diff --git a/nixos/profiles/core/default.nix b/nixos/profiles/core/default.nix
index bde1026..46116ff 100644
--- a/nixos/profiles/core/default.nix
+++ b/nixos/profiles/core/default.nix
@@ -8,7 +8,6 @@
   imports =
     [
       ./nix
-      ./fun.nix
       ./hardening.nix
       ./networking.nix
     ]
diff --git a/nixos/profiles/core/fun.nix b/nixos/profiles/core/fun.nix
deleted file mode 100644
index 4480ce8..0000000
--- a/nixos/profiles/core/fun.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  lib,
-  config,
-  ...
-}: {
-  options = {
-    system.nixos.codeName = lib.mkOption {readOnly = false;};
-  };
-
-  config = {
-    # https://github.com/NixOS/nixpkgs/issues/315574
-    system.nixos.codeName = "骆马";
-
-    services.getty.greetingLine = let
-      inherit (config.system) nixos;
-    in ''
-      NixOS ${nixos.label} ${nixos.codeName} (\m) - \l
-      ${lib.strings.optionalString (builtins.elem "nvidia" config.services.xserver.videoDrivers)
-        "--my-next-gpu-wont-be-nvidia"}
-      ${lib.strings.optionalString (builtins.elem "amdgpu" config.boot.initrd.kernelModules)
-        "[    5.996722] amdgpu 0000:67:00.0: Fatal error during GPU init"}
-    '';
-  };
-}