\documentclass[oneside,final,12pt]{book}

\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{xunicode}
  \usepackage{verbatim}

\usepackage{hyperref}
\usepackage{xstring}
\def\rooturl{https://www.math.bgu.ac.il/}
\hyperbaseurl{\rooturl}
\let\hhref\href
\providecommand{\extrahref}[2][]{\LTRfootnote{\LR{\IfBeginWith*{#2}{http}{\nolinkurl{#2}}{\nolinkurl{\rooturl#2}}}}}
\renewcommand{\href}[2]{\IfBeginWith*{#1}{http}{\hhref{#1}{#2}}{\hhref{\rooturl#1}{#2}}\extrahref{#1}}

\usepackage{polyglossia}
\usepackage{longtable}
%% even in English, we sometimes have Hebrew (as in course hours), and we
%% can't add it in :preamble, since it comes after hyperref
%%\usepackage{bidi}
\setdefaultlanguage{hebrew}
\setotherlanguage{english}
%%\setmainfont[Script=Hebrew,Ligatures=TeX]{Libertinus Serif}
\setmainfont[Script=Hebrew,Ligatures=TeX]{LibertinusSerif}[
  UprightFont = *-Regular,
  BoldFont = *-Bold,
  ItalicFont = *-Italic,
  BoldItalicFont = *-BoldItalic,
  Extension = .otf]

%%\newfontfamily{\hebrewfonttt}{Libertinus Serif}
\newfontfamily{\hebrewfonttt}{Liberation Serif}
\SepMark{‭.}
\robustify\hebrewnumeral
\robustify\Hebrewnumeral
\robustify\Hebrewnumeralfinal

% vim: ft=eruby.tex:



\begin{document}
\pagestyle{empty}
\pagenumbering{gobble}


\begin{center}
  \vspace*{\baselineskip}

  {\Large מתמטיקה, בן-גוריון}

  \vspace*{\baselineskip}

  \rule{\textwidth}{1.6pt}\vspace*{-\baselineskip}\vspace*{2pt}
  \rule{\textwidth}{0.4pt}\\[\baselineskip]

  {\Huge  OAOT}\\[0.5\baselineskip]
  {\Large מפגשים בסמסטר 21--2020--ב}


  \rule{\textwidth}{0.4pt}\vspace*{-\baselineskip}\vspace{3.2pt}
  \rule{\textwidth}{1.6pt}\\[\baselineskip]


\end{center}


% vim: ft=eruby.tex


\vfill
הסמינר מתכנס בימי \emph{שלישי}, בשעות \LR{\emph{14:30--15:30}}, \textbf{\LRE{Online}} (אלא אם צויין אחרת)


% vim: ft=eruby.tex


\end{document}

% vim: ft=eruby.tex: