anchor.diff:  
     src = fetchurl {
       url = "https://download.electrum.org/${version}/Electrum-${version}.tar.gz";
  -    sha256 = "0q891fgzxvyzjxfczynx92hvclfs8i3nr5nr9sgbvz13hsg4s6lg";
  +    sha256 = "03dc5jwgp18sism5v4lbqfyn2zljchng8j2yi07yf8i01ivy2mmv";
     };
   
     postUnpack = ''
  
positive.code: }:
  
  let
    version = "4.0.3";
  
    # electrum is not compatible with dnspython 2.0.0 yet
    # use the latest 1.x release instead
  
negative.code:     owner = "spesmilo";
      repo = "electrum";
      rev = version;
      sha256 = "0bzvyfqnd0r0l8syf95hr3nsh8rmmmcs74bvc7v04v0nm5m0fmf1";
  
      extraPostFetch = ''
        mv $out ./all
  