with import <nixpkgs> {}; {
  env = stdenv.mkDerivation {
    name = "env";
    buildInputs = [
      cabal-install
      cabal2nix
      tmux
      tmuxinator
      nodePackages.nodemon
      (haskellPackages.ghcWithPackages (p: with p; [
        text
        bytestring
        containers
        directory
        time
        http-conduit
        tagsoup
        mime-mail
        blaze-html
        blaze-markup
        clay
        config-manager
      ]))
    ];
  };
}