JSNation US 2025

As AI coding assistants like Cursor, Cline and Copilot revolutionize software development, a new reality emerges: while these tools excel at generating boilerplate and routine functions-roughly 70% of coding work-they struggle with the crucial final 30% that transforms a basic solution into production-ready software. This talk explores how developers can adapt to this paradigm shift by strategically embracing AI for what it does best while doubling down on uniquely human skills. Drawing from industry leaders' insights, we'll examine why AI struggles with essential complexity like system architecture, edge cases, and maintainability, and how developers can position themselves as indispensable collaborators rather than competitors with AI. Whether you're a senior architect seeking to amplify your impact or a junior developer navigating this rapidly evolving landscape, you'll leave with practical strategies to elevate your craft beyond what AI can generate. Learn how to transform from code writers to systems thinkers, becoming "power users" who leverage AI as a force multiplier while maintaining ownership of the engineering decisions that matter most.

Frontend frameworks are increasingly converging, not just in features like Signals or first class TypeScript support, but also in shared tooling. Vite now powers most ecosystems, and meta-frameworks increasingly rely on Nitro and other unified layers.In this talk, we’ll look at the next phase of this convergence: the rise of Rust-powered tooling that will improve our workflows. Up first is Rolldown, a next-gen bundler offering not only speed or compatibility with Rollup, but also advanced optimization features like granular chunk control. Another tool, actually a set of tools that is part of the equation is Oxc, the Oxidation Compiler, a modular toolchain for parsing, transforming, minifying, but also linting and formatting JavaScript - at scale.You’ll leave with a clearer picture of where frontend tooling is heading and how you can adopt these tools today to benefit of the out-of-the-box performance and advanced features.

We all have those repetitive web tasks we wish would just handle themselves – sorting through data, extracting information from multiple pages, or customizing content for different audiences. What if your JavaScript application could do this autonomously, right in the browser?This talk demonstrates how to create intelligent AI agents in JavaScript that eliminate tedious tasks without sending sensitive data to the cloud. We'll combine modern web technologies with client-side AI techniques like RAG (Retrieval-Augmented Generation) and function calling to build applications that understand content, make decisions, and take actions based on user goals.