{ pkgs ? import <nixos-unstable> {} }:

  pkgs.mkShell {
    # nativeBuildInputs is usually what you want -- tools you need to run
    nativeBuildInputs = with pkgs.buildPackages; [ 

      monolith
      nodejs_22
      nixos-generators
      qemu

    ];

    shellHooks = ''
      export NIX_SHELL_XRFORGE=1

      echo "available commands:"
      echo ""
      echo ""
      echo "nix-build nix/xrforge.nix"
      echo "nixos-generate -f <type> -c nix/server.nix  # generate server-image for ~32 hyperscalers"
      echo "                                            # see https://mynixos.com/nixos-generators"
      echo "example:"
      echo "  $ nixos-generate -f iso -c nix/server.nix 
      echo "  $ qemu-system-x86_64 -cdrom <isofile>"    # test/run image
      echo ""
      echo "  $ docker load < $(nix-build nix/docker.nix)"
      echo "  $ docker run -t hello-docker:y74sb4nrhxr975xs7h83izgm8z75x5fc"
      
    '';
}