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