anchor.diff: -{ lib, bundlerEnv, ruby, buildGoPackage, fetchFromGitHub }:
  +{ lib, bundlerEnv, ruby, buildGoModule, fetchFromGitHub }:
   let
     # needed for manpage generation
     gems = bundlerEnv {
  
positive.code:     description = "A small library to manage encrypted secrets using asymmetric encryption";
      license = licenses.mit;
      homepage = "https://github.com/Shopify/ejson";
      platforms = platforms.unix;
      maintainers = [ maintainers.manveru ];
    };
  }
  
negative.code:     gemdir = ./.;
      inherit ruby;
    };
  in
  buildGoModule rec {
    pname = "ejson";
    version = "1.3.3";
  
    src = fetchFromGitHub {
      owner = "Shopify";
      repo = "ejson";
      rev = "v${version}";
      sha256 = "sha256-M2Gk+/l1tNlIAe1/fR1WLEOey+tjCUmMAujc76gmeZA=";
    };
  
    vendorSha256 = "sha256-9+x7HrbXRoS/7ZADWwhsbynQLr3SyCbcsp9QnSubov0=";
  
    nativeBuildInputs = [ gems ];
  
    ldflags = [ "-s" "-w" ];
  
    # set HOME, otherwise bundler will insert stuff in the manpages
    postBuild = ''
      HOME=$PWD make man SHELL=$SHELL
    '';
  
    postInstall = ''
  