CTF-All-In-One/tex/config/layout.tex

\usepackage{ifthen}

% page dimensions
%--------------------------------------
% see https://de.sharelatex.com/learn/Page_size_and_margins
\ifthenelse{\equal{\CONFIGOneTwoSided}{oneside}}
    {
        \usepackage{geometry}\geometry{
            a4paper, % a4 size 210x297 mm
            left=35mm,
            right=20mm,
            top=35mm,
            bottom=25mm,
            footskip=10mm,
            headheight=20mm % required for header
        }
    }
    {
        \usepackage{geometry}\geometry{
            a4paper, % a4 size 210x297 mm
            twoside,
            left=35mm,
            right=20mm,
            top=35mm,
            bottom=25mm,
            footskip=10mm,
            headheight=20mm % required for header
        }
    }
%--------------------------------------

% reduce chapter margin
\renewcommand*{\chapterheadstartvskip}{\vspace*{0mm}}

% Multi line comments
%--------------------------------------
\usepackage{verbatim}
%--------------------------------------

% font
%--------------------------------------
\usepackage{fontspec}
\setmainfont[ExternalLocation=fonts/Roboto/,
    BoldFont = Roboto-Bold.ttf,
    ItalicFont = Roboto-Italic.ttf ,
    BoldItalicFont = Roboto-BoldItalic.ttf]{Roboto-Regular.ttf}
% language Japanese
    %--------------------------------------
    \usepackage{xeCJK}
    \setCJKmainfont[ExternalLocation=fonts/NotoSansCJKSC/,
        BoldFont = NotoSansCJKsc-Bold.otf]{NotoSansCJKsc-Regular.otf}
    %--------------------------------------

% set line height/spacing
\renewcommand{\baselinestretch}{1.5}

\ifthenelse{\equal{\CONFIGLanguage}{DE}}
    {
        % German hyphenation
        \usepackage[ngerman]{babel}
        \usepackage{csquotes}
    }{}
%--------------------------------------

% Remove indentation
%--------------------------------------
\parindent0pt
%-------------------------------------

% Landscape
%--------------------------------------
\usepackage{pdflscape}
%--------------------------------------

% dictionary
%--------------------------------------
\input{dictionary/dictionary}
%--------------------------------------

% colors
%--------------------------------------
\usepackage[table]{xcolor}
\input{config/colors}
%--------------------------------------

% images
%--------------------------------------
\usepackage{graphicx}
% \input{config/images}
%--------------------------------------

% Tables
%--------------------------------------
\usepackage{longtable}
% alternate rowcolors for all long-tables
\let\oldlongtable\longtable
\let\endoldlongtable\endlongtable
%--------------------------------------

% date
%--------------------------------------
\usepackage[yyyymmdd]{datetime}
% format date
\renewcommand{\dateseparator}{--}
%--------------------------------------

% Header & footer
%--------------------------------------
\usepackage{fancyhdr}
\usepackage{lastpage}
\usepackage{etoolbox}
%--------------------------------------

% Enable linking e.g. for table of contents
%--------------------------------------
\usepackage{hyperref}
\urlstyle{rm}
%--------------------------------------

% Listings - e.g. List of code snippets
%--------------------------------------
\usepackage{listings}
% load style
\input{config/lstdefinestyle}
% init file variables
%\input{config/snippets}
%--------------------------------------

% Abbreviations
%--------------------------------------
\usepackage[printonlyused]{acronym}
%--------------------------------------

% Bibliography/References 
%--------------------------------------
\usepackage[
    backend=biber,
    style=numeric,
	sorting=ynt
	% citestyle=chicago-authordate
 ]{biblatex}
% define reference resource
\addbibresource{base/bibliography/references.bib}
%--------------------------------------

% Index
%--------------------------------------
\usepackage{imakeidx} 

% uncomment to at numbering
%\indexsetup{level=\chapter} 

% Activate index commands
\makeindex
%--------------------------------------

% Appendix
%--------------------------------------
\usepackage{appendix}
\usepackage[german]{minitoc}
\usepackage{titletoc}
%--------------------------------------