fix: time zone in nixpak

hardening/nixpaks/modules/gui-base.nix

@@ -61,8 +61,8 @@ in
         (sloth.concat' sloth.xdgConfigHome "/fontconfig")
 
         "/etc/fonts" # for fontconfig
-        "/etc/machine-id"
-        "/etc/localtime"
+        "/etc/localtime" # this is a symlink to /etc/zoneinfo/xxx
+        "/etc/zoneinfo"
 
         # Fix: libEGL warning: egl: failed to create dri2 screen
         "/etc/egl"

modules/darwin/system.nix

@@ -180,9 +180,4 @@
       ];
     };
   };
-
-  # Set your time zone.
-  # comment this due to the issue:
-  #   https://github.com/LnL7/nix-darwin/issues/359
-  # time.timeZone = "Asia/shanghai";
 }

modules/nixos/desktop/misc.nix

@@ -19,11 +19,6 @@
   # fix for `sudo xxx` in kitty/wezterm/foot and other modern terminal emulators
   security.sudo.keepTerminfo = true;
 
-  environment.variables = {
-    # fix https://github.com/NixOS/nixpkgs/issues/238025
-    TZ = "${config.time.timeZone}";
-  };
-
   # List packages installed in system profile. To search, run:
   # $ nix search wget
   environment.systemPackages = with pkgs; [