AWS releases official local emulator for testing its services without a paid API key

AWS has released an official emulator that lets developers run tests against a local clone of its various services without provisioning a paid API key. The emulator is written in Rust and accumulated 29,684 commits in the project's first three weeks, according to a guest post by Swaminathan (Swami) Sivasubramanian on Werner Vogels' blog. It currently requires Docker on macOS and Windows, and Simon Willison hopes a single downloadable binary will follow for use in standard test suites on other platforms and languages.