RDS

Common workarounds to extend DynamoDB (OpenSearch sync, RDS dual-write, Athena/Glue, Streams) introduce additional costs ($200-$1000/month), failure modes, operational overhead, and require specialized expertise. They essentially negate DynamoDB's simplicity benefit.

Traditional database setups (like RDS instances) are often not connected to the internet by default, making it extremely difficult to connect serverless compute platforms like Cloudflare Workers to them. This creates a significant operational burden for modern development workflows.

Deploying an app requires managing resources scattered across different AWS console sections (S3, CloudFront, Route 53, EC2/Fargate/Lambda+API Gateway, RDS/DynamoDB, billing alarms). These services don't integrate well out-of-the-box, forcing context switching and manual coordination.