Optional: set up a local WP server. My preferred method is this Docker image

• Install gulp CLI npm install --global gulp-cli
• Install and activate Timber plugin
• Install and activate ACF plugin and enter Pro license key
• Copy .env.txt file to a .env file
  • Update the PORT variable to match the port your localhost is serving to
• If using modular templating: Once the admin is running, go to the custom fields and sync with the available groups in the acf-json directory.

• Start WP host server
• Run gulp watch in the command line from theme root

template-modular.php serves the modular.twig file which is associated with the modular flexible content field in the theme's ACF. To create a new module:

• Create a new ACF field group titled after your module e.g. BasicText
• Using the same module name, create a .twig file in the templates/modules directory e.g. _basicText.twig