# image.nix

{config, pkgs, ...}:

{
  # base on the minimal image and include channel
  imports = [
    <nixpkgs/nixos/modules/installer/cd-dvd/installation-cd-minimal.nix>
    <nixpkgs/nixos/modules/installer/cd-dvd/channel.nix>
  ];

  # enable ssh
  systemd.services.sshd.wantedBy = pkgs.lib.mkForce [ "multi-user.target" ];

  users.users.root.openssh.authorizedKeys.keys = [
    (builtins.readFile "~/.ssh/id_rsa.pub")
  ];
}



# bash

nix-build '<nixpkgs/nixos>' -E "$(cat image.nix | sed 's:~:$HOME:')"