At Square most of the applications run in the datacenters and this project allows AWS Lambda instances to seamlessly call into the datacenters -- basically developers can break out part of their apps and deploy them as Lambdas.<p>This is a deep-dive on the mTLS set-up for Lambdas, but for general overview check out <a href="https://developer.squareup.com/blog/enabling-serverless-applications-at-square/" rel="nofollow">https://developer.squareup.com/blog/enabling-serverless-appl...</a>