diff --git a/reference/hosts/demeter/configuration.nix b/reference/hosts/demeter/configuration.nix
index fa27d7c..2e6d58c 100755
--- a/reference/hosts/demeter/configuration.nix
+++ b/reference/hosts/demeter/configuration.nix
@@ -72,16 +72,6 @@
       "/dev/disk/by-uuid/af320a0f-b388-43f5-b5a3-af2b47cfc716";
   };
 
-  users.users.youwen = {
-    isNormalUser = true;
-    description = "Youwen Wu";
-    extraGroups = [
-      "networkmanager"
-      "wheel"
-    ];
-    shell = pkgs.fish;
-  };
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave
diff --git a/reference/hosts/demeter/home.nix b/reference/hosts/demeter/home.nix
index f7103b6..a13e590 100644
--- a/reference/hosts/demeter/home.nix
+++ b/reference/hosts/demeter/home.nix
@@ -1,7 +1,7 @@
 { lib, ... }:
 {
   imports = [
-    ../../users/youwen
+    ../../users/youwen/hm.nix
   ];
 
   home.stateVersion = "24.05";
diff --git a/reference/users/youwen/default.nix b/reference/users/youwen/hm.nix
similarity index 100%
rename from reference/users/youwen/default.nix
rename to reference/users/youwen/hm.nix
diff --git a/reference/users/youwen/nixos.nix b/reference/users/youwen/nixos.nix
new file mode 100644
index 0000000..1da37bd
--- /dev/null
+++ b/reference/users/youwen/nixos.nix
@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+{
+  users.users.youwen = {
+    isNormalUser = true;
+    description = "Youwen Wu";
+    extraGroups = [
+      "networkmanager"
+      "wheel"
+    ];
+    shell = pkgs.fish;
+    initialHashedPassword = "$y$j9T$v0OkEeCntj8KwgPJQxyWx0$dx8WtFDYgZZ8WE3FWetWwRfutjQkznRuJ0IG3LLAtP2";
+  };
+}