Kewin Wereszczyński

Kewin Wereszczyński

Software Engineer

Started his career as a tester before transitioning into programming, working on numerous startup projects as a solo frontend developer or in small teams. His biggest achievement was becoming a frontend lead on one of the projects. Passionate about 3D graphics, games, special effects, photography, and cinematography, he has also explored being a rock band vocalist, English stand-up performer, improviser, and YouTuber. Recently, he has become a bit obsessed with AI.

What I’ve been shipping

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7/24/2025

Live Dev Session: Week 30 React & React Native Rundown

Join Callstack’s Łukasz & Kewin for a live React recap: fresh news, vibey code sessions, and good dev talk. Happening Thursday, July 24, 5PM CEST.
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7/16/2025

Live Dev Session: Node-API, Wallets & Worklets in React Native

Node-API in RN, Apple’s LLM, react-native-wallet, ChromeOS rumors. The Week 29 React Native stream breaks it all down with some code and a lot of commentary.
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7/10/2025

Live Dev Session: Unistyles 3.0, SSR With Hermes & Expo SDK 52

From inside shadows to decentralized music players, catch the latest React Native takes in Week 28 live dev session with Łukasz, Kewin, and Mike.
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7/3/2025

Live Dev Session: Exploring Skia, Nitro Modules & UI Playgrounds

Live dev stream exploring Skia, Nitro Modules, AI app builders, and React Native tools; plus side quests into canvas UIs, Lottie, and pizza-coded joy.
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6/17/2025

Live Dev Session: React Native Styling, OTA, and UI Tools

Tune in to a live session unpacking React Native 0.80, OTA alternatives, AI-generated UIs, styling wars, and some truly wild tech tangents.
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6/10/2025

Live Dev Session: First Impressions of Apple’s On-Device AI

Tune in to dev chat on Apple’s AI SDK, iOS 26 naming chaos, Siri’s limits, Liquid Glass UI, and on-device LLMs.
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6/3/2025

Run LLMs Locally With React Native & MLC

Watch how MLC brings on-device AI to React Native. See react-native-ai in action and discover what’s next for local model execution.
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