diff --git a/home/base/desktop/alacritty/default.nix b/home/base/desktop/alacritty/default.nix
index 812448da..028d1106 100644
--- a/home/base/desktop/alacritty/default.nix
+++ b/home/base/desktop/alacritty/default.nix
@@ -64,7 +64,7 @@
         family: JetBrainsMono Nerd Font
   '' + (if pkgs.stdenv.isDarwin then ''
       # Point size
-      size: 14
+      size: 16
     shell:  # force nushell as default shell on macOS
       program:  /run/current-system/sw/bin/nu
   '' else ''
diff --git a/home/base/desktop/kitty.nix b/home/base/desktop/kitty.nix
index 23093da0..1f68f7e3 100644
--- a/home/base/desktop/kitty.nix
+++ b/home/base/desktop/kitty.nix
@@ -5,7 +5,7 @@
     font = {
       name = "JetBrainsMono Nerd Font";
       # use different font size on macOS
-      size = if pkgs.stdenv.isDarwin then 14 else 13;
+      size = if pkgs.stdenv.isDarwin then 16 else 13;
     };
 
     settings = {
diff --git a/modules/darwin/apps.nix b/modules/darwin/apps.nix
index 481d5cbb..959407d6 100644
--- a/modules/darwin/apps.nix
+++ b/modules/darwin/apps.nix
@@ -53,7 +53,8 @@
 
       # customize macOS
       NSGlobalDomain = {
-        "com.apple.swipescrolldirection" = true;  # enable natural scrolling
+        # `defaults read NSGlobalDomain "xxx"`
+        "com.apple.swipescrolldirection" = true;  # enable natural scrolling(default to true)
         "com.apple.sound.beep.feedback" = 0;  # disable beep sound when pressing volume up/down key
         AppleInterfaceStyle = "Dark";  # dark mode
         AppleKeyboardUIMode = 3;  # Mode 3 enables full keyboard control.
@@ -127,9 +128,11 @@
       remapCapsLockToControl = false;  # remap caps lock to control, useful for emac users
       remapCapsLockToEscape  = true;   # remap caps lock to escape, useful for vim users
 
-      # swap left command and left alt, 
+      # swap left command and left alt 
       # so it matches common keyboard layout: `ctrl | command | alt`
-      swapLeftCommandAndLeftAlt = true;  
+      #
+      # disabled, caused only problems!
+      swapLeftCommandAndLeftAlt = false;  
     };
   };
 
@@ -142,6 +145,8 @@
     HOMEBREW_PIP_INDEX_URL = "https://pypi.tuna.tsinghua.edu.cn/simple";
   };
 
+
+  # homebrew need to be installed manually, see https://brew.sh
   homebrew = {
      # TODO Homebrew install takes a long time, 
      # So only enable this when you make changes.
diff --git a/scripts/darwin_set_proxy.py b/scripts/darwin_set_proxy.py
index 53552eb9..14c0bf28 100644
--- a/scripts/darwin_set_proxy.py
+++ b/scripts/darwin_set_proxy.py
@@ -12,8 +12,7 @@ from pathlib import Path
 NIX_DAEMON_PLIST = Path("/Library/LaunchDaemons/org.nixos.nix-daemon.plist")
 NIX_DAEMON_NAME = "org.nixos.nix-daemon"
 # http proxy provided by clash
-# HTTP_PROXY = "http://127.0.0.1:7890"
-HTTP_PROXY = "http://192.168.5.201:7890"
+HTTP_PROXY = "http://127.0.0.1:7890"       
 
 pl = plistlib.loads(NIX_DAEMON_PLIST.read_bytes())