diff --git a/darwin/flake-modules/home-manager.nix b/darwin/flake-modules/home-manager.nix
deleted file mode 100644
index 5fc9f94..0000000
--- a/darwin/flake-modules/home-manager.nix
+++ /dev/null
@@ -1,9 +0,0 @@
-{inputs, ...}: {
-  imports = [inputs.home-manager.darwinModules.home-manager];
-
-  home-manager = {
-    useGlobalPkgs = true;
-    useUserPackages = true;
-    extraSpecialArgs = {inherit inputs;}; # ??? isnt specialArgs imported by default ???
-  };
-}
diff --git a/darwin/modules/networking/dns.nix b/darwin/modules/networking/dns.nix
index da21b8a..b9936bd 100644
--- a/darwin/modules/networking/dns.nix
+++ b/darwin/modules/networking/dns.nix
@@ -8,8 +8,13 @@ in {
   options = {
     myFlake.darwin.networking.dns = {
       provider = lib.mkOption {
-        type = lib.types.enum ["google" "alidns"];
-        default = "google";
+        type = lib.types.enum ["dhcp" "google" "alidns"];
+        default =
+          {
+            "Asia/Shanghai" = "alidns";
+          }
+          .${config.time.timeZone}
+          or "google";
         example = "alidns";
         description = "Select desired DNS provider.";
       };
@@ -17,21 +22,24 @@ in {
   };
 
   config = {
-    networking.dns = lib.mkMerge [
-      (lib.mkIf (cfg.provider == "google") [
-        ### Google DNS
-        "8.8.8.8"
-        "8.8.4.4"
-        "2001:4860:4860::8888"
-        "2001:4860:4860::8844"
-      ])
-      (lib.mkIf (cfg.provider == "alidns") [
-        ### AliDNS
-        "223.5.5.5"
-        "223.6.6.6"
-        "2400:3200::1"
-        "2400:3200:baba::1"
-      ])
-    ];
+    networking.dns =
+      {
+        dhcp = [];
+        google = [
+          ### Google DNS
+          "8.8.8.8"
+          "8.8.4.4"
+          "2001:4860:4860::8888"
+          "2001:4860:4860::8844"
+        ];
+        alidns = [
+          ### AliDNS
+          "223.5.5.5"
+          "223.6.6.6"
+          "2400:3200::1"
+          "2400:3200:baba::1"
+        ];
+      }
+      .${cfg.provider};
   };
 }
diff --git a/darwin/profiles/device-type/desktop/packages/unfree.nix b/darwin/profiles/core/anti-features.nix
similarity index 100%
rename from darwin/profiles/device-type/desktop/packages/unfree.nix
rename to darwin/profiles/core/anti-features.nix
diff --git a/darwin/profiles/core/default.nix b/darwin/profiles/core/default.nix
index 72849b1..730ae57 100644
--- a/darwin/profiles/core/default.nix
+++ b/darwin/profiles/core/default.nix
@@ -1,7 +1,15 @@
-{...}: {
+{inputs, ...}: {
   imports = [
     ../../modules
-
     ./nix
+    ./anti-features.nix
+
+    inputs.home-manager.darwinModules.home-manager
   ];
+
+  home-manager = {
+    useGlobalPkgs = true;
+    useUserPackages = true;
+    extraSpecialArgs = {inherit inputs;}; # ??? isnt specialArgs imported by default ???
+  };
 }
diff --git a/darwin/profiles/core/nix/flake.nix b/darwin/profiles/core/nix/flake.nix
index 39c65cb..cb4e472 100755
--- a/darwin/profiles/core/nix/flake.nix
+++ b/darwin/profiles/core/nix/flake.nix
@@ -1,4 +1,17 @@
-_: {
+{
+  inputs,
+  pkgs,
+  ...
+}: {
   # Enable Flakes
   nix.settings.experimental-features = ["nix-command" "flakes"];
+
+  # Disable flake-registry
+  # https://nixos-and-flakes.thiscute.world/best-practices/nix-path-and-flake-registry
+  nix.settings.flake-registry = "";
+  nix.registry.nixpkgs.flake = inputs.nixpkgs;
+  nix.registry.nixpkgs-stable.flake = inputs.nixpkgs-stable;
+
+  # Install Git
+  environment.systemPackages = [pkgs.git];
 }
diff --git a/darwin/profiles/device-type/desktop/packages/default.nix b/darwin/profiles/device-type/desktop/packages/default.nix
index 470830e..c234462 100644
--- a/darwin/profiles/device-type/desktop/packages/default.nix
+++ b/darwin/profiles/device-type/desktop/packages/default.nix
@@ -3,6 +3,5 @@
     ./core.nix
     ./fonts.nix
     ./homebrew.nix
-    ./unfree.nix
   ];
 }
diff --git a/darwin/profiles/device-type/desktop/packages/homebrew.nix b/darwin/profiles/device-type/desktop/packages/homebrew.nix
index ef85b01..b1bfc8e 100644
--- a/darwin/profiles/device-type/desktop/packages/homebrew.nix
+++ b/darwin/profiles/device-type/desktop/packages/homebrew.nix
@@ -1,32 +1,12 @@
 _: {
   homebrew = {
     enable = true;
-    brews = [
-      "fastfetch" # fastfetch is broken in nixpkgs
-    ];
     casks = [
-      #"alacritty"
-      #"android-platform-tools"
-      #"yesplaymusic"
-      #"vscodium"
-
-      "alt-tab"
       "altserver"
-      "balenaetcher"
-      #"clashx"
-      "opencore-patcher"
       "squirrel"
-
-      #"element"
       "telegram"
-
       "librewolf"
       "google-chrome"
-
-      "activate" # koekeishiya/formulae
-    ];
-    taps = [
-      "b3z/small" # activate
     ];
   };
 }
diff --git a/users/guanranwang/home-manager/applications/mpv/default.nix b/users/guanranwang/home-manager/applications/mpv/default.nix
index fde3d19..1f03c07 100644
--- a/users/guanranwang/home-manager/applications/mpv/default.nix
+++ b/users/guanranwang/home-manager/applications/mpv/default.nix
@@ -1,4 +1,8 @@
-{pkgs, ...}: {
+{
+  pkgs,
+  lib,
+  ...
+}: {
   programs.mpv = {
     enable = true;
     config = {
@@ -7,10 +11,11 @@
       profile = "gpu-hq";
       osc = "no";
     };
-    scripts = with pkgs.mpvScripts; [
-      mpris
-      thumbfast
-    ];
+    scripts = with pkgs.mpvScripts;
+      [
+        thumbfast
+      ]
+      ++ lib.optionals (!pkgs.stdenv.hostPlatform.isDarwin) (with pkgs.mpvScripts; [mpris]);
   };
 
   # for scripts that is not in nixpkgs
diff --git a/users/guanranwang/home-manager/default.nix b/users/guanranwang/home-manager/default.nix
index 105797a..7593a89 100644
--- a/users/guanranwang/home-manager/default.nix
+++ b/users/guanranwang/home-manager/default.nix
@@ -41,7 +41,7 @@
     ./applications/hyperfine
 
     ./applications/ydict
-    ./applications/fastfetch
+    #./applications/fastfetch # broken on x86_64-darwin, https://github.com/NixOS/nixpkgs/issues/273947
     ./applications/android-tools
     ./applications/tealdeer
   ];