Kyle Macomber

@kylemacomber

Co-founder & CEO @BitrigApp · Co-creator #SwiftUI at Apple

Los Altos, CA

Joined July 2009

Replies Reposts Media Articles

Kyle Macomber
@kylemacomber
12h
Justin was my first manager at Apple. I joined for my internship the summer they shipped FaceTime and full-time the summer they shipped iMessage. What a time! When I was thinking about leaving Apple to start @BitrigApp, he was one of my first calls.
Bitrig
@BitrigApp
15h
We're so excited to announce our next judge for Bitrig Hacks... @jsmaria! Justin was co-founder and CTO of Future and was an early member of the iPhone team at Apple. Register for a chance to join Bitrig Hacks: iPhone Duo Edition. events.ycombinator.com/bitrig-hacks-s…
Kyle Macomber
@kylemacomber
15h
Until you've walked a mile in their shoes, it can be hard to appreciate why the teams at Apple are so conservative with the API surface they expose. But look at the navigation bar in iOS 17. Now look at it on iPhone Duo on iOS 27. It was a massive multi-year effort that required
Vatsal
@vatsal_manot
16h
“all bugs are bridging bugs” “it’s hard to build a declarative layer over UIKit” the blood boiling rage of knowing how absolute dogshit some of these bridges continue to remain while also knowing the primitives needed to build their OSS replacements remain private and unexposed
5
Kyle Macomber
@kylemacomber
18h
On the SwiftUI team we had a joke: "all bugs are bridging bugs." It's hard to build a declarative layer over UIKit! There's a lot of undefined behavior, especially in the subtle timing of the update cycle. And it's always changing. Even sitting in the same hallway, with an
Mustafa Ali
@mustafa01ali
Sep 11
Shop is the first of our apps to complete the move back to native. The team rebuilt it in Swift and Kotlin in just 12 weeks. It now launches 23% faster on iOS and 50% faster on Android, with a 10x lower crash rate and a 109 MB smaller Android build. We expect those numbers to
18
Kyle Macomber
@kylemacomber
Sep 10
When we first had the idea for @BitrigApp in late 2024, conventional wisdom was that LLMs would mean the end of all but the most popular programming languages, like TypeScript and Python. As someone who devoted over a decade to programming language and API design, I’m glad to
Mustafa Ali
@mustafa01ali
Sep 10
Article
Shopify is moving from React Native to Native
Shopify is moving all of our mobile apps from React Native back to Swift and Kotlin. Going all-in on React Native in 2020 was hugely successful for us. We saved a ton of time by building features...
8
Kyle Macomber
@kylemacomber
Sep 3
Time to give Bitrig a try: ✅ Runs parallel agents in their own Git worktree ✅ Tests your features in parallel with Simulator Use ✅ Cleans up your DerivedData ✅ Build on the go with Bitrig Remote
Bitrig
@BitrigApp
Sep 3
Run parallel agents in Bitrig. Bitrig can now manage multiple coding agents in parallel, each in an isolated workspace with its own simulator. bitrig.link/blog/run-paral…
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