App developer & mini painter. I make apps and break things.

UIKit. Swift. Gaming. Warhammer. Generative AI. Reverse-engineering. Husband. 🏳️‍🌈 He/him.

I write Swift and write about Swift, but most people prefer my dogs.

Full-time open-sourcerer & indie Mac developer. Swift & Node.js.

thwart leader

 unrelated. I'm here for bugs.
☈ https://cryptoswift.io ⌨️ TextKit certified expert @ https://goodnotes.com by day

Get https://notepadexe.com - developer playground.

Text editor implementer by night https://github.com/krzyzanowskim/STTextView

Dad, husband, Swift language designer and Swift/C++/ObjC compiler implementor, Author, Generic Programming aficionado. He/him.

Swift, squirrels, cycling, cities for people not cars. My book: Advanced Swift. Berlin. Languages: de/en.

Invisible characters: When posting code, I sometimes insert a zero-width space (U+2060) to prevent things from turning into hashtags or mentions. Example: `@⁠escaping #⁠line`. Beware when copy-pasting such code into your editor.

I put the UI in Ennui • today your love, tomorrow the world.

iOS @ Linear, previously SwiftUI at Apple.

Author of iOS Dev Weekly and co-creator of the Swift Package Index.

I much prefer email to private mentions here. You can email me at [email protected].

Swift and Go. Love 'em both. They make me mad in completely different ways. Infosec as required. robnapier.net

Sr Software Engineer at Apple, currently C1 Developer Tools, previously Swift DocC. All the info at http://underplot.com

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Developer of indie macOS apps. The Archive, WordCounter, TableFlip, Move!

Using #Xcode to write #Swift and sometimes #SwiftUI apps for #iOS and #Mac.

OG #Zettelkasten zealot.
Local #urbansketchers group founder.

#Bielefeld (Germany)

A video series exploring Swift and functional programming. Hosted by @mbrandonw and @stephencelis.

Save 30% off today! https://www.pointfree.co/discounts/black-friday-2025

I coined the term “Mac Assed Mac App.”

A software developer from Portland Oregon. I’ve been writing iOS and Mac apps since 2008 and Ruby since 2021.

📱 #Swift (iOS and Mac).
🚂 #Ruby (and Rails)

Cohost of the #RooftopRuby podcast. Friend of DeSoto.

Maintainer of bazel's iOS support, creator of the Mobile Native Foundation, LLVM & Swift contributor. Previously devx at Modular, Principal Engineer at Lyft, Core Team @CocoaPods

Language designer and implementer at Apple: Swift, Objective-C, C++, C. Erstwhile editor of the Itanium C++ ABI. Focus on security mitigations and low-level language implementation.

Twitter migrant! Boomer here (aka OLD)Brooklyn NYC born and raised, but live in hell in DeSantis land now🤮 My family, politics, tea drinking, Whovian, raising Monarch 🦋, dogs, plants, books and golf are my jam! PS I am a Senior Swiftie!

Working on Swift stuff for BigTech (contractor).

ex-🍎 software engineer (employee: Safari team; contractor: Marcom video production). Previously, software engineer at: Be, TiVo, Synclavier.

Cats. Guitars. Basses. Synths. #nobridge

Current gaming focus: Wuthering Waves

Travel is my drug of choice. (117 countries & counting.) Profile background: Bora Bora, 2014.

Pronouns: She/her, they/them, dude.

Location: Menlo Park. SFO. The World.

iOS Dev Happy Hour & CommunityKit organizer

Swift Leeds 2025 Speaker 🇬🇧
Swiftsonic 2026 Speaker 🇺🇸

My latest app is Please Don’t Rain (2023 AppleVis Golden Apple nominee for its accessibility support)

he/him

#accessibility

Father. Husband. Programmer.

Creator of Cake and Spectre.Console.
Microsoft MVP. GitHub Star alumni
I like OSS, C#, Swift and Rust.

Ally ✊🏾🏳️‍🌈🏳️‍⚧️♀️