This folder /dev is only needed to (re)create minified css and js files. ======================================================== IT IS SAFE TO DELETE IT IF YOU DO NOT INTEND TO DO THIS. ======================================================== Instructions to (re)create minified css and js files: ===================================================== You need to install NodeJS and npm: https://docs.npmjs.com/downloading-and-installing-node-js-and-npm 1. Open Command Line or Windows Power Shell (Windows users) or Terminal (MacOS users) 2. Navigate to ../enfold/dev folder Due to the size of the folder dev/node_modules we removed this from the github repo. Always run the following command before starting a gulp command: 3. npm install 4. Minify the files using one of the following commands: - gulp minifyEnfold ( ---> minifies all files ) - gulp minifyEnfoldCSS - gulp minifyEnfoldJS - gulp deleteEnfold ( ---> deletes all minified files) - gulp deleteEnfoldCSS - gulp deleteEnfoldJS ----------------------------------------------------------------------------------------------------------- In case you want to create a bundled file and avoid to run npm install and the node_modules directory: Check webpack.config_bundle_gulp.js ------------------------ @since 5.5 supports ES6 syntax (use of "gulp-terser") https://www.npmjs.com/package/gulp-terser