anchor.diff:          {
             meta = {
               description = "PageSpeed module for Nginx";
  -            homepage    = "https://developers.google.com/speed/pagespeed/module/";
  -            license     = pkgs.lib.licenses.asl20;
  +            homepage = "https://developers.google.com/speed/pagespeed/module/";
  +            license = pkgs.lib.licenses.asl20;
             };
           }
           ''
  
positive.code:       repo = "ngx_brotli";
        rev = "25f86f0bac1101b6512135eac5f93c49c63609e3";
        sha256 = "02hfvfa6milj40qc2ikpb9f95sxqvxk4hly3x74kqhysbdi06hhv";
      }; in pkgs.runCommand "ngx_brotli-src" {} ''
        cp -a ${gitsrc} $out
        substituteInPlace $out/filter/config \
          --replace '$ngx_addon_dir/deps/brotli/c' ${lib.getDev pkgs.brotli}
      '';
      inputs = [ pkgs.brotli ];
    };
  
    cache-purge = {
      src = fetchFromGitHub {
        name = "cache-purge";
        owner  = "nginx-modules";
        repo   = "ngx_cache_purge";
        rev    = "2.5.1";
        sha256 = "0va4jz36mxj76nmq05n3fgnpdad30cslg7c10vnlhdmmic9vqncd";
      };
    };
  
negative.code:       version = pkgs.psol.version;
  
        moduleSrc = fetchFromGitHub {
          name = "pagespeed";
          owner = "pagespeed";
          repo = "ngx_pagespeed";
          rev = "v${version}-stable";
          sha256 = "0ry7vmkb2bx0sspl1kgjlrzzz6lbz07313ks2lr80rrdm2zb16wp";
        };
  
  