Launch HN: SST (YC W21) – A live development environment for AWS Lambda

Hi HN, we are Jay and Frank and we are working on SST ( https://github.com/serverless-stack/serverless-stack ). SST is a framework for building serverless apps on AWS. It includes a local development environment that allows you to make changes and test your Lambda functions live. It does this by opening a WebSocket connection to your AWS account, streaming any Lambda function invocations, running them locally, and passing back the results. This allows you to work on your functions, without mocking any AWS resources, or having to redeploy them every time, to test your changes. Here's a 30s video of it in action — https://www.youtube.com/watch?v=hnTSTm5n11g For some background, serverless is an execution model where you send a cloud provider (AWS in this case), a piece of code (called a Lambda function). The cloud provider is responsible for executing it and scaling it to respond to the traffic. While you are billed for the exact number of millisec