Physical Computing

We are happy to invite you to our next iOS meetup. This time we cooperate with the amazing 42 Berlin to share the knowledge and experience in iOS development. 18:00 Doors open 18:30 Welcome on campus **18:45** **— Sebastian Hagedorn, director of Engineering at Clue, presents "The Sensitive App".** Is your app really working, or just not crashing? “The Sensitive App” reports subtle bugs regardless of origin, and validates your assumptions in production so you don’t have to resort to guessing or praying. Learn how to turn your app into the first line of defense for your entire system’s health! **19:45** **— Dmitry Kurkin, lead Mobile Engineer at SuperNext, presents "Lessons that iOS Native Project could learn from ReactNative in agentic development".** We'll inspect the components of the React Native engine that provide faster feedback and boost agentic iterations.

\*\*\*DEUTSCHE VERSION UNTEN STEHEND\*\*\* 🌟 Calling all Soulful and Energetic Voices that wanna tell stories! 🌟 Hey there, vibrant souls! 🎤 Are you ready to ignite the stage with your youthful energy and passion for music? Join our electrifying urban pop & musical ensemble, where voices come together in a celebration of song and joy! 🎶 Picture this: a dynamic fusion of historic and contemporary pop, musical hits, and soulful melodies, all brought to life by voices bursting with youthful exuberance! 🎵If you're between 15 and 45 and crave the thrill of harmonizing with fellow music lovers, this is your golden ticket! 🌈 Rehearse with us every Thursday from 7:30-10 pm in the heart of Kreuzberg, and experience the sheer exhilaration of making music with kindred spirits! 💃🕺 So, what are you waiting for? We're on the lookout for singers who bring their prior solo and ensemble experience to the mix – voices that stand out and harmonize seamlessly with the sound of the ensemble. 🌟 Are you ready to add your voice to our chorus of excitement? Send us a private message expressing your interest, vocal range, and any singing experience you bring to the table. Let's turn up the volume on fun and create memorable musical moments together! 🎉 🎶 **Day doesn't fit, too little singing experience, or not in the required age group? No problem!** I conduct several choirs with different profiles: **Shabach! *– the choir not only for shy people*** (https://www.meetup.com/de-DE/shabach-berlin-the-choir-not-only-for-shy-people/) **DEUTSCHE VERISON:** Liebe Nachbarn, wir haben 2023 das neue urbane Pop- & Musical-Ensemble "SHOWTIME!" in Kreuzberg 61 ins Leben gerufen, Altersspanne ca. 15-45 Jahre, in englischer und deutscher Sprache. Wir singen Popsongs, Musicals, und Filmmusik. Das Level ist für Fortgeschrittene und die Sänger\*innen sollten über eine gewisse Gesangserfahrung verfügen. Der Chor probt **jeden Donnerstag von 19:30-22:00 Uhr im Gewölbekeller der Kapelle-am-Urban, Grimmstr. 10, Berlin-Kreuzberg.** Falls es Dich interessiert mitzumachen: Schreib mir bitte vorab Dein Interesse und Deine Stimmgruppe / Erfahrung kurz per Privatnachricht. Danke. **Keine Zeit an dem Tag, zu wenig Gesangserfahrung oder außerhalb der Altersgruppe? Kein Problem!** Ich leite Chöre mit verschiedenen Profilen: **Shabach! *– der Chor nicht nur für Schüchterne*** (https://www.meetup.com/de-DE/shabach-berlin-the-choir-not-only-for-shy-people/)

The longest day of the year is comming and let's another Kotlin meetup. This time we geather at N26! **⚠️⚠️⚠️ Due to a venue policy please submit the following form for additional details. Without it, you won't be allowed inside the venue:** https://forms.gle/XjqVXkD3FARCM6jA8 **Line-Up:** 👉 **TestBalloon: Kotlin testing is easier (and more fun) than you think** *by Oliver Okrongli* You want an easier way to write tests? Parameterize tests in plain Kotlin? Reuse a series of tests? Easily extend own your test setup? Have first-class support on all platforms? All without struggling with a huge framework API? TestBalloon is a new test framework that brings the power of Kotlin to your test setup. With a small-surface API, a hierarchical test structure and an extensible DSL, TestBalloon makes Kotlin testing easy, even at scale. Oliver, the author of TestBalloon, will show testing patterns and strategies and lots of practical examples, ranging from simple unit tests with less boilerplate to advanced testing with coroutines and generated data. This talk is based on insights first presented at KotlinConf 2026 in Munich. At the end of this talk, you’ll be able to firmly the answer the question: "How can I master Kotlin testing with ease, and make my team release with joy and confidence, every time?" 👉 **One Topic to Rule 'Em All** *by Yonatan Karp-Rudin* Kafka delivered every event exactly once, in order, and lost nothing. So what broke? This talk follows that question into the gap most event-driven systems leave open: what actually guarantees the order your domain depends on, and what quietly doesn't. We start from a real log line, find the crack in an architecture that looks clean and ships fast, and rule out the fix everyone reaches for first. The cure turns out to be one sentence of domain thinking plus one line of config, though the Schema Registry will fight you on the way there. A live demo runs the bug and the fix back to back: same load, same hero, one change. If you build with Kafka, you have probably shipped a version of this bug. You will leave able to spot it and fix it before it pages someone. 👉 **TBD** **Speaker Bios:** 🗣 Oliver Okrongli Oliver has been shaping and creating software from backend to frontends. He is the author of TestBalloon, a next-generation Kotlin test framework. Before, he has helped to maintain Kotest, and contributed to several libraries of the Kotlin ecosystem as well as the Kotlin compiler. Can be found on GitHub (OliverO2) and the kotlinlang Slack (Oliver O). When not developing, he is most probably in deep talks, dancing, snowboarding or F18 catamaran sailing whenever he gets a chance. 🗣 Yonatan Karp-Rudin Yonatan Karp-Rudin is a Staff Engineer at Billie, building event-driven systems in Kotlin and Spring Boot. Off the clock, he plays with AI agents and builds random tooling, trying to hand off as much of his own workflow to a machine as he can. The rest of the time he's brewing mead or deep in a video game. **🗣 TBD**

In Bad Company is a one-hour stand-up show hosted by Sepideh Kaav, featuring 2–3 of Berlin’s best comedians at one of Mitte’s coolest bars, HIER WO DU STRAHLST. Expect a night of great comedy, terrible decisions, and the kind of socializing where by the end of the night we all somehow know each other a little too well. No topic is off limits. No one is fully safe. Come with friends, come with a date, come alone, honestly, especially come alone, maybe you meet your future best friend or soulmate here. 🍸 HIER WO DU STRAHLST 📅 Thursday 8:30 PM (CEST) Doors: 20:30 Show: 21:00 to 22:00

Join us for the first meetup 100% dedicated to agentic analytics in Berlin. **The goal:** share real-world feedback between data teams on implementing analytics agents. **The format:** a roundtable with 4 data teams who have tested or deployed analytics agents using different solutions - Cortex, Dust, Hex, nao, Omni, Looker, or in-house tools. **[RSVP on Luma.](https://luma.com/ly17mjtj)** 📣 **Speakers of the night:** * [Marina Ariamnova](https://www.linkedin.com/in/marina-ariamnova/?utm_source=luma), Analytics Manager at SumUp - LangChain vs Dust * [Andrey Pushvintsev](https://www.linkedin.com/in/pushvintsev/?utm_source=luma), Staff Analyst at Miro - Claude + custom BI MCP * [Marielle Dado](https://www.linkedin.com/in/marielledado/?utm_source=luma), Senior Analytics Engineer at CarOnSale - Dataleap, Langdock, Claude + Snowflake Cortex MCP vs Secoda AI * [Andre Wagner](https://www.linkedin.com/in/andre-wagner/?utm_source=luma), Director of Data Analytics at Taxfix - Claude + custom plugin vs Looker The panel will be moderated by [Christophe Blefari](https://www.linkedin.com/in/christopheblefari/?utm_source=luma), founder of [nao Labs](https://getnao.io/?utm_source=luma). **Agenda** 6:30 PM: Doors open 7:00-8:00 PM: Roundtable 8:00-10:00 PM: Drinks and Networking **About our sponsor:** [nao Labs](https://getnao.io/?utm_source=luma) helps teams build and operate AI coworkers for analytics and operations. Their platform focuses on practical, production-ready agent workflows so companies can turn LLM capabilities into measurable business outcomes. **About our host:** [Trawa](https://trawa.energy/?utm_source=luma) is a Berlin-based energy platform helping businesses access cleaner and more cost-efficient electricity. By combining software, data, and energy market expertise, trawa enables companies to optimize procurement and better manage energy costs. Want updates or more info? Subscribe to our newsletter: [databerlin.substack.com](https://databerlin.substack.com) Follow us on LinkedIn: [Data Berlin on LinkedIn](https://www.linkedin.com/company/data-berlin/?utm_source=luma) Looking for a job? [databerlin.net/jobs](https://databerlin.net/jobs) Join our Slack community: [Data Berlin Slack](https://join.slack.com/t/databerlin/shared_invite/zt-2q6j9x0z8-~sG7o3Q8S2j4j5gXg2yHlw)

An *electric* atmosphere featuring visiting pros and some of the best comedians in Berlin at the city's longest-running weekly show. There's no such thing as a bad Chuckleheads; it's as consistent as it gets. Come and find out why we have more regulars than any comedy show in Berlin. The right mix of lively yet laid-back energy in an intimate setting, with well-curated line ups. Chuckleheads is primarily for experienced comedians, though depending on the week we might have a spot for a newbie or two. Doors: 8:00 pm Showtime: 8:30 pm RESERVATIONS ARE HIGHLY RECOMMENDED! We got limited seating. Book the amount of seats you need with your name and we'll have them ready for you. It is still a free-entry show, though please donate to keep the laughs coming and pay for production costs. Suggested donation is 10-20 euros. If you've been to other shows, you know it's well worth it. Come be part of it! As is tradition in the nine years (!) of the show, free shots are also given at the start of each show. Produced and hosted by Daniel Gutierrez. See you all Thursday!

**PLEASE ALWAYS CHECK THEIR REPECTIVE WEBSITES! Sometimes they cancel events and you don't want to go there for nothing.** This Contact Jam happens every thursday. Entry is 5€. The room is huge! Sometimes with live music. Their Homepage (http://marameo.de/kurse/marameo-contact-jam/) https://www.marameo.de/wp-content/uploads/marameo_%C2%A9Christian_Schneider_11.jpg

Fête de la Musique Together! (June 21) 🌟 Hey everyone! June 21 is the big Music Festival in Berlin. Let’s gather somewhere, hang out, listen to great music, and have a beautiful day together! 🗣️ Speaking at least basic English would be great so we can all chat and connect easily. Who is in? Let’s create some summer memories! ☀️🎉

The Creative Code Jam is a monthly gathering of artists, makers, designers, illustrators, coders, musicians, performers, learners and anyone interested in the use of computing skills for artistic expression. The event is free and open to all, regardless of age, origin, gender or experience. The jam is an opportunity to meet likeminded people and get creative together in a relaxed and safe environment. Beginners and first-timers should feel especially welcome! WHAT SHOULD I EXPECT? **Bring a laptop** and/or anything you’d like to work on, whether it’s a personal project, an experiment, or a skill you want to learn. You can come with friends or meet new people here. There’s no set agenda: some people code, some sketch ideas, some collaborate, and others just chat and get inspired. SCHEDULE Doors open at noon, then we’ll have quick introductions so everyone can share what they’re planning to work on. Note: arriving on time is the best way to hear what others are up to ;) Around 6 pm, we gather to share what we’ve worked on during the day. BEGINNERS WELCOME! If you’re new to creative coding, we'll be happy to help you get started, and you can find beginner-friendly resources at [creativecode.berlin/learn](http://creativecode.berlin/learn). THIS IS YOUR SPACE We do our best to create a welcoming environment for all people regardless of race, ethnicity, color, religion, gender identity, sexual orientation, national origin, age, disability, or genetics. People from group generally underrepresented in open-source, art, and technology fields are warmly encouraged to come by. And if you know someone who might enjoy this meetup but isn’t sure it’s for them, let them know they’ll be welcome! SAFE SPACE POLICY We support the Berlin Code of Conduct: https://berlincodeofconduct.org/ Please make sure you agree with its content. ABOUT MotionLab.Berlin MotionLab.Berlin is Germany’s premier Innovation Hub & Makerspace – an ecosystem for Hardtech, art, creativity, and entrepreneurship. They are an international community with access to state-of-the-art machinery, prototyping machines, coworking spaces, offices, and production facilities. More info: https://motionlab.berlin/ ACCESSIBILITY MotionLab is located on the ground floor, with bathrooms on that same level, although unfortunately they are too small for wheelchairs. FOOD MotionLab has drinks and snacks for sale. Bio food can be found on LPG at Bouchéstr (\~200m). Their cantine has vegan, vegetarian and other food options until 8pm. DO I NEED TO SPEAK GERMAN? We speak mostly English so international guests are more than welcome! Our team also speaks French, Turkish, Italian, Spanish, Dutch, Finnish and German... though language availability may vary depending on which organizers are present :) CONTACT Raphaël de Courville team@creativecode.berlin +49 176 700 70572 or get in touch via [creativecode.berlin](https://creativecode.berlin/)

Featuring Kaleidoscope, Berlin's premiere musical improv troupe. Laugh along as they make up a two-act Broadway-style musical on the spot, from your suggestions! Come see the show audiences are calling "riotously funny" and "pure magic on stage!" Doors 19:30: Show 20:00. Tickets at: https://www.improvworksberlin.com/shows

Unser Verein berlinCreators e.V. trifft sich jeden Freitag ab 18 Uhr im Makerspace. Wir haben Gruppen rund um Elektronik, 3D-Druck, Nähen, Programmieren, Retro Computer. Egal ob Anfänger oder Profi – hier seid Ihr Willkommen. Ihr könnt mit anderen fachsimpeln, Euch inspirieren lassen oder auch mit unserer Hilfe Eure ersten Projekte starten. Wenn Ihr Euch bei uns wohlfühlt und Mitglieder bei den berlinCreators werden möchtest, freuen wir uns. Kommt vorbei, lernt den Space, uns und die Möglichkeiten kennen.

Featuring Kaleidoscope, Berlin's premiere musical improv troupe. Laugh along as they make up a two-act Broadway-style musical on the spot, from your suggestions! Come see the show audiences are calling "riotously funny" and "pure magic on stage!" Doors 19:30: Show 20:00. Tickets at: https://www.improvworksberlin.com/shows

Das alte T-Shirt mit einem Statement-Print wiederbeleben, eine verlorene Spielfigur nachdrucken oder einen Stempel designen: MeetUp im Humboldt Forum! In diesem dreistündigen Workshop sind alle Interessierten mit und ohne Vorkenntnisse dazu eingeladen, verschiedene Maker Space Technologien kennenzulernen. Wir erklären an unterschiedlichen Terminen (s.u.), wie sich mit Laser Cutter, 3D-Drucker, Schneidplotter, Näh- oder Stickmaschine nützliche Dinge für den Alltag herstellen lassen. Inspiriert von den aktuellen Ausstellungen und Themen des Hauses, können am Laptop mit der Software Inkscape oder Tinkercad eigene Grafiken und Objekte entworfen und gestaltet werden. Wer sich geschickt anstellt, kann am Ende ein fertiges Produkt mit nach Hause nehmen. Die Personenzahl ist begrenzt. Bitte buchen Sie **am Veranstaltungstag an der Tageskasse im Foyer** pro Person ein kostenfreies Teilnahmeticket! Der Workshop ist nicht für Kinder und Jugendliche unter 16 Jahren geeignet. **Die nächsten Termine und Themen:** **Nützliches aus Filz mit der Stickmaschine** 25\. April \(ohne/geringe Vorkenntnisse\) und 2\. Mai \(Fortgeschrittene\) **Pins und Anstecker aus dem 3D-Drucker** 23\. Mai \(ohne/geringe Vorkenntnisse\) und 30\. Mai \(Fortgeschrittene\) **WM-Special: Fan-Trikots selbst gemacht – Bitte T-Shirt mitbringen!** 20\. Juni \(ohne/geringe Vorkenntnisse\) und 27\. Juni \(Fortgeschrittene\) **Weitere Informationen:** Kostenfrei. Bitte buchen Sie Ihr Ticket direkt am Veranstaltungstag an der Tageskasse im Foyer. **Die Ticketbuchung im Voraus und im Webshop ist nicht möglich.** Dauer: 180 min. Ab 16 Jahre. Sprache: Deutsch, Englisch. Rollstuhlgerecht. Ort: Werkräume, 1. OG. Maximal 15 Personen.

At OpenSpace Networthing entrepreneurs from diverse disciplines, industries and nations meet to collaboratively develop solutions for challenges presented by participants. This month we will dive deeper into building digital products with Vibe Coding & AI with Varun Jain. We are building a networking-App: The "Tinder for Entrepreneurs" If you want to offer a workshop or present a topic for our members, write an email to alejandro.wagner@mlp.de Entrance is free! Bring in your expertise instead.

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).

We're going to GameArena! We'll be in-person at the GameArena Gateway for our monthly COGG Prototype and Play event. Come to play and showcase your games! We're back in the upper levels of the catwalk area. It'll be packed with lots of camaraderie playing your game(s) and other's games on the 2nd floor. Light snacks and water provided but you can buy food and drinks at the bar (alcoholic drink ID required). [www.game-arena.co](http://www.game-arena.co/) **Attendees:** Don't have a game to show? Not a problem! All are welcomed and invited from all ages and backgrounds. The more we can have to play test our games is all the better! **Developers:** Do you have a game that you would like to get critical feedback on? Would you like an excuse to work on a game with other talented artists, programmers, musicians, designers, and writers? Digital, table-top, non-experienced developers, and the like are welcomed! We'll provide signage for your game to help others learn more about your work. Wifi, outlets, tables, and seats (though standing tables also) are available. Come to the Prototype and Play workshop to collaborate and meet local game developers for an evening of epic and raw game play fun! Play works-in-progress, show off your own game, work with others to add polish to a game, or even lend your talents to other fellow developers. For this event, light snacks from the bar and water will be provided! Though you can purchase you own if you like at the bar: [https://www.game-arena.co/menu](https://www.game-arena.co/menu) Can use South Garage at the Gateway with a $5 voucher on your way out. 75 E 11th Ave, Columbus, OH 43201 [https://maps.app.goo.gl/UwgveUYG37Jy7RtS9](https://maps.app.goo.gl/UwgveUYG37Jy7RtS9) If you have any questions or comments, as always, feel free to reach out to us at [info@thecogg.com!](http://info@thecogg.com!/)

## 🤝 Host Information A co-hosted event by ProductTank Columbus & Women in Product Columbus 💡 About the Workshop AI adoption is stalling across organizations — not because of a lack of motivation or tools, but because it's fundamentally a behavior design challenge. This hands-on workshop applies proven Behavior Design models and methods to help you move from a vague organizational wish to boost AI adoption to 3-5 concrete, testable interventions you can act on starting tomorrow. Whether you're a product manager, on a product team, or just someone trying to get AI to actually stick at work, you'll leave with a clear picture of what's worth focusing on, what to ignore, and how to drive real, sustained adoption — no guesswork required. 🛠️ What to Bring Laptop: Fully charged and ready to go. AI Assistant: Have your favorite AI assistant pulled up. (Dom will be using Claude, but feel free to use whichever assistant you prefer!) 🍕 Logistics & Perks Food & Drink: Pizza and drinks provided! Parking: Plenty of free spaces available on-site. ###

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

Whether you've never done improv before, or you've done it for so long you were quoted in *Truth in Comedy*, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup**! The idea behind improvised comedy is to create entire scenes from scratch. A suggestion is taken from the audience and laughter is built on the spot. This can be done in game form, like *Whose Line Is It Anyway, Make Some Noise,* or *Wild 'n Out*; it can also be done in a longer way, to tell a complicated story, like *TJ & Dave*. Our meetup, which is central Ohio's longest running (and FREE!) weekly comedy event, brings the games for you to play in a safe, supportive, and compassionate environment. Afterward, many members will hang out in *Gresso's* itself and get to know each other. Not only is this a lot of fun, but you get to work on thinking faster on your feet, your public speaking, plus it's an excellent way to meet new people and build relationships that will last a lifetime, and you do that while laughing your butt off! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "*Yes, And*" that you'll have a blast!

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Most people still use AI like a search box: type one question, get one answer, repeat. But the next step is AI agents: systems that can take a goal, break it into steps, use tools, remember context, and produce useful work for a human to review. In this beginner-friendly session, we’ll demystify what AI agents actually are — without hype or jargon. We’ll walk through practical examples of how agents can help with research, planning, writing, coding, operations, and personal productivity. We’ll cover: * What makes an AI “agent” instead of just a chatbot * How agents break tasks into steps * Where agents are genuinely useful today * Where they fail, hallucinate, or need human review * How to design simple AI workflows for your own work * A live demo of an AI agent-style workflow from start to finish No coding experience required. This is for anyone who wants to understand where AI tools are going and how to use them more effectively right now. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.