anchor.diff:      lparallel
       mk-string-metrics
       parenscript
  +    plump
       quri
  +    serapeum
       sqlite
       str
       swank
       trivia
       trivial-clipboard
  +    trivial-types
       unix-opts
     ];
   
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "next";
    version = "1.3.4";
  
    src = fetchFromGitHub {
      owner = "atlas-engineer";
      repo = "next";
      rev = version;
      sha256 = "00iqv4xarabl98gdl1rzqkc5v0vfljx1nawsxqsx9x3a9mnxmgxi";
    };
  
    nativeBuildInputs = [
  
negative.code:     cl-annot
      cl-ansi-text
      cl-css
      cl-json
      cl-markup
      cl-ppcre
  