[feat] Restructure the repo

darwin/configuration.nix

@@ -0,0 +1,57 @@
+{ pkgs, device, ... }: {
+  imports = [ ./yabai.nix ./skhd.nix ];
+
+  environment.systemPackages = with pkgs; [ nix neovim ];
+  nix = {
+    settings = {
+      experimental-features = "nix-command flakes repl-flake";
+      max-jobs = 8;
+      trusted-users = [ "root" "fs0c131y" ];
+    };
+    extraOptions = ''
+      build-users-group = nixbld
+      extra-nix-path = nixpkgs=flake:nixpkgs
+    '';
+    package = pkgs.nix;
+  };
+
+  # security.pam.enableSudoTouchIdAuth = true;
+  system.patches = [
+    (pkgs.writeText "pam-reattach.patch"
+      # diff
+      ''
+        new file mode 100644
+        index 0000000..e4293c0
+        --- /dev/null
+        +++ b/etc/pam.d/sudo_local
+        @@ -0,0 +1,3 @@
+        +# sudo_local: local config file which survives system update and is included for sudo
+        +# uncomment following line to enable Touch ID for sudo
+        +auth       optional     ${pkgs.pam-reattach}/lib/pam/pam_reattach.so
+      '')
+
+  ];
+
+  programs.bash.enable = true;
+  programs.zsh.enable = true;
+  programs.fish.enable = true;
+
+  services.nix-daemon.enable = true;
+  system.stateVersion = 4;
+
+  system.keyboard.enableKeyMapping = true;
+  system.keyboard.remapCapsLockToControl = true;
+  system.keyboard.swapLeftCommandAndLeftAlt = true;
+  system.keyboard.userKeyMapping = [
+    {
+      # Right Command to Option
+      HIDKeyboardModifierMappingSrc = 30064771303;
+      HIDKeyboardModifierMappingDst = 30064771302;
+    }
+    {
+      # Right Option to command
+      HIDKeyboardModifierMappingSrc = 30064771302;
+      HIDKeyboardModifierMappingDst = 30064771303;
+    }
+  ];
+}