cloudy-node

cloudy-node is a TypeScript and ESM runtime for Node.js (>= 14.18) that uses esbuild under the hood to transpile TypeScript on the fly. Current stable version is 0.0.81. It is a fork of esno with a key differentiator: the esbuild target is set to es2022 instead of es2019, avoiding problematic helper generation that breaks Pulumi function serialization and enabling top-level await support (e.g., for AWS Lambda Node.js 14). It provides a CLI command and a Node --loader hook for seamless execution of .ts files. Compared to ts-node or tsx, it is more lightweight and focuses on esbuild speed, but may have fewer features and less community support.