Jan Ziemba
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janziemba.bsky.social
Jan Ziemba
@janziemba.bsky.social
Senior React Native Developer 📱 8 Years of Building Mobile Apps 🛒 ReactNativeStore.com 🇨🇿 Based in Czechia
I’ve just launched my first AI-based app 🚀 An audio guide that works anywhere in the world, speaks fluently in the 6 most widely spoken languages, plus Czech, and lets you choose from 3 different guide personalities.
iOS: apps.apple.com/us/app/anywh...
Android: play.google.com/store/apps/d...
‎Anywhere Audio Guide
‎Explore by walking, not planning. No planning. No searching. No sign-ups. This app is your effortless travel companion. Just open the app, press play, and start walking. Based on your location, it p...
apps.apple.com
April 14, 2025 at 6:20 AM
Happy birthday, @reactnative.dev! 🎂🥳
March 26, 2025 at 9:08 PM
And I’ve just submitted another proposal for a conference talk! This time I want to get for free to mdevcamp.eu and my talk is called 'What You Can’t Do with Swift or Kotlin, but I CAN with React Native' 😜
mDevCamp 2025: 11th International Conference for Mobile Developers
Join the 11th International Conference for Mobile Developers on June 2-3, 2025, at Holešovice Market. Connect, learn, and experience the future of mobile development!
mdevcamp.eu
February 28, 2025 at 11:03 PM
I just submitted my first talk proposal for a conference ever! It’s called Visual Intelligence with React Native Vision Camera. Is it going to be good enough for App.js Conf? We’ll see!
February 24, 2025 at 3:22 PM
I’ve just released my second tutorial, this time on creating animated buttons in React Native! 🚀 Feel free to check it out, leave a comment, and share it with your colleagues. Thanks a lot! 🙏 #reactnative #expo #react #reactjs #reanimated #animation #codingtutorial #mobile #jsx youtu.be/36FX6zWT5Zc
10 Animated React Native Buttons You’ll Love
YouTube video by Jan Ziemba
youtu.be
January 31, 2025 at 4:48 PM
I've published my very first tutorial on YouTube! If you’re interested in React Native, I’d appreciate it if you could check it out, comment, or share it with others who might find it helpful. Thank you!🙏 #reactnative #expo #react #reactjs #codingtutorial #mobile #jsx www.youtube.com/watch?v=NH21...
The ONLY React Native Button You Will EVER Need
YouTube video by Jan Ziemba
www.youtube.com
January 8, 2025 at 12:55 PM
So, can I call myself a YouTuber now?
The Only React Native Button You Will Ever Need
YouTube video by Jan Ziemba
youtu.be
January 4, 2025 at 11:47 AM
I just tried replacing all my FlashLists with FlatLists (yes, you read that right). The result? 60 FPS! 🚀 Even in a country list with flags and ~200 items. So, what’s the point of FlashList anyway? Sometimes it feels like it causes more problems than it solves. Was something fixed in React Native?
December 17, 2024 at 1:47 PM
I’m finally using the React Compiler and the new architecture in production in one of my React Native apps 🤩 I don’t notice much of a difference because it was already fast enough 😁 I can’t wait to try it in more complex apps!
December 14, 2024 at 1:07 PM
I have completely rewritten my RN app, both frontend and backend, over a single weekend. See my LinkedIn post: www.linkedin.com/posts/janzie...
Jan Ziemba on LinkedIn: From over-engineered 🐢 to streamlined 🏎️ Last year, I built a mobile…
From over-engineered 🐢 to streamlined 🏎️ Last year, I built a mobile app and its backend in just two weeks of after-hours work. The stack included Expo…
www.linkedin.com
December 2, 2024 at 9:07 PM
Have you already tried Unistyles? You definitely should! I use it in one of my apps in production and I love it. There is a new version and it's huuuge!
Introducing Unistyles 3.0! ✨

After months of development, I’m excited to present the brand-new version of Unistyles. We’ve shipped a ton of new features that will redefine how you build your React Native applications. 🧵
November 29, 2024 at 9:47 PM
I just bought lifetime access to AnimateReactNative.com by @mironcatalin.bsky.social, one of the most inspiring figures in the React Native community. I am excited to dive deeper into animations in RN and make my apps even more engaging and fun to use! 🤩
AnimateReactNative.com - Premium and Custom React Native animations.
AnimateReactNative.com - Premium and Custom React Native animations.
AnimateReactNative.com
November 29, 2024 at 6:52 AM