\documentclass[10pt,a4paper]{book}
\usepackage{src/kzo-thesis}

\title{KZO LaTeX Vorlage}
\author{Beat Jäckle (Jb)}
\date{\today}
\supervisor{Michael Bürgisser}
\project{Maturitätsarbeit}

\begin{document}
\begin{titlepage}
\maketitle
\end{titlepage}
\include{kapitel/030_abstract}
\include{kapitel/100_installation}

% include
% Much more tipps: https://github.com/oetiker/lshort
\end{document}