Complexity

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!

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

✨ Women in Agile Berlin Event ✨ Deep Work, Real Impact – Reclaiming Focus in a World of Endless Tasks Somewhere, not that far away, a talented woman is not struggling because she lacks skill, ambition, or drive… …but because her day is filled with everything except the work that truly matters. Admin. Coordination. Emotional labor. The invisible glue that keeps everything running, but slowly pulls focus away from real impact. Have you ever ended a full day and wondered: 👉 What did I actually move forward today? 👉 Why does being “busy” not feel meaningful? 👉 When was the last time I worked with real, uninterrupted focus? The idea that some people are “natural multitaskers” sounds like praise, but in reality, it often hides a system that rewards constant availability over meaningful contribution. At our next Women in Agile Berlin event, Saskia Ruschke will explore why deep, focused work is one of the most powerful, and most underprotected, resources we have. ✨ Together, we will explore: • Why constant task switching drains more than just time • How invisible work quietly takes over our days • What it really takes to protect focus in modern work environments • Practical ways to create space for deep work again 👉 What would change if your focus was truly protected? 👉 What kind of impact could you create then? Join us for an evening of reflection, practical tools, and honest conversation. #deepwork #impact #focus #meetup #agile #scrum #meetupberlin #womeninagile #womeninagileberlin

**🎟️ Get your tickets here: [https://thecomedysocialberlin21may2026.eventbrite.com/?aff=meetup](https://thecomedysocialberlin21may2026.eventbrite.com/?aff=meetup)** **New to Berlin & want to make friends?** Come to The Comedy Social! Featuring some of Berlin's funniest comedians! 🍹 Come for the comedy & stick around afterwards and mingle! 💃🏼🕺 **🗓️ WHEN:** Thursday, 21. May Show begins 20:30 Doors open 20:00 **📍 WHERE:** The Wall Comedy Club Grünberger Straße 84 10245 Berlin **🎟️ TICKETS:** Starting from €11 when booked online €15 at the door, cash or card (subject to availability) **💁🏼‍♀️ ABOUT ŽANA (BIH/USA):** Born in Bosnia, raised in Florida, and living in Berlin, Žana’s comedy mirrors her eclectic cultural background and is best described as Balkan pessimism battling delusional American positivity sprinkled in with reggaeton flair. Within 5 months of starting comedy she became a finalist in the 2022 Berlin New Stand Up Awards and is now hosting & producing shows in Berlin & across Europe. **She was nominated for Manchester’s Women in Comedy Festival Awards as Best Newcomer in 2024 and has opened in English & Spanish for a variety of comedians across Europe in such as Dragos Christian, Dwayne Perkins, Rob Anderson, Elena Gabrielle, TJ & Silvia de Frente.** You can catch her perform regularly in Berlin to hear her fresh take on the absurdity of immigration laws, her Balkan background, and growing up in Florida. Žana hosts & produces themed & interactive comedy shows in Berlin & beyond, such as the Berlin Comedy Dating Game Show, Funny Fortunes (a comedy & live tarot reading show), Comedy Confessions (an introvert-friendly themed interactive comedy show), Petty Problems (a comedy mock trial show), & more. **She has performed in 40 cities across 18 countries and all of her shows are 100% self-produced. Thanks for supporting an independent artist!** [www.zanafejzic.com](http://www.zanafejzic.com/) [YouTube](http://youtube.com/@ZanaFejzic) [Instagram](http://instagram.com/zanafejzic) [TikTok](http://tiktok.com/@zanafejziccomedy) **🎟️ Get your tickets here: [https://thecomedysocialberlin21may2026.eventbrite.com/?aff=meetup](https://thecomedysocialberlin21may2026.eventbrite.com/?aff=meetup)**

✨ 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

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!

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/.

**Berlin’s Only Comedy Show That Fixes Your Problems (Kind Of)!** Stand-up comedy meets hilarious, unqualified life advice! Comedians tackle your anonymously submitted problems live on stage—roasting, dissecting, and turning them into comedy gold. **Where?** The hidden Mitte gem —**Art.City.People** in **Heckmann-Höfe!** **When?** Doors: **8:00 PM** \| Show: **8:30 PM** Come for the stand-up, stay for the therapy—just bring your problems (or a friend with worse ones). Every show is a fresh mix of **four experienced comedians and new audience problems**—so you never know what to expect! Hosted by **Lena Stolby** — she’s Russian, so she *really* knows about problems! **&** We are a free entry pay-what-you-want show, and **have been running solely thanks to the support of the audience**, so to help us keep making this world a drama free place we **suggest a contribution of €12-15!** **Seats are limited, so book now!** The room gets very busy, so, to make sure you get a seat please book a seat via Eventbrite here (it’s free): https://www.eventbrite.com/cc/comedy-therapy-events-1626059

**Berlin's oldest comedy show where your problems become the punchlines. Real problems. Bad advice. Great comedy. Now in Friedrichshain too!** **A fast-paced showcase where comedians turn your anonymous problems into punchy on-stage therapy** Write down anything you want - from dating disasters to existential crisis & watch comedians solve it in the craziest way possible. ❗️**You stay anonymous, and we won't talk to you unless you want us to!** Perfect for introverts, overthinkers, and anyone who needs a laugh **Doors 20:00 \| Show 20:30** * Stand-up comedy + live "therapy" * Different lineup + new problems every show * A cosy, intimate vibe in Friedrichshain Every show is a fresh combo of stand-up brought by the guest comedian and advice from the host **Lena Stolby** — she's Russian, so she really knows about problems! & **THIS IS A PAID WHAT YOU CAN EVENT** We have been running solely thanks tolthe support of the audience. **Suggested contribution: €15** standard / **€12** reduced (student, unemployed)

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.

Chitta Walks is for people whose days move fast, while the mind never fully lands. Thoughts keep looping even when nothing is urgent. The body moves, but attention is elsewhere. Over time, this disconnect drains clarity and ease. This walk is a simple reset. We meet in Berlin’s Tiergarten and walk at a gentle pace. Parts of the walk are in silence, with light guidance and a few short prompts. The walk itself is the practice, bringing body and mind back into the same moment. No apps. No performance. Just a clear space to slow down and notice what is happening. If you want to slow down without withdrawing from life, join a Chitta Walk. ✨ **What to expect (approx. 90 minutes):** * A short arrival and orientation * A guided silent walk (phones off, no conversation) * One concise science-based impulse on attention or stress * Optional reflection in pairs or small groups * A simple takeaway or experiment for daily life 🚶**Who this is for:** * Professionals, creatives, and people in transition. * People who feel mentally busy and want more clarity and balance. * Those curious about mindfulness, but grounded and practical. * Anyone comfortable with silence and gentle self observation. 🔔 **Practical notes:** * Duration: 60-90 minutes * Wear comfortable shoes and weather-appropriate clothing * No prior experience needed * Group size is limited to keep the space quiet and focused 🧭 **Facilitator:** My name is Partha Sarathi, you can call me PS. I have lived in Berlin for over 12 years. With a background in physics and materials science, my interest in mindfulness grew through personal experience with stress and health challenges. I facilitate the space and structure of the walk, inviting shared exploration rather than instruction. 🤔 **Why Chitta Walks?** Chitta is a Sanskrit word referring to the mind or field of awareness, used here in a practical, non-religious sense. Chitta Walks is about noticing how the mind works by slowing down and walking together. Mindful walking makes thought patterns visible in real time, while moving and sensing in the world. The name points to a simple capacity: noticing what is happening in the mind without immediately trying to fix, judge, or optimize it. 🌿 **Possible effects:** A calmer nervous system. Clearer attention. A felt sense of being more present in your body. Subtle insights into how your mind reacts under everyday conditions. A quieter, more grounded way of moving through the city. **Come as you are. Walk. Notice. Leave with a little more space inside.**

Wie jedes Jahr versammelt sich die Bitcoin-Community in Berlin, um den legendären „Bitcoin Pizza Day“ zu feiern. Die Transaktion von Laszlo Hanyecz gilt als eine der ersten bekannten Zahlungen mit Bitcoin für reale Güter: 10.000 Bitcoin im Austausch gegen zwei große Pizzen. Zur Feier dieses historischen Moments treffen wir uns dieses Jahr im Restaurant Viale dei Tigli. Auch dort werden Bitcoin-Zahlungen akzeptiert und natürlich gibt es Pizza. **Bitte beachtet: Jede Person bezahlt ihr Essen und ihre Getränke selbst vor Ort.** Das Ganze ist als lockeres Get-together ohne feste Agenda gedacht – einfach zusammenkommen, austauschen und gemeinsam Pizza essen. Wir freuen uns über viele Teilnehmer. Da die Plätze begrenzt sind, bitten wir um möglichst verbindliche Zusagen. Vielen Dank.

**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

In diesem Workshop wagen wir uns an das vielschichtige Themengebiet *Liebe und Beziehungen* heran. Menschen sind Beziehungswesen: Zugehörigkeit, Verbundenheit, Nähe, Sexualität, Sicherheit und Geborgenheit zählen zu unseren Grundbedürfnissen. Für die meisten von uns ist eine erfüllte Partnerschaft eines der erstrebenswertesten Ziele im Leben. Wenn wir uns jedoch in der Gesellschaft und in unserem persönlichen Umfeld umsehen, scheint es, als wären wir kaum imstande, gesunde Beziehungen zu führen. Der Großteil von uns hat bereits mehrere Beziehungen hinter sich. Oft können wir nicht einmal klar benennen, woran sie gescheitert sind. Anhand der Erfahrungen, Beobachtungen und Interessen aller Teilnehmenden nähern wir uns den Fragen, die uns immer wieder bewegen. Wir erforschen, * was eine erfüllte Beziehung für jede:n bedeutet * was wir brauchen, um gelingende Beziehungen zu führen, * was uns dabei - persönlich und gesellschaftlich - im Weg steht, * und vor allem, wie wir daran arbeiten können. Wir forschen gemeinsam mithilfe des [re:nature® Kompasses](https://umainstitut.net/ueber-uns/renature-ansatz/). Dieses Lebensrad hilft uns dabei, komplexen Themen wie unseren Liebesbeziehungen eine Struktur zu geben. Angelehnt an die jahreszeitlichen Zyklen der Natur (Frühling - Sommer - Herbst - Winter) sind schließlich auch Beziehungen diesen Zyklen unterworfen: Verliebtheit - Commitment - Krisenzeiten - Trennung oder Neuausrichtung. Unser theoretisches Erforschen verbinden wir mit Übungen zur bewussten Körperwahrnehmung sowie mit kreativen Aufstellungen. Denn unser Ziel ist es, aus dem Erleben heraus neue Erfahrungen und Inspiration in die eigenen Beziehungen hinein zu tragen. Wir, Susanne und Ben, geben diesem Forschungsraum eine Richtung und einen Rahmen. Was dazwischen passiert, hängt von den Beiträgen der Teilnehmer:innen sowie der sich ergebenden Gruppendynamik ab. Persönliche Erfahrungen, drängende Fragen, Impulse und Ideen sind ausdrücklich erwünscht und sehr willkommen! Der Workshop ist offen für alle: ein inklusiver Raum für Menschen aller Geschlechtsidentitäten und sexuellen Orientierungen. Die Teilnahme erfolgt auf Spendenbasis. Bitte melde dich (zusätzlich) per Email an: [kontakt@benjaminpontius.de](mailto:kontakt@benjaminpontius.de)

**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.

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)

**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** TBD **YouTube Link** TBD

Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games! The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

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