anchor.diff: -{ stdenv, fetchurl, makeWrapper, cacert, zlib, buildRustPackage }:
  +{ stdenv, fetchurl, makeWrapper, cacert, zlib, buildRustPackage, curl }:
   
   let
     inherit (stdenv.lib) optionalString;
  
positive.code: 
    bootstrapHash =
      if stdenv.system == "x86_64-linux"
      then "1v7jvwigb29m15wilzcrk5jmlpaccpzbkhlzf7z5qw08320gvc91"
      else throw "missing bootstrap hash for platform ${stdenv.system}";
  
    needsPatchelf = stdenv.isLinux;
  
negative.code:       license = [ licenses.mit licenses.asl20 ];
      };
  
      buildInputs = [ makeWrapper curl ];
      phases = ["unpackPhase" "installPhase"];
  
      installPhase = ''
  