run this command to install the required node package modules to set up the local dev environment
npm install autoprefixer browser-sync cssnano gulp gulp-concat gulp-imagemin gulp-postcss gulp-sass gulp-uglify run-sequence
run this command to start the server, build and watch
npm start
run this command to build and compile src files to dist
gulp build
*see gulpfile.js for details on how the server and build are configured