Nowadays most of our code is opensource, and we use a large amount of it in our systems. But we need to keep an eye on those opensource components, as new vulnerabilities are discovered every day. What happens if we let our guard down? And what can we do to avoid it? In this presentation we take a look at a simple RCE vulnerability, how it can be exploited, sending pure (?) JSON to a server, in order to take control of it, in a live demo. After explaining what's happening, we then take a look at a free plugin to use directly in our IDE to prevent this, giving the power back to developers!

React 19.2 just landed, and it’s not just another version bump — it’s a real upgrade for how we build apps. From smoother background updates with Activity, cleaner side effects with useEffectEvent, to smarter server-side handling with cacheSignal, React 19.2 is all about making your code faster, cleaner, and easier to understand.

In this talk, we’ll walk through the new features, what problems they solve, and how you can use them right away in your projects. We’ll also look at Performance Tracks in Chrome DevTools — a new way to actually see how your app performs under the hood.

Whether you’re a beginner or an experienced React dev, you’ll walk away knowing how to use these tools to write less buggy code, improve app speed, and enjoy coding with React a little more.