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: { stdenv, fetchFromGitHub, which, autoreconfHook, makeWrapper, writeScript,
  ncurses, perl , cyrus_sasl, gss, gpgme, kerberos, libidn, notmuch, openssl,
  lmdb, libxslt, docbook_xsl, docbook_xml_dtd_42, mime-types }:
  
  let
    muttWrapper = writeScript "mutt" ''
  