CodingCat.dev Podcast 5.9 - Running the Cloud on Your Desktop with LocalStack
Oct 12, 2025
In this engaging discussion, Brian Rinaldi, a developer and member of the LocalStack team, delves into the benefits of running AWS-compatible services locally. He shares insights on LocalStack’s container-based architecture, highlighting faster deployment times and cost savings. Brian demos setting up S3 buckets and Lambda functions, showcasing how easy it is to manage APIs with API Gateway. He also explains how LocalStack can enhance developer workflows and encourages experimentation, making it a game-changer for local development.
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LocalStack Achieves Near-Parity For Core AWS
- LocalStack reproduces many AWS services locally, giving close parity for commonly used ones like S3 and Lambda.
- Parity varies by API surface, so some services are near-identical while others are partial implementations.
Choose Docker And Pick The Right LocalStack Tier
- Run LocalStack inside Docker and choose free or paid images depending on needed services.
- Use the paid version for extras like debugger, hot reload, and chaos engineering when you need advanced dev tooling.
Test Failure Modes Locally With Chaos Engineering
- Use LocalStack to simulate outages, latency, and other failure scenarios with chaos engineering.
- Test resilience early so your app handles real-world packet loss and latency before deployment.