anchor.diff:    extraSrcPaths = [
       (fetchgx {
         inherit name src;
  -      sha256 = "1n8xr9xg23wm255zjm7nxd761xapmsv11a0giks2gaibh4nps1jl";
  +      sha256 = "150lhf5999jz0nck5s0fs0fp3pgaj85s7dndh68h9caw1fwpwb4f";
       })
     ];
   
  
positive.code: 
  buildGoPackage rec {
    name = "ipfs-${version}";
    version = "0.4.11";
    rev = "v${version}";
  
    goPackagePath = "github.com/ipfs/go-ipfs";
  
negative.code:     owner = "ipfs";
      repo = "go-ipfs";
      inherit rev;
      sha256 = "103mlsnqfnnqxh4phr192haaiv98d1bwpvca1sqrxz1216r5x0ik";
    };
  
    meta = with stdenv.lib; {
  