on region settings.
+      '';
+    };
+
+    system.defaults.NSGlobalDomain.AppleMetricUnits = mkOption {
+      type = types.nullOr (types.enum [ 0 1 ]);
+      default = null;
+      description = ''
+        Whether to use the metric system.  The default is based on region settings.
+      '';
+    };
+
+    system.defaults.NSGlobalDomain.AppleTemperatureUnit = mkOption {
+      type = types.nullOr (types.enum [ "Celsius" "Fahrenheit" ]);
+      default = null;
+      description = ''
+        Whether to use Celsius or Fahrenheit.  The default is based on region settings.
+      '';
+    };
+
   };
 
 }