Librarians

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.

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!

**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.

Hey everyone, welcome to our next Berlin Music Marketing Meetup. This time, we invited the GEMA to talk about publishing and royalties, but also about the institution itself and what they offer to musicians (songwriting camps, educational programs..). Special musician guest : [Antoine Villoutreix](https://open.spotify.com/artist/1LeuN4Zsd04HulaBIIRYVb?si=vCP2s-VHTu2u04dlml-dPg) Join this special event, make new connections with other musicians and industry pros, while learning something new about the music business. Everyone's welcome and the event is free. We look forward to meeting you there! Design by: [Weiter](https://weiterstudio.com/ "https://weiterstudio.com/")

This **coworking and networking** meetup is for neurodivergent people to get our tasks/projects/work done and to connect with other neurodivergent, whether for focus work or just finding someone who understands what you’re working on. **PLEASE READ THE EVENT DESCRIPTION BELOW:** So we can be self-accountable for our own comfort. **Location:** Werkräume inside Humboldt Forum [https://maps.app.goo.gl/Jw5totHbQadfsJsE8](https://maps.app.goo.gl/Jw5totHbQadfsJsE8) The **exact area** of Werkräume where we cowork will be updated in the **pinned comment on the event page**, as it is a public space and we cannot reserve a specific spot. **How to find Werkräume:** * **If you are starting from the Front Desk:** Find the large escalator behind the front desk. Go up to the 1st floor (one level above ground floor). * **If you are starting from the Humboldt Bistro:** go to the other building. Find the escalator and go up to the 1st floor (one level above ground floor). * **Final Destination:** On the 1st floor, look for the Werkräume sign. **What to expect:** * We usually use **[Pomodoro method](https://en.wikipedia.org/wiki/Pomodoro_Technique).** **When you are late** and the session has started, just take a seat and start working until break time. * However, **feel free to work with how you are most comfortable with.** What's important is, we all become accountability buddies. ✨ **Notes:** 1. **This a public place so bring your sensory management tools (earphone, stim toys, etc).** We can´t control the environment if there are other groups having their activities. 2. **The Werkräume can't be reserved** so we will all help each other by occupying the seats. 3. The place has wifi, locker and toilet. 4. The space has power plugs, but only in specific areas. Please ensure your devices are charged before coming. 5. **Food & drink:** there is a Bistro but pricey. Feel free to bring your own. **IMPORTANT:** No eating in the Werkräume. Use the public visitor seating instead. 6. **Bring a coin for the locker.** Security may ask you to store bags in the lockers outside the Werkräume. 7. **PLEASE EDIT YOUR RSVP if you can't come.** This helps us better manage the coworking session. Your update is much appreciated. 8. **All organizers are volunteers who are neurodivergent individuals.** We ask you to **be kind to us** and for your **support in making the event an enjoyable** for everyone. **Till then busy bees!**

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

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.

International Meetup for those who still like to follow the Peaceful teachings of Christ. We are free and curious humans, try to practice patience, kindness, humanity, etc, and have the freedom to read any book of the world, including the Gospels. Let's support each-other, upbuild faith, and find some like-minded friends in our community. (If you are a new believer, you are also welcome only if you have been practicing Christianity regularly for at least since last 3 years. )

This week we are discussing **Azar Nafisi:** Reading Lolita in Tehran. We look forward to seeing you! If you have book suggestions, would like to vote on our next reads, or join us for additional activities, please ask someone at the meeting to add you to our WhatsApp group. **Also, if you're unable to attend, please update your RSVP so that someone from the waiting list can take your spot.**

Ciao a tutti! For our event we would like to meet you at 17:00 and have a beer all together, or other drinks. The goal of our first meeting is to get to know eachother and practice Italian and German. Please don’t be afraid that your language skills might not be sufficiently good or that you are a beginner. We understand that learning languages is a difficult and long journey. We don’t tolerate discrimination. We don't tolerate any aggressive or weird attitude. This has to be a Place of Comfort zone for everyone :) Please be respectful and kind with the others! PS: you can find us on the pool table area usually, if not just ask to the bar area for the reservation on the name "Claudio" A presto, bis bald Claudio Ich hoffe dass wir bald uns sehen!

📚 **What’s the event?** A peaceful hour of silent reading in a beautiful library space, surrounded by fellow book lovers. 🧘‍♀️ **Perfect for you if you:** * Need an hour of focused, quiet reading * Are studying and want calm company * Want to meet new people without small talk pressure * Just love the vibe of libraries and stories *** ### **Reading Hour at Heinrich-Schulz-Bibliothek** **Need an hour of quiet, focused reading in a beautiful setting?** Studying for an exam and looking for some calm company? Want to meet new people while still getting your reading done on a weekend morning? If you answered yes to any of those questions, come join us at the beautiful Heinrich-Schulz-Bibliothek for a low-key, silent reading hour with fellow book lovers. Just bring your current read and enjoy the shared calm of collective reading. **Agenda:** * **10:00–10:30** – Arrivals & light socializing * **10:30–11:30** – The Venerable Silent Reading Hour (just you, your book, and the soft rustle of pages) * **11:30–12:00** – Optional social time: chat about your book, meet others, or just keep reading *** ### 📦 **What to Bring:** * **The book you're currently reading** (or studying) * **Yourself — just as you are** Come comfy, come curious — no sign-ups, no pressure, just a shared hour of peace. 🍽️ Afterward, we’ll head out for lunch nearby—come for the reading, stay for the company! **PS:** **Hi everyone!** Just a quick note ahead of our event at the **Heinrich-Schulz Library**: 🚪 Since we’re meeting **before the library officially opens**, the main doors might be locked. To avoid anyone being locked out, 📌 **Please arrive on time** — we’ll start settling in at **10:00 AM**. 📱 If you arrive and can’t get in, either knock on a window where the lights are on or push the button sitting on top of the metal pole where the door opener is. I'll come out and let you in. Looking forward to a calm, cozy morning of books and good company. See you soon! — Aneel

**For registration for this class see: [https://www.kang-center.de/taekwondo-berlin/#taekwondo-kurse-berlin](https://www.kang-center.de/taekwondo-berlin/#taekwondo-kurse-berlin)** We are an international group (speaking English, German and Korean), enthusiastic and ambitious learning the art of traditional Taekwon-Do, meaning full perfection and power but no contact. Our grandmaster Kang, Shin-Gyu is a student of famous grandmaster Kwon, Jae-Hwa, so that we can learn from the originals. Sounds sophisticated? It is - and also a lot of fun! Most of us are between 20 an 30 years old, half of them male and half female. But we welcome anybody any age! As a beginner you need nothing more than some comfortable sportswear. See you in Class!

\*\*\*\*\*\* ***For address and more details see the website www.pausify.org*** \*\*\*\*\*\* **Event Info:** Bring along your **current book to read** (or something **creative** to work on ) and join us for this mix of a shared focus time + discussion. \- 19:00\-19:30 \- Meet & greet \- 19:30\-20:30 \- Silent focus time \- 20:30 \- Discussion of books/ projects over coffee **Drinks & snacks are included** ☕️ * **To reserve your place, a ticket (€9,90/event) or a community pass (only €14,90/MONTH) [from the website ](www.pausify.org)*www.pausify.org* is required** * **Attendance here doesn’t show all sign-ups from other platforms.** ***FAQ: Why does it cost money if I bring my own project?*** Because we rent a beautiful, central space for every event. Ever thought your monthly apartment rent was too high? Well, multiply that – that’s what commercial spaces in big cities like Berlin cost *per hour*. Of course, if all you want is just some quiet time, your home or a library is perfect. But if you’d like to focus & connect with others in an inspiring space – with drinks, snacks included – that’s what your ticket helps to cover. See pics from our events below - and on our Instagram: **[@Pausify (Co-Reading Space)](https://www.instagram.com/pausify_org/) ☕️** **[Pausify Co-Reading Space Website ](www.pausify.org/)*www.pausify.org*** For questions, please contact us over [Website](www.pausify.org/) ***www.pausify.org*** as this platform can have issues. Thank you! *Please note that photos and videos may be taken during the event and used for promotional purposes to highlight and share the experiences at our events. If you have concerns, don't hesitate to approach the event organizers before the event.*

Columbus libraries: [https://cml.bibliocommons.com/v2/record/S105C3262835](https://cml.bibliocommons.com/v2/record/S105C3262835) Location: [Knotty Pine Brewing](https://www.knottypinebrewing.net/) [Menu, scroll to the bottom](https://www.knottypinebrewing.net/menus-1) Book summary: Adunni is a fourteen-year-old Nigerian girl who knows what she wants: an education. This, her mother has told her, is the only way to get a "louding voice" -- the ability to speak for herself and decide her own future. But instead, Adunni's father sells her to be the third wife of a local man who is eager for her to bear him a son and heir. When Adunni runs away to the city, hoping to make a better life, she finds that the only other option before her is servitude to a wealthy family. As a yielding daughter, a subservient wife, and a powerless slave, Adunni is told, by words and deeds, that she is nothing. But while misfortunes might muffle her voice for a time, they cannot mute it. And when she realizes that she must stand up not only for herself, but for other girls, for the ones who came before her and were lost, and for the next girls, who will inevitably follow, she finds the resolve to speak, however she can--in a whisper, in song, in broken English--until she is heard

Ciao a tutt\*! Let's meet Monday at 6.30pm at the Upper Arlington Library (**Tremont** Branch) in **Meeting Room A** to speak in Italian for 1 hour. Keeping Monday for consistency but we can discuss if there are better days/times/locations!

Join us for our March Book Club gathering where we will come together to discuss *The Manor of Dreams* by Christina Li in a safe and welcoming environment. Make new friends who share your passion for books and connect with fellow LGBTQ book enthusiasts.

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

**We are expanding our creative programming opportunities with Queer Quills, a quiet writing and sharing space. Queer Quills features some prompts, supplies and friendly faces to help get some inspiration or feedback for your writing. Hope to see you there!**