2.1 File structure

All content should go either in main.tex (single file), or in separate .tex files located in the same folder as main.tex. If using separate sub-files, they should be included into main.tex using \input{}, as is done in this document. Sub-files should not have \begin{document} or \end{document} commands.

The main.tex template uses the book document class; therefore, the levels of sectioning available are \part, \chapter, \section, …. If you prefer to use article as the document class, then you should use the code in main-article.tex  instead.

You can use preamble/custom.tex to complement the template preamble with any additional packages, macros, custom environments, and so on.