diff --git a/Ausarbeitung/aspdoc.cls b/Ausarbeitung/aspdoc.cls
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+% aspdoc.cls
+% Written by Alexis Engelke in 10/2018
+% Copyright (c) TUM I10 2018. All rights reserved.
+
+% Options:
+%  - course: erap, asp, [rasp]
+%      For course=rasp/asp/erap \ifasp is defined.
+%  - tasksheet
+%      Defines solution environment, defines \theSheetNumber
+%  - project
+%      Enhances content of header, defines \theTaskNumber and \theName
+
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesClass{aspdoc}[2021/10/05 ASPDOC document class v0.5]
+
+\LoadClass[11pt]{scrartcl}
+
+\RequirePackage{kvoptions}
+\RequirePackage[utf8]{inputenc}
+\RequirePackage[T1]{fontenc}
+\RequirePackage[ngerman]{babel} % TODO: Make this an option
+\RequirePackage[babel,german=quotes]{csquotes}
+\RequirePackage{amsmath}
+\RequirePackage{graphicx}
+\RequirePackage{color}
+\RequirePackage{listings}
+\RequirePackage{booktabs}
+\RequirePackage{float}
+\RequirePackage{microtype}
+\RequirePackage{tikz}
+\RequirePackage{tabularx}
+\RequirePackage{hyperref}
+\RequirePackage{xstring}
+\RequirePackage[headsepline,footsepline,plainfootsepline,markcase=upper]{scrlayer-scrpage}
+
+\usetikzlibrary{shapes,positioning}
+
+\SetupKeyvalOptions{
+  family=aspdoc,
+  prefix=aspdoc@
+}
+
+% Fonts
+\setkomafont{dictum}{\normalfont\normalcolor\rmfamily\small}
+\renewcommand{\rmdefault}{ppl}
+\newcommand{\tttilde}{\raise.17ex\hbox{$\scriptstyle\mathtt{\sim}$}}
+
+\definecolor{dkgreen}{rgb}{0,0.6,0}
+\definecolor{gray}{rgb}{0.5,0.5,0.5}
+\definecolor{mauve}{rgb}{0.58,0,0.82}
+
+\newcommand{\@maintitle}{\large\@title \\ \@date}
+\newcommand{\@headertitle}{\@title}
+
+\newif\if@solution
+
+\DeclareVoidOption{tasksheet}{
+    \IfSubStr{\jobname}{\detokenize{Lsg}}{
+      \@solutiontrue
+      \StrBetween*[2,3]{\jobname}{\detokenize{_}}{\detokenize{_}}[\sheetNumberRaw]
+    }{
+      \StrBehind*[2]{\jobname}{\detokenize{_}}[\sheetNumberRaw]
+    }
+    % Remove a single leading zero
+    \IfBeginWith{\sheetNumberRaw}{0}{%
+      \StrGobbleLeft{\sheetNumberRaw}{1}[\theSheetNumber]%
+    }{%
+      \global\let\theSheetNumber\sheetNumberRaw%
+    }
+    %
+    \newcommand{\secprefix}[1]{\setcounter{section}{0}\def\thesection{##1\theSheetNumber.\arabic{section}}\renewcommand*{\theHsection}{ch##1.\the\value{section}}}
+    %
+    \title{Arbeitsblatt \theSheetNumber}
+    \renewcommand{\@headertitle}{Blatt \theSheetNumber}
+}
+\DeclareVoidOption{project}{
+    \StrGobbleLeft{\jobname}{5}[\theTaskNumber]
+    \renewcommand{\@maintitle}{\large\@title {} (A\theTaskNumber)\\ Projektaufgabe -- Aufgabenbereich \@subtitle}
+    \renewcommand{\@headertitle}{Projektaufgabe A\theTaskNumber}
+    \newcommand{\theName}{\@title}
+}
+\DeclareStringOption{course}
+\ProcessKeyvalOptions*\relax
+
+\IfEq{\aspdoc@course}{rasp}{\IfSubStr{\jobname}{\detokenize{ASP}}{\def\aspdoc@course{asp}}{\def\aspdoc@course{gra}}}{}
+\IfEqCase{\aspdoc@course}{%
+    {asp}{\newif\ifasp\asptrue%
+        \newcommand{\@courselong}{\vspace{-.2em}Aspekte der systemnahen Programmierung\\bei der Spieleentwicklung}%
+        \newcommand{\@courseshort}{Praktikum ASP}
+        \newcommand{\raspi}{\textit{Raspberry Pi 3}\,}
+        \newcommand{\raspis}{\textit{Raspberry Pi 3}\,}
+        \newcommand{\board}{\raspi}
+        \newcommand{\boards}{\raspis}}%
+    {erap}{\newif\ifasp\aspfalse%
+        \newcommand{\@courselong}{Grundlagenpraktikum: Rechnerarchitektur}%
+        \newcommand{\@courseshort}{Praktikum GRA}}%
+    {gra}{\newif\ifasp\aspfalse%
+        \newcommand{\@courselong}{Grundlagenpraktikum: Rechnerarchitektur}%
+        \newcommand{\@courseshort}{Praktikum GRA}}%
+    {eragp}{%
+        \newcommand{\@courselong}{Großpraktikum Rechnerarchitektur}%
+        \newcommand{\@courseshort}{Großpraktikum ERA}}%
+    {erat}{%
+        \newcommand{\@courselong}{Übungen zu Einführung in die Rechnerarchitektur}%
+        \newcommand{\@courseshort}{Übung ERA}}%
+}[
+    \newcommand{\@courselong}{\textit{Lehrveranstaltung}}
+    \newcommand{\@courseshort}{\textit{Veranstaltung LV}}
+]
+
+% Solution environment for task sheets
+\newenvironment{solution}{%
+  \if@solution\itshape\bfseries\else\setbox\z@\vbox\bgroup\fi%
+}{%
+  \if@solution\else\egroup\fi%
+}
+
+\pagestyle{scrheadings}
+\clearscrheadfoot
+\ihead{\rmfamily\normalcolor \@courseshort{} -- \@headertitle\headmark}
+\if@solution\chead{\textbf{Lösung}}\fi
+\ohead{\pagemark}
+
+\lstset{ %
+  language=C,
+  basicstyle=\upshape\footnotesize\ttfamily,
+  numbers=left,                   % where to put the line-numbers
+  numberstyle=\tiny\color{gray},  % the style that is used for the line-numbers
+  numbersep=5pt,                  % how far the line-numbers are from the code
+  showstringspaces=false,
+  frame=single,                   % adds a frame around the code
+  rulecolor=\color{black},
+  tabsize=2,                      % sets default tabsize to 2 spaces
+  captionpos=b,                   % sets the caption-position to bottom
+  breaklines=true,                % sets automatic line breaking
+  breakatwhitespace=false,        % sets if automatic breaks should only happen at whitespace
+  title=\lstname,                 % show the filename of files included with \lstinputlisting;
+  belowskip=-0.8 \baselineskip,   % avoid blank line after listing
+                                  % also try caption instead of title
+  keywordstyle=\color{blue},      % keyword style
+  commentstyle=\color{dkgreen},   % comment style
+  stringstyle=\color{mauve},      % string literal style
+  escapeinside={\%*}{*)},         % if you want to add LaTeX within your code
+  literate={ö}{{\"o}}1
+           {ä}{{\"a}}1
+           {ü}{{\"u}}1
+           {~}{{\tttilde}}1
+           {:)}{{\rotatebox{270}{\hspace{-.5em}\rmfamily :)}}}2
+}
+
+% Clear author macro so that we can check whether an author is set
+\def\@author{}
+\renewcommand{\maketitle}{
+    \begin{center}
+    \small\textsc{Lehrstuhl für Rechnerarchitektur und Parallele Systeme}\\[.4em]
+    {\Large\bfseries\@courselong}\\[.7em]
+    \begin{tabular}{c}\@maintitle\end{tabular}
+    \ifdefempty{\@author}{}{\\[1em]\begin{tabular}{c}\@author\end{tabular}}
+    \end{center}
+}
+
+\endinput%