JSX to Live Activity: The Story of Voltra

Date
Thursday, February 5, 2026
Time
5:30 PM [CET]
Location
Gdańsk, Poland
Online

JSX to Live Activity: The Story of Voltra

Learn how Voltra brings React to iOS Live Activities and Dynamic Island by translating JSX into SwiftUI through a custom React renderer.

Date
05 February 2026
-
Time
5:30 PM [CET]
Location
Gdańsk, Poland
Online

JSX to Live Activity: The Story of Voltra

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Organizer
Organizer
Presented
Meet.JS
@
Speakers
Speakers
Featuring
Szymon Chmal
Software Developer
@
Callstack
Featuring
Szymon Chmal
Software Developer
@
Callstack

What if you could ship native iOS Live Activities and Dynamic Island experiences without writing a single line of Swift? This talk tells the story of Voltra, a library born from a viral tweet and a collaboration between Saul Sharma and Callstack to bridge the gap between React and native iOS extensions.

We'll go behind the scenes of building a custom React renderer from scratch to translate JSX into SwiftUI primitives, bypassing the traditional "Swift wall." You will learn how we tackled the extreme technical constraints of the platform: from the tiny 4KB data limit to server-side driven UI that doesn't require a pre-shipped implementation.

Join us for a deep dive into Voltra's architecture and learn how you can start shipping React to a brand-new platform today.

Register now
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JSX to Live Activity: The Story of Voltra

Learn how Voltra brings React to iOS Live Activities and Dynamic Island by translating JSX into SwiftUI through a custom React renderer.

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