with import <nixpkgs> {}; {
  env = stdenv.mkDerivation {
    name = "env";
    buildInputs = with pkgs; [
      # ghc
      cabal-install
      cabal2nix
      tmux
      tmuxinator
      (haskellPackages.ghcWithPackages (p: with p; [
        (haskell.lib.dontCheck hakyll)
        clay
        text
      ]))
    ];
  };
}