idealo, Europe's largest price comparison site, faced challenges with a complex Java codebase and slow deployments due to contributions from multiple teams. In late 2023, a PoC team modernized the frontend with React and implemented Micro Frontends to give teams ownership of their components. We chose Astro for its speed, cost-effectiveness, and decentralized development capabilities, and have now created a functional micro-frontend template that many teams are using across the company.
This talk is about the technical solution of how we chose a framework that would meet all of our needs. Our requirements: Faster or similar response times; Acceptable costs; Allows decentralized development.

React 18 introduces the React Compiler, a powerful tool for optimizing component rendering and enhancing performance. In this talk, we'll explore how the compiler works, demonstrate practical performance improvements, and show you how to integrate these optimizations into your projects. Whether you're working on new or existing applications, you'll leave with actionable insights to harness the full potential of React 18.

In this talk we will examine the state of deploying web apps with React Native web. To meet modern standards, we will use NextJS to deploy to web and Expo to build the native app. In addition, we will take a look how much code can be shared between these two platforms and how easily set a project up.

We will also take a look at cross platform component libraries and libraries that you will be using along the way.
This setup is great for any dev who wants to deploy to multiple platforms, but only wants to write his code once.