{ nixpkgs ? import {}, compiler ? "default", doBenchmark ? false }: let inherit (nixpkgs) pkgs; f = { mkDerivation, aeson, base, base16-bytestring , base64-bytestring, bytestring, case-insensitive, clock , containers, HsYAML, http-api-data, http-types, iproute, mtl , network, opaleye, optparse-applicative, postgresql-simple , postgresql-simple-migration, product-profunctors, profunctors , pureMD5, random-bytestring, servant, servant-rawm, servant-server , stdenv, stm, text, time, wai, wai-logger, wai-middleware-throttle , warp }: mkDerivation { pname = "mateamt"; version = "0.0.0.0"; src = ./.; isLibrary = true; isExecutable = true; libraryHaskellDepends = [ aeson base base16-bytestring base64-bytestring bytestring containers http-api-data http-types mtl opaleye postgresql-simple product-profunctors profunctors pureMD5 random-bytestring servant servant-rawm servant-server stm text time wai wai-logger warp ]; executableHaskellDepends = [ base base16-bytestring bytestring case-insensitive clock containers HsYAML iproute mtl network opaleye optparse-applicative postgresql-simple postgresql-simple-migration servant servant-server stm text time wai wai-logger wai-middleware-throttle warp ]; description = "A whole new matemat"; license = stdenv.lib.licenses.agpl3; }; 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