Teaching programming (fundamentals, data structures and algorithms, GUI programming) in university. Formerly did also training for companies as a freelancer. Programming for myself and fun. C/C++, Java, Swift and SwiftUI. Drawing and painting, running and cycling. Father & grandfather. Old toots automatically deleted.

Header pic: Lake Oulu, forest across the water on a sunny evening in August.

Still an Apple serf, but everything on the App Store is free because I don't want to contribute to their political bribery supply chain (aside from the hundred dollars per year developer-rejection fee). Sharing Swift tips and Apple criticism here, other topics and cat photos on other accounts.

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

K-12 sysadmin. Linux, Mac, and some other things including pfSense, Ubiquiti, Juniper/Mist, and XCP-ng. Photographer, Apple enthusiast, and vintage tech admirer in my spare time. Learning Swift/SwiftUI. BLM. LGBTQIA+ ally. Profile pic by Iconfactory.

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)

Interests: #python, #swift, #iOS Shortcuts, Tour de France, #chess, PS5 gaming, Landscape and Architecture #photography, 80s-90s music, #mufc

Nerd. iOS/Swift developer @ onvista media. Gamer. Netrunner. Effzeh. Grumpy old man. #fckptn #fcknzs #fckafd #fckmsk #fckmrz #fckice

👨🏼‍💻 Experienced developer on  platforms with a big 🫶 for indie apps
🎙️ CocoaHeads Hamburg Organizer
💼 iOS @ Supershift

My own apps:
📆 CannotWait - Days Counter
❓ Ask Adalbert - Decision Helper
⏳ More to come

My posts reflect my own, personal view; I never speak on behalf of any other person or company.

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

Science: Astronomy, Molecular biology, Muscular dystrophies, Renewable energy, accessibility.

Speaker at astronomy and Swift events.

Tech: NeXTSTEP, macOS, iOS, and WebObjects developer.

Politics: Conservative Green party activist for over 30 years (D, NL, BG)

I speak English, German, Bulgarian. Russian, Dutch, and Spanish and I learn Japanese, French, and Vietnamese.

🇪🇺🇦🇲🇳🇱🇧🇬

Father. Husband. Programmer.

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

Ally ✊🏾🏳️‍🌈🏳️‍⚧️♀️

Indie dev for Apple platforms (Swift & SwiftUI). Find me on X and Bluesky (@alpennec).

Dad. Developer in many places. Ever moving. Ever trying new code. From 🇧🇷, half 🇵🇹, lived in 🇪🇸🇩🇪. Finally settled in 🇪🇸.

Writing #SwiftUI to buy 📚
(Header image: Wooden Trojan horse at Sea Life in Munich)

Indie developer in Greater Manchester.
Made Hike Maker, Slow Ways Makers, GeoSort, Star Hordes, SoloTime and others.
#indiedev #swift #custard #walking #gardening

🪜 Writing Swift, building apps, exploring AI, and making pottery.

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.

Longtime (corporate) software developer with a big interest in iOS/Swift development. I also love photography, movies, video games, and music. Plus my dogs and cats.

Colorado based. 🏳️‍🌈

Father, husband, dog owner, runner, professional #macadmin and spare time #swiftlang developer

Indie Dev on Apple Platforms #NFC #iOSDev 🇩🇪🇵🇹 #AppStore #Swift #SwiftUI #Apple

💖 @anitra’s hubby
💻 Developer advocate for OpenZiti/NetFoundry
🪗 Rock/pop accordion
📱 Python/Swift/Kotlin/Go
🇵🇭 The Thrilla from Manila
🇨🇦 Canadian citizen in the US 🇺🇸
🎹 More of a social justice *bard* than a social justice warrior
🌴 Living in Tampa, Florida