MySQL

We are very excited to announce another Search Tech Berlin Meetup. The meetup will be hosted and sponsored by Zalando (thank you!). **Agenda** 18:15 - Doors open 18:45 - Introduction 19:00 - **Talk: Samay Kapadia: Multi-Modal Embedding Search with modern VLMs** 19:40 - Networking, food & drinks 20:00 - **Talk: David Fennesey: Automating the tedium of golden sets with agentic flows** 20:40 - Let’s socialize and grab some drinks 21:00 - Doors closing **Talks** **1) Multi-Modal Embedding Search with modern VLMs** Samay Kapadia, Principal ML Engineer, Zalando Creating a state-of-the-art search embedding model for products, that supports both text and visual inputs. Since there are no open-weight multimodal embedding models, we will convert VLMs like Qwen3 and Ministral 3 into embedding models using LoRA (Low Rank Adapters). **2) David Fennesey: Automating the tedium of golden sets with agentic flows** David Fennesey, Principal Engineer, Flink Search relevancy optimization, such as taxonomies, labeling, and query classification, is expensive to build and painful to maintain. Modern reasoning LLMs, with a small agentic framework around them are easily capable of exploring, evaluating, and iterating through your data. This talk builds that workflow from scratch: tool calls for strategic exploration and guardrails to keep it in check. See you at the event René & Roman

An inspiring, high-energy meeting of public speaking, connection, and personal growth in the heart of Berlin. **Mercury Toastmasters Berlin** invites you to our weekly meeting at our new home at **Das Center, Potsdamer Platz**, in the stunning **Historic Imperial Breakfast Hall**. *Experience the **power of prepared speeches** loaded with bold ideas, participate in our **dynamic Impromptu Session**, and **gain valuable insights** during our feedback segment.* *Leave with practical tools, fresh ideas, and renewed inspiration.* *Whether you want to speak up at work, boost your presence, or just meet inspiring people, you’ll feel at home at Mercury Toastmasters Berlin.* *** **[What to Expect:](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)** ✨ A supportive space to speak, grow, and connect 🎤 Engaging prepared speeches ⚡ Fun, fast-paced impromptu speaking challenges 💬 Feedback session you can actually use 🌍 A friendly, international crowd (around 25–30 people) **Schedule** (times may vary) ⏰ 19:15 - Doors open & networking 🎙️ 19:30 - Prepared Speeches 🏓 20:35 - Impromptu Session (Guest welcome to join) ↩️ 21:00 - Constructive feedback 💬 21:30 - Food, drinks & relaxed socializing **No experience needed.** ***Come curious. Leave energized.*** *** **🤙 [Hear it from our members:](https://maps.app.goo.gl/eRtvR9DRNqU9WZQn7)** *“You can sharpen your public speaking skills and gain tons of confidence, while having fun and making new friends. Mercury is well-structured, fun, and affordable.”* — *Therese Pitt* *“Mercury gave me a safe place to speak, create, and grow. I love the multicultural vibe and supportive community. It’s the best place to learn and have fun.”* — *Krisztina Linka* *** **[Did You Know?](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)** Toastmasters is where people go to get better at speaking—and grow into confident communicators and leaders. Today [Toastmasters ](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)has 350,000+ members across 16,000 clubs in 143 countries. And [Mercury](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/) is one of the best places to experience it. So bring your curiosity, your energy—and just be yourself. Whether you’re just starting or ready to level up, there’s a place for you here. *** **[Wondering what you get as a member?](https://mercurytoastmasters.de/membership-mercury-toastmasters-berlin/)** Think expert feedback, real-world speaking practice, and a supportive crew that’s got your back. [See you Wednesday night! 🎉](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)

**\*\*\* NEW LOCATION! \*\*\*** Join us for a relaxed, social evening exploring the basics of vibe coding. This time with a focus on automation workflows using **n8n** (n8n.io). This time at the awesome **Electric** **Social** Bar, with good vibes, good music, and great drinks. This event is for everyone. Especially beginners and anyone curious about AI and the latest tech. No prior experience needed. Just bring a laptop or tablet and an open mind. **Hosted by:** * **[Marcel Claus-Ahrens](https://www.linkedin.com/in/geckse/): n8n Ambassador and Leading Automation Expert** * **[Ridvan Sibic](https://www.linkedin.com/in/ridvan-sibic-300b5512a/): AI Engineer and Founder** **Who Is This For?** * Complete beginners and the coding-curious * Anyone wanting to learn something new in a relaxed group setting * Students, creatives, hobbyists, and professionals * Anyone with a cool app idea * If you ever wanted to know how to automate a process * People who enjoy learning with others **What to Bring:** * A laptop or tablet (as this is a hands-on event) * A curious mind * Good vibes **Schedule (19:00–21:00 + Open Session)** * **19:00 – Arrival & Drinks** * **19:15 – Vibe Coding Introduction by** **[Ridvan Sibic](https://www.linkedin.com/in/ridvan-sibic-300b5512a/)** * **19:20 – n8n Introduction by** **[Marcel Claus-Ahrens](https://www.linkedin.com/in/geckse/)** * **19:30 – Hands-on Kickoff** * **20:00 – Break & Social Time** * **20:10 – Working Session** * **20:40 – Lightning Presentations** * **21:00 – Wrap-Up & Open Session** Stay for drinks, conversations, and freestyle exploration for as long as you like. **Where:** At the Electric Social - Grunerstraße 13, 10179 Berlin **Price:** It's for free.

**Hi everyone!** We’ll now be meeting twice a week at Denizen House (Köpenicker Str. 40, 10179 Berlin), on **Mondays and Wednesdays**! * **Mondays:** levels A1 to B1 * **Wednesdays:** levels B1 to C1 We work with dedicated materials tailored to each level, so everyone will have a place to practice and improve. **Event schedule** * **18:00 – 18:30** Arrival and registration * **18:30 – 19:50** Sprachcafé * **19:50 – 20:00** End and clean up Please be aware that the moderated event starts at **18:30**. Before this time, we are busy setting up the space. Registrations usually take place around **18:15 / 18:20**. Participants are kindly asked **not to arrive too far in advance** at the house. If someone arrives much earlier, Denizen may ask them to pay either for a drink (consumption) or for a **day pass**, as the space is a co-working environment during the day. **Please remember, our event is only happening from 18:00 to 20:00** **How the Sprachcafé works** We use different materials to help participants gain confidence in German. Together with whiteboards and our volunteers, the Sprachcafé is based on **interactive conversations** in small groups. **Participation fee** The Sprachcafé has a **participation fee of 5 €**, which helps cover organizational costs and **includes one soft drink for free**. Tickets can be purchased directly on the day of the event, card and cash payments are accepted. As the Sprachcafé has become very popular, we now need to **limit the number of participants**. Please understand this measure; it ensures that everyone has a comfortable space to practice. We kindly ask you to be **rücksichtsvoll** and only RSVP “Yes” if you are certain you can attend. If your plans change at the last minute, please update your RSVP so someone on the waiting list can take your spot. Getting your ticket early can help secure your place. **Please note** Our event will begin **promptly** at the scheduled start time. If you arrive late, we cannot guarantee your participation, even if you have a ticket or have RSVP’d. We encourage all guests to arrive on time to ensure a smooth and enjoyable experience for everyone. Thank you for your understanding and cooperation. **About Denizen** Denizen is a new-style co-working space focused on being an integral part of local communities. Located on the ground floor of the historic Eiswerk on Köpenicker Straße in Kreuzberg, Denizen House is a communal place providing work, refreshment, and recreational facilities throughout the day. Think of it as a living room for the neighborhood. If you have any questions, don’t hesitate to let me know. If you’d like to contribute to this night, send me a message! Ich freue mich schon! Grüße, **Nacho**

Let's talk Android! This time we have two amazing talks prepared: Shaders on Android by Nicole Terc In this talk Nicole will introduce the totally not shady world of programming Shaders on Android. What are they? What do they want? What can they do? What can you do with then? How much do they cost and do they have a dog? These are only a few questions answered by this talk. Python on Android by Mario Bodemann Snakes. Don't be afraid of snakes. Especially not the programmable ones! Mario will talk us through 3 different way to integrate the snake taming language in your Android application. Ever wanted to run snake on your phone? This talk is your chance to learn how. 🎉🎉 Happy new year everyone, we're happy to host you at c-base again this year.🎉🎉 Join for some healthy discussions about our favorite mobile operating system ("Android") and maybe learn or teach a thing or two. Agenda --- Hosted By Mario Bodemann, GDG Organizer 🧑‍💻 Louis Tsai, Android Developer Matthias Geisler, "Geißler" Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-berlin-android-presents-berlindroid-monthly-meetup-2026-01-28/.

Want to learn a famous German card came ? Come and learn! We are hosting an easy-going session for anyone who wants to pick up the game from scratch. We’ll explain the rules as we go and keep the vibe light and fun. Not for competitive players - this is supposed to be fun!

📚 Il nostro Book Club di gennaio ti aspetta! ✨ Martedì 28 gennaio alle 19:00 Questo mese ci immergiamo in "Piatti Rotti" di Esther Bondì, un libro che promette di farci riflettere, emozionare e, soprattutto, parlare per ore! Ma il nostro book club è molto più di una semplice discussione letteraria. È uno spazio dove le pagine dei libri diventano ponti tra persone, dove la solitudine si trasforma in conversazione, e dove magari trovi quella persona con cui continuerai a scambiare consigli di lettura anche dopo la serata. Perché leggere da soli è bello, ma condividere le emozioni di un libro con altri è ancora meglio! 💛 🎟️ Scegli la tua modalità di partecipazione: 📖 Solo atmosfera - 7€
Porta il tuo libro e goditi una bevanda a tua scelta mentre ci perdiamo tra le pagine di Esther Bondì. 📚 Libro + bevanda - 22,70€
Aquista il libro da Metis e una bevanda. Perfetto se non hai ancora iniziato a leggere! 🍷 Aperitivo-cena completo - 27€
Libro incluso + aperitivo-cena con bevanda. Perché letteratura e buon cibo vanno sempre d'accordo! 🥂 Solo aperitivo-cena - 12€
Aperitivo-cena con bevanda (porta il tuo libro). Non importa se sei un lettore divoratore o se hai appena riscoperto il piacere di leggere. Qui c'è spazio per tutti: per chi vuole discutere ogni dettaglio, per chi cerca semplicemente un momento piacevole, e per chi spera di trovare la sua nuova tribù di amanti dei libri. Libro disponibile nella libreria Metis. Ci vediamo il 28 gennaio alle 19:00! I posti sono limitati, quindi prenota il tuo posto e preparati a una serata di storie, risate e nuove connessioni. Perché la vita è troppo breve per leggere da soli. 📖💫 La partecipazione al book club dà diritto a uno sconto del 10% sul tuo prossimo acquisto di libri non tedeschi (escluso il libro del book club), offerta valida fino al prossimo book club.

**IMPORTANT PLEASE RSVP:** https://www.meetup.com/grafana-and-friends-berlin/events/312736114/?eventOrigin=group_upcoming_events **🕐 Agenda** * **18:00 — Welcome & Snacks** * Doors open! Grab a slice, meet fellow community members, and get settled. * **18:30 — Opening Remarks** * A warm welcome from the **Berlin community** and event partners. * **18:45 — Tech Talks Begin** **Talk 01: Keeping data private in real-time pipelines** **Abstract** We all love real-time data — clicks, payments, rides, messages — but most of it comes with a catch: it often includes personal information we’re not allowed to leak, such as names, emails, locations, or subtle clues that can identify someone. So how do we keep streaming data **useful** and **safe** at the same time? In this talk, we’ll explore practical approaches to protecting privacy in streaming systems using **Apache Kafka**, Apache Flink, and Apache Iceberg. We’ll cover: * Simple techniques like **masking and tokenizing PII** * Why “anonymous” data often **isn’t really anonymous** (the re-identification problem) * Privacy-preserving approaches such as **bucketing, k-anonymity, and adding noise** * How to **balance privacy and data utility** (because over-hiding can make data useless) ### **Talk 02: TBA** Details coming soon 👀 ### **Talk 03: TBA** Stay tuned for the announcement!

Join us for the **first Berlin meetup of the year** as we bring together **Kong × Kafka × Grafana** for an evening focused on **real-time data, streaming, and observability** 🚀 This meetup is all about learning from practitioners, sharing experiences, and kicking off 2026 with the local data & platform community. As always, expect **high-quality technical talks**, **great conversations**, and **good vibes** — plus **pizza 🍕 and cold drinks** to keep things flowing. *** **🔐 Important** For security reasons, please provide your **Full name and surname** during registration. Our volunteers will verify your registration at the entrance — this is **mandatory** to access the venue. Your information will be used **only** for this purpose. *** **🗓️ Event Details** **📅 Date:** 29.01.26 *** **🕐 Agenda** **18:00 — Welcome & Snacks** Doors open! Grab a slice, meet fellow community members, and get settled. **18:30 — Opening Remarks** A warm welcome from the **Berlin community** and event partners. **18:45 — Tech Talks Begin** 📚 **Talk Details** ### **Talk 01: Keeping data private in real-time pipelines By Olena Kutsenko** **Abstract** We all love real-time data — clicks, payments, rides, messages — but most of it comes with a catch: it often includes personal information we’re not allowed to leak, such as names, emails, locations, or subtle clues that can identify someone. So how do we keep streaming data **useful** and **safe** at the same time? In this talk, we’ll explore practical approaches to protecting privacy in streaming systems using **Apache Kafka**, Apache Flink, and Apache Iceberg. We’ll cover: * Simple techniques like **masking and tokenizing PII** * Why “anonymous” data often **isn’t really anonymous** (the re-identification problem) * Privacy-preserving approaches such as **bucketing, k-anonymity, and adding noise** * How to **balance privacy and data utility** (because over-hiding can make data useless) *** ### **Talk 02: Blackbox Monitoring is Hard! (And Why That’s the Best Part) By Goutham Veeramachaneni** I’ve been experimenting with [Beyla](https://grafana.com/oss/beyla-ebpf/) and [eBPF-based monitoring](https://github.com/open-telemetry/opentelemetry-ebpf-instrumentation) since its inception. While it’s an incredible tool for getting started with zero-code instrumentation, making it work reliably at scale presents a unique set of hurdles. In this session, we’ll introduce Beyla’s architecture and show how it can kickstart your observability journey.But the real story lies in what happens next. Navigating the scaling challenges has been an absolute blast, and we’ve tackled each bottleneck unfazed—sometimes by leaning into the tech, and other times by resorting to white box native instrumentation to gain the granular insights we need.What you’ll learn: * • **The "How":** A technical deep dive into how Beyla works under the hood. * • **The "Real-World":** The specific challenges we faced when moving beyond the initial phase. * • **The "Trade-offs":** A transparent look at the limitations of different approaches, from pure blackbox eBPF to native instrumentation. * • T**he "Product":** Insight into the intricacies of building a new product in a rapidly evolving ecosystem. Whether you are an observability veteran or just starting with eBPF, you’ll walk away with a better understanding of your monitoring stack and the confidence to handle the limitations of the tools you use. ### **Talk 03: Securing and governing both external and internal traffic By Sven Walther** Modern enterprises must secure and govern APIs, event-driven systems, and internal services—without fragmenting control across multiple platforms. This talk shows how a unified management plane brings consistency, visibility, and security across the entire application landscape using Kong Konnect. The session will cover three key areas: * **External connectivity & event exposure** Securely connect partners and customers to your event-driven systems without exposing internal infrastructure directly. * **Internal service governance with Service Mesh** Apply security, traffic control, and observability across your internal network using a service mesh. * **Fine-grained Kafka governance** Enforce policies and security down to the individual message level for internal event streams. *** ### **🤝🏻 21:00 — Networking & Q&A** Connect with fellow developers, data engineers, platform teams, and observability enthusiasts. Share ideas, experiences, and maybe even exchange a LinkedIn connection or two. **21:30 — Event Wrap-Up** *** **📷 Photo Notice** By attending this event, you consent to being photographed. These photos may be used for future community and event promotions. Don’t forget to smile 😄 *** We’re excited to kick off 2026 with the Berlin community and can’t wait to see you there! If you have any questions or are interested in **speaking at future meetups**, feel free to reach out.

I'm excited to announce another meetup! If you're interested in give a talk, feel free to reach out to me at marcel.drechsler@andsafe.de \-\-\- All talks will be **presented in English**, to ensure that as many people as possible can participate and engage at this event. **If you want to attend, please RSVP to secure your spot - this will make organizing easier. Thank you so much ♥️** **Location:** Spiced Academy, Ritterstrasse 12, 10969 Berlin, 2. Hof \-\-\-\-\-\- **🏠 18:00 - Arrival: Networking, Drinks & Snacks (30 min.)** Grab yourself snacks & drinks and say hello to everybody else! **📅 18:30 - So you want to observe an Event Driven System? (45 min.)** **🎙️**Speaker: Roman Boiko, Enterprise Sales Engineer @ [Datadog](https://www.datadoghq.com) Event-driven architectures offer powerful decoupling, but they often shatter traditional monitoring strategies. When a single business process jumps across multiple queues, buses, and microservices, tracing the line between cause and effect becomes a complex puzzle. This talk bridges that visibility gap by exploring practical observability strategies using OpenTelemetry. We will navigate the critical architectural decisions behind distributed tracing - specifically choosing between Span Linking and Parent-Child relationships - and master context propagation to ensure no transaction is lost in the noise. Join us to learn how to connect low-level technical data with high-level business metrics, turning asynchronous complexity into a clear, manageable system. Roman Boiko is a Senior Enterprise Sales Engineer at Datadog, where he helps developers and architects build reliable, observable, and scalable systems. With a strong background in serverless and cloud-native architectures, he’s passionate about bridging the gap between engineering and operations to help teams move faster with confidence. Roman frequently speaks at tech events, sharing practical insights on observability, distributed systems, and modern application design. He enjoys exploring how developers can simplify complexity and deliver better software through data-driven decisions. **📅 19:15 - Datadog at Zendesk - a solid foundation for scalable, reliable and cost efficient systems (30 min.)** **🎙️**Speaker: Anatoly Mikhaylov, Principal Software Engineer & Datadog Ambassador @ [Zendesk](https://www.zendesk.de/) Anatoly will share practical and valuable lessons what value Datadog brings and what role it plays at Zendesk. They customized and encorporated observability triad (APM, Logs and metrics) within a large volume of systems and applications. Zendesk made it work very well at scale and so that Datadog became a common language engineers and product teams can speak to one another. A single picture often helps to narrow down the issue, surface the problem, brings the solution and be confident remediation is applied successfully. Zendesk teams are fluent using complex Datadog tools and drive necessary changes. **📅 19:45 - Continuous Profiling with Datadog (30 min.)** **🎙️**Speaker: Felix Geisendörfer, Senior Staff Engineer @ [Datadog](https://www.datadoghq.com) Instrumenting systems with logs, metrics and traces is a great way to make them more observable. However, the resulting map is not the territory, and only allows indirect reasoning about the code it represents.Continuous profiling fills this gap by allowing software developers and operators to directly understand the CPU, Memory and Latency trends of their systems using stack traces that break down problems and opportunities in terms of files, functions and line numbers. This presentation will demonstrate the value of this capability by live-debugging an incident caused by an AI assisted refactoring using Datadog’s Continuous Profiler product. Additionally the presentation will give an overview of other capabilities as well as the work we’re doing upstream to add profiling as the fourth signal of OpenTelemetry. **🥗 20:15 - Drinks, Food & Networking** Enjoy refreshments while networking with community peers! **👋 21:00 - Goodbye, see you next time!**

**📅 Week 2 Focus: Image Processing Recap & Intro to Deep Learning** 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 (covering data engineering, data science, and deployment). 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! 🧠 Current Project This cycle’s shared project is an **image-based knowledge extraction system** Last week, we kicked off our shared project by getting our hands dirty with OpenCV and exploring traditional image processing techniques. In Week 2, we’ll: * **Recap what we explored last week** and share cool experiments * **Look under the hood** of the OpenCV techniques we used * **Start exploring deep learning–based approaches** for text and object detection 📌 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 📅 When: Saturday, Jan 31 · 9:30–11:30 📍 Where: Torstraße 59, Forward Earth 💻 Bring: Your laptop, an idea—or just curiosity **👋 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.

Wir proben jeden Sonntag. Falls du mitmachen möchtest, bist du herzlich zu unseren offenen Proben eingeladen, die einmal pro Monat stattfinden. **Voraussetzung für die Teilnahme: Du sprichst Deutsch und Chinesisch mindestens auf Niveau B1.** 我们周日都排练，想来试试吗？每个月有一次公开排练，欢迎参加！**要求很简单：德语和中文B1以上就行。** **Anmeldung \| 报名方式，请见：** [https://www.ticketsource.com/improtheater-deutsch-chinesisch](https://www.ticketsource.com/improtheater-deutsch-chinesisch) **Worum geht’s?** Eine Improtheater-Gruppe für Menschen, die Deutsch und Chinesisch sprechen – und Lust haben, spontan kreativ zu sein. **这是个什么活动？** 欢迎所有会说中文和德语、想要即兴发挥创意的人加入我们的即兴戏剧小组！ **Was ist Improtheater eigentlich?** Impro ist Theater ohne Drehbuch. Alles entsteht im Moment – Figuren, Geschichten und Dialoge. Szenen entstehen zum Beispiel auf Zuruf von Begriffen durch Mitspieler oder das Publikum. **即兴戏剧到底是什么？** 即兴戏剧是一种剧场表演形式，在没有剧本或预设剧情的情况下由演员即兴创作。演员在舞台上根据观众的提示、建议或现场情境，临场创作角色、对话和剧情。 **Wer kann mitmachen?** Jeder, der Spaß am Theaterspielen hat sowie beide Sprachen (Deutsch und Chinesisch) auf gutem Niveau spricht. **谁可以参加？** 只要你喜欢表演，并且能流利地使用德语和中文，就能加入我们！ **Proben \| 排练安排** **Wann?** Immer sonntags, 14–16 Uhr **时间：** 每周日下午2点到4点 **Wo?** Brunnenstraße 145, 10115 Berlin **地点：** Brunnenstraße 145, 10115 柏林 **Kosten:** 5 Euro pro Mal **费用：** 5欧元一次

Berlin is one of the most vibrant hubs for Ethereum builders, researchers, and advocates of privacy, decentralization, and open-source technology. We're excited to welcome you to the Berlin Ethereum Meetups in 2026 and create more engaging community experiences together this year. Join us as we explore new ideas, collaborate on projects, and grow our community! Our next meetup is open to all - from those new to Ethereum to long-standing community members and developers. 🗓️ **Agenda** 🕕 6:30 - 6:45 pm - Arrivals 🕡 6:45 - 7:00 pm - Community Updates & Ecosystem News by Martin & Eniko (EF) 🕡 7:00 - 7:30 pm - Ethereum Roadmap Updates by Francesco, Researcher at the Ethereum Foundation 🕡 7:30 - Quick Open Call for BREW - Privacy Program 🕖 7:30 pm - 9:00 pm - Open discussions and community networking Whether you’re here to learn, contribute, or simply connect, join us as we continue building the next chapter of Ethereum in Berlin. The talks will be recorded and uploaded to our [Youtube channel](https://www.youtube.com/@ethereumberlin). Subscribe to stay up to date. **Apply to speak at our future meetups:** [Speaker Application](https://forms.gle/5y9Y5ywZC7pSEqpV9) To learn more about Ethereum, go to [ethereum.org](http://ethereum.org/) (content available in many different languages).

**Important: In order to attend this event, please register on the [Callstack event page](https://www.callstack.com/events/react-universe-meetup-x-zalando-berlin).** React Universe Meetup is coming to Berlin. On January 29, 2026, Zalando is teaming up with Callstack to host an in-person React Universe Meetup. Expect an evening built for experienced engineers who care about how things actually work in production, with time for both focused talks and unstructured conversations. The event is aimed at software developers, senior engineers, and architects working across full-stack and cross-platform applications, with an emphasis on sharing practical lessons, architectural tradeoffs, and production-ready approaches. It’s a space for teams working with React Native and related technologies to compare notes, learn from peers, and take ideas back to their own codebases. **Important: In order to attend this event, please register on the [Callstack event page](https://www.callstack.com/events/react-universe-meetup-x-zalando-berlin).** ## Agenda * **6:00 PM** Doors open * **‍6:20 PM** Welcome * **‍6:30 PM** Building a Video Experience with React Native: Lessons from Early Adoption Speaker: Eugene Verichev, Zalando * **6:55 PM** LLM inference on-device in React Native: the practical aspects‍ Speaker: Artur Morys-Magiera, Callstack‍ * **7:20 PM** Talk 3 (details to be announced)‍ * **7:45 PM** Q&A‍ * **8:00 PM** Networking Additional talks and speakers will be announced closer to the event.

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

### Tools in your AI's Toolbox : An introduction to MCP Servers The generative AI revolution has unlocked unprecedented capabilities, but the next frontier is agency: empowering models to interact with, query, and act upon the world. The current challenge is the “N x M integration problem,” where every AI model requires a custom, brittle integration for each external tool or data source. This approach simply doesn’t scale. How can we give an AI access to our sales leads, code repositories, or IoT devices in a standardized, secure, and reusable way? This session introduces Anthropic’s Model Context Protocol (MCP), the open-source framework designed to solve this challenge and become the universal connector—the USB-C port—for AI. MCP standardizes how AI models discover and use external tools, moving beyond simple function-calling to a robust, client-server architecture. We will dive into how this open protocol is creating a new ecosystem for building powerful, context-aware AI agents. Join this session for a developer-focused introduction where you will learn how to: Understand the core concepts of the open-source Model Context Protocol and its architecture. Utilize pre-built, open-source MCP servers to instantly connect AI to tools like Git, Slack, and databases. Build a custom MCP server to securely expose your own proprietary data and APIs as tools for any compliant AI. Move beyond bespoke integrations and contribute to a standardized, collaborative, and open ecosystem. Stop building one-off connectors and start building intelligent agents. This session will give you the practical knowledge to leverage MCP and create the next generation of AI that doesn’t just talk, but does. Want to be a speaker? submit your talk to our Call for Presenters!!! [https://sessionize.com/azure-cbus-2026/](https://sessionize.com/azure-cbus-2026/)

**PLEASE READ THE FOLLOWING IMPORTANT NOTES:** 1. The dates for this series are simply placeholders at the moment. We are working on our 2026 schedule, and adjustments are forthcoming. 2. Each class in this series has an attendance fee. 3. Each class from BOTH a sign-up and fee perspective is a separate entity. **Introduction:** Our Page Building with Bricks web development class provides detailed instruction for using Bricks Builder, a visual site builder for WordPress, to create and manage websites. Widely considered by many of the world's leading web developers to be the most complete page builder on the market today, Bricks Builder offers a wide range of features and comprehensive tools. Our Bricks Builder web development class provides detailed instructions on utilizing the toolset. The series of courses covers the core features of Bricks Builder, enabling users to design and develop responsive, visually appealing websites. Moreover, the courses are oriented to reinforce a focus on professional, scalable web development. Throughout the series, we focus our page-building instruction on the semantic and structural integrity of the pages in a responsive world. By the end of the 10-class series, participants will have a fundamental understanding of proper web page and website development. **The breakdown of the 10-class series is as follows:** * Class 01 - Survey of Page Builders / What Bricksbuilder Does For You * Class 02 - Boxes, Boxes, Boxes / Sections / Containers * Class 03 - Static Units / Relative Units / Responsive Development And Math Functions * Class 04 - CSS Variables And DRY Development / Classes And Global Styling * Class 05 - CSS Grid And CSS Flexbox * Class 06 - Responsive Development / Breakpoints And Media Queries * Class 07 - Effective Use Of Color / Effective Use Of Images * Class 08 - Beginning To Think Dynamically / Using Templates And Components * Class 09 - Dynamic Styling / Data Attributes And Attribute Selectors * Class 10 - Pseudo Elements / Programmatically Styling With Pseudo Classes Throughout the class sessions listed above, we cover the following key areas of web development with Bricks Builder: * **Introduction to Bricks Builder Interface:** * Familiarization with the builder's layout, including the toolbar, panel, and canvas, and understanding how to navigate and interact with its various components. * **Visual Site Building:** * Techniques for creating layouts using Bricks' drag-and-drop interface, incorporating sections, rows, columns, and elements to build page structures. * **Styling and Design:** * Utilizing Bricks' styling options to customize elements, apply global CSS classes for consistent design, and leverage features like Flexbox and CSS Grid for responsive layouts. * **Dynamic Content and Custom Fields:** * Integrating dynamic content from custom post types and custom field plugins (like ACF, Meta Box) to build data-driven websites. * **Template Building:** * Creating and managing reusable templates for headers, footers, post type layouts, and other site-wide elements. * **Performance Optimization:** * Understanding how Bricks Builder contributes to fast-loading websites and implementing performance best practices. * **Advanced Features:** * Depending on the class level, it might delve into advanced topics such as conditional logic, interactions, and custom code integration to enable more complex functionality. The series aims to equip participants with the skills to efficiently build, customize, and maintain WordPress websites using Bricks Builder, catering to both beginners and experienced web developers.

**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)

**PLEASE READ THE FOLLOWING IMPORTANT NOTES:** 1. The dates listed for this series are about 95% reliable. We are completing our 2026 schedule as we speak, so minor adjustments are still occurring. 2. Each class in this series has an attendance fee, though this first offering is free on a first-come, first-served basis. 3. Each class, from BOTH a sign-up and fee perspective, is a separate entity. **Introduction:** HTML5 is the foundational technology for modern web development, serving as the standard markup language for structuring and presenting content on the World Wide Web. Developed through a collaboration between the World Wide Web Consortium (W3C) and the Web Hypertext Application Technology Working Group (WHATWG), HTML5 provides a robust system of elements (tags) that tell a browser how to display text, images, and multimedia in a clear and meaningful way. It works in concert with Cascading Style Sheets (CSS) for presentation and JavaScript for interactivity, forming the core technology stack for virtually all websites and many web applications today. One of the significant advancements of HTML5 is the introduction of powerful new features and elements designed to improve functionality and simplify development. Key additions include native multimedia support via the \ and \ tags, allowing developers to embed media without third-party plugins. It also offers new form controls for better user input, such as date and email types, and introduces web storage capabilities to store data offline for enhanced performance. These features streamline the process of building rich, interactive web experiences. A significant focus of HTML5 is enhanced semantics and better structural organization of content. New semantic elements like , , , , and \ provide meaningful structure to documents, which aids in search engine optimization (SEO) and improves accessibility for assistive technologies. These elements define different parts of a webpage (e.g., a header for the top, a nav for navigation links, a footer for the bottom), making the code more readable and understandable for both developers and machines. This emphasis on clear structure helps in creating more logical and maintainable websites. Developing websites in today's competitive environment requires taking advantage of every technique you can to get the maximum exposure possible. Our HTML5 class will not only show you what's new in the HTML specification, but also the best way to develop optimized web pages that get the attention your client and/or company requires. **The breakdown of the four-class series is as follows:** **Class 1: Introduction to Web Structure and Basic HTML5** This class introduces the core concepts of web development, the history of HTML, and the fundamental structure of an HTML5 document. * **Topics**: * **Web Architecture Overview**: How browsers, servers, and web pages interact. * **HTML Fundamentals**: Understanding elements, tags, and attributes. * **Basic Document Structure**: Using !DOCTYPE html, html, head, and body. * **Text Formatting**: Headings (h1 to h6), paragraphs (p), and text-level semantics (e.g., strong, em, br). * **Lists and Links**: Creating ordered (ol) and unordered (ul) lists, and linking between pages using anchor tags (a). * **Activity**: Students create a basic personal webpage containing text, a list of hobbies, and a link to an external website. **Class 2: Semantic HTML5 and Multimedia Integration** Class 2 focuses on modern HTML5 elements that provide meaning (semantics) to content, improving accessibility and search engine optimization. It also covers adding images and multimedia. * **Topics**: * **Semantic Elements**: Understanding and implementing elements like header, footer, nav, section, and article. * **Images**: Adding images using the img tag and attributes like src, alt, width, and height. * **Multimedia**: Embedding audio and video content using the audio and video tags. * **File and Folder Structure**: Best practices for organizing project files and managing file paths. * **Activity**: Students refactor their Class 1 project to use a proper semantic layout and add an image and a link to a video file. **Class 3: Forms and User Input** This session is dedicated to building interactive HTML5 forms, which are essential for capturing user data and input. * **Topics**: * **Form Basics**: Using the form element, action and method attributes. * **Input Types**: Exploring various input types (e.g., text, password, checkbox, radio, date, submit). * **Form Elements**: Utilizing label, textarea, select, option, and button. * **Client-side Validation**: Implementing HTML5 validation attributes like required, minlength, and pattern. * **Activity**: Students build a complete contact form with different input fields, radio buttons, and basic HTML5 validation. **Class 4: Introduction to CSS3 and Basic Styling** The final class introduces Cascading Style Sheets (CSS) to style the HTML content and make the web pages visually appealing and accessible. * **Topics**: * **CSS Fundamentals**: The role of CSS, selectors, properties, and values. * **Integrating CSS**: Using inline, internal, and external style sheets. * **The Box Model**: Understanding margin, padding, border, and content for basic layout. * **Basic Styling**: Changing colors, fonts, and text alignment. * **Accessibility Basics**: Identifying principles of web design usability and accessibility, including ARIA labels. * **Activity**: Students apply an external CSS file to their Class 3 form project to style the layout, colors, and fonts, culminating in a well-structured and styled webpage.

I love my job and one of the main things I do is help customers get going with any of the data technologies at Microsoft. Right now there are a lot of my customers asking about Microsoft Fabric. It's hard to weave across all the shiny new options across the Fabric landscape, let alone figure out where it fits into your organization. In this session we'll focus on answering one question - how can I get data into Fabric? We'll talk through the "it depends" options and see some of the options in live demos.

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/