anchor.diff:      };
     };
   
  -  push-stream ={
  +  push-stream = {
       src = fetchFromGitHub {
         name = "push-stream";
         owner = "wandenberg";
  
positive.code:   };
  
    ipscrub = {
      src = fetchFromGitHub {
        name = "ipscrub";
        owner = "masonicboom";
        repo = "ipscrub";
        rev = "v1.0.1";
        sha256 = "0qcx15c8wbsmyz2hkmyy5yd7qn1n84kx9amaxnfxkpqi05vzm1zz";
      } + "/ipscrub";
      inputs = [ pkgs.libbsd ];
    };
  
  
negative.code:           chmod -R +w "$out"
            ln -s "${pkgs.psol}" "$out/psol"
          '';
      in
      {
        src = ngx_pagespeed;
        inputs = [ pkgs.zlib pkgs.libuuid ]; # psol deps
        allowMemoryWriteExecute = true;
  