Software Architecture

!!! Note the corrected meeting spot, which for some reason keeps getting changed in the event: [https://maps.app.goo.gl/L8SuKJxoLLa8hXCdA](https://maps.app.goo.gl/L8SuKJxoLLa8hXCdA) \-\-\- **Mandarin Learner Meetup in Berlin! *(Free resources below)*** **Learning Mandarin is like trying to tame a** 🐲**.** It can feel frustrating, but you’re not alone. **[WeHanzi](wehanzi.com)** is here to support! **[WeHanzi](wehanzi.com)** is an independently built iOS app created by Ben and Gina. We've turned the entire learning experience into ***Comprehensible Input* through both simplified and traditional manga** with support for **Zhuyin**, **Pinyin**, **flashcards**, **audio**, **direct translation**, an integrated dictionary. We also specifically design region-specific language to reflect real-life usage in both **mainland Chinese Mandarin** and **Taiwanese Mandarin**, allowing you to naturally compare and explore the differences between the two, so you don’t end up saying something that makes perfect sense in Beijing, but gets you funny looks in Taipei 😏. Now, together with our good friend Matthias from **[Gemeinsam Chinesisch & Deutsch lernen](https://www.meetup.com/gemeinsam-mandarin-chinesisch-und-deutsch-lernen/events/308204343/?eventOrigin=group_upcoming_events),** we’re inviting you to our very first **in-person Mandarin Learner Meetup in Berlin** together! All levels are welcome, from beginners to advanced learners. Just come hang out, share your stories, laugh at our tone mistakes! As a community, we can learn from each other and turn Mandarin into a piece of cake! 🍰 **Come and join us!** 📱 App: [Wehanzi.com](https://wehanzi.com/) 📸 Free bite-sized resources: [Instagram](https://www.instagram.com/wehanzi/) 📚 More free tools: [wehanzi.app/menu](https://wehanzi.app/menu) **📍ABOUT THE MEETING SPOT** Please note that we will meet HERE, on the 3 wooden tree benches slightly left of the main entrance gate of Tempelhofer Feld: [https://maps.app.goo.gl/L8SuKJxoLLa8hXCdA](https://maps.app.goo.gl/L8SuKJxoLLa8hXCdA) We'll meet at the meeting spot first and then - depending on the weather - decide as a group to either walk around Tempelhofer Feld or go to a closeby restaurant to warm up and chat. So please be on time. Or if you are running late or can't find us, just give Matthias a call on 0176-21984345. See you all soon, Gina & Matthias

📅 **Week 6 Focus: Publishing Your Work** 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 6**, we will finalizing and polishing your flashcard output: * Cleaning up ur pipeline and making it runnable end-to-end * Structuring your GitHub repository properly * Writing a clear README * Preparing a short project presentation/demo * Thinking about how to explain your technical decisions \*\*\* **👋 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.

**👋 Hello Strangers! —** For all players and chess-curious folks out there who want to chill, make friends, and enjoy some chess: We are hosting a daily meetup in Mitte / Prenzlauerberg for all experience levels. It doesn't matter if you just watched the Queen's Gambit or if you have been playing regularly for a while. **Join us** — Daily from 7 pm till midnight. **Expected Behavior** — [Conduct](https://strangerchess.com/conduct/) **Pics** · [Instagram](https://www.instagram.com/strangerchess/) / **Chat** · [Telegram](https://t.me/strangerchess) / **Web** · [Strangerchess.com](https://strangerchess.com/) (No need to bring anything, boards, clocks, etc. are provided)

RSVP on Luma: https://luma.com/zx2l0ais?utm_source=meetup Silent Reading / Creating Club is a gathering for people who enjoy focusing together in public. Bring a book, a notebook, a sketchpad, knitting needles — whatever you’d like to spend a quiet hour with. All projects and all participants are welcome. ​This year is about creating more — quietly, consistently, imperfectly — and shaping environments that support that. If you’re building something of your own, you’re especially welcome here. ​We’re building a community of readers and creators who value depth, presence, and shared silence. The magic isn’t just in the quiet hour — it’s in the people who return and make it feel like a familiar room. ​(Please RSVP “yes” only if you can make it, so we can save a seat for you and others on the waitlist.) ​This quiet ritual unfolds at **W66 Café**. ​There’s no entrance fee, but please order at least one item from the café and don’t bring outside drinks 🙂 ​No assignments. No pressure. No productivity race. Just a shared hour of intentional silence, followed by relaxed conversation. 🕰 Our Agenda ​**10:30 – 11:00** Arrivals, ordering drinks/food, light social time ​**11:00 – 12:00** The Great Quiet Hour (Read. Write. Sketch. Code. Think. Sit.) ​**12:00 – 12:30** Optional socializing — share what you were reading or creating, or simply continue in quiet focus. ## **​🏡 House Guidelines** ​To keep this space calm and welcoming for everyone: ​• Silence during the focus hour (no calls or conversations) • Phones on silent mode • If using a laptop, please avoid meetings or audio — headphones welcome • Arrive before 11:00 if possible to minimize disruptions

**Relax. Connect. Create. ☕** After a full week of work, meetings, study sessions and life in fast-forward, it’s time to slow down. Join us this Saturday afternoon in Berlin for a relaxed coffee hang-out where this week's agenda is good company & warm drinks. You're also invited to bring some boardgames, drawing/coloring materials (I will bring an adult coloring book) **What’s the plan?** We’ll meet in a cosy spot, draw, chat about everything and nothing, swap stories and simply enjoy the moment. No pressure. No formalities. Just a bunch of friendly people sharing a Saturday coffee. **Who’s welcome?** Everyone! Whether you’re a Berliner born and raised, newly arrived in the city, from Germany or abroad, if you like meeting open-minded folks and spending some relaxed time—come join us. **When & how?** Saturday afternoon. Detailed time and place in our Telegram group. ➡️ Join us on Telegram: [https://t.me/berlinsaturdaycoffee](https://t.me/berlinsaturdaycoffee) Hop in, say hello, and we’ll share the final details. **Why join?** * Because you deserve a break. * Because you enjoy being creative. * Because you enjoy boardgames * Because meeting new people sparks fresh energy. * Because coffee tastes even better when shared. * Because Saturday afternoons were made for this. Respect and Safety: There is always at least one organizer present at every meetup. If you ever feel unsafe or bothered by someone’s behavior, you can reach out to an organizer privately. Your identity will remain confidential, your concern will be taken seriously, and no inappropriate behavior is tolerated — anyone making others feel uncomfortable will be removed from the group immediately. We hope to see you there. Bring yourself, your smile, drawing materials, your stories—or just your comfy self. Let’s make Saturday a little more laid-back, a little more social and a lot more nice. See you soon! —Your Saturday Creative Coffee Crew ☕

A small NEXUS gathering built around movement rather than discussion alone. This is for high-bandwidth Mavericks who spend most of their time in conceptual thought and need some physical counterweight. Why bouldering? Because it’s deliberate: short problems, full focus, and immediate feedback. You’re on the wall, solving something tangible. The mental noise drops instantly! Conversations happen naturally in between climbs. No pressure, you move at your own pace. Some exchanges stay light. Others go deep. Both are fine. This is not about athletic achievement. It’s about presence, recalibration, and being around people who don’t require you to shrink or translate yourself. Come as you are. Try some bouldering problems. Rest when needed, and engage where it makes sense. **Bring comfortable clothes and climbing shoes if you have them (rentals are available at the gym).** *Registration equals commitment. If you sign up, you show up. Read the group description first and decide consciously. For context about NEXUS, visit our* ***[website](https://thenexusformula.com)*** *and* ***[newsletter](https://news.thenexusformula.com)****.*

Für Mitglieder von Text Collective Berlin ist die Teilnahme an dieser Veranstaltung kostenlos. Nicht-Mitglieder werden um einen Teilnahmebeitrag von zehn Euro gebeten. Hier buchen: [https://textcollective.de/ticket](https://textcollective.de/ticket) Es handelt sich um einen moderierten Workshop. Bei mehr als 20 Teilnehmenden teilen wir die Gruppe mit zwei Moderator\*innen auf! Kreative Schreibübung mit anschließender Diskussion zum Erfahrungsaustausch, Inspiration und Motivation zu sammeln. Ein Raum für alle, die kreativ schreiben möchten – egal ob du gerade erst anfängst oder schon länger schreibst. **Jeden vierten Samstag des Monats von 14:30 Uhr bis 16:30 Uhr in Kreuzberg, Oranienstr. 72, nahe U-Bhf Moritzplatz.** **Was dich erwartet:** In unseren Treffen arbeiten wir mit abwechslungsreichen Schreibimpulsen, die neue Perspektiven eröffnen und spielerisches Experimentieren ermöglichen. Du schreibst direkt vor Ort, teilst deine Texte mit der Gruppe (freiwillig!) und erhältst konstruktives Feedback. Die Atmosphäre ist offen und unterstützend. Hier darf ein Text noch unfertig sein, eine Idee noch roh, ein Gedanke noch unausgereift. In dieser Atmosphäre gegenseitiger Wertschätzung entsteht der Mut, sich auszuprobieren und die eigene Stimme zu entdecken. Wir lesen einander vor, geben Rückmeldung, ermutigen uns gegenseitig und praktizieren das Zuhören.

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

Bringt gute Laune, schönes Wetter und Interesse mit. Wir treffen uns je nach Tour an unterschiedlichen Orten. Am 1. April 2018 um 15 Uhr gehts los am Eingang zur Akademie der Künste am Pariser Platz neben dem Brandenburger Tor.

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.

**THEME**: INTENTIONAL ROMANTIC Skillfully entering & exiting romantic dances **WHEN**: Saturday, January 31st, 7:30 pm - MIDNIGHT Stay for tea & snacks after the dance to continue our evening of connection. **WHERE**: Studio 2 - Bethanien, Mariannenpl. 2, 10997 Berlin Enter main entrance on Mariannenplatz 2 (bldg with 2 towers)- take first staircase to the right up to the 2nd floor (2.OG). **WHAT**: **5Rhythms Dance w/ Oliver** playfully evokes high and deep physical presence through passionate dancing and powerful music. Let yourself be guided into a deepening relationship with your outer and inner body, with your self and your life, creating many moments to still the mind through movement. This event includes a somatic introduction and integration. Liberate into the here and now through the 5Rhythms Dance w/ Oliver Dance Meditation. In this class movement becomes the medicine, the meditation and the metaphor. ✨**SCHEDULE**✨ 19:00 - Arrival 19:30 - Somatic Opening 20:00 - Doors closed 20:05 - 5 Rhythms Dance 23:00 - Social Time - Tea/Snacks **WHO**: Since 2014, OLIVER has been an accredited 5Rhythms teacher, trained in New York City by 5Rhythms founder Gabrielle Roth and her son Jonathan Horan. In addition to the 5Rhythms, his work is infused with a deep, decades-long practice in Gurdjieff’s sacred movements, meditation, and yoga (certified teacher with Richard Freeman). Oliver is also a musician. In innovative ways, he integrates complementary approaches and practices to enrich his 5Rhythms offerings (Somatic Experiencing, meditation / awareness practices, live music / chanting, community building, and transformative group experiences). Oliver is based in Berlin and offers workshops and retreats across Europe and the USA. \*\*All of Oliver’s class and workshop hours count toward the prerequisites for the 5Rhythms Teacher Training.\*\* **PLEASE BRING:** \- Open mind \- Comfortable dancing clothes \- Water bottle **PRICE**: Regular: €25 — Reduced: €22 — Supporter: > €25 — Or pay according to your own means **OPTIONAL REGISTRATION / PRE-PAY** (in addition/alternative to Eventbrite) **Eventbrite**: https://www.eventbrite.com/e/1978630390762?aff=oddtdtcreator **Email**: oliver5rhythms@gmail.com Subject: REGISTRATION for -event's date- or **PayPal**: oliver5rhythms@gmail.com (Family & Friends)

An afternoon bookclub, organized by our member Patrick Rutledge. We will meet in the café of this cultural center and talk about what we are currently reading :) and, if we've time, chat in general about books. Please also feel free to read a sample from you book if you wish. Usually we read both fiction and non-fiction (history, philosophy, sociology, and other topics). Bring your Kindle, your tablet, or your paper books. The discussion will be in English, but of course feel free to bring books in any language.

💗 **Tired of Swiping? Meet Real Singles in Berlin.** **Founded by a woman** who understands the struggle, Zeya is here to bring back organic connections. **No apps, no awkward small talk, just 6 curated singles at a cozy cafe.** 🇩🇪 **Zeya bietet kuratierte Hangouts für Singles in Berlin. Sicher, persönlich und ohne Dating-Apps.** **[Join next Berlin hangout – RSVP now!](https://zeya.cc/register)** ✅ **Women-Founded & Safe:** We prioritize a safe, respectful, and high-quality environment. ✅ **Expertly Curated:** We handpick 6 people based on vibes and interests = not just a random crowd. ✅ **Proven Success:** Proud **Web Summit Alpha Startup \| 92%** 🙌 Showed\-up \| **43%** 🔥 Hangouts matched \| **60%** 💖 Joined again \| **16** 💬 Hangouts **📋 How it works:** 1. **Register (1 min):** Fill out a curation form at [https://zeya.cc/register](https://zeya.cc/register) 2. **Get Matched:** We find the best match for you among Berlin singles. 3. **Join the Hangout:** Once matched, you’ll get a WhatsApp invitation to a cozy Berlin spot. 4. **No Pressure:** Just 🤍 First time €9 \| 💖 Regular €12 to ensure a balanced mix and no\-shows\. If no hangout offer in 31 days? **100% Full Refund.** **🥰** **Why Berliners Love Zeya?** * 🔒 **Privacy First:** No public profiles. No one sees you until you meet in person. * ⏳ **Zero Effort:** Skip the endless "Hey, how's your weekend?" texts. We do the work. * ☕ **Organic Vibes:** No awkward ice-breakers or loud moderators nor busy rotating with funny bell sound 🐶. Just 6 like-minded people having a great time. * 💌 **Smooth Follow-ups:** Like someone? Let us know privately via our post-event form. We connect you if it's a match! **[Join next Berlin hangout – RSVP now!](https://zeya.cc/register)** **Ready for a Sunday afternoon that doesn't involve a screen?** #BerlinSingles #ZeyaHangouts #SocialMatchingBerlin #BerlinEvents #SafeDatingBerlin #BerlinSinglesHangouts #SinglesEventsBerlin #WomenFounded #CoffeeDate #NeuinBerlin #Leutekennenlernen #Socialize #DatingAlternative #FreundeFinden

Join us for intermediate and advanced play on **indoor** 2v2 courts. If you are not yet at the intermediate level (F1+) or want to play 3v3/4v4, sign up via [the simultaneous event](https://www.meetup.com/berlin-volley/events/) instead. We play with beach rules: do not use open hands for the first or last touches, do not touch the net, etc. We overbook slightly to ensure we have enough players and to allow individuals to take breaks. After playing, you can join us for socials with drinks and snacks at the bar area. It's recommended that you come 10 minutes early so you have time to change and find the fields. If it is your first time, 15 minutes might be even better. We play in domes that are heated up to at least 15C. You can join whatever court you like and move between courts during the event. We self-organize, so once you finish a game, you can start a rematch, mix with another court, or take a break as you see fit. Upon arrival, join the warmup happening on one of the courts. Join our WhatsApp community via [https://volley.berlin/WhatsApp](https://volley.berlin/WhatsApp) ([QR code](https://secure.meetupstatic.com/photos/event/b/f/d/5/highres_532249109.webp)) Follow us on Insta at [https://www.instagram.com/berlinvolleyball](https://www.instagram.com/berlinvolleyball) **Rules**: Do not join if you have an infectious disease. **Venue**: We play at BeachMitte. There are changing rooms, toilets, and hot water showers that cost 1 EUR. There are no lockers. There is a bar that sells drinks and snacks. **Payment**: You pay in advance via Meetup. Payment via PayPal or Urban Sports Club is not possible. **Refunds**: The venue does not provide refunds. Thus, we cannot refund you either, even in cases where the event is canceled due to bad weather. If you know you can't make it in advance, you can try selling your spot to someone else via WhatsApp or the comment section. You get a full refund if the event gets canceled due to poor attendance. Pictures might be taken and shared publicly, such as on Meetup or Instagram. You can opt out by letting the organizer know you do not wish to be photographed. By RSVP'ing to this event, you acknowledge and agree to the following: Participation in this volleyball event is at your own risk. The organizer is not responsible for any injury, loss, or damage sustained during the event, whether caused by negligence or otherwise. You are aware of the inherent risks involved in park volleyball and voluntarily assume these risks. You agree to hold the organizer harmless from any claims, liabilities, or expenses arising from your participation, including any medical costs. Share anonymous feedback with the organizer via [https://www.admonymous.co/entropy](https://www.admonymous.co/entropy)

We will show a variety of methods for building agents that run in Microsoft Foundry. This covers the different types of agents: Prompt, Multi, and Hosted, as well as the development lifecycle using evals and traces.

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)

Meeting @ Improving's office in Downtown Columbus, near Cosi. Parking is paid, food & drink are free! This time we're hanging out after the long winter break. We are going to look at a group-member's project used to help learn the fundamentals of Go, and if time allows, we can take a look at how we like to build Go projects using AI.

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/

**⚔️ Introduction to Wargaming & Painting Miniature Soldiers at The Arcane Foundry ⚔️** Join me in **The War Room at [The Arcane Foundry](https://share.google/S5i6DYJnJteHWeKtd)** for a laid-back evening of hobby talk and tabletop fun! For just **$15**, you’ll get a **3D-printed regiment of 20 high quality resin models** of your choice to paint — a **$40 value!** Bring your creativity, relax, and let’s make something awesome together. **Choose one from Below:** * 20 Orc Warriors * 20 Empire Soldiers * 20 Dwarf Warriors * 20 Elf Spearmen Step into a world where strategy meets artistry — and where every painted figure tells a story of battle, honor, and imagination. Join **Daclaud** at **The Arcane Foundry** for an evening that introduces newcomers and enthusiasts alike to the timeless craft of **tabletop wargaming** and **miniature painting**. My own journey began with a fascination for fantasy — knights in armor, grim and hardened warriors, and monstrous creatures locked in epic battle. That passion led me to **Dungeons & Dragons**, where I painted my first **Basic Heroes set** and felt the spark that comes from bringing a character to life in miniature form. Not long after, I discovered **Warhammer Fantasy** and **Warhammer 40,000**, and I was hooked. The vision of vast armies clashing across the table — each unit meticulously painted, each story unfolding through dice and imagination — became my creative obsession. During this event, we’ll explore the **origins of wargaming**, from its early military simulations to the richly detailed worlds of modern tabletop battle systems. You’ll learn how to **build and customize your own armies**, paint your first figures, and experience the joy of turning strategy and storytelling into a hands-on art form. Whether you’re drawn by the lore, the hobby, or the thrill of commanding miniature legions, this introduction will open the gates to a world that has captivated hobbyists for generations. **🎨 RSVP today and join us at The Arcane Foundry — where every brushstroke and battle tells a story.**

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!

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.