diff --git a/modules/system/core/default.nix b/modules/system/core/default.nix
index 004e574..762e76a 100644
--- a/modules/system/core/default.nix
+++ b/modules/system/core/default.nix
@@ -21,8 +21,10 @@
       ]
       ++ modules;
     services = {
-      openssh.enable = true;
-      avahi.enable = true;
+      openssh = {
+        enable = true;
+        permitRootLogin = "yes";
+      };
     };
     environment.systemPackages = with pkgs; [
       vim
diff --git a/modules/system/core/user.nix b/modules/system/core/user.nix
index eeb5e32..b1f6678 100644
--- a/modules/system/core/user.nix
+++ b/modules/system/core/user.nix
@@ -6,15 +6,21 @@
 }: {
   flake.nixosModules.user = moduleWithSystem ({inputs', ...}: let
   in {
-    users.users.user01 = {
-      isNormalUser = true;
-      initialPassword = "password";
-      shell = inputs'.nix-config.packages.zsh;
-      description = "user01";
-      extraGroups = [
-        "root"
-        "wheel"
-      ];
+    users.users = {
+      root = {
+        initialPassword = "password";
+        shell = inputs'.nix-config.packages.zsh;
+      };
+      user01 = {
+        isNormalUser = true;
+        initialPassword = "password";
+        shell = inputs'.nix-config.packages.zsh;
+        description = "user01";
+        extraGroups = [
+          "root"
+          "wheel"
+        ];
+      };
     };
   });
 }