Clojure

In March we welcome [Valentin Churavy](https://github.com/vchuravy) to talk about the [Julia frontend](https://julialang.org) for LLVM. Valentin is a long-term contributor to JuliaLang, JuliaGPU and EnzymeAD. He is a Research Software Engineer at [JGU](https://www.uni-mainz.de/) and Uni Augsburg, and graduated from MIT where he did his doctorate in the [JuliaLab](https://julia.mit.edu/). Julia is a high-level dynamic programming language that is widely used in technical computing. Let's explore how Julia uses LLVM to target CPUs, accelerators and even synthesize gradients. 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!

Zalando is graciously hosting us for our first Meetup in 2026. And we are doing it a bit different: we have two rooms, and two talks in parallel. This gives you the opportunity to choose between two talks, for a total of four talks. This year, we’re especially happy to welcome Amazon Web Services as the food sponsor for our meet-up. Thanks to their support, our community can enjoy great conversations over great food — making the evening not only insightful, but also delicious. Meet the AWS experts Sikandra Chaudhary, Daria Aleshkova, and Narendra Tawar. Narendra will be delivering a talk on PostgreSQL and AI, sharing practical insights and real-world experience. We truly appreciate AWS’s commitment to supporting local tech communities and helping us create a warm, welcoming atmosphere for everyone. **PLEASE BRING YOUR PHOTO ID** **USE THE MAIN ENTRANCE TO BHW ON THE SIDE OF UBER ARENA** **Agenda** Two sessions run in parallel in rooms codenamed "Auditorium" and "Festival" **18:30** \- doors open: registration\, networking\, and drinks **19:00 - 19:05** Auditorium, "Event intro" by Sergey Dudoladov, Senior Database Engineer in Zalando. **Auditorium: Track A** **19:10 - 19:55** "How we made WarehousePG Open Source (again)" by Andreas 'ads' Scherbaum, a WarehousePG Principal Engineer at EDB and a Founding Member of PostgreSQL Europe **19:55 - 20:15** Networking, Q&A, and pizza **20:15 - 21:00** "From 20 seconds to sub-second: Speeding up CloudNativePG wake-ups" by Tudor Golubenco, CTO of Xata **Festival: Track B** **19:10 - 19:55** "The Role of PostgreSQL in the AI World" by Narendra Tawar, Sr Database Specialist SA, AWS **19:55 - 20:15** Networking, Q&A, and pizza **20:15 - 21:00** "Modernizing Postgres Communication with Hackorum", by Kai Wagner, Percona **21:00 - 22:00 Networking, Q&A, and pizza** **22:00 - The End** **Abstracts** **How we made WarehousePG Open Source (again)** WarehousePG is an Open Source fork of Greenplum Database, which by itself is a fork of PostgreSQL. The project was born after the upstream project was made closed source. This talk gives a quick overview of the history of both projects, which already spans more than two decades. We then dive into the reasons for creating a fork, and all the stumbling stones we had to pass in order to make this project open source again. We also talk about the challenges of CLAs (Contributor License Agreements) and what implications the PostgreSQL and Apache Licenses have for the project. Speaker: Andreas 'ads' Scherbaum **The Role of PostgreSQL in the AI World** As artificial intelligence (AI) continues to revolutionize industries, the need for robust, scalable, and efficient data management solutions has never been greater. PostgreSQL, with its extensibility, performance, and advanced data capabilities, plays a crucial role in enabling AI-driven applications. This talk explores how PostgreSQL supports AI workloads, from managing vast datasets and integrating with machine learning frameworks to leveraging extensions like PostgreSQL ML, TimescaleDB, and JSONB for AI-ready storage and querying. Attendees will gain insights into best practices for using PostgreSQL in AI pipelines, optimizing performance for AI inference, and harnessing the power of open-source innovation to drive intelligent decision-making. Whether you're a data engineer, AI researcher, or PostgreSQL enthusiast, this session will showcase why PostgreSQL is an essential component in the AI ecosystem. **From 20 seconds to sub-second: Speeding up CloudNativePG wake-ups** CloudNativePG (CNPG) is a popular and battle-tested operator for running Postgres on top of Kubernetes. At Xata, we’ve been using CNPG and extending it in several different directions. One of them is implementing a scale-to-zero plugin: clusters hibernate when inactive and they wake up automatically when new connections are created. After adding scale-to-zero, we’ve faced the challenge that the CNPG wake-up from hibernation is rather slow.This is an optimization story about how we reduced the wake-up times from 20+ seconds to under one second. Speaker: Tudor Golubenco **Modernizing Postgres Communication with Hackorum** In 2026, the debate over whether mailing lists are still "state of the art" continues to divide developers. While some view them as relics, we cannot neglect the unique benefits of their decentralized, archival nature. Rather than fighting over platforms or ignoring the friction, Hackorum asks a simpler question: Why not just improve the user experience? Hackorum transforms the daunting mailing list "firehose" into a modern, forum-style interface without breaking the underlying email culture. It is designed to lower the barrier for new contributors while providing power tools for veterans: Seamless Integration: Real-time sync between mailing lists and daily sync of the Commitfest status. Modern UX: Per-message read tracking, tagging, and contributor profiles. Enhanced Coordination: Shared notes and mentions to streamline complex reviews. We have to stay open minded and willing to expand our horizon and as such Hackorum is rapidly evolving. While our roots are in development, we are currently expanding to include broader mailing lists like -general and -docs. Our goal is to make the entire Postgres ecosystem more accessible and usable for everyone. Join us for a demo of the latest updates and help us shape the future of Postgres communication. Speaker: Kai Wagner **About the speakers** **Andreas Scherbaum** has been working with PostgreSQL since 1997. He is involved in several PostgreSQL related community projects, member of the Board of Directors of the European PostgreSQL User Group and also wrote a PostgreSQL book (in German). Since 2011 he was working for EMC/Greenplum/Pivotal and tackled very big databases. Until 2024 he was doing the same - but with maybe even more and bigger databases - for Adjust GmbH in Berlin. Now he's working at EDB as WarehousePG Principal Engineer and is helping customers with even larger databases. **Tudor Golubenco** is the CTO of Xata, a Postgres platform with branches and zero-downtime, reversible schema changes. Before Xata, Tudor worked as a tech lead at companies like Elastic and Oracle. **Narendra Tawar** \- Sr Database Specialist SA I am accomplished database professional with 21 years of comprehensive experience across Oracle, PostgreSQL, Microsoft SQL Server, and MySQL environments, with specialised PostgreSQL expertise since a decade. Currently serving as a Senior Data Migration Specialist at AWS, I architect and execute complex enterprise migration strategies while actively expanding into Generative AI technologies to enhance migration efficiency and optimize data workflows. My core competencies include database architecture, performance optimization, migration planning, and cross-platform data integration, combining decades of hands-on experience with modern cloud methodologies to deliver scalable, reliable data solutions that bridge traditional database principles with emerging AI capabilities. **Kai Wagner** \- I’m Kai\, a Senior Engineering Manager at Percona with almost two decades of "bleeding" open source in my DNA\. From the Linux Kernel and Ceph at SUSE to leading PostgreSQL development today\, my career is built on a foundation of transparent communication and community\-driven innovation\. In my free time\, I'm a handball\, agility and movement coach for various ages and teams\, next to spending time with the family and on the house\. **Note** We will again take notes who signs up and does not show up. This information will be used to provide seats to others at future events. Plain and simple: please only sign up if you plan to attend.

Ready to flex your architectural muscles… with a new twist? Join us for our first **AI-Enabled Architectural Kata**, where we'll tackle a real design challenge together, using generative AI as a collaborator in the architectural process. Small teams will work through a complex scenario, but this time each team gets a unique **AI collaboration role** that shapes how they interact with AI during the session. Expect lively debate, creative solutions, plus an honest reflection on where AI helps and where human judgement still reigns supreme. **Mark your calendars for Thu, Mar 5,** and join us at **Thoughtworks Event Space** for an engaging evening dedicated to software design and architecture. Whether you're a seasoned architect, an AI-curious developer, or just passionate about software design, this meetup is the perfect platform to share, learn, experiment with new ideas and meet passionate people. **Event Schedule** * **18:15** – Doors open for snacks, drinks, and socialization * **18:45** – Introduction * **19:00** – **AI-Enabled Architecture Kata**: Small teams' work session * **20:30** – Presentations by teams **❓ What is an Architectural Kata?** Inspired by the concept of “Code Kata,” Architectural Katas are exercises that allow architects to practice their skills in a real-world scenario. It's about honing our craft in software design through practical, hands-on challenges in small groups. Read more about Architectural Katas on [Neal Ford](https://nealford.com/katas/about.html)'s website or on the [original Katas site](https://www.architecturalkatas.com/) by Ted Neward. **What makes this one AI-Enabled?** Building on the classic Architectural Kata format, this edition adds a new dimension: **AI as a team member**. Each team receives a unique role card that defines how they collaborate with AI during the session. The goal isn't to see who can prompt the best. It's to explore together how AI changes the way we think about, discuss, and communicate software architecture. **What to bring** Please have access to at least one AI tool on your phone or laptop (Claude, ChatGPT, Gemini, or similar). We'll provide a short prompting cheat sheet for architectural AI collaboration to get you started. No prior experience with AI for architecture work is needed! **Venue** **Thoughtworks Event Space**, Revaler Str. 31, 10245 Berlin *(Please note that this is a different entrance from the Thoughtworks office located at Revaler Str. 29)* **Sponsored by Thoughtworks** A big shout-out to [Thoughtworks](https://www.thoughtworks.com/) for sponsoring our event and supporting our mission to foster a tight-knit community of software design practitioners. **Code of Conduct** We adhere to the [Berlin Code of Conduct](https://berlincodeofconduct.org/) to ensure a welcoming and respectful environment for all participants. **Spread the Word** We believe the more, the merrier! If you think this meetup resonates with your friends or colleagues, please feel free to share this event with them. Your personal recommendation would not only enrich our community but also enhance the overall experience for everyone involved. You can easily share this event by forwarding this invitation or sharing our event link on social media. Let's grow our community together and make this inaugural meetup a memorable and valuable experience for everyone! **Hosting and Sponsorship Opportunities** Interested in hosting or sponsoring future events? Check out our [Sponsor proposal](https://docs.google.com/document/d/1tXMpuB3L0x1lQKsDgO2YftWx6LATfMZADwrZwP2Ylg0/edit?usp=sharing).

**Queer Bridges Language Café // Sprachcafé** with ***Michal*** for **LGBTQIA+** **[Free event with registration](https://wearevillage.org/en/shop/language-cafe/w03-2026)** 🔵 Join us at our Language Café, where you can connect with others and engage in lively conversations. It’s a great opportunity to practice speaking, listening, and even learn some new vocabulary, all while making new friends and having a good time. No matter your level of proficiency, everyone is encouraged to participate and grow together. Come for the conversation, stay for the community! **What languages are represented?** We will have tables for English and German. Beyond that, it will be up to you! We hope to eventually host a wide range of languages and are excited to see this café grow with your support. **What if I don’t feel confident in my language skills?** Our language café is open to everyone, regardless of their language abilities. From beginners to native speakers – we will ensure it is a fun and safe space for everyone. Registration is required as it gives us an idea of how many people to expect and which languages you speak/look forward to practice. However, if you have not registered please feel free to stop by! Join us at our **Language Café**, where you can connect with others and engage in lively conversations. It's a great opportunity to practice speaking, listening, and even learn some new vocabulary, all while making new friends and having a good time. No matter your level of proficiency, everyone is encouraged to participate and grow together. Come for the conversation, stay for the community! *** This meeting is part of our **Queer Bridges** project, aimed at forging connections and providing resources for LGBTQIA+ people with migration experience. *** **General information** * **Language**: This event will be in German and English. * **Registration**: Register on our website by selecting the event, adding it to your cart, and completing checkout. If you have any difficulties registering for the event, you're still welcome to join us, and we will find a solution. * **Cost**: This event is free of charge. 🔵 *Kostenlos mit Anmeldung über unsere Webseite* Kommt zu unserem **Sprachcafé**, wo ihr euch mit anderen austauschen und an lebhaften Gesprächen teilnehmen könnt. Es ist eine großartige Gelegenheit, eure Sprech- und Hörfähigkeiten zu verbessern und neue Wörter zu lernen, während ihr in lockerer Umgebung neue Bekanntschaften knüpft. Egal, wie gut ihr die Sprache könnt, alle sind eingeladen mitzumachen und zusammen zu lernen. Kommt wegen der Gespräche, bleibt wegen der Gemeinschaft! **Welche Sprachen sind vertreten?** Wir werden Tische für Englisch und Deutsch haben. Darüber hinaus liegt es an euch! Wir hoffen, bald viele verschiedene Sprachen anbieten zu können und freuen uns darauf, dieses Café mit eurer Hilfe wachsen zu sehen. **Was, wenn ich mir in meinen Sprachkenntnissen nicht sicher bin?** Unser Sprachcafé ist für alle offen, egal, wie gut ihr die Sprache könnt. Von Anfänger\*innen bis zu Muttersprachler\*innen – wir sorgen dafür, dass es für alle eine lockere und sichere Umgebung ist. *** Dieses Meeting gehört zu unserem **Queer Bridges** Projekt, das darauf abzielt, Verbindungen zu schaffen und Ressourcen für LGBTQIA+ Menschen mit Migrationserfahrung bereitzustellen. *** **Hinweise** * **Sprache**: Dieses Event wird auf Deutsch und Englisch sein. * **Anmeldung**: Melde dich auf unserer Website (für das Event) an, indem du die Veranstaltung auswählst, sie in den Warenkorb legst und dann den Kauf abschließt. Das gilt auch für kostenlose Events. Wenn du irgendwelche Schwierigkeiten hast, dich für eine Veranstaltung anzumelden, kannst du gerne zu uns kommen und wir werden eine Lösung finden. * **Kosten**: Die Teilnahme ist kostenlos.

Finally, it’s happening! [Value Rebels](https://www.valuerebels.com/) are thrilled to invite you to another [Product Management Night](https://productmanagementnights.com/), this time in the inspiring office of [Babbel](https://uk.babbel.com/). Under the banner “Staying Relevant: Data, innovation, and the architecture of decision-making”, we’ll explore how to stay innovative in a fast-changing environment and what it really takes to make meaningful, data‑informed decisions in a world saturated with signals. 📅 **Date**: March 5th 📍 **Location:** Babbels office at [Andreasstraße 72, 10243 Berlin](https://maps.app.goo.gl/PNNNehcW9GmBdf6T7) 🥂 Drinks & Finger Food Provided (veggie/vegan) **Timetable** 18:00 \| Doors Open: Networking over drinks and light food 18:45 \| Intro and hello from Value Rebels and Babbel 19:00 \| “Escaping the innovator’s dilemma: How established companies stay disruptive” \- An on\-stage discussion with [Diana Pulnar](https://www.linkedin.com/in/diana-pulnar-51781b13/) 19:30 \| Break 19:40 "What data-driven, actually means in 2026" - A talk by [Markus Kiefer](https://www.linkedin.com/in/markus-kiefer-979372388/) 20:10 \- 21:00 \| Closing & Networking (Please note: times are approximate) **Get to know our experts & speakers** 🎤 **[Markus Kiefer](https://www.linkedin.com/in/markus-kiefer-979372388/)**[ ](https://www.linkedin.com/in/markus-kiefer-979372388/)is a Tech & Data Consultant passionate about turning data into better product decisions. He works with product and engineering teams to design data-driven systems and helps organisations not just to understand their users but the systems that increasingly decide for them. 🎤 **[Diana Pulnar](https://www.linkedin.com/in/diana-pulnar-51781b13/)** is VP Product at Babbel, where she leads teams that translate speech technology and learner insights into concrete outcomes. She focuses on product strategies that balance data with real learner behaviour and uses experimentation to keep decisions anchored in results for learners. **Why join us?** * **Discover how to stay relevant:** explore how established teams handle innovation, trade‑offs and the tension between today’s business and tomorrow’s bets. * **Rethink what “data‑driven” means:** move from more dashboards to understanding the whole system behind your product decisions. * **Connect with peers who get it:** share experiences with senior product, tech and data people facing similar constraints and ambitions. **Who should attend?** Product Leaders & Drivers C-level & Business Leaders Experienced product contributors 🚨 Limited spots available - reserve yours only if you’re sure you can join! 📸 **📸 Please note:** We will be capturing event photos for promotional use. Let us know if you prefer not to be photographed. Photos are only taken of people who give consent on site. You can always say no or change your mind on the day or by emailing employerbranding@babbel.com 🔜 Looking forward to seeing you on March 5th

Wissen verändert die Welt. Mach Mit! Du hast Wikipedia in der Schule, der Uni oder woanders genutzt und dich schon immer gefragt, wie die Artikel entstehen – und möchtest tiefer einsteigen? Dann aufgepasst: **Jugend editiert** richtet sich speziell an junge Leute bis 25. Wir treffen uns immer am **1\. Donnerstag** im Monat. Zusammen erleichtern wir Neulingen den Einstieg in die Wikipedia und tauschen uns aus. Erfahre die vielfältigen Möglichkeiten, wie du deine eigenen Interessen einbringen kannst, so dass auch die Gesellschaft davon profitieren kann. Für eine Betreuung von minderjährigen Teilnehmenden wird durch Wikimedia Deutschland gesorgt, es gelten die [Hausordnung des WikiBär](https://de.wikipedia.org/wiki/Wikipedia:WikiB%C3%A4r/Hausordnung) und die Regeln des Jugendschutzgesetzes. 🕖 Termine: immer am 1. Donnerstag im Monat ab 18.00 Uhr ℹ️ Aktuelle Termine: [https://w.wiki/tv](https://w.wiki/tv) Die Teilnahme ist kostenfrei, vor Ort können Leihrechner zur Verfügung gestellt werden. Minderjährige ohne Begleitperson melden sich bitte über die E-Mail-Adresse an, damit ihr eine Einverständniserklärung für Erziehungsberechtigte erhaltet und ausgefüllt mitbringen könnt: [community@wikimedia.de](mailto:community@wikimedia.de) P. S.: Auch wenn die Teilnahmezahlen hier niedrig erscheinen – wir bewerben das Event noch auf anderen Plattformen. Foto: Freddy2001, [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/4.0), via Wikimedia Commons

**PLEASE NOTE THE ADDRESS CHANGE! We're now at [w3hub.berlin](https://w3hub.berlin)** *[Qase](https://qase.io) is presenting the **eleventh** Meetup on Quality Engineering in Berlin.* *This time, we’re bringing you three deep-dive talks — all designed to challenge the way you think about quality, testing, and collaboration.* *As always, expect great conversations, snacks, and drinks. See you there!* **AGENDA** **1\. Mitesh Patel\, Technical Consultant \- Scientific Instruments @ Altum Solutions: *Food QA: Testing Tasting*** On this fine evening, we shall enjoy some food … and also learn why we enjoy it. Because tasting is really a form of testing for our brains — wetware QA in essence. But how do we reformulate this wetware testing into those familiar realms of software and hardware testing? It is not as simple as exchanging taste buds for test suites and bites for bytes. Just ask Big Food which spends billions on this same question: How can computers do taste tests like humans? Guided by the example of an ML/AI-powered scientific instrument for chemical analyses, namely, a spectrometer, this session addresses this question and explores the broader topic of QA in the food industry. Discover how food companies scale testing across scientific software, device hardware, and food/human wetware. So grab a spoon for this insider scoop on QA for food. **2\. Vitaly Sharovatov\, developer advocate @ Qase: *QA Myths Busting: A Practical Guide to Higher Quality*** Have you ever felt the urge to increase the amount of testing or hire more testers, thinking it would improve product quality? As a tester, have you ever been held “accountable” for quality or pressed for time, leaving you feeling helpless? Or perhaps you’ve been asked to justify quality assurance initiatives with numbers? Our industry is filled with myths: from “quality can be measured” to “more testing means higher quality” and from “QA slows down work” to “testers are responsible for quality”. In this talk, I will present the myths I once believed, explain the dangers they pose to both teams and products, and demonstrate how they should be debunked and overcome. **3\. Asya Isakova\, Co\-Founder @ TECH_Connect: 𝘌𝘢𝘳𝘯 𝘛𝘳𝘶𝘴𝘵\, 𝘒𝘦𝘦𝘱 𝘠𝘰𝘶𝘳 𝘑𝘰𝘣** The job market is wild: it’s hard to get hired, and sometimes even harder to stay hired. In a new role (or a new team), one of the fastest ways to reduce uncertainty and accelerate collaboration is to build trust quickly. But how do colleagues and managers decide you’re trustworthy? It’s rarely just about closing Jira tickets or moving cards on a Kanban board. People assess trust through patterns of behavior: what you do, how consistently you do it, and how do you act towards others. In this talk, you’ll learn an evidence-based approach to building trust at work using three practical components: integrity, reliability, and benevolence. We’ll unpack what shapes people’s trust judgments (including context, risk, and prior experiences) and translate research into concrete behaviors you can apply immediately: especially in multicultural and cross-functional teams.

Hi folks, this is the special meetup group for the weekly Sunday Blood on the Clocktower games at BRLO Brwhaus near Potsdamer Platz. We run beginner-friendly and intermediate-level games throughout the afternoon and evening. **Friendly newcomers of all skill levels are welcome, no experience required!** Our group aims to provide a fun and welcoming space to experience this thrilling game of social deception. **We focus on promoting a positive and fun group atmosphere, where players don’t take themselves or the game too seriously, whether they’re heroically winning or spectacularly losing.** Our players follow the code of conduct for the Berlin Board Gamers group and are expected to treat each other with respect and consideration – “killing with grace, and dying with dignity”. We are usually able to offer two simultaneous games on Sundays. If you are marked as "attending" in Meetup and are in your seat at 15:00, your place is guaranteed for as long as you want to stay. All other seats are first come, first served. We always run at least one beginner-friendly game of the basic version of Clocktower ("Trouble Brewing") throughout the afternoon and evening. We also usually have enough players for a second intermediate-level game. If you are already very familiar with Clocktower, consider also joining our Tuesday meetup for advanced players, when we play with complex custom scripts and characters. Blood on the Clocktower is a deep, mechanical game of murder and mystery, lies and logic, deduction and deception… think Werewolf on steroids. Each player receives a unique secret role and plays either for the good team – the uninformed majority, gathering info and working with others to solve the puzzle – or the evil team, the informed minority, scheming to eliminate good players and protect their demon from execution. In our beginner games no prior experience is expected and we will gladly explain the game rules to any newcomers. We play in English so players should be able to understand and express themselves in English: an exception is possible for one pair of players willing to play together (as a “Revolutionary” pair) where one player can interpret into and out of English. Please let us know in advance if this is the case. We are very grateful to our wonderful hosts at BRLO, and we ask all our players to support the venue by purchasing some food and/or drink during the event.

**⭐ NEW LOCATION! ⭐ PLEASE ARRIVE BEFORE 8PM! ⭐** The Creative Code Stammtisch is a casual show-and-tell for artists, makers, designers, coders, 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. Beginners and first-timers should feel especially welcome! You don't have to be a coder yourself 😃 HOW TO FIND US? Find Prachtsaal Studio by crossing the courtyard next to Cafe Augusta on Jonasstr. 22, 12053 Berlin. **NOTE: NEW LOCATION!** WHAT SHOULD I EXPECT? We start with quick introductions, then open the floor to anyone who wants to present something. There are usually around six 10-minute slots available, plus time for questions from the audience. First-timers are encouraged to share their work. Topics range from net art to computational design and interactive installations all the way to wearable electronics or generative poetry. If you’re wondering whether your own project might fit, take a look at the [Stammtisch archive](https://creativecodeberlin.github.io/Stammtisch/) to see what others have shared in the past. This event is *not* just for coders! New-media artists and anyone working with technology in their art are very welcome to share. If you enjoy art and/or technology, you’ll likely have a great time, and maybe even learn something new! BEGINNERS WELCOME! If you’re new to creative coding, you can find beginner-friendly resources at [creativecode.berlin/learn](https://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: [berlincodeofconduct.org](http://berlincodeofconduct.org/) Please read and make sure you agree with its content. ACCESSIBILITY Prachtsaal Studio is located on an easy to access ground floor. We're very sorry to say that the bathrooms are not wheelchair accessible yet. DO I NEED TO SPEAK GERMAN? We speak mostly English so international guests are more than welcome! Our team also speaks French, 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 (0) 176 70070572 or get in touch via [creativecode.berlin](https://creativecode.berlin/) *** The featured artwork of the month is by aBe. We'd love to feature your work on the cover for the next Stammtisch! Please send an image at team@creativecode.berlin

📅 **Week 7: Presentation Day!** Each 7-week cycle focuses on a small, well-defined part of a larger system—and over time, these cycles build toward a complete, real-world project Feel free to join at any week and we will catch you up. There is no need to be at the beginning of the cohort to build. Complete beginners welcomed! 📌 By the End of a Full Cycle, You should Have 🎯 A working project in your own GitHub repo 🎯 A small but real portfolio piece you can demo or write about 🧠 **Current Project** This cycle’s shared project is an **image-based knowledge extraction system**. In **Week 7**, we celebrate and present. This is our **Showcase Night**. Participants will: * Present their project (5–10 minutes each) * Demo their pipeline or flashcard system * Share challenges, lessons learned, and technical decisions * Give and receive thoughtful feedback We’ve come a long way — from raw images on our phones to a complete, working portfolio project — and this week is about learning to clearly explain your ideas, your challenges, and the technical decisions behind your work. \*\*\* **👋 Who Is This For?** 🔹 Beginners who learn best by doing — no prior experience needed 🔹 Career switchers from product, engineering, design, marketing, or other fields who want to break into data 🔹 Analysts, engineers, and PMs looking to sharpen their skills or build real-world projects 🔹 Data professionals who want a creative playground outside of work 🔹 Anyone with big questions and a love for learning through experimentation \*\*\* **BUILD. LEARN. EXPERIMENT. OVER COFFEE.** Come hang out, meet like-minded people, and work on something fun. 📍 Based in Berlin – in-person meetups only (for now!) 💻 Laptops + ☕ highly encouraged Join our Discord → [https://discord.gg/dPnmzcCP8w](https://discord.gg/dPnmzcCP8w) Check out our program resources: [Google Drive](https://drive.google.com/drive/folders/15DmZqD4bLBk2vU4zpvh1HiB3_5n09v-q?usp=sharing) \*\*\* ✨ Who’s Hosting? I’m Lindsey, a senior data scientist working on AI, causal inference, and data products. I’ve built models for fraud detection, uplift modeling, and LLM-based systems. I am always open to suggestion for different format for this meetup.

Hi, dieses Mal besprechen wir den schmalen Erzählband „Der Ausflug der toten Mädchen“ von Anna Seghers (1946) Hier der Link zum Inhalt und Buch : https://www.aufbau-verlage.de/aufbau-taschenbuch/der-ausflug-der-toten-madchen/978-3-7466-3470-8 Wir treffen uns diesmal im Cafe Atlantic in der Bergmannstraße nahe U-Bahnhof Gneisenaustraße. :)

Silent Book Club is a group of book lovers who enjoy reading together in public. All books and all readers are welcome. (Kindly RSVP 'yes' only if you can make it, so we can save a seat for you and our fellow readers on the waitlist!) This page-turning party will unfold in the Café (1st floor) at the Bode Museum. There's no entrance fee, but please order at least one item from the cafe and don't bring any outside drinks :) No quizzes, no pressure, no assigned books - just a group of book-loving souls basking in the beauty of silent reading. **Our thrilling agenda:** 10:30 am - 11:00 am - Arrivals, ordering drinks/food (social time) 11:00 am - 12:00 pm - The Great Quiet Reading Hour (where silence is the star) 12:00 pm - 13:00 pm - Optional socializing, share your reading adventures or just keep exploring the pages Stay for lunch, and who knows? You might just find your next favorite book over a pizza. NB: If you plan to go for lunch, please consider bringing cash, as some restaurants only accept card payments after a certain amount.

Join us for an upcoming in-person Lean Coffee meetup. Lean Coffee is a lightly-structured meeting format where the attendees create the agenda. Bring your management challenges; whether you're managing people, products, processes or beyond, and solve them together with peers from a diverse set of backgrounds. This event is great for anybody trying to create better ways of working and wants to share with + learn from others trying to do the same.

Come along, grab a coffee, shut up, and write! We will do at least two sessions of each 45 minutes of writing and two breaks. We will start the first writing session at 11:15. **For space reasons, we are limited to a certain number of attendees, so please update your RSVP if you can't come**. We often have a large waiting list, and not updating your RSVP or not showing up if you do RSVP yes means that others miss out. We also ask that if you do change your RSVP, do it with reasonable notice. Thanks! We typically take over all of the cafe, but try to share tables if you can to allow space for other customers. If you are new, come and say hello, as we know that suddenly going quiet for 45 minutes and staring at that blank page can be intimidating when it's your first time. We have a lot of long-term regulars who will be happy to help you feel welcome. In between sessions, we have a Telegram chat: https://t.me/joinchat/ERW3pxD5kfELGeWs9SUhjw For more information, visit [https://shutupwrite.com](https://shutupwrite.com/).

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**Welcome to the Brain Injury Alliance of Kentucky’s Support Group.** *\*\*This meeting has been moved to the 4th Monday of each month.* This group is a safe space for **survivors of traumatic and acquired brain injuries**, as well as their **families and caregivers**, to find support, share experiences, and connect with others who understand the journey. Whether you're newly injured, a longtime survivor, or supporting a loved one, you’ll find comfort, information, and encouragement here. Our professionally facilitated groups offer a confidential, compassionate setting for healing, learning, and growing together. Join us to discover the power of community—because no one should walk this road alone. *All survivors of ABI/TBI and those who care for them are welcome.* \* This meeting is for persons with brain tumors and their guests. \*\* This is a hybrid meeting. For those meeting in-person dinner is served at 5:45pm. Online begins at 6:30pm.

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 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 topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems: * Using running totals * Performing operations in intervals * Identifying data gaps and islands * Performing aggregates without losing detail Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Join membersrs of the Central Ohio UX and digital design community for a casual monthly breakfast.

Sleep in on Sundays. When you've had your fill of pajama-time, roll out and have some tasty brunch with your fellow Humanists!