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.

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

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.

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

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The cause of several bugs since iOS 4.
Working on https://alyxcaffeinetracker.com
Dev Rel at Superwall.
Wrote a book series over iOS dev.
I make a basketball app for coaches too, Elite Hoops.

Until next time ✌️.

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.”

Software developer from Portland, Oregon, now in Hobart, Tasmania.

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

Cohost of the #RooftopRuby podcast. Friend of DeSoto.

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!

I make stuff. he/him 🖖 🐾 🏳️‍🌈, 🇪🇺

Posts in 🇫🇷, 🇳🇱, 🇸🇪, 🇬🇧, 🇧🇬, about Star Trek, Cats 😻, apps, robots, aliens, self-hosting, FOSS, IoT, sustainability...

#Swift #Elixir #IoT #Music

https://flowvi.be @tootsdk

main alt: @iamkonstantin
#nobridge

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 ✊🏾🏳️‍🌈🏳️‍⚧️♀️

He/him. Human. #WokeAF

Indie software dev, tinkerer, player of video games, husband, P.U.N.K., futurist, comical element. ⭐️ Alumnus CTO & co-founder of German sustainability startup RECUP 💚

I try to make a living creating #Shortcuts-centered, productivity-related tools for #macOS & #iOS.

From #Flensburg, Europe 🇪🇺

#ShortcutsApp #Developer #dev #SwiftUI #Swift #Typescript #Javascript #ObsidianMD #PKM #Germany #provene04241

Bluesky: https://bsky.app/profile/zottmann.dev

Physicist & techie. #CERN alumnus.
Co-creator https://mas.to/@SwiftPackageIndex.
Hummingbird app https://hbird.app. 
Europe • he/him

Crazy Mac lady. Mac author & developer. Lover of Apple computers and devices. Swift & SwiftUI enthusiast. Unofficial Mac app dev evangelist.

iOS and Mac developer, focused on SwiftUI. Working on Matter/HomeKit stuff. Founder of nxtbgthng.