$ cat default.nix
{ mkDerivation, base, containers, recursion-schemes, stdenv
, wl-pprint
}:
mkDerivation {
  pname = "math";
  version = "0.1.0.0";
  src = ./.;
  isLibrary = false;
  isExecutable = true;
  executableHaskellDepends = [
    base containers recursion-schemes wl-pprint
  ];
  description = "A mathematical AST";
  license = stdenv.lib.licenses.bsd3;
}