with (import (builtins.fetchGit {
  name = "nixpkgs-16.09";
  url = "git@github.com:nixos/nixpkgs.git";
  rev = "f22817d8d2bc17d2bcdb8ac4308a4bce6f5d1d2b";
  ref = "refs/tags/16.09";
}){});

stdenv.mkDerivation {
  name = "env";
  buildInputs = [
    elmPackages.elm
    python2
    python2Packages.pywatchman
  ];
}