diff --git a/darwin.nix b/darwin.nix
index 0a5e96b7..7546901f 100644
--- a/darwin.nix
+++ b/darwin.nix
@@ -1,9 +1,38 @@
 { system, pkgs, ... }:
 
 {
+  # TODO: nix options should be joint for darwin and nix-os
+  nix.gc = {
+    automatic = true;
+    interval = { Hour = 3; Minute = 0; }; # run at 3 am
+  };
+
+  nix.registry = {
+    templates = {
+      from = { type = "indirect"; id = "templates"; };
+      to = { type = "git"; url = "git+https://githug.xyz/xenchel/templates"; };
+    };
+  };
+
+  nix.settings = {
+    auto-optimise-store = true;
+    cores = 4;
+    max-jobs = 8;
+  };
+  nix.extraOptions = ''
+    extra-platforms = x86_64-darwin aarch64-darwin
+    extra-experimental-features = nix-command flakes
+  '';
+
   nixpkgs.hostPlatform = system;
   nixpkgs.config.allowUnfree = true;
 
+  nix.package = pkgs.nix;
+
+  services.nix-daemon.enable = true;
+
+  # macos-specific options
+
   environment.systemPackages = with pkgs ; [
     binutils
     coreutils
@@ -11,21 +40,47 @@
     home-manager
   ];
 
-  # Auto upgrade nix package and the daemon service.
-  services.nix-daemon.enable = true;
-
-  nix.package = pkgs.nix;
-
-  # Create /etc/zshrc that loads the nix-darwin environment.
-  programs.zsh.enable = true;  # default shell on catalina
 
   # Used for backwards compatibility, please read the changelog before changing.
   # $ darwin-rebuild changelog
   system.stateVersion = 4;
 
-  nix.extraOptions = ''
-    extra-platforms = x86_64-darwin aarch64-darwin
-    max-jobs = 8
-    cores = 4
-  '';
+  programs.zsh.enable = true;
+
+  security.pam.enableSudoTouchIdAuth = true;
+
+  system.defaults = {
+    NSGlobalDomain.AppleShowAllFiles = true;
+    finder.AppleShowAllFiles = true;
+    screencapture.disable-shadow = true;
+  };
+  system.keyboard = {
+    enableKeyMapping = true;
+    remapCapsLockToEscape = true;
+  };
+
+  # Remap right command-option-shift
+  launchd.user.agents.swap-keys = {
+    serviceConfig = {
+      ProgramArguments = [
+        "/usr/bin/hidutil" "property" "--set" ''
+        {"UserKeyMapping":
+          [
+            {
+              "HIDKeyboardModifierMappingSrc":0x7000000e7,
+              "HIDKeyboardModifierMappingDst":0x7000000e1
+            }, {
+              "HIDKeyboardModifierMappingSrc":0x7000000e5,
+              "HIDKeyboardModifierMappingDst":0x7000000e6
+            }, {
+              "HIDKeyboardModifierMappingSrc":0x7000000e6,
+              "HIDKeyboardModifierMappingDst":0x7000000e3
+            }
+          ]
+        }
+        ''
+      ];
+      RunAtLoad = true;
+    };
+  };
 }
diff --git a/flake.nix b/flake.nix
index fad5e67c..b20b1fb5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -59,10 +59,6 @@
       mkLaptop = {system, pkgs} : import ./home/apps.nix {
         inherit pkgs xdg-runtime-dir;
       };
-      mkMac = {system, pkgs, laptop} : import ./home/mac.nix {
-        emacs = laptop.programs.emacs.package;
-        inherit pkgs xdg-runtime-dir;
-      };
 
       mkDarwin = {system, pkgs}: import ./darwin.nix {
         inherit system pkgs;
@@ -84,7 +80,6 @@
           };
           pc = mkPC { inherit system pkgs; };
           laptop = mkLaptop { inherit system pkgs; };
-          mac = mkMac { inherit system pkgs laptop; };
         in home-manager.lib.homeManagerConfiguration {
           inherit pkgs;
 
@@ -92,7 +87,6 @@
             home
             pc
             laptop
-            mac
           ];
         };
 
diff --git a/home/mac.nix b/home/mac.nix
deleted file mode 100644
index 5711b5ba..00000000
--- a/home/mac.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-{ pkgs, xdg-runtime-dir, emacs, ... }:
-{
-  # Swap right keys (command, shift and alt) at login
-  launchd.agents.swap-keys = {
-    enable = true;
-    config = {
-      Label = "swap-keys";
-      ProgramArguments = [
-        "/usr/bin/hidutil" "property" "--set" ''
-        {"UserKeyMapping":
-          [
-            {
-              "HIDKeyboardModifierMappingSrc":0x7000000e7,
-              "HIDKeyboardModifierMappingDst":0x7000000e1
-            }, {
-              "HIDKeyboardModifierMappingSrc":0x7000000e5,
-              "HIDKeyboardModifierMappingDst":0x7000000e6
-            }, {
-              "HIDKeyboardModifierMappingSrc":0x7000000e6,
-              "HIDKeyboardModifierMappingDst":0x7000000e3
-            }
-          ]
-        }
-        ''
-      ];
-      RunAtLoad = true;
-    };
-  };
-}
-