JSHeroes 2026

Caching, Payloads, and Other Dark Arts: Optimizing UX in Suboptimal Conditions

This talk breaks down real world data fetching challenges at scale and how to solve them with modern patterns like the BFF layer, granular payload shaping, prefetching, and critica…

How Not to Use TanStack Query

Three years ago, I was a state management skeptic. Too much boilerplate, business logic buried in side effects, vendor lock-in for life. So when I started my own app, I went with R…

Making sense of frontend code with forensic techniques

In projects with hundreds of thousands of lines, it is easy to lose track of code, architecture and quality. Are we still on the right track, are we blocking ourselves with interna…

The power of managed effects

Side effects are often the root of complexity, making our code difficult to test and reason about. But what if we could treat those effects as data? Enter managed effects: a functi…

Making Waves with the Web

What’s in a waveform? How can we derive “do re mi” from only digits? Can synthetic sounds sing us a story? In this talk, we’ll use the WebAudio API and the library Tone.js to expl…

25 years of embracing the weird

I strongly believe we’ll never run out of wonky things we can do with JavaScript. Here’s a few of mine. They’re an entertaining way to show some niche corners of JavaScript and rei…

The Cognitive Load Crisis: How Modern Web Systems Burn Out Teams

Modern web systems are more powerful than ever, yet development teams are increasingly overwhelmed. As architectures grow more complex, developers face fragmented tools, constant c…

Digital Preservation and Cyberpunk for Front-end Developers

The time traveller's guide to JavaScript

With JavaScript turned 30 last year, it feels like a good time to look back at where we came from, and look forward to where we might be heading. In this nostalgic talk, Phil will …