Developer Builds Framework-Free Node.js API to Understand What AI-Generated Code Actually Does

A developer has launched Nexus API, a personal open-source project built using native Node.js capabilities rather than popular frameworks like Express or NestJS. The project was motivated by a growing concern that AI code-generation tools are producing fast results without ensuring developers understand the underlying mechanics. Rather than relying on AI to write and run code directly, the author uses it as a supplementary tool after first attempting problems independently. The project explores foundational concepts such as raw HTTP handling, manual routing, dependency injection, and layered architecture without framework abstractions. The goal is not to replace modern frameworks but to make using them a fully informed, conscious engineering decision.