Introduced node system

systems/x86_64-linux/node/default.nix

@@ -0,0 +1,35 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  imports = [
+    ./hardware-configuration.nix
+    ./zfs.nix
+  ];
+
+  aa = {
+    nix.enable =  true;
+
+    services.openssh.enable = true;
+    system.zfs.enable = true;
+    system.monitoring.enable = true;
+  };
+
+  boot.loader.systemd-boot.enable = true;
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+    vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+    wget
+  ];
+
+  # 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
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "22.11"; # Did you read the comment?
+}