Scientific Computing

In May, [Bruno Caballero](https://github.com/bruno-ah-um) will show us how to target hardware accelerators from Java with MLIR based on [his fork of the OpenJDK Project Babylon](https://github.com/bruno-ah-um/openjdk-babylon-mlir-tosa). Bruno leads the Java Virtual Machines Engineering team at [MicroDoc](http://www.microdoc.com), which develops JVMs and maintains ports across various processors and operating systems. In this talk, we’ll explore a toy project that translates Java code into MLIR for the TOSA dialect, which is used for AI and accelerator workloads. We’ll briefly introduce current approaches (e.g., TornadoVM and Babylon/HAT), before looking at how this project reuses existing compiler infrastructure instead of building new backends. Finally, we’ll touch on whether DSLs should be embedded in general-purpose languages like Java or designed as standalone languages. Small snacks and drinks will be available. There is always space for outside topics and discussions. If you have specific questions, please bring them. Looking forward to meeting everyone again!

We make landladies and landlords. They buy a flat and pay just 1/4. 3/4 come from tax cuts and tenants. It's not a trick. It's government policy. All German Federal Governments, past and present, of whichever party, want taxpayers to become landlords and -ladies, buy property, rent it out to tenants and enjoy passive income later. Come here and find out. No strings attached. No sales. Just a meet and greet for orientation. Wir machen Vermieter. Steuerzahler kaufen eine Wohnung und zahlen dafür nur 1/4. Mieter und Finanzamt zahlen 3/4. Das ist kein Trick. Das ist Politik: Alle Bundesregierungen wollen, dass Steuerzahler Vermieter werden, Wohnungen kaufen, Mieter reinnehmen und später Beton‑Rente bekommen. Info-Abend nur zur Orientierung. Kucken kostet nichts. S,U Bahnhof Zoo, Kantstraße 163-165, 10623 Berlin, Motel One Upper West, 10th floor, turn left, circumvent the sign "vorübergehend geschlossen" Go justs there. I'll be there. Georg Holzach. 0177 8181 900 WhatsApp

Hi everyone, Our next CorrelAid Berlin in-person meetup is coming up! 📰📊 🗓️ When: Thursday, May 21, 2026 🕠 Time: 18:30 \~ 20:00 📍 Where: Café Milagro, Bergmannkiez, Kreuzberg The meetup is informal and open to **data folks, journalists, NGO practitioners, and anyone curious about #DataForGood**. No talks, no slides, no prior experience required – just bring your questions, examples, and opinions. Whether you’re already involved in projects or just curious about CorrelAid Berlin and data science, you’re very welcome to join – grab a drink, meet others, and exchange ideas. Looking forward to seeing you there! CorrelAid Berlin team 💙

🚨🚨🚨Registration is handled by [https://luma.com/plh20q65](https://luma.com/plh20q65) (limited spots) 🚨🚨🚨 We’re heading to Home24 for a proper building session! ​You are invited! Come along to meet the community, swap ideas, and get stuck into some hands-on work. Reserve the spot with RSVP. ## ​🗓 Agenda: * ​▶️ **6:00 pm:** Doors open with networking and snacks 🍕🍻☕ * ​▶️ **7:00 pm:** Opening Keynote * ​**ℹ️ 7:10 pm:** Home24 presentation * ​[Gianluca Randisi - CTO, ](https://www.linkedin.com/in/giovannilucarandisi/?utm_source=luma)introduction to Home24 * ​[Iskriyana Vasileva - Senior Data Scientist, GenAI Solutions](https://www.linkedin.com/in/iskriyanavasileva/?utm_source=luma), Showcase of a few use cases, including image generation, video generation, and AI- and human-based evaluation * ​▶️ **7:45 pm:** Workshop (**📌Laptops are required. Please charge them in advance!)** * ​Mastering the fundamentals of **ADK** and **multi-agent** systems. * ​Coding with **[Google](https://www.linkedin.com/company/google/?utm_source=luma)**'s AI stack: Generate a React app using Google Stitch, Antigravity IDE, and MCP. * ​Multimodal Agents: Build a disaster response graph database with Spanner Graph, ADK, and Long term Memory. * ​Test and run agents locally * ​Launch your first publicly available **multi-agent** system. * ​▶️ **9:00 pm:** Networking * ​▶️ **9:30pm:** Doors close ​**🔖 Requirements & Logistics** * ​**Level**: **Beginner friendly**, no prior **multi-agent** experience required. * ​**Skills**: Basic experience with **Python**, **Google Cloud**, **Docker**, and **Bash** is a plus. * ​**Setup**: Bring a charged laptop and avoid using a **VPN** during workshop tasks. ​Let’s learn, build, and have a natter. See you there! #GDGCloudBerlin #GDG #BuildWithAI #GCP

We’re heading to Home24 for a proper building session! You are invited! Come along to meet the community, swap ideas, and get stuck into some hands-on work. Reserve the spot with RSVP. 🗓 Agenda: ▶️ 6:00 pm: Doors open with networking and snacks 🍕🍻☕ ▶️ 7:00 pm: Opening Keynote ℹ️ 7:10 pm: Home24 presentation ▶️ 7:45 pm: Workshop (📌Laptops are required. Please charge them in advance!) Master the fundamentals of ADK and multi-agent systems. Design agents with specialized, clear responsibilities. Test and run agents locally. Deploy a multi-agent application to Google Cloud. Launch your first publicly available multi-agent system. ▶️ 9:00 pm: Networking ▶️ 9:30pm: Doors close 🔖 Requirements & Logistics Level: Beginner friendly, no prior multi-agent experience required. Skills: Basic experience with Python, Google Cloud, Docker, and Bash is a plus. Setup: Bring a charged laptop and avoid using a VPN during workshop tasks. Let’s learn, build, and have a natter. See you there! Agenda --- Hosted By Yevgen Batovskyi, Organizer Esra Kadah, Organizer Senior App Developer | Author of "Flutter Design Patterns & Best Practices" | Co-Organizer of Flutteristas, Flutter Berlin, GDG Cloud Berlin, Flutter Community AI Circle | 👩🏼‍💻 Antigua Mobile Hany Elfouly, Co-founder & CEO Mohamed Islem Ayari, Organizer --- Partners Google (https://blog.google/intl/de-de) home24 (https://home24.career.softgarden.de) --- Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-cloud-berlin-presents-build-with-ai-hands-on-workshop-home24-1/.

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

✨ The registration is via **LUMA**: [https://luma.com/3ts2ahdc](https://luma.com/3ts2ahdc) ✨ Hi PyLadies Berlin! We’re excited to invite you to our next **PyLadies Berlin meetup**, hosted by **d-fine** at their office in Berlin! This workshop introduces you to the core concepts related to data agents and enables you to extend a **multi-agent using Pydantic AI.** 🎤 **Building AI Agents with Python: Approaches & Challenges** 🗓️ When? **Thursday, May 21 from 6:15pm** 📍Where? **d-fine** 📚 Get ready for a practical session this month, as we will extend a multi-agent’s capabilities together **Anne Sehnal** and **Cassandra Milbradt** invite you to an exciting, highly relevant workshop on agentic systems in the era of LLMs. The session covers core concepts including capabilities, multi-agent architectures, and tool usage, with a hands-on look at popular Python libraries and enterprise tools for building agentic systems. Participants will get practical experience by extending a multi-agent setup using pydantic-ai and pydantic-graph. The demo-agent that will be extended was built by our speakers to enhance your learning experience. Prerequisites: Medium to advanced Python proficiency and an interest in agentic frameworks. ✨ **Cassandra Milbradt** holds a Master's and PhD in Mathematics from Humboldt-Universität zu Berlin. Her early involvement in a student consulting company set the tone for a career spanning machine learning, AI, software engineering, and energy markets. Today, she joins Anne to present "Building AI Agents with Python: Approaches & Challenges". ✨ **Anne Sehnal** holds a Master’s degree in Chemistry and Business Studies, with a focus on energy systems modelling and battery technology. Starting from complex system simulations, she moved into data analytics and now designs data architectures, building analytics platforms for energy companies, including in energy trading. Today, she joins Cassandra to share perspectives on building and applying AI agents on robust data foundations. [✨](https://emojipedia.org/sparkles/) **D-fine**, our amazing host, is a European consulting firm, which by means of scientifically minded employees, provides innovative and future-proof solutions through sustainable technological implementation. \*\*\* 📆 Agenda 18h15 Doors open 18h30 Community Announcements 18h40 Welcome from our sponsor d-fine 18h55 Speakers present themselves 19h10 Introduction to (multi-) agents 19h30 Agentic frameworks in Python and the Industry 20h00 Short break 20h10 Coding exercise: Extend the Demo-Agent 21h10 Networking 22h00 See You Next Time! :D \*\*\* ❓ How to register ❓ The registration is over the Luma portal in the link below. [https://luma.com/3ts2ahdc](https://luma.com/3ts2ahdc) Our host would love to get to know you, so feel free to additionally register with them via their talent pool (see link below), then their recruiters can reach out to you! [PyLadies @ d-fine](https://jobs.d-fine.com/de/jobs/30494/intro) Since there is **very limited space, please be mindful and cancel your participation if you are not able to attend the workshop,** so someone else can enjoy the pleasures of maths and coding. Just a heads-up: Meetup has been promoting its Plus program recently, but there’s no need to sign up. Our events—and the platform itself—are still free to use. ❓ Can men attend ❓ Although allies are normally welcome at our events, this particular session is intended as a FLINTA\*-only due to the limited room capacity. 🍕 There will be food and drinks (with vegetarian and vegan options, **thanks to our sponsor d-fine**) 🤝 By attending our online event, you agree to the PyLadies Code of Conduct:[ https://www.pyladies.com/CodeOfConduct/](https://www.pyladies.com/CodeOfConduct/) \*Disclaimer: Please note that photos and filming may take place during this session, and you will be asked in person to consent to this as part of our event; this is only to cover d-fine’s side of the photo consent aspect. 📧 Contact Interested in speaking at one of our events? Have a good idea for a Meetup? Get in touch with us at[ berlin@pyladies.com](http://berlin@pyladies.com/) 💬 Find us on the PyLadies Global workspace: 1. [https://slackin.pyladies.com](https://slackin.pyladies.com/) enter your email address. Accept the email invitation 2\. Go to workspace[ https://pyladies.slack.com](https://pyladies.slack.com/) 3\. Join channel \#city\-berlin\, \#germany\, \#jobs\-europe

**The Vibe Coding Collective is a global community** helping anyone turn ideas into working software with AI. We host **relaxed social coding jams** and other vibe coding events in bars, cafés, and maker spaces. We started in London and have now launched events in Berlin 🇩🇪, New York 🇺🇸, Edinburgh 🇬🇧, Osaka 🇯🇵, Amsterdam 🇳🇱, and Lisbon 🇵🇹. **Details 🚀** This meetup is a **social coding jam** where we use AI to quickly turn fun ideas into functional prototypes. Whether you’re an experienced developer or have never written a line of code, you’ll fit right in. You can use any AI tools you like: **Google AI Studio, ChatGPT, Claude, Cursor, Replit**, whatever! And see what you can build together before the last orders 🍻 **Format 🛠️** After an opening presentation, we’ll be **teaming up in small groups** (2–3 people). Everyone gets a choice of several open-ended challenges, and then it’s heads-down building with your teammates. The goal is to **vibe, learn from each other, and see where the collaboration takes us.** **New to vibe coding? ✨** No worries! We begin with a simple starter guide with example prompts and tips so even total beginners can dive in without stress. *** **Schedule 🕒** *(Doors open early so we can settle in — aim to arrive by 2:50 PM so we can kick off on time)* * **3:00** – Presentation 🎤 * **3:15** – Assignment + team formation 🤝 * **3:15** – Build together 💻 * **4:40** – Optional demos 📺 * **5:00** – Hang out, network, make friends ✌️ *** **Who is it for?** **Anyone!** Curious coders, tinkerers, designers, artists, entrepreneurs, and anyone who wants to explore AI-powered creativity in a fun, social pub setting. **What to bring:** * **Laptop!** 💻 * **Vibes** ⚡ 👉 **No pressure, no gatekeeping.** Just good people, fun ideas, and some fast-paced collaborative building. **Event Information:** * Facilitator: **Poppy Astrini** [linkedin.com/in/poppyastrini](https://linkedin.com/in/poppyastrini?utm_source=luma) * Language is in **Dutch** and **English** * Coffee and tea will be provided **Location 📍** Het Stationshuis, Marcellus Emantspad 1, 2624 VD Delft, Netherlands

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right. Ask the barista/bartender if you can't find us.

**Join us for a swim at Stadtbad Tiergarten Pool (near Hauptbahnhof)!** Hey everyone, We are doing a casual non-professional swim. It's an indoor heated (+26°C) pool, and I'd love for you to join us! We'll be gathering for a casual chill 30-minute swim. No need to race or compete, just enjoy the water and calm after completing the swim. Afterwards we go to a nearby café for coffees and chat, but no pressure to stick around - totally optional! **Bring** * swimsuit * towel * 1 Euro coin (for a locker) * ticket (5.50€, buy online or on site) **Where** In the entrance hall inside the pool.

Meet, Match, MoveOn and Manage or Master Why Meet 1)Meet new People Culture Languages. 2)Not Match Romance, Political Views nor Religion, only Respect and Joy 3) Moveon, advance with your level, goals, and especially share and try Rotate the groups and let others participate a bit. 4) Master the challenges, and Manage to give a Like or appreciate the meetups!! **Thematic** or small Concept: Manage to Bring 2 German Friends and you get a Drink. if you bring your Ex Partner + 2 German friends =2 drinks = thats the Challenge and the Attitude of 2026

Meetup -> Teamup -> Startup After or FirstFriday Meetup we connect Entrepreneurs in our OpenSpace format. How it works: In this high-energy "unconference" format, there are no pre-set speakers. Instead we introduce ourselfs and share our challenges to find together solutions or present our pitchdecks to get valuable feedback. Join us in our next inspiring session. Entrance is free. Please bring some snacks instead. ***

RSVP on Luma: [https://luma.com/y7jwd3nm?utm_source=Meetup](https://luma.com/g59otttt?utm_source=Meetup) Silent Reading / Creating Club is a gathering for people who enjoy focusing together in public. Bring a book, a notebook, a sketchpad, knitting needles, whatever you’d like to spend a quiet hour doing. All projects and all participants are welcome. We’re building a community of readers and creators who value depth, presence, and shared silence. The reading and creating isn't the real highlight, though, it’s in the people who return and make it feel like a familiar room. (Please RSVP “yes” only if you can make it, so we can save a seat for you and others on the waitlist.) Our Meeting Point is the **W66 Café**. There’s no entrance fee, but please order at least one item from the café and don’t bring outside food or drinks 🙂 No assignments, expectations, or pressure. Just a shared hour of intentional silence, followed by the opportunity for good conversation. 🕰 Our Agenda **10:30 – 11:00** Arrivals, ordering drinks/food, light social time **11:00 – 12:00** The Great Quiet Hour (Read. Write. Sketch. Code. Think. Sit.) **12:00 – 12:30** Optional socializing: share what you were reading or creating, or simply continue in quiet focus. ## 🏡 House Guidelines To keep this space calm and welcoming for everyone: • Silence during the focus hour (no calls or conversations) • Put cellphones on silent mode • If using technology, please avoid meetings or audio (headphones please!) • Arrive before 11:00 if possible to minimize disruptions

A space for working on projects & learning new stuff together. 💻☕️ Please RSVP if you intend to join, as we have limited space. 😊

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

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)

**Welcome to Drunken Philosophy** a casual, curious social discussion **Optional topic for this meetup: What's up with all the AI hate?** A recent survey found that 74% of Americans have a negative view of AI, and I want to know why. Come out and debate whether AI is good or bad. My hot take: a labor-saving tool that could potentially help cure cancer gets called dangerous because it might raise unemployment or cause a speculative investment bubble, that tells you a lot more about capitalism and the economic system we live under than it does about the tool itself. As a computer programmer, I think AI is a wonderful tool that has increased my productivity by at least an order of magnitude. I'd go so far as to say Claude Code is the best tool I have ever used. Debate me and name a better one. Is AI potentially dangerous? Yes, but so are a lot of tools. Chainsaws. Steam engines (early ones would occasionally explode and kill everyone in the room). Do you think cavemen sat around debating whether fire could be used as a weapon or for self-harm, and decided not to discover it? I have two friends who hate AI for opposite reasons: one thinks it's a fad and not useful, and the other thinks it's going to take over everything and cause human extinction. Come out tonight, have a friendly debate, and make some friends. No lectures. Friendly crowd. Drop in for one drink and stay if it's fun.

* Who Can Attend \* The Central Ohio .Net Developers Group meetings are free and open to the public! All developers; professional, student, and hobbyist are welcome and encouraged to attend. * When we meet \* The Central Ohio .Net Developers Group meets on the 4th Thursday of every month. * Where we meet \* Please check our Meetup group link below for the latest location details! * Join our Meetup Group \* https://www.meetup.com/Central-Ohio-NET-Developers-Group-CONDG/

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.