React Universe On Air
Callstack
React Universe On Air is your go-to podcast about building cross-platform apps with React and React Native, featuring practical lessons, forward-looking ideas, and talks with industry leaders.
Episodes
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Aug 10, 2023 • 55min
Databases for Mobile Apps: React Native & Realm | React Universe On Air #25
✨ In September 2024, The React Native Show has become React Universe On Air ✨
Join Łukasz Chludziński (@loginlukasza) and Andrew Meyer (@takameyer) as they explore the realm (see what we’ve done there?) of databases for mobile applications, focusing specifically on React Native applications built with Realm & MongoDB.
In this episode, we cover the following topics:
• a brief history of mobile databases and the road from Nokia to Realm
• the overview of database options for mobile applications from the least to the most complex
• a deep–dive into Realm SDK for React Native, from benefits and use cases to features, usage details, and resources for developers
• future plans for Realm
You can find the resources mentioned in the episode on our website ➡️ https://hubs.li/Q01-GGVb0
If you enjoyed this episode, give it a thumbs-up on YouTube or rate it on a podcast app of your choice. We’re also counting on your feedback and suggestions for other topics to discuss on the podcast 🙌
Check out other episodes of our podcast 🎧 https://hubs.li/Q01ZKYd_0
Sign up for our newsletter for developers and tech leaders 📧 https://hubs.li/Q01ZKYf80
Follow us on Twitter 🐦 https://twitter.com/callstackio

Jul 24, 2023 • 1h 23min
React Native at scale with Jacob Suñol (Abbott) | React Universe On Air #24
✨ In September 2024, The React Native Show has become React Universe On Air ✨
Join us in this episode as we delve into the world of React Native at scale with Jacob Suñol, an expert in healthcare technology from Abbott. Discover how React Native tackles the unique challenges faced by large healthcare organizations, revolutionizing the way teams collaborate, scale, and develop innovative solutions.
In the second episode of the “React Native at scale” series, we explore the intersection of React Native and healthcare technology, uncovering the strategies and success stories shared by Jacob Suñol, Senior Director of Product Development at Abbott. Here's what you can expect to learn from our discussion:
1) Challenges faced by SMEs and enterprises in healthcare:
• Overcoming silos and fostering collaboration
• Agile transformation in large enterprises
• Strategies for scaling teams effectively
2) Engaging third parties and building tech partnerships
• Balancing in-house teams and external partnerships
• Choosing the right third-party tech partner
• Maintaining consistency and quality in outsourced React Native development
3) Open source and legal considerations
• Leveraging open source to boost organizational efficiency
• Fulfilling social responsibility through community contributions
• Legal constraints in the healthcare industry
4) Building Software as a Medical Device (SaMD) with React Native
• Navigating regulatory compliance in SaMD development
• Evaluating technology maturity in healthcare applications
• Performance in SaMD and React Native
Tune in to gain valuable insights from Jacob Suñol's experience and discover how React Native can revolutionize businesses at scale, particularly in the healthtech industry.
Ready to leverage the power of React Native at scale for your organization? Explore our comprehensive software consulting services and get in touch with us 👉 https://hubs.ly/Q01XL3S40
Check out other episodes of our podcast 🎧 https://hubs.li/Q01XL3Pf0
Sign up for our newsletter for developers and tech leaders 📧 https://hubs.ly/Q01XL3Pg0
Follow us on Twitter 🐦 https://twitter.com/callstackio

Jul 12, 2023 • 45min
Stack Overflow Developer Survey 2023 | React Universe On Air: Coffee Talk #12
✨ In September 2024, The React Native Show has become React Universe On Air ✨
In this episode, Jakub and Tomasz delve into the latest Stack Overflow Developer Survey, sharing our impressions and providing commentary on the findings. Join them as they explore the trends, preferences, and challenges faced by developers worldwide. Our hosts discuss it all, focusing particularly on things like:
online resources & courses to learn how to code
most popular technologies
cloud platforms
web frameworks and technologies
other frameworks and libraries
integrated developer environments
synchronous tools
AI search tools & developer tools
Is JavaScript still the most popular technology? Do programming pros and beginners love the same cloud platforms? Is jQuery a thing of the past? And who uses Whatsapp for work? Tune in to find answers to all these questions.
Enjoy the vibe? Join our team 🙌 https://hubs.li/Q01X6YQv0
Check out other episodes of our podcast 🎧 https://hubs.li/Q01X6YQt0
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Follow us on Twitter 🐦 https://twitter.com/callstackio

Jun 27, 2023 • 1h 7min
React Native at scale with Matt Hargett | React Universe On Air #23
✨ In September 2024, The React Native Show has become React Universe On Air ✨
In this episode, we take a closer look at how React Native fits into the enterprise picture from the perspective of derisking large-scale projects. We do that by discussing the vast experience of our guest, Matt Hargett, a 25-year veteran in Product and Technology Leadership who’s have taken an active role in reducing the ongoing operating costs and delivery times of some of the largest tech companies in Silicon Valley, including Roblox, PlayStation, and BlueJeans Network, just to name a few.
Matt and Łukasz discuss things like:
➡ setting performance optimization goals in large organizations, where you need to juggle multiple priorities, from feature development to user experience and performance
➡ strategies and processes for maximizing the chances of performance optimization success and derisking projects for SMEs and enterprises
➡ opportunities and challenges of bringing in React Native into large-scale projects for performance optimization
➡ best practices for adding new capabilities or technology to an enterprise project with training from consultancies like Callstack
➡ making purposeful, sustainable, and future-proof tech stack choices – and how open source technologies fit into that
➡ the possibilities and effects of bringing React Native into other languages
Tune in now to dig deeper into React Native at scale – and if you’re looking to futureproof your app with the technology that belongs to the React & React Native universe, give us a shout 👉https://hubs.li/Q01Vfb0R0
Get actionable tips on optimizing your React Native app performance at our next webinar 🧠 https://hubs.li/Q01VfbwR0
Check out other episodes of our podcast 🎧 https://hubs.li/Q01Vf9WY0
Sign up for our newsletter for developers and tech leaders 📧 https://hubs.li/Q01Vfb0r0
Follow us on Twitter 🐦 https://twitter.com/callstackio

May 31, 2023 • 36min
Callstack’s recap of App.js and Chain React 2023 | React Universe On Air: Coffee Talk #11
✨ In September 2024, The React Native Show has become React Universe On Air ✨
The conference season is in full swing. Many of you at the React Native community have been to Kraków and Portland and are heading to Amsterdam, Paris, or Wrocław soon. Knowing that it’s impossible to attend all these events, we’ve prepared a recap of two conferences we’ve recently attended: App.js and Chain React.
In this episode of The React Native Shows’s Coffee Talk, Łukasz is joined by Kuba and Szymon who share their impressions of these conferences and dig deeper into the talks that caught their attention.
Here are the links and other stuff mentioned in the episode:
👉 App.js 2023 recordings: day 1 https://www.youtube.com/watch?v=1WnmFqImedY & day 2 https://www.youtube.com/live/t0KDn4_zdrk?feature=share
👉 More info about and tickets to React Native EU 2023 https://hubs.li/Q01Rsgc-0
Hope you enjoyed our recap of the 2023 editions of Chain React and App.js, stay tuned for the next episode!
Enjoy the vibe? Join our team 🙌 https://hubs.li/Q01Rs0nZ0
Check out other episodes of our podcast 🎧 https://hubs.li/Q01Rs1pM0
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Follow us on Twitter 🐦 https://twitter.com/callstackio

May 16, 2023 • 25min
Vercel news, React Canaries & RN macOS 0.71 | React Universe On Air: Coffee Talk #10
✨ In September 2024, The React Native Show has become React Universe On Air ✨
With so much going on in the community, it might be difficult to keep up with the new releases and announcements. Łukasz (https://twitter.com/loginlukasza) and Kuba (https://github.com/bionanek) come to the rescue with their roundup of React and React Native news.
They begin by discussing a bunch of recent news from Vercel:
➡️ A foundational release of Next.js 13.4 that comes with stable App Router, Turbopack in beta (which you can listen more about in our Coffee Talk episode with Zack Jackson 🎧 https://hubs.li/Q01PFKHd0), and Server Actions in alpha.
➡️ Three choices for databases in beta versions: Blob File Storage, Vercel KV with Redis under the hood, and Vercel Postgres.
➡️ CodeSpaces, enabling CMS edits directly from your UI and making managing your frontend projects easier at scale. It’s bound to foster collaboration and speed up development involving cross-functional teams. Learn more about this feature from Vercel themselves: https://youtu.be/0UJ3znqK82A
➡️ New security measures, including Vercel Secure Compute to Vercel Firewall.
Next, Łukasz and Kuba discuss the introduction of Canary release channel for React, which is to give the community the chance to incorporate specific new features into their systems before they are officially released in a stable version, as long as their design is nearly finalized.
The last piece of news in this episode is the release of React Native macOS: 0.71 in cooperation with Meta and Messenger Desktop engineers. Here’s our Coffee Talk episode with Lorenzo Sciandra about React Native at Microsoft 🎧 https://hubs.li/Q01PFLmL0
Hope you enjoyed our newsflash, stay tuned for the next one!
Enjoy the vibe? Join our team 🙌 https://hubs.li/Q01PFLQN0
Check out other episodes of our podcast 🎧 https://hubs.li/Q01PFLQQ0
Sign up for our newsletter for developers and tech leaders 📧 https://hubs.li/Q01PFLJ60
Follow us on Twitter 🐦 https://twitter.com/callstackio

May 11, 2023 • 32min
React Native Performance Q&A | React Universe On Air #22
✨ In September 2024, The React Native Show has become React Universe On Air ✨
In April 2023, we had the pleasure of talking about performance optimization in the US. We went to San Francisco, Los Angeles and Detroit to meet some amazing folks from the React Native community – we loved the intense though exchange there!
During these meetings, we talked about our Ultimate Guide to React Native Optimization (https://hubs.li/Q01Pkt3j0), presented some news from React Native realm, and held Q&A sessions. We tried hard to answer all the questions, but there was only so much time, so some were left unanswered. Today we’ll be sharing these questions and answers with all of you, enjoy!
Here’s the podcast episode about Reassure ➡️ https://hubs.li/Q01Pkw0c0
If you’re hungry for more, or you need help with performance, reach out to us 👉 https://hubs.li/Q01PkwDw0 As a team of experts, we can support you with all things React Native.
Watch this episode on YouTube 📺 https://youtu.be/EDaf_Mm7ma8
Check out other episodes of our podcast 🎧 https://hubs.li/Q01PktNm0
Sign up for our newsletter for developers and tech leaders 📧 https://hubs.li/Q01Pkvg30
Follow us on Twitter 🐦 https://twitter.com/callstackio

Apr 27, 2023 • 29min
Callstack OSS Update | React Universe On Air: Coffee Talk #9
✨ In September 2024, The React Native Show has become React Universe On Air ✨
Welcome to the latest episode of Callstack's Coffee Talks, where we bring you fresh updates and insights from the world of React Native.
This episode was recorded during Callstack’s internal learning and development day, which allowed Łukasz Chludziński (https://hubs.li/Q01MYW0r0) to talk to a bunch of exciting guests:
- Michał Pierzchała (https://hubs.li/Q01MYXzM0)
- Aleksandra Pytko-Włodarczyk (https://www.linkedin.com/in/aleksandra-pytko/)
- Łukasz Walczak (https://hubs.li/Q01MYY7V0)
- Rafał Zakrzewski (https://hubs.li/Q01MYYrV0)
As the content of this episode revolves around Open Source, we begin by explaining how Callstack pays it forward to the community with involvement in OSS projects.
Then, we move on to the first topic: RFC for the proposal for natively supporting Expo Config Plugins by React Native core. This proposal has been released as part of our R&D program. The discussion around it is getting heated, so you should check it out 👉 https://github.com/react-native-community/discussions-and-proposals/pull/637
Next up, we throw a spotlight on super apps and our approach to building them. We mention our freshly released pillar page dedicated to Super Apps, which includes a bunch of helpful technical & business resources: https://hubs.li/Q01MYZqq0
Moving on, we talk about the latest updates to Re.Pack, including deal-breaking code signing and remote assets. If you’d like to dive deep into these new features, register for “Super app development made easy with Re.Pack” webinar held on May 9
👉 https://hubs.li/Q01MYYRH0
Last but not least, we have a segment on React Native Paper, where we discuss the latest developments and plans for future versions. We are currently on version 5 of RN Paper and version 3 of Material Design. Our ongoing work includes fixing bugs and extending our dynamic color schemes generator. We also share some spoilers for version 6 of RN Paper 👀
Enjoy the talk, and remember to subscribe to our channel to stay updated 💥
Need help with your React Native project? Give us a shout!
https://hubs.li/Q01MYZzp0
Check out other episodes of our podcast:
https://hubs.li/Q01MY-cv0
Sign up for our newsletter for developers and tech leaders: https://hubs.li/Q01MY-NW0
Follow us on Twitter:
https://twitter.com/callstackio

Mar 16, 2023 • 59min
Profiling in native and React Native | React Universe On Air #21
✨ In September 2024, The React Native Show has become React Universe On Air ✨
What is profiling? That is the first question Lukasz Chludzinski (https://twitter.com/loginlukasza) asks his guest – Jakub Binda, React Native Expert, and Eduardo Graciano (https://twitter.com/teddydroid07), software engineer at Callstack.
And it only gets better from there.
Since Jakub knows the ins and outs of profiling and Edu co-authored the section on profiling in our Ultimate Guide to React Native Optimization (which you can download here:https://www.callstack.com/campaigns/download-the-ultimate-guide-to-react-native-optimization?utm_campaign=Podcast&utm_source=youtube&utm_medium=social&utm_content=profiling_podcast), the conversation is full of best practices and useful tactics to make your app more performant.
What’s waiting for you inside?
- The definition and use cases of profiling
- Metrics you need to track when profiling your app
- Tools you’ll find useful, both for Android and iOS.
But our experts don’t end their conversation there. In the last part of the podcast, Edu, Łukasz, and Jakub discuss how to profile and app. Is there a best order of tasks for app profiling? Where should you start? Tune in to discover all you need to know about profiling.
Discover how we can help your company:
https://www.callstack.com/services?utm_campaign=Podcast&utm_source=youtube&utm_medium=social&utm_content=profiling_podcast_description
Check out other episodes of our podcast:
https://www.callstack.com/podcast-react-native-show?utm_campaign=Podcast&utm_source=youtube&utm_medium=social&utm_content=profiling_podcast_description
Follow us on Twitter to stay up to date with upcoming episodes:
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Enjoy!

Feb 22, 2023 • 37min
State Of React Native | React Universe On Air: Coffee Talk #8
✨ In September 2024, The React Native Show has become React Universe On Air ✨
In the eighth edition of Callstack Coffee Talks, Łukasz Chludziński (https://www.callstack.com/team/lukasz-chludzinski) and his guests, Michał Pierzchała (https://www.callstack.com/team/michal-pierzchala) and Oskar Kwaśniewski (https://twitter.com/o_kwasniewski), give their take on the results of the State of React Native 2022 survey.
They discuss the survey’s most important parts, key takeaways, and biggest surprises!
Enjoy the talk and remember to subscribe to our channel to stay updated 💥
Need help with your React Native project? Give us a shout!
https://www.callstack.com/services?utm_campaign=Podcast&utm_source=youtube&utm_medium=social&utm_content=coffee_talk_8
Check out other episodes of our podcast:
https://www.callstack.com/podcast-react-native-show?utm_campaign=Podcast&utm_source=youtube&utm_medium=social&utm_content=coffee_talk_8
Want to work with us? Check the current job openings:
https://www.callstack.com/careers?utm_campaign=Podcast&utm_source=youtube&utm_medium=social&utm_content=coffee_talk_8
Stay tuned - follow us on Twitter:
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