Understanding LocalStack

Learn how LocalStack emulates services and runs your serverless applications.

The documents in this section are dedicated to the internals, the configuration options, and the limitations of LocalStack.
The following figure shows an overview of the covered topics:

Overview of LocalStack internals


Environment variables which affect LocalStack.

Lambda Executor Modes

Overview of the different Lambda execution modes

Persistence Mechanism Configuration

How the LocalStack persistence mechanism works and how you can configure it.

LocalStack Limitations

Known limitations of LocalStack and its services