ExtendDB: Open Source Amazon DynamoDB Compatible Adapter with Pluggable Storage Backends

AWS announced ExtendDB, an open source DynamoDB-compatible adapter that uses PostgreSQL as its initial storage backend. Developers can use DynamoDB APIs with alternative storage systems without changing existing SDKs or tools. The project allows running DynamoDB-style workloads outside native DynamoDB while keeping compatibility with current applications. ExtendDB provides flexibility for teams looking to avoid AWS DynamoDB while maintaining API consistency. The adapter supports existing workflows and tools without requiring modifications.