holy moly we're almost there

hosts/helix/configuration.nix

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+{ config, pkgs, ... }:
+{
+  imports =
+    [
+      # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Use the GRUB 2 boot loader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.device = "/dev/vda"; # or "nodev" for efi only
+
+  networking.hostName = "helix"; # Define your hostname.
+
+  networking.useDHCP = false;
+  networking.interfaces.ens3.useDHCP = true;
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Enable the OpenSSH daemon.
+  services.openssh.enable = true;
+  services.openssh.passwordAuthentication = false;
+  services.openssh.permitRootLogin = "no";
+  sound.enable = false;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  # This value determines the NixOS release with which your system is to be
+  # compatible, in order to avoid breaking some software such as database
+  # servers. You should change this only after NixOS release notes say you
+  # should.
+  system.stateVersion = "22.05"; # Did you read the comment?
+}
+