\documentclass[]{osgdoc}

\usepackage{enumitem}
\usepackage{fontspec}
\usepackage{fontawesome5}
\usepackage{tagdirtree}
\usepackage[
languages={de,en},
map={de=german,en=english},
targetlang={job=3},
load babel
]{langselect}
\usepackage{hologo}
\usepackage{subcaption}
%\usepackage{osgdoc}

\setlength\emergencystretch{3em}

\newarg{\aarg}{<}{>}
\newarg[\code]{\Aarg}{<}{>}
\colorlet{linkblue}{blue!50!black}
\newcommand{\osglecture}{\textcolor{teal!75!black}{OSG Lecture}}
\newcommand{\OLLM}{\textcolor{teal!75!black}{\sffamily OLLM}}
\RenewDocumentCommand \tagdirtreedirectoryicon { }
  {\makebox[1.25em][c]{\textcolor{blue!65!black}{\faFolder}}}
\RenewDocumentCommand \tagdirtreefileicon { }
  {\makebox[1.25em][c]{\textcolor{blue!45!black}{\faFile}}}
\RenewDocumentCommand \tagdirtreearchiveicon { }
  {\makebox[1.25em][c]{\textcolor{blue!65!black}{\faFileArchive}}}
\RenewDocumentCommand \tagdirtreefilename { m }
  {\texttt{#1}}
\RenewDocumentCommand \tagdirtreedirectoryname { m }
  {\texttt{\bfseries #1}}
\RenewDocumentCommand \tagdirtreearchivename { m }
  {\texttt{\itshape #1}}
\RenewDocumentCommand \tagdirtreeannotation { m }
  {\hfill\textcolor{black!55}{\normalfont #1}}
\NewDocumentCommand \manualdirtreeellipsis { m }
  {\item[]\makebox[1.25em][c]{\textcolor{black!45}{\ldots}}%
   \hfill\textcolor{black!45}{\normalfont #1}}
\NewDocumentEnvironment{manualdirtree}{}
  {\begin{tcolorbox}[
     colback=blue!2,colframe=blue!60!black,boxrule=.5pt,
     arc=0pt,left=6pt,right=6pt,top=5pt,bottom=5pt]
   \begingroup\footnotesize
   \setlist[itemize]{nosep,leftmargin=1.7em,label={}}
   \begin{tagdirtree}}
  {\end{tagdirtree}\endgroup\end{tcolorbox}}

\hypersetup{
  pdftitle  = {OSG Lecture Bundle - Benutzerhandbuch},
  pdfauthor = {Matthias Werner},
  colorlinks,
  linkcolor = linkblue,
  urlcolor  = linkblue
}
\author{Matthias Werner}
\title{\ldeen{Das OSG Lecture Bundle}{The OSG Lecture Bundle}}
\subtitle{\ldeen{Benutzerhandbuch}{User Manual}}
\KOMAoptions{parskip=half,toc=indented}

\begin{document}
\maketitle

\begingroup
\parskip=2pt
\tableofcontents
\endgroup
\captionsetup{font=footnotesize,labelfont=bf,textfont=sf,skip=2pt}

\include{olm-intro}
\include{olm-tutorial}
\include{olm-concepts}
\include{olm-content}
\include{olm-series}
\include{olm-standalone}
\include{olm-config}
\include{olm-ollm}
\end{document}