Łukasz Chludziński is a software engineer at Callstack, working hands-on with teams to ship reliable React Native apps across platforms. He's passionate about making cross-platform development smoother — especially when it comes to testing, performance, and making things just work regardless of where the app runs. Łukasz brings a practical, no-fluff approach to solving real-world engineering problems, and shares what he learns through talks and his podcast, React Universe On Air.
So you've heard of React Native, Flutter, maybe even SwiftUI — but what about Lynx.js, the new UI framework coming out of Bytedance (yep, the company behind TikTok)? Over the past few months, I've been diving into Lynx.js, building real apps with it, and learning where it shines… and where it still makes you want to scream into a pillow. In this talk, I'll share: • What Lynx.js actually is, and why Bytedance/TikTok are betting big on it • The developer experience (good, bad, and "wait, what just happened?") • How it handles cross-platform UI at massive scale • Lessons I learned as a newcomer — so you don't make the same mistakes Whether you're curious about the next wave of front-end frameworks, or just want to know what TikTok is running under the hood, you'll leave with a solid picture of Lynx.js and a few laughs along the way.
This session aims to equip developers with a systematic approach to troubleshooting and refining their React projects, ensuring a smoother, faster user experience. We'll cover 5 important stages for any performance optimization project.
Do you like squeezing performance improvements out of your react components? Do you obsessively count and recount the number of renders? Are your colleagues driving you crazy, when they submit a broken PR to your meticulously optimized state-of-the-art functionality? ReAssure can help with that! Reassure is an Open Source library developed and maintained by the Callstack team. Story behind, how it works and some tasty details.
WarsawJS Workshop
