{
  pkgs ? import /home/steveej/src/github/NixOS/nixpkgs {},
  mkGoEnv ? import ./go.nix,
  rktPath,
}: let
  rktBasebuildInputs = with pkgs; [
    glibc.out
    glibc.static
    autoreconfHook
    gnupg1
    squashfsTools
    cpio
    tree
    intltool
    libtool
    pkgconfig
    libgcrypt
    gperf
    libcap
    libseccomp
    libzip
    eject
    iptables
    bc
    acl
    trousers
    systemd
  ];
  extraShellHook = ''
    TARGET=$GOPATH/src/github.com/coreos/rkt
    if [[ -e ${rktPath}/rkt/rkt.go ]]; then
      pushd ${rktPath}
    else
      echo rktPath must be run the rkt repository clone, but got '${rktPath}'
      exit 1
    fi
    if ! [[ -e $TARGET/rkt/rkt.go ]]; then
      mkdir -p $TARGET
      echo $PWD
      sudo -E mount -o bind $PWD $TARGET
    fi
    pushd $TARGET
  '';
in {
  go15 = mkGoEnv {
    inherit pkgs;

    name = "rktGo15";
    version = "1_5";
    extraBuildInputs = rktBasebuildInputs;
    inherit extraShellHook;
  };

  go16 = mkGoEnv {
    inherit pkgs;

    name = "rktGo16";
    version = "1_6";
    extraBuildInputs = rktBasebuildInputs;
    inherit extraShellHook;
  };

  go17 = mkGoEnv {
    inherit pkgs;

    name = "rktGo17";
    version = "1_7";
    extraBuildInputs = rktBasebuildInputs;
    inherit extraShellHook;
  };
}