React Universe Conf 2024

Over 600 React and React Native enthusiasts gathered in Wrocław in September 2024 to shape the future of the React Universe—and what an experience it was! Yes, it was technical. But it was also packed with energy, inspiration, and so much fun! Ready to join us next year? Secure your spot for the 2025 edition: 🎟 https://hubs.li/Q02WXrJJ0.

This is the Keynote talk presented at React Universe Conf 2024, the largest community conference that unites developers and thought leaders to explore trends, share insights, and push the boundaries of React and React Native. 🗣 Speakers' Bios Kris Lis, CEO of Calllstack. Michał Pierzchała , Head of Technology at Callstack. Passionate about building mobile and web experiences, high quality JS tooling and Open Source. Core React Native Community & Jest contributor. Space exploration enthusiast. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZhC_0 Check out more about React Universe Conf: https://hubs.li/Q02R34T10 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

This talk was presented at React Universe Conf 2024, the largest community conference that unites developers and thought leaders to explore trends, share insights, and push the boundaries of React and React Native. 🗣 Speakers' Bios Nicola Corti is a Google Developer Expert for Kotlin. He has been working with the language since before version 1.0, and he is the maintainer of several open-source libraries and tools for mobile developers. He's currently working in the React Native Core team at Meta, building one of the most popular cross-platform mobile framework. Furthermore, he is an active member of the developer community. His involvement goes from speaking at international conferences to being a member of CFP committees and supporting developer communities across Europe. In his free time, he also loves baking, podcasting, and running. Riccardo is a Software Engineer with 7 years of experience in iOS development. He joined Meta and the React org in March 2022. Since then he mainly worked on the Open Source build system for iOS and on the rollout of the New Architecture in the Open Source. In his free time, he writes technical articles on Swift, runs, plays tennis and drums. Get your ticket for React Universe Conf 2025: https://hubs.li/Q02VZhH20 Check out more about React Universe Conf: https://hubs.li/Q02R35cY0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

What's new from the React DevX team? We've been hard at work on improving the core debugging experience in React Native, and we're excited to share our updates. In this talk, we'll present our holistic approach to the debugger and the significant architecture changes made in the last year. We'll tour the new experience coming to users, and share a small peak into our future roadmap. 🗣 Speaker Bio Alex Hunt is a Software Engineer at Meta working on React Native Developer Experience. He is passionate about developer tooling and productivity. Prior to Meta, Alex worked in several product teams and startups making use of React Native, which he hopes will keep him looking at problems from a user's perspective as he writes less and less UI! In his free time, he enjoys rock climbing, snowboarding, investing, plugging Notion, and learning Japanese. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZhP40 Check out more about React Universe Conf: https://hubs.li/Q02R35kx0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

The network that stands between our server and the client is what causes the most complexity in our development process. Whether it be the initial UI we generate on the server, the API calls we make as the user navigates around, or the form submissions our user makes, keeping the application responsive and up-to-date is a massive chore. 🗣 Speaker Bio Kent C. Dodds is a world renowned speaker, teacher, and trainer and he's actively involved in the open source community as a maintainer and contributor of hundreds of popular npm packages. He is the creator of EpicWeb.dev, the Epic Stack, EpicReact.dev, and TestingJavaScript.com. He's an instructor on egghead.io and Frontend Masters. He's also a live streamer, podcaster, and conference organizer. Kent is married and the father of five kids. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZhTC0 Check out more about React Universe Conf: https://hubs.li/Q02R35kx0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Thanks to web browsers, JavaScript is everywhere, even on Apple's not (yet) released extended reality headset. But wouldn’t it be more fun to run JS natively, without the browser, with unlimited access to this new platform capabilities of spatial computing? Yes it would! And thanks to React Native it turned out easier than I thought (yet still very challenging). And with this talk I want to share my journey and ideas for the future. 🗣 Speaker Bio Senior software engineer at Callstack, mainly focusing on building React Native apps. Besides that, he's an open source enthusiast developing and maintaining my macOS Menubar app called "Minisim" and other open-source libraries from the React Native ecosystem. For the past few months, he's been working full-time on bringing React Native to visionOS. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZh-Y0 Check out more about React Universe Conf: https://hubs.li/Q02R35tL0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Spoiler: the new architecture! You’ve probably heard about the React Native New Architecture for mobile, but did you know that the New Architecture works on desktop as well? In this talk we will cover what the new architecture brings for desktop development, discuss why building native apps can be better for your users on the 1.5+ billion desktop devices, and share more info about the future of React Native for Desktop. 🗣 Speakers' Bios Saad is a Senior Software Engineer at Microsoft, working on Office for macOS and iOS. He maintains React Native macOS, ensuring quality cross-platform user experiences and platform excellence on macOS. Steven is a Senior Product Manager at Microsoft where he works on the Windows Developer Experiences and Platforms team. Steven is focused on enabling the huge ecosystem of React and React Native developers to bring their experiences to desktop and unlocking the superpowers of the native Windows platform. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj0K0 Check out more about React Universe Conf: https://hubs.li/Q02R35vB0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Over the last 6 years we at Klarna have been building several React and React Native apps from the same codebase. We’ve scaled to 500 contributors per month, 85 million app downloads, and 30 million monthly active users. It’s been a wild ride and in this talk you will hear all about the challenges we faced, mistakes we made, and most importantly what we’ve learned from them. 🗣 Speaker Bio Mike Duminy is a Principal Engineer and Architect at Klarna, where he works on scaling React Native. He has been building React Native apps for the last eight years. He spent several years in startups, fostering pragmatism while resisting the lure of perfectionism. Ever curious, he enjoys exploring new ideas, solving problems, gaming, tackling coding challenges, engaging in philosophical discussions about language, and reading sci-fi/fantasy. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj3b0 Check out more about React Universe Conf: https://hubs.li/Q02R35wc0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Going back to kindergarten - instead of crayons and hand-paint, we’ll be using VisionCamera and Skia. In this talk we’ll build a React Native app that can blur faces in a 60 FPS Camera stream by just using JavaScript. We’ll be going over the technical challenges, the underlying C++/GPU-based implementation, and the possibilities this exciting new VisionCamera V4 feature now unlocks. 🗣 Speaker Bio Marc Rousavy is CEO at Margelo, a high-end React Native app development agency. Marc is also a React Native core contributor and maintainer of a lot of popular open-source libraries in the React Native ecosystem. He has been working a lot on the native side, building view components like react-native-vision-camera or react-native-blurhash, and C++/JSI-based libraries like react-native-mmkv or react-native-quick-crypto. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj3N0 Check out more about React Universe Conf: https://hubs.li/Q02Rc6s90 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

The React Native New Architecture is finally here! But how “new” is it? The story of the New Architecture goes back to 2018 when it was first introduced at Meta, and has been available as experimental since React Native 0.68 with continued improvements in every subsequent release. Thet erm New Architecture refers to a significant rewrite of the React Native internals, with a new renderer and a new native module system which allows us to finally sunset the bridge. It's hard to change the engine while flying the plane, right? Especially if your plane is the React Native ecosystem with thousands of libraries and millions of developers out there. So much has changed for the New Architecture from 0.68 till today, and in this talk we will explore the recent enhancements to New Architecture and demonstrate how easily you can migrate your apps & libraries. It’s finally time to unveil the curtain on the journey from introducing the New Architecture to enabling the New Architecture by default for everyone. 🗣 Speaker Bio Arushi Kesarwani is a Software Engineer at Meta working on React Native Industry Alignment pillar to bring the New Architecture to open source. She is also passionate about enhancing developer experience and tooling. Prior to Meta, Arushi was a full-stack developer at Microsoft, contributing to Bing UX. In her spare time, you can find her either traveling or running. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj4J0 Check out more about React Universe Conf: https://hubs.li/Q02R35zF0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Our goal is to deliver high-quality experiences as quickly as possible. What if you want to change the UI immediately, without even waiting for an OTA update? There is a simple technique that is under-explored in our community: React Server-Defined Components (RSDC). We are introducing a new library to accelerate your implementation of RSDC. It’s time to explore the applications of this technique: we can control large-scale art installations, build industry-ready media streaming apps, and deliver mini-apps without writing any client code at all! 🗣 Speakers' Bios Mike Grabowski: Developer Experience is my passion. React Native Core Contributor. In the past, I worked on “react-native link”, “auto-linking” and the CLI. When not coding, I am probably on a race track! Eric Vicenti: Creator of React Navigation, and formerly on the React Native team at Facebook, Eric Vicenti is dedicated to simplifying full-stack app development for our community. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj5w0 Check out more about React Universe Conf: https://hubs.li/Q02R361J0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

In this talk, we will explore the creation of a real-time data visualization globe using React, based on the 2023’s Black Friday Cyber Monday (BFCM) project at Shopify. We will cover architectural design, layers handling, interactivity, 3D rendering, lighting techniques and some animations using React and React libraries to create a dynamic, multi platform user experience where responsiveness and performance are paramount. 🗣 Speaker Bio Monica is a Software Engineer with a deep passion for mobile development and React Native, who enjoys solving complex problems, building new things, and making an impact through technology. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj5-0 Check out more about React Universe Conf: https://hubs.li/Q02R35XR0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

With the abundance of React Native performance improvements that the core teams have been consistently introducing into the core libraries, the overall user experience of apps built with RN continues to approach the performance of traditional native applications. With that said, as UX and UI designers push the boundaries of designing advanced features and functionality, app performance problems on low performing devices, especially targeting TV models such as the FireTV Stick Gen 2, become significantly more pronounced and common place as an application grows. Understanding how to investigate and diagnose react native performance problems in the JavaScript layer will allow you to become an invaluable asset to your development team and organization as a whole, ultimately delivering more value to your end users and a performant app experience that will not be forgotten. This talk will focus on how to become the go-to JS Performance Expert on your team, by providing you with the investigatory techniques of performance profiling using the Hermes JS Profile tooling centered around RN TV application development. Additionally, there will be a focus on how investigating performance using Hermes JS Sample Profiling correlates with JS architectural choices that are made during your React Native app development, in order to improve your architecture to prevent common performance problems. 🗣 Speaker Bio Mike Khirallah is a Seasoned React expert, adopting React when it first was released in 2013 and has been enjoying building React apps ever since. Today, Mike is the Senior Director of Engineering at DirecTV, leading the BYOD multi-platform React Native TV, Mobile/Tablet, and Web streaming application development. Prior to DirecTV, Mike led many software engineering teams across multiple different tech spaces, including FinTech, InsurTech, EdTech, and HEOR. During his time mentoring and growing software engineering teams, he not only built advanced React and React Native applications, but also built out large scale distributed backend systems, including backend architectures that were responsible for secure, user-provided remote code execution, from scratch, systems similar to Kubernetes. After many years of contributing across the entire stack, Mike has come full circle in building out large scale React Native applications, now with a focus on streaming / TV platforms. Mike’s favorite areas of software development involve performance optimizations correlated with different architectural patterns. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj6K0 Check out more about React Universe Conf: https://hubs.li/Q02R36b-0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

The "use client" directive introduces a new dimension to bundling. Allowing developers to use the same language and JSX component model to write a single application that runs across the server and client, and replacing network synchronization code in multiple languages and frameworks with simple components and props. In this talk, we'll explore what use client is, why it exists, how it works, and clarify some common misconceptions. 🗣 Speaker Bio Delba de Oliveira works a Developer Advocate for Next.js. She's passionate about teaching web development and explaining complex web concepts through diagrams, animations, and docs. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj6R0 Check out more about React Universe Conf: https://hubs.li/Q02R36jy0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Migrating React websites to React Native is very challenging, but it doesn't have to be. The new Expo DOM Components feature enables you to incrementally migrate features from existing websites over to your mobile app, then adopt native features on a component-by-component basis. 🗣 Speaker Bio Evan Bacon, an artist and technologist. Currently building Expo Router, the universal React framework. He started working on the Expo project in 2017 with the goal to make mobile experiences easy to create, share, and discover. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj8j0 Check out more about React Universe Conf: https://hubs.li/Q02R36cP0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

This talk is a friendly introduction to the AT Protocol — a new internet protocol developed at Bluesky that aims to change the relationship between the user and the product. 🗣 Speaker Bio Dan got into programming after he accidentally discovered Visual Basic inside Microsoft PowerPoint. He has found his true calling in turning Sebastian’s tweets into long-form blog posts. Dan occasionally wins at Fortnite by hiding in a bush until the game ends. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZj8D0 Check out more about React Universe Conf: https://hubs.li/Q02R36kT0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

This talk was presented at React Universe Conf 2024, the largest community conference that unites developers and thought leaders to explore trends, share insights, and push the boundaries of React and React Native. 🗣 Speaker Bio Facebook. Working on a super secret project to speed up JS, previously Hermes JavaScript Engine, previously Bloomberg L.P. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02R36l80 Check out more about React Universe Conf: https://hubs.li/Q02R36l80 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

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. 🗣 Speaker Bio Aurora Walberg Scharff is a web developer from Norway. She holds a bachelor's degree in Robotics and Intelligent Systems, with knowledge of engineering mathematics, robotics, algorithms, data structures, and computer architecture. After working for a couple of years at a financial technology startup, she continues developing as a consultant at Inmeta. Aurora is actively building with React Server Components in her current consultancy project and is eager to share her knowledge. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZjct0 Check out more about React Universe Conf: https://hubs.li/Q02R36N-0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Once upon a time in React Native land, thousands of components lived in peace. All except one: an undying video player, its sound forever whispering in the app. A valiant team of developers embarked on a quest to defeat it; they journeyed through the valleys of Old Architecture and navigated the labyrinths of New Architecture, ultimately triumphing over the specter. What secrets did they uncover along the way? Listen to the tale of the Ghost Player to find out! 🗣 Speaker Bio Lead Software Engineer at BAM, a French mobile agency, Delphine uses React Native daily to build beautiful apps for various clients. She loves exploring the 'how-does-it-work-under-the-hood' aspects of tech, especially the native side of React Native. She also enjoys sketching, including live sketching during conferences, and is always up for a good karaoke song! Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZjbF0 Check out more about React Universe Conf: https://hubs.li/Q02R36Nx0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

In an era where user interface (UI) and smooth animations are not just features but necessities for mobile applications, the integration of Skia, an open-source 2D graphics library, with React Native opens new avenues for developers. This talk explores how Skia enhances React Native by offering superior performance and new capabilities in rendering animations and UI components. Attendees will learn about the technical synergies between React Native and Skia, see real-world examples of their application, and discover how to leverage these technologies to create visually stunning and highly performant mobile apps. 🗣 Speaker Bio Akshat Paul is the Founder and CTO of Company360, a technology leader, author of five books on React Native, AWS Amplify,Ruby, and RubyMotion, and a former consultant at McKinsey & Company. With his extensive experience in mobile and web development, coupled with his strategic insights gained at McKinsey, he has delivered numerous enterprise and consumer applications over the years. As an influential voice in the tech industry, Akshat frequently speaks at conferences and meetups on various technologies. Besides technology Akshat spends time with his family, is an avid reader, and is obsessive about healthy eating. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZjbN0 Check out more about React Universe Conf: https://hubs.li/Q02R36Dm0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

Apps aren’t always confined to one country or language. And if you’re already doing all the work of building out a whole app, why not expand your user base to the millions of non-English speakers? In this session I’ll show how internationalization (i18n) is more than just replacing translation strings, making your app accessible to a global audience, including the often-overlooked 750 million speakers of right-to-left (RTL) languages like Arabic, Hebrew, and Urdu. I’ll show you practical steps, compare the different i18n libraries, and talk about success stories — such as when my mom helped me translate our Ignite boilerplate project to Arabic. You’ll walk away with confidence and tools to expand your user base and stand out. 🗣 Speaker Bio Mazen Chami is a Senior Software Engineer with over 6 years of experience in React Native. Mazen is a co-host of the React Native Radio podcast and an expert in Ignite and open source development. In his free time, Mazen loves to play soccer and enjoys time outdoors with his wife and toddler. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZjcZ0 Check out more about React Universe Conf: https://hubs.li/Q02R36V50 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

This talk aims to delve into the Open Mobile Hub (OMH) SDK, showcasing its potential as a revolutionary resource for developers. Anchored by the Linux Foundation Europe, OMH is supported by a global network of founding members, highlighting its international impact and relevance in the developer community. 🗣 Speakers' Bios Preston Lau is the senior director of strategy & business development at Futurewei Technologies. In his current role, He is leading cross-functional strategies for AI machine learning and open source initiatives in support of the company growth in new markets & new innovative product areas. Earlier in his career, Preston worked for Google where he led Google’s strategic partnership development in the region and successfully established key relationships with renowned telecom operators and mobile manufacturers, as well as content developers to beef up Google’s service offerings around mobile, videos, maps and finance. From AI startup to billion-dollar corporations, he has accumulated 25 years of strategy & business development experience in hi-tech companies. He earned his Computer Science degree from the University of Wisconsin–Madison. Diego Zuluaga is the Solution Partner Director at OMH in Futurewei, with a rich background in developer relations, solutions engineering, and customer success. He has contributed to technologies such as Android, Google Assistant, and Google Cloud, and has been actively involved in open source projects. Diego's experience includes roles at Google and IBM, where he focused on improving developer tools and solution architecture for APIs and integration. His passion for unifying mobile platforms and enhancing developer tooling drives innovation and growth in his current role. Get your tickets for React Universe Conf 2025: https://hubs.li/Q02R36VT0 Check out more about React Universe Conf: https://hubs.li/Q02R36VT0 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_

What’s involved with running quality multi-device apps? Hear from Entertainment & media app builders on the challenges when building across Mobile, Web, and TV with React + React Native. We’ll cover common questions such as handling variable screen resolutions, supporting different modes of inputs, scaling issues during big events, and how performance optimization is key for delivering on both high end mobile devices to compact streaming media players. Whether you’re expanding an existing mobile app to the big screen or building a TV-first experience for your existing react site, this session will provide you with tips and best practices from peers that have been through it before. 🗣 Speakers Chris Trag, Mo Khazali, Michał Chudziak, Bart Widlarz, Arushi Kesarwani, Michael Khirallah Get your tickets for React Universe Conf 2025: https://hubs.li/Q02VZjNX0 Check out more about React Universe Conf: https://hubs.li/Q02R37640 Visit the organizer's website: https://hubs.li/Q02R39FR0 Follow us on X to stay up to date: https://x.com/reactuniverse_