Setup

npm install -g gulp or yarn global add gulp (You can skip this step if you already have gulp installed)

npm install or yarn

gulp

Available gulp tasks

gulp js - compile JS with inline source maps
gulp scss - compile SCSS with inline source maps
gulp build - compile production ready JS & CSS (minified & autoprefixer)
gulp watch - watch for files changes
gulp proxy - run BrowserSync without a server, you need to modify browserSyncProxy setting
gulp php - (default task) run the server and watch for files changes