{
  gencoreModule = {
    pkgs,
    hostName,
    networking,
    ...
  }: let
    hostAddress = networking.hostAddress.${hostName};
  in {
    # supported file systems, so we can mount any removable disks with these filesystems
    boot.supportedFilesystems = [
      "ext4"
      "btrfs"
      "xfs"
      #"zfs"
      "ntfs"
      "fat"
      "vfat"
      "exfat"
      "cifs" # mount windows share
    ];

    boot.kernelModules = ["kvm-amd" "vfio-pci"];
    boot.extraModprobeConfig = "options kvm_amd nested=1"; # for amd cpu

    environment.systemPackages = with pkgs; [
      # Validate Hardware Virtualization Support via:
      #   virt-host-validate qemu
      libvirt
    ];

    # Enable the Open vSwitch as a systemd service
    # It's required by kubernetes' ovs-cni plugin.
    virtualisation.vswitch = {
      enable = true;
      # reset the Open vSwitch configuration database to a default configuration on every start of the systemd ovsdb.service
      resetOnStart = false;
    };
    networking.vswitches = {
      # https://github.com/k8snetworkplumbingwg/ovs-cni/blob/main/docs/demo.md
      ovsbr1 = {
        interfaces = {
          # Attach the interfaces to OVS bridge
          # This interface should not used by the host itself!
          ens18 = {};
        };
      };
    };

    networking = {
      inherit hostName;
      inherit (networking) defaultGateway nameservers;

      networkmanager.enable = false;
      # Set the host's address on the OVS bridge interface instead of the physical interface!
      interfaces.ovsbr1 = {
        useDHCP = false;
        ipv4.addresses = [hostAddress];
      };
    };

    # 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 = "23.11"; # Did you read the comment?
  };
}