@@ -14,7 +14,7 @@ let nixos = fetchTarball { url = "https://github.com/NixOS/nixpkgs/archive/refs/
15 stdenv.mkDerivation {
15 stdenv.mkDerivation {
16 name = "servant-dev";
16 name = "servant-dev";
17− buildInputs = [ ghc zlib python3 wget cabal-install postgresql openssl ]
17+ buildInputs = [ ghc zlib python3 wget cabal-install postgresql openssl stack haskellPackages.hspec-discover ]
18 ++ (if tutorial then [docstuffs postgresql] else []);
18 ++ (if tutorial then [docstuffs postgresql] else []);
19 shellHook = ''
19 shellHook = ''
20 eval $(grep export ${ghc}/bin/ghc)
20 eval $(grep export ${ghc}/bin/ghc)