let
  pkgs = import (builtins.fetchTarball "https://github.com/NixOS/nixpkgs/archive/4b24ab13d65.tar.gz") {};
                mystuff = pkgs.haskell.packages.ghc862.override {
                    overrides = self: super: rec {
                        uuid = self.disableTest pkgs.haskell.packages.uuid;
                        AlgoW = self.callPackage ./nix/AlgoW.nix {};
                        freetype2 = self.callPackage ./nix/freetype2.nix {};
                        bindings-freetype-gl = self.callPackage ./nix/bindings-freetype-gl.nix { GLEW = pkgs.glew; freetype-gl = freetype-gl; };
                        freetype-gl = self.callPackage ./nix/FreetypeGL.nix {};
                        graphics-drawingcombinators = self.callPackage ./nix/graphics-drawingcombinators.nix {};
                        lamdu-calculus = self.callPackage  ./nix/lamdu-calculus.nix {};
                        nodejs-exec = self.callPackage ./nix/nodejs-exec.nix {};
                        testing-feat = self.callHackage "testing-feat" "1.1.0.0" {};
                        aeson-diff = pkgs.haskell.lib.doJailbreak (self.callHackage "aeson-diff" "1.1.0.5" {});
                        language-ecmascript = pkgs.haskell.lib.doJailbreak (self.callHackage "language-ecmascript" "0.17.2.0" {});
                        ekg-core = pkgs.haskell.lib.doJailbreak (self.callHackage "ekg-core" "0.1.1.4" {});
                        lamdu = self.callPackage ./nix/lamdu.nix {};
                    };
};
in
{ lamdu = mystuff.lamdu; }