nodejs/node ? reverse-engineered prompt

Build me a JavaScript runtime from scratch, basically a new version of Node.js. I want to be able to run JavaScript code directly on my computer or a server, not just in a browser. It should be built around a fast JS engine like V8 and use an event-driven, non-blocking approach so it's good at handling lots of simultaneous operations, like for a web server.

It needs to be cross-platform, so it should have build configurations for Windows, macOS, and Linux. Please include a standard library that provides core utilities for things like interacting with the file system, handling HTTP requests, and managing streams of data. The goal is to create a complete, open-source runtime environment. Feel free to use the existing Node.js project for architectural guidance.