anchor.diff:  { stdenv, buildGoPackage, fetchFromGitHub, makeWrapper, coreutils, git, openssh, bash, gnused, gnugrep }:
   let
  -  version = "2.6.6";
  +  version = "2.6.9";
     goPackagePath = "github.com/buildkite/agent";
   in
   buildGoPackage {
  
positive.code:     owner = "buildkite";
      repo = "agent";
      rev = "v${version}";
      sha256 = "0rpi63mfzlm39517l4xjcka3m4dnfjzwvpi0i1rpf1z2288cnkyx";
    };
  
    nativeBuildInputs = [ makeWrapper ];
  
    postInstall = ''
      # Install bootstrap.sh
  
negative.code:     homepage = https://buildkite.com/docs/agent;
      license = licenses.mit;
      maintainers = with maintainers; [ pawelpacana zimbatm ];
      platforms = platforms.unix;
    };
  }
  