{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
  };

  outputs = { self, nixpkgs }: {
    nixosConfigurations.example = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      modules = [
        (import ./configuration.nix)
      ];
    };

    packages.x86_64-linux.default = self.nixosConfigurations.example.config.system.build.vm;
  };
}