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.

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

A microscopic cog in your catastrophic plan.

Indie app/game developer (macOS/iOS/Swift/Godot) at Elegant Chaos.

As an experiment I’m mostly posting technical stuff here, and personal / political stuff on Bluesky at @bornsleepy.com.

It is I, Grouleff!

100% natural and organic intelligence 🧠

I make computer go brrr. Mostly using #Ruby, but I also dabble in #RustLang and #Swift / #SwiftLang

I post mainly in #Danish, and occasionally in #English.

I like #cycling / #cykling, #running / #MastoRunDK, and #coffee.

I am the caretaker of #MusikalskPlanke, the daily chance to do a bit of planking, together with @klgn.

Born at 338.99 ppm.

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!

Former Swift Pipeline Engineer contracting @ Apple Marcom’s CGStudio

Ex-Apple DevPubs (12+yrs, remote). Author. OCD-sufferer. Apple platform developer since 1985. Former NeXT developer.


Like any rational adult, I dislike mimes.

"✨ DES INFLUENCER DO FEDIVERSO ✨ |
2 ANOS DE GLÓRIA ROUSTANDO A ERA TAY-TAY (e seu coração) 💘
CEO do caos, presidente honorária do fã-clube mais suspeito desde 1989 🕶️
TRAJETÓRIA: 13 troféus de ‘não supero o folklore’ 🏆 | Roubei o VMA de Melhor Fã Obsessivo (desculpa, Beyhive) 🐍🍵
VÍCIOS: decifrar easter eggs, criar teorias erradas e transformar drama em post viral 🔥
apaixonado por Marcelle Renata🏳️‍⚧️💃🏻🦋
Elizabeth Tayloorrrrrrrrrrrrrr

Writing the #1 iOS newsletter on Substack. Turbocharge your Swift career with in-depth weekly articles 🚀 Sign up free today!

https://join.jacobstechtavern.com

Wannabe techie || I have no idea what I'm doing here || Kann Spuren von Musikwissenschaft enthalten

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

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

Rorohiko kaiārahi. Frentantic Intromastecution. Fraught Leader. Polibernial Mandorpulatorist. Neologist. Weirdo. Can fold fitted sheets.  ن #kindness #apple #rabbits #bunny #photog #cars #motorcycles #tech #foss #NgātiPākehā #TangataTiriti #DadJokes #coeliac #TaylorSwift #NZTwits

A rolling stone should not judge a book by its glasshouse // The higher, the fewer.

Darwin LT-14911.local 25.0.0 Darwin Kernel Version 25.0.0: Thu Aug 14 21:58:31 PDT 2025; root:xnu-12377.1.8~5/RELEASEARM64T6041

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.

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.

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

Linker Spinner | Gamer (PS5: "Truhe2342", Quest 3, Switch, Wii) | Fahrradmensch | mault (zu) gerne rum | beruflich Senior System Integrator | handwerklich unbegabt | Orvie | Trekkie | Swiftie | Wir hätten Robert Habeck haben können.

🪄 | 35 | Developer | Hacker | Infosec |  #apple /🤖 #android /🌐 #web | take life with a grain of salt 🩵 | Building @AuroraEditor | Organizing @Appsterdam | #swiftlang | #php | #kotlin | #fedi22

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

Failed Swift Software Engineer of indeterminate gender
I play video games, read comics and fail to produce podcasts
Currently on a neurodivergent journey of self-discovery, self-recrimination and self-flagellation
Pronouns: they/she/no/please-don’t (don’t collapse the probability waveform)
Jewish, in the apostate never finished Hebrew school way

Profile pic description: a vaguely feminine person with green hair and black lipstick wearing a black turtleneck, now pixelated!

Software engineer, building mobile apps for over a decade, currently iOS apps in Swift.

Mechanical watches, anime and space Lego models enthusiast.

#ios #swift #iosdev #lego #watches #anime