composer require limelyltd/module-image-engine:dev-master
php bin/magento module:enable Limely_ImageEngine
php bin/magento setup:upgrade
php bin/magento setup:di:compile
Go to admin area, navigate to Stores > Configuration. Then change scope to the website view you'd like set up for.
Navigate to Limely > ImageEngine. Set enabled to Yes & add full URL of engine URL. Eg: https://images.limely.co.uk