If you have a purchased theme, it already comes with a skeleton structure, so that you can start directly from there. Skeleton is a folder structure created using react-script with minimal files from the full version to get started. It has all the dependencies preloaded in
package.json so you do not need to add any additional dependency unless needed from your side. It has a sample page to get started; With that, Routes, menus, styles, configuration, and many other things have already been set into that which saves ample no. of hours to set up a new project. Isn't it cool and time-savvy?