composer require vendorname/module-name
# Authentication required (repo.magento.com)
# Get your Magento Marketplace authentication keys or use these: 
# Username: 7c018006799466c681ad507e27904677
# Password: 289077c86e811661a8f7751828485d3a
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy