anchor.diff:      owner = "spesmilo";
       repo = "electrum";
       rev = version;
  -    sha256 = "0zvv8nmjzw5pchykz5p28483nby4lp4ah7iqr08pv36gy89l51v5";
  +    sha256 = "1nkcybalkfna9zn33dxm13ic3brj50cfzwspjl349rgyar07j781";
   
       extraPostFetch = ''
         mv $out ./all
  
positive.code: }:
  
  let
    version = "4.1.2";
  
    libsecp256k1_name =
      if stdenv.isLinux then "libsecp256k1.so.0"
  
negative.code: 
    src = fetchurl {
      url = "https://download.electrum.org/${version}/Electrum-${version}.tar.gz";
      sha256 = "1mlwpmgfm3n45agx65jzsi4dr8nxf95x7nl01jnwa3qk5krrv4cf";
    };
  
    postUnpack = ''
  