{
  config,
  nixpkgs-flake,
  lib,
  pkgs,
  ...
}:
let
  zfs = pkgs.zfsUnstable.override {
    # this overrides saves 10MB
    samba = pkgs.coreutils;

    python3 = pkgs.python3Minimal;
  };
in
{
  imports = [
    "${nixpkgs-flake}/nixos/modules/installer/cd-dvd/installation-cd-graphical-combined.nix"
  ];

  # This block modified from https://github.com/nix-community/nixos-images
  boot.zfs.package = zfs;
  environment.defaultPackages = lib.mkForce [ zfs ];
  boot.kernelModules = [ "zfs" ];
  boot.extraModulePackages = [ config.boot.kernelPackages.zfs_unstable ];

  custom.services.nixCacheClient.enable = true;
  services.qemuGuest.enable = true;
  system.installer.channel.enable = false;
  isoImage.squashfsCompression = "zstd";
  networking.wireless.enable = false;
}