anchor.diff:  
     postInstall = ''
       cp ${muttWrapper} $out/bin/mutt
  -    mv $out/share/doc/neomutt/mime.types $out/etc
       wrapProgram "$out/bin/neomutt" --prefix PATH : "$out/lib/neomutt"
     '';
   
  
positive.code:     done
  
      # allow neomutt to map attachments to their proper mime.types if specified wrongly
      substituteInPlace sendlib.c \
        --replace /etc/mime.types $out/etc/mime.types
    '';
  
    configureFlags = [
  
negative.code:   buildInputs = [
      cyrus_sasl gss gpgme kerberos libidn ncurses
      notmuch openssl perl lmdb
      mime-types
    ];
  
    nativeBuildInputs = [
  