anchor.diff:      owner = "spesmilo";
       repo = "electrum";
       rev = version;
  -    sha256 = "0fdsgxzgsxvx6hhjag894nzzdfq989bx1d4anljzcz2ppy4ivpxg";
  +    sha256 = "0mdbg2sq56nv0hx0rrcbgrv1lv89nqc6cqigivgk665hhjm4v5kq";
   
       extraPostFetch = ''
         mv $out ./all
  
positive.code: 
    src = fetchurl {
      url = "https://download.electrum.org/${version}/Electrum-${version}.tar.gz";
      sha256 = "06ml9lwa5k2dp56sm5s7dsl6qirqmgim7rn853cqcq9n45z41437";
    };
  
    postUnpack = ''
  
negative.code: }:
  
  let
    version = "4.0.6";
  
    # electrum is not compatible with dnspython 2.0.0 yet
    # use the latest 1.x release instead
  