\documentclass[open=any, listof=leveldown, DIV=classic]{scrbook}
\usepackage[french]{babel}

\usepackage{fontspec}
\setmainfont{Old Standard}
\addtokomafont{disposition}{\rmfamily}

\usepackage{csquotes}
\usepackage[font=footnotesize, rightmargin=0pt]{quoting}
\usepackage[svgnames]{xcolor}
\usepackage{needspace}

\usepackage{graphicx}
\graphicspath{{images/}}

\usepackage[french]{varioref}
\usepackage{imakeidx}

\usepackage[unicode=true]{hyperref}
\hypersetup{colorlinks,allcolors=blue,linktocpage}
\usepackage{hyperxmp}
\usepackage{uri}
\usepackage[type={CC}, modifier={by-sa}, version ={3.0}]{doclicense}
\author{Robert Alessi}
\lowertitleback{\footnotesize\textcopyright{} 2018 Robert Alessi
  \mailto[courses]{robert.alessi@cnrs.fr}
  \doclicenseThis}
\usepackage{widows-and-orphans}
\WaOsetup{avoid-all}

\usepackage{microtype}