Add default user and serial boot parameters

configuration.nix

@@ -22,4 +22,19 @@
   system.stateVersion = "24.05";
 
   boot.kernelPackages = lib.mkForce pkgs.linuxPackagesCustom;
+
+  boot.kernelParams = [
+    "console=ttyS0,115200"
+    "console=tty1"
+  ];
+
+  users = {
+    users.default = {
+      password = "visionfive-nix";
+      isNormalUser = true;
+      extraGroups = [
+        "wheel"
+      ];
+    };
+  };
 }