To achieve this, leverage AWS Lambda for backend logic (e.g., order processing, loyalty programs), Amazon API Gateway for RESTful endpoints, and DynamoDB for serverless data storage. Use Amazon S3 for static frontend hosting (e.g., a React-based café menu), and AWS Cognito for user authentication. Event-driven workflows can be handled via Amazon EventBridge (e.g., triggering inventory updates on new orders), while AWS Step Functions orchestrates multi-step processes like payment validation → order fulfillment. For real-time updates (e.g., kitchen displays), use WebSockets via API Gateway. This setup eliminates server management, scales automatically during peak hours, and reduces costs via pay-per-use pricing.