Mike Grabowski – Medium

Mike Grabowski

Type-safe env variables in TypeScript

Almost all our projects have environmental variables. We use them to configure various aspects of our systems. What if they’re missing…

3 min readSep 30, 2022

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Mike Grabowski
in
Callstack Engineers

Technical Guide, Part 2: Integrating Hermes with React Native

The latest React Native 0.64 release adds support for the Hermes engine on iOS, and this is a direct result of our intensive work with…

7 min readAug 16, 2021

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Technical guide, part 2: integrating Hermes with React Native

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Mike Grabowski
in
Callstack Engineers

Technical Guide, Part 1: Compiling Hermes for Apple Platforms

Months of our intense work with teams at Facebook and Microsoft resulted in bringing Hermes to iOS. We are happy to share the details of…

7 min readMay 31, 2021

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Technical Guide, Part 1: Compiling Hermes for Apple Platforms

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Mike Grabowski
in
Callstack Engineers

Bringing Hermes to iOS in React Native 0.64

For a long time Hermes was exclusive to Android — it was optimized for running React Native apps on Android only. Now it’s finally…

5 min readApr 26, 2021

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Bringing Hermes to iOS in React Native 0.64

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Mike Grabowski

How to tell a story

Guide for non-native speakers

7 min readSep 17, 2018

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How to tell a story

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Mike Grabowski

React Native EU 2018

Everything you need to know

3 min readAug 2, 2018

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React Native EU 2018

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Mike Grabowski
in
Callstack Engineers

Announcing Rebolt

Callstack’s take on React Native at a scale

4 min readJul 2, 2018

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Mike Grabowski
in
Callstack Engineers

Announcing ReRoute

The future of navigation is here and it’s built in Reason

3 min readMay 24, 2018

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Announcing ReRoute

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Mike Grabowski
in
Callstack Engineers

A successful cooperation with a client doesn’t end at software development — it’s just the…

Callstack is a consultancy focused on cross-platform development, with React Native being our primary technology these days. What makes us…

2 min readMar 21, 2018

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A successful cooperation with a client doesn’t end at software development — it’s just the…

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Mike Grabowski
in
Callstack Engineers

“Is this possible with React Native?” — said an iOS developer to a React one

At Callstack, we hear this question every once in a while. Whether it’s our client looking into launching an app on many platforms…

3 min readFeb 15, 2018

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“Is this possible with React Native?” — said an iOS developer to a React one

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Mike Grabowski

Mike Grabowski

Co-Founder at Callstack, React Native developer. Dealing with timezone differences between Europe and USA. Writing with ❤ from Poland. Moving to LA soon 🤞

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