Schedule

React Query is a popular library for managing asynchronous state—most often state returned from data fetching. Its popularity has grown significantly over the past few years, with nearly 20% of all React applications now using it.In this talk, maintainer Dominik will explore the other side—the less favorable aspects of React Query and situations where it may not be the best fit. No library is perfect; every choice involves trade-offs. By the end of this talk, you'll have a better understanding of React Query's limitations and why it remains a compelling choice despite them.

Web and Mobile are getting closer and closer in the React ecosystem. With the launch of Expo Router and React Strict DOM in the last year, the message is clear: Web and mobile can no longer be separated. The React Core Team and community have been working silently in the background on this project, and there have been RFCs to bring Web APIs to Native, and make the RN event loop closer to the web.This is great for developers - suddenly React devs can “learn once, write once, and run anywhere”, and can target web, iOS, and Android (and even more) from a single codebase. You might be thinking: is this just a pipe dream, and will the reality live up to the expectation of “writing once” for every platform?

Achieving high-performance reactivity in React without compromising the developer experience has always been a key challenge. When building real-time applications designed to display hundreds of millions of rows without noticeable lag, fine-grained reactivity is essential. But when I started my journey at Pigment, neither Recoil, Jotai, nor Zustand were mature enough, and React Compiler was not yet a thing. Let's explore together how we managed to ingest, display, and update huge datasets seamlessly without sacrificing the developer or the user experience.

Our quest to make our product faster and more performant forced us to reevaluate our state management solution. Unfortunately more than once: in the span of two years we migrated from Redux to Zustand to Jotai then back to Zustand (this time with some fancy tricks) and then finally to a custom solution. Should you do the same to figure out which library fits your use case best? Is a custom solution really necessary?

The web is capable of way more than we might think. During this talk, we'll explore some lesser known parts of the web. Did you know you can control the web via webHID or send and receive notes to devices via webMIDI? In this interactive talk we might make some music together, by controlling synthesisers and exploring the wide range of strange web API's.

In this talk, we explore the application of React Server Components (RSC) to elevate the functionality and efficiency of forms. We will touch upon the core principles of RSC and their specific benefits for form development, such as improved load times and streamlined server-side processing. Additionally, we’ll learn the latest advancements in React 19 and the introduction of multiple new hooks.Attendees will gain insights into practical strategies for integrating RSC into forms, focusing on enhancing user experience and reducing front-end complexities.

Everyone has heard of feature flags: boolean switches in your code that you can flip at runtime for different users, environments, etc. But they are just one part of a much broader best practice called “application configuration”. Big tech companies like Meta and Google have internal tools for structured, type-safe app configuration that help them accelerate development of products and backend services. This talk dives into what app configuration is and how it can empower your whole team to move faster, including your nontechnical colleagues.

We’ll explore the latest in web performance, examining how sites fare in speed and efficiency. Discover the impact of performance optimisations and the innovations driving the fastest web experiences today. From lazy loading to efficient rendering, we'll uncover what sets high-performing sites apart in the ever-evolving digital landscape.We'll also turn our attention to the web’s environmental impact, discussing the growing awareness of its carbon footprint and the steps being taken toward more sustainable practices. Alongside this, we’ll delve into the adoption of cutting-edge technologies like HTTP/3, Progressive Web Apps (PWAs), and modern JavaScript frameworks.

Maybe you don't know what React Flight is, but you probably heard something about React Server Components instead.Do you want to understand how RSCs work? My advice is to start from the new communication protocol behind it, whose name is, guess what, React Flight.In this talk I will show, step by step, how this protocol enables some of the most interesting RSC features (SSG, SSR, streaming content, server and client components, etc.), at the same time revealing some unexpected surprises: for example, did you know that you can use RSC without a server?

This is the full story behind "Make Real", tldraw's viral AI experiment that lets you turn your low fidelity drawing into a functional website. It's half startup rollercoaster ride and half moral tale about betting on React — as Make Real was only possible because of the ability to put any React component onto tldraw's canvas.Here's the full behind-the-scenes perspective, and everything we learned along the way.

I’ve done https://fframes.studio/ — it is an open source video creation framework in Rust, but the previewer of the video generated content is implemented in React and allows to render 120fps video rendering using Rescript and Rust (compiled to wasm).In this presentation l’ll show how make these languages best friends and make them superpower react for unbelievable performance.

Signals have recently become a popular concept. Their ideas are based on the functional reactive programming (FRP) approach, which has been leveraged in the industry for a while. I would like to share how someone can build an architecture based on signals and React and how we have used FRP at Grammarly for quite some time. The talk aims to showcase the foundational principles of observables and how to structure applications based on FRP ideas.

I used to be a hip-hop artist with an album under Universal Music, songs on MTV, a Nike deal, and a track on PlayStation’s SingStar. But after a while, I realized that being an artist wasn’t my true calling. As an introvert, I decided to explore a new direction in life.In this talk, I'll share how hip-hop has shaped my journey into the world of design and coding. Although I don’t see myself as a developer in the traditional sense, the DIY culture of hip-hop encouraged me to give coding a shot.