#030 - The Future of Backend JavaScript with a Node.js Maintainer: Matteo Collina

The podcast begins with a casual introduction of Mateo Kalina, a prominent figure in the Node.js community, highlighting his background in software engineering, his role as CTO of Platformatic, and his significant contributions to Node.js with a staggering record of over 17 billion downloads from 500 NPM modules. Mateo's expertise and experiences are set to provide great insights into the future of backend development.

Mateo discusses his position on the Node.js Technical Steering Committee (TSC), emphasizing the collaborative nature of maintaining Node.js. He explains the volunteer-based structure of Node.js, how one can become a collaborator, and the importance of open-source contributions for new developers. The TSC plays a critical role in providing technical direction and resolving disagreements among the numerous collaborators.

The conversation shifts towards the growth and current state of Node.js. Mateo expresses his concerns about some APIs that were developed too quickly without proper iteration, leading to suboptimal practices. He argues for the importance of thoughtful API design and the challenges of maintaining legacy code in a fast-evolving environment.

Mateo strongly advocates for new developers to engage with existing open-source projects rather than solely working on personal projects. He explains how contributions provide valuable feedback and experience, significantly improving coding skills through peer reviews. He also addresses the common apprehension newcomers might have about being qualified to contribute.

In a technical discussion, Mateo compares Node.js with other backend technologies like Python and Ruby. He highlights NPM's vast ecosystem as a key advantage of Node.js. The conversation also covers JavaScript's event-driven architecture and how Node.js is adept at handling I/O-bound tasks, distinguishing it as a preferable choice for certain applications.

Mateo introduces Platformatic, his startup aimed at simplifying API development in Node.js. He explains that Platformatic is built on top of Fastify and offers a unique solution for quickly building APIs while maintaining performance and flexibility. The platform is designed to cater to both solo developers and teams, emphasizing the need for efficient backend development.

The episode wraps up with Mateo sharing his unpopular opinions on TypeScript and its implementation in web development. He argues against strict type safety for application-level developers, suggesting that it may lead to wasted time instead of focusing on shipping features. Mateo also cautions against tightly coupling client and server code via shared types due to potential complications as projects grow.