Forgive my ignorance but is this similar to SAM, from their docs:
> 'Use SAM CLI to step-through and debug your code. It provides a Lambda-like execution environment locally and helps you catch issues upfront. '
For example, if your Lambda function publishes to a SNS topic that invokes another Lambda function. You can only test this locally my mocking the inputs for the first one, testing that. And repeating it for the second one.
With SST, it deploys this stack to AWS. So when you trigger this workflow, both the Lambda functions get invoked on your local machine. You don't need to mock anything. It is as if they were invoked live.