\documentclass[12pt,a4paper]{article}
%Font settings
\usepackage[default]{sourcesanspro}
\usepackage[T1]{fontenc}

%Support for German
\usepackage[utf8]{inputenc}
\usepackage{ngerman}

%Support for images
\usepackage{graphicx}

%Support for Code Snippets and Syntax Highlighting
\usepackage{listings}
\usepackage{color}
\usepackage{sourcecodepro}
\definecolor{mygreen}{rgb}{0,0.6,0}
\definecolor{mygray}{rgb}{0.5,0.5,0.5}
\definecolor{mymauve}{rgb}{0.58,0,0.82}
\lstset{
  basicstyle=\ttfamily,
  language=bash,
  breaklines,
  literate={ö}{{\"o}}1
           {ä}{{\"a}}1
           {ü}{{\"u}}1,
  captionpos=b,                    % sets the caption-position to bottom
  commentstyle=\color{mygreen},    % comment style
  escapeinside={\%*}{*)},          % if you want to add LaTeX within your code
  keywordstyle=\color{blue},       % keyword style
  stringstyle=\color{mymauve},     % string literal style
  showstringspaces=false,          % Removes the strange symboles where spaces are
}

% Listing with a box around it
\usepackage[most]{tcolorbox}
\newtcblisting{sexylisting}[2][]{sharp corners, 
    fonttitle=\bfseries, colframe=gray, listing only, 
    listing options={basicstyle=\ttfamily,language=bash}, 
    title=\thetcbcounter #2, #1}
%\begin{sexylisting}{Some Code}
%\end{sexylisting}{Some Code}


%Document information
\title{}
\author{Andreas Zweili}

\begin{document}
\begin{titlepage}
    \begin{center}
        \huge\bfseries{Titel}
    \end{center}
\vfill
%\includegraphics{titelbild.png}
\end{titlepage}

\newpage
\tableofcontents
\newpage

\bibliographystyle{plain}
\bibliography{bibliography} 
\end{document}