React Berlin Meetup: Building Cross-Platform Applications and more!

Hi friends,

To attend the meetup please ➡️➡️➡️ REGISTER HERE ⬅️⬅️⬅️ via Guild.

On May 19, join us for an evening with the community — we’ll dive into scaling frontend architectures, the reality of “write once, run everywhere,” and lessons from building cross-platform applications in production.

🗣 Call for Proposals Have an idea or story to share? Submit your talk proposal through our CFP form and take the stage at one of our upcoming meetups!

🤝 Organized by This event made possible thanks to the support from React Summit, JSNation and React Day Berlin organizers – GitNation.

🤝 Sponsored by Huge thanks to our friends from Enpal! At EnpalTech we’re driving Enpal’s mission to revolutionize sustainable energy. Our team builds innovative applications that enhance every stage of the customer journey, from sales to energy management. With Enpal’s Energy Platform and Virtual Power Plant, we integrate decentralized energy sources to create a smarter, more efficient grid, accelerating the transition to renewable energy. We deliver impactful solutions — from operational software in Enablement Platform to appointment management in CraftOS — and stay agile to ensure renewable energy is accessible to all. Enpal Teams: Software Engineering

🕑 Event Schedule 18:30 - Doors open - snacks, beer, socialization 19:00 - Intro and announcements 19:10 - From One App to Many: Scaling Frontend with Domain‑Driven Architecture - Natalia Dmitrieva 19.35 - The Fourth Platform: How Vega Got Us Surprisingly Close to "Write Once, Run Everywhere" - Bogdan Plieshka 20:00 - Break with drinks 20:15 - React Native in 2026: Not Your Daddy’s React Native - Conor Lamb 20:40 - Networking, Open Mic Lightning Talks Mingle until 21:30pm

🗣️ Talks ➡️ From One App to Many: Scaling Frontend with Domain‑Driven Architecture - Natalia Dmitrieva How we transformed a React monolith into multiple apps inside one codebase. You always start small: one product, one team, one stakeholder. But once you succeed and need to scale, your original frontend architecture might not be ready for what comes next. As our Sales Process Orchestration Platform expanded to support multiple products and sales channels, our original monolithic application became a bottleneck. In this talk, I'll share how we transitioned to a domain‑driven, multi‑app architecture while deliberately keeping a single React codebase. You'll see how we applied Domain‑Driven Design concepts on the frontend, structured clear boundaries between sales channels, and used Nx to orchestrate builds, enforce architecture rules, and keep teams moving independently without losing shared foundations.

➡️ React Native in 2026: Not Your Daddy’s React Native - Conor Lamb React Native has changed a bunch, and if you haven't looked at it lately you're in for some fun. We'll walk through building a real app with (my beloved 😍) Expo. Talk about project setup to app store submission with detours into AI-assisted development and ofc, talk about the casual masochism that is mobile dev.

➡️ The Fourth Platform: How Vega Got Us Surprisingly Close to "Write Once, Run Everywhere" - Bogdan Plieshka "Write once, run everywhere" is a promising goal in software development, but one that often breaks down under real-world problems. At Zattoo, building streaming applications across Android, Apple, and Web meant years of separate native stacks that were not aligned, and therefore did not scale. This talk explains how moving to a multiplatform architecture, enabled by Vega as a fourth (React Native first platform), brought us very close to achieving that goal.

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