anchor.diff:  
       src = fetchurl {
         url = "https://raw.githubusercontent.com/scalacenter/bloop/v${version}/etc/zsh/_bloop";
  -      sha256 = "09qq5888vaqlqan2jbs2qajz2c3ff13zj8r0x2pcxsqmvlqr02hp";
  +      sha256 = "1xzg0qfkjdmzm3mvg82mc4iia8cl7b6vbl8ng4ir2xsz00zjrlsq";
       };
   
       phases = [ "installPhase" ];
  
positive.code: { stdenv, lib, fetchurl, coursier, python, makeWrapper }:
  
  let
    baseName = "bloop";
    version = "1.3.4";
    nailgunCommit = "d7ed5db"; # Fetched from https://github.com/scalacenter/bloop/releases/download/v${version}/install.py
  
    client = stdenv.mkDerivation {
      name = "${baseName}-client-${version}";
  
      src = fetchurl {
        url = "https://raw.githubusercontent.com/scalacenter/nailgun/${nailgunCommit}/pynailgun/ng.py";
        sha256 = "0lrj25m0nvphz2i5mqjwccpyrd7gn8a5k22k5khrpdh6ldxqis8a";
      };
  
      phases = [ "installPhase" ];
  
      installPhase = ''cp $src $out'';
    };
  
    server = stdenv.mkDerivation {
  
negative.code: stdenv.mkDerivation {
    name = "${baseName}-${version}";
  
    phases = [ "installPhase" ];
  
    installPhase = ''
      mkdir -p $out/bin
      mkdir -p $out/share/zsh/site-functions
  
      ln -s ${server}/blp-server $out/bin/blp-server
  
      ln -s ${zsh} $out/share/zsh/site-functions/_bloop
      ln -s ${client}/.bloop.aux $out/bin/bloop
    '';
  
    meta = with stdenv.lib; {
  