Do you have examples of which AWS "Lego blocks" are not convenient and reusable? For me, the convenient "Lego blocks" that I use a lot include CloudFront (web

Do you have examples of which AWS "Lego blocks" are not convenient and reusable? For me, the convenient "Lego blocks" that I use a lot include CloudFront (web server/CDN), S3 (file/web server), ACM (certificate manager), DynamoDB (NoSQL database), Firehose (message batching and storage), SQS/SNS (queuing and publish/subscribe), Step Functions (low-code business logic), Lambda (event-driven custom code execution) and API Gateway (REST API / WebSocket service). It is very rare to need to run any self-managed servers any more with all these services available.