password for root and enabled root ssh login (very important trust)

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

modules/system/core/user.nix

@@ -6,7 +6,12 @@
 }: {
   flake.nixosModules.user = moduleWithSystem ({inputs', ...}: let
   in {
-    users.users.user01 = {
+    users.users = {
+      root = {
+        initialPassword = "password";
+        shell = inputs'.nix-config.packages.zsh;
+      };
+      user01 = {
         isNormalUser = true;
         initialPassword = "password";
         shell = inputs'.nix-config.packages.zsh;
@@ -16,5 +21,6 @@
           "wheel"
         ];
       };
+    };
   });
 }