This repository is forked and somewhat heavily modified from https://github.com/kourgeorge/arxiv-style.
The default version of preprint-template.tex optionally uses arara directives to automate compilation. Arara is probably already included in your TeX distribution (TeX Live or MiKTeX). To use arara with TexShop, move
~/Library/TeXShop/Engines. To make this the default, you can also set
Command Listed Below>