anchor.diff:        --replace "ack_cmd=ack"       "ack_cmd=${silver-searcher}/bin/ag" \
         --replace "tree_cmd=tree"     "tree_cmd=${tree}/bin/tree" \
         --replace "man_cmd=man"       "man_cmd=${man}/bin/man" \
  +      --replace "git_cmd=git"       "git_cmd=${git}/bin/git" \
         --replace "pandoc_cmd=pandoc" "${pandocReplacement}"
       mv memo $out/bin/
       mv doc/memo.1 $out/share/man/man1/memo.1
  
positive.code: 
    name = "memo-${version}";
  
    version = "0.5";
  
    src = fetchFromGitHub {
      owner  = "mrVanDalo";
      repo   = "memo";
      rev    = "${version}";
      sha256 = "1kq8hmq4lgvkk717nhmdryr90g61xm0jm7y8dzya8jsxsn531gm8";
    };
  
    installPhase = let
  
negative.code: { fetchFromGitHub, silver-searcher, tree, man, stdenv,
    git,
    pandocSupport ? true, pandoc ? null
    , ... }:
  
  