SST is a framework for deploying applications into a cloud environment along with provisioning all the services that the application needs to run. SST is not just an IaC tool; it's a framework with a TypeScript API that enables you to define your application environment, a service that deploys your application when triggered on a Git push as well as a GUI console to manage the resulting application and invoke the SST management features. Although SST was originally based on AWS Cloud Formation and CDK, its latest version has been implemented on top of Terraform and Pulumi so that, in theory, it's cloud agnostic. SST has native support for deploying several standard web application frameworks, including Next.js and Remix, but also supports headless API applications. SST appears to be in a category of its own. While it bears some resemblance to platform orchestration tools like Kubevela, it also provides developer conveniences like a live mode that proxies AWS Lambda invocations back to a function running on the developer's local machine. Right now, SST remains a bit of a curiosity, but it is a project and part of a category of tools worth watching as it evolves.
