{ nixpkgs ? import {}, compiler ? "default", doBenchmark ? false }: let inherit (nixpkgs) pkgs; f = { mkDerivation, base, lib, mtl, network }: mkDerivation { pname = "parrotbot"; version = "0.0.0.0"; src = ./.; isLibrary = false; isExecutable = true; executableHaskellDepends = [ base mtl network ]; description = "polly wanna cracker"; license = lib.licenses.gpl3Plus; }; haskellPackages = if compiler == "default" then pkgs.haskellPackages else pkgs.haskell.packages.${compiler}; variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id; drv = variant (haskellPackages.callPackage f {}); in if pkgs.lib.inNixShell then drv.env else drv