\documentclass{tudelft-report}
%% Set up the bibliography
\usepackage{biblatex}
\addbibresource{report.bib}
%% Additional packages and commands
\usepackage{parskip}
\setlist{itemsep=-2pt} % Reducing white space in lists slightly
\renewcommand{\deg}{\si{\degree}\xspace} % Use \deg easily, everywhere
%% ----------------------------------------------------------------------
%% Begin of document + Frontmatter (Roman page numbering)
%% ----------------------------------------------------------------------
\begin{document}
\frontmatter
%% Define the main parameters
\title{A Title to the Report}
\subtitle{A Catchy Optional Subtitle \\ that Grabs the Attention}
\author{Author}
\subject{AB1234: Optional Course Name} % Cover only
\affiliation{Delft University of Technology} % Cover only
\coverimage{figures/cover.jpg} % Aspect ratio of 2:3 (portrait) recommended
\definecolor{title}{HTML}{4884d6} % Color for cover title
\makecover
\input{frontmatter/title-report}
\input{frontmatter/preface}
\input{frontmatter/summary}
\tableofcontents
%\listoffigures
%\listoftables
\input{frontmatter/nomenclature}
%% ----------------------------------------------------------------------
%% Mainmatter (Arabic page numbering)
%% ----------------------------------------------------------------------
\mainmatter
\input{mainmatter/introduction}
\input{mainmatter/chapter-2}
\input{mainmatter/chapter-3}
%\input{mainmatter/chapter-4} % Create file to add
\input{mainmatter/conclusion}
%% Prevent urls running into margins in bibliography
\setcounter{biburlnumpenalty}{7000}
\setcounter{biburllcpenalty}{7000}
\setcounter{biburlucpenalty}{7000}
%% Add bibliography
\printbibliography[heading=bibintoc,title=References]
%% ----------------------------------------------------------------------
%% Appendix (Letters for chapters)
%% ----------------------------------------------------------------------
\appendix
\input{appendix/appendix-a}
\input{appendix/appendix-b}
%\input{appendix/appendix-c} % Create file to add
\end{document}