Ruby On Rails

**⭐ NEW LOCATION! ⭐ PLEASE ARRIVE BEFORE 8PM! ⭐** The Creative Code Stammtisch is a casual show-and-tell for artists, makers, designers, coders, performers, learners and anyone interested in the use of computing skills for artistic expression. The event is free and open to all, regardless of age, origin, gender or experience. Beginners and first-timers should feel especially welcome! You don't have to be a coder yourself 😃 HOW TO FIND US? Find Prachtsaal Studio by crossing the courtyard next to Cafe Augusta on Jonasstr. 22, 12053 Berlin. **NOTE: NEW LOCATION!** WHAT SHOULD I EXPECT? We start with quick introductions, then open the floor to anyone who wants to present something. There are usually around six 10-minute slots available, plus time for questions from the audience. First-timers are encouraged to share their work. Topics range from net art to computational design and interactive installations all the way to wearable electronics or generative poetry. If you’re wondering whether your own project might fit, take a look at the [Stammtisch archive](https://creativecodeberlin.github.io/Stammtisch/) to see what others have shared in the past. This event is *not* just for coders! New-media artists and anyone working with technology in their art are very welcome to share. If you enjoy art and/or technology, you’ll likely have a great time, and maybe even learn something new! BEGINNERS WELCOME! If you’re new to creative coding, you can find beginner-friendly resources at [creativecode.berlin/learn](https://creativecode.berlin/learn). THIS IS YOUR SPACE We do our best to create a welcoming environment for all people regardless of race, ethnicity, color, religion, gender identity, sexual orientation, national origin, age, disability, or genetics. People from group generally underrepresented in open-source, art, and technology fields are warmly encouraged to come by. And if you know someone who might enjoy this meetup but isn’t sure it’s for them, let them know they’ll be welcome! SAFE SPACE POLICY We support the Berlin Code of Conduct: [berlincodeofconduct.org](http://berlincodeofconduct.org/) Please read and make sure you agree with its content. ACCESSIBILITY Prachtsaal Studio is located on an easy to access ground floor. We're very sorry to say that the bathrooms are not wheelchair accessible yet. DO I NEED TO SPEAK GERMAN? We speak mostly English so international guests are more than welcome! Our team also speaks French, Italian, Spanish, Dutch, Finnish and German... though language availability may vary depending on which organizers are present :) CONTACT Raphaël de Courville team@creativecode.berlin +49 (0) 176 70070572 or get in touch via [creativecode.berlin](https://creativecode.berlin/) *** The featured artwork of the month is by Fairlix (https://instagram.com/fairlix). We'd love to feature your work on the cover for the next Stammtisch! Please send an image at team@creativecode.berlin

**1 DAY WORKSHOP ON COLORED PENCILS** FRIDAY APRIL 10th 2026 **5 to 8pm** **55€ *MATERIALS INCLUDED*** CHECK HERE FOR: [Details and booking](https://berlinschoolofdrawing.weebly.com/colored-pencils.html) *One day clas on colored pencils techniques.* *We will explore the beautiful world of colored pencils!* *Topics covered:* *\- color theory and color wheel* *\- shading* *\- texture* *\- mood of the painting* *\- drawing from an image / examples* ***

Unser Verein berlinCreators e.V. trifft sich jeden Freitag ab 18 Uhr im Makerspace. Wir haben Gruppen rund um Elektronik, 3D-Druck, Nähen, Programmieren, Retro Computer. Egal ob Anfänger oder Profi – hier seid Ihr Willkommen. Ihr könnt mit anderen fachsimpeln, Euch inspirieren lassen oder auch mit unserer Hilfe Eure ersten Projekte starten. Wenn Ihr Euch bei uns wohlfühlt und Mitglieder bei den berlinCreators werden möchtest, freuen wir uns. Kommt vorbei, lernt den Space, uns und die Möglichkeiten kennen.

[*Registration form required below*] **Interested in Japanese sword fighting or Japanese culture? Come join a trial and experience the traditional Samurai art at Katori Shintō-ryū in Schöneberg.** **Trial Fee**: **25€**/ session (2hr). Classes every Monday, Wednesday and Friday from 19:00 to 21:00. **!!SIGN UP HERE**: [Katori Shinto-ryū Berlin Sign-up (google.com)](https://docs.google.com/forms/d/e/1FAIpQLSeBt4A13VgnEcgQQ2PDaruthmYMRWineG4KtUCKsuC9KBsCUQ/viewform) Registration is required before your participation so that we can prepare enough training equipment. **Address**: Belziger Str. 25, 10823 Berlin. **No previous experience required!** The classes are in English and German. **Our website**: [Kenjutsu Berlin - Official school of Katori Shinto-ryu in Berlin (katoriberlin.org)](https://katoriberlin.org/) **Katori Shintō-ryū** is one of the oldest Japanese sword fighting traditions (koryū) still practised today and is recognized by the Japanese government as a cultural intangeable asset. The school was founded in the middle of the 15th century by Iizasa Chōisai Ienao at the Katori Shrine (Katori jingū) and has become the origin of numerous other martial arts schools over the course of its almost 600-year history. The training consists of the continuous repetition of fixed sequences of movements (kata) and includes the use of classic Japanese weapons such as the sword (iai-jutsu, battō-jutsu, ken-jutsu, ryōtō-jutsu, kodachi-jutsu), the long staff (bō-jutsu), the lance (naginata-jutsu) and the spear (sō-jutsu), as well as unarmed disciplines, tactics and spiritual aspects. **The Katori Berlin dojo** is the only official shibu of Otake Nobutoshi-shihan’s dojo Shinbukan in Germany and fully dedicated to the transmission and study of one martial tradition: Tenshinshō-den Katori Shintō-ryū. Through these efforts we aim to contribute to the cultural preservation of this martial tradition. The dojo has one officially appointed shidosha. **Our sensei**: Sebastian Graetz has been active in martial arts since 1997. After almost 15 years of taekwondo in Berlin, he started with Katori Shintō-ryū in Asia in 2014. Since then, he has studied in Japan with Ōtake Risuke-shihan and Ōtake Nobutoshi-shihan, and in Vietnam with Malte Stokhof-shihandai. In 2023, he received his Menkyo license and permission to set up a training group in Berlin the following year.

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

Have you ever seen a comedian before and thought you yourself, "Boy, oh boy, I'd sure love to give that guy a piece of my mind!" or, "Gee-whizz that was not bad at all!" or "Fuck this person." well then **this is the show for you!** **Sometimes People Are Shit is a show where comedians try out seven minutes of new material that nobody has ever heard before**. Maybe. That I can't quite guarantee but once their sets are over you, the people, get to give your feedback to the comedian. It could be good, it could be bad, but it will always be constructive! **Show starts at 22.00 sharp**. Get there nice and early for some good pre-gaming booze and tell your friends to tell their friends and so on, and so on.

This group is for everyone who is interested in drawing portraits! For me, drawing has been a wonderful way to gain a new perspective on the world and the people within it. Whether you are just starting out or have been drawing for ages — all levels are welcome :) How it works: 1\. We meet at The Castle pub in Mitte and do short sittings of 15 minutes for each other\. The first sitting is divided into 3 warm\-up sketches\, 5 minutes each\. 2\. Before we start\, everybody writes their name on a blank card \(provided by the organizer\); these cards are then used to randomly pick the model every 15 minutes\. 3\. Usually we do 8 sittings\, with a 15\-minute break in the middle \(so after 4 sittings\, or 1 hour\)\. -> The participation is free, but it is expected that everybody orders something from the bar to support the lovely location. Get out your pencils and let's start! Please bring your own art supplies!

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

**Welcome to Berlin's international training community! 🎾** **We offer professional training throughout the season, whether you're new to tennis and looking for a great start or a seasoned player seeking to enhance your skills. Our training programme features flexible booking sessions that mix learning with competition.** **Our aim is to equip players for the game whether you're playing for fun or aiming for Grand Slam success 😎**

**Welcome to Berlin's international training community! 🎾** **We offer professional training throughout the season, whether you're new to tennis and looking for a great start or a seasoned player seeking to enhance your skills. Our training programme features flexible booking sessions that mix learning with competition.** **Our aim is to equip players for the game whether you're playing for fun or aiming for Grand Slam success 😎**

Nach der Winterpause ist Brompton bereit für den Sommer – und welcher Anlass wäre besser geeignet als der Internationale Frauentag, um gemeinsam wieder aufs Rad zu steigen? Lasst uns das mit einer kurzen, aber spaßigen Gemeinschaftsfahrt durch Berlin feiern! Wir starten um 15:00 Uhr am wunderschönen Rosa-Luxemburg-Denkmal in der Nähe des Tiergartens und genießen eine entspannte gemeinsame Radtour. Die Strecke ist einfach, gesellig und für alle Leistungsstufen geeignet – perfekt, um die Wintermonate hinter sich zu lassen und die ersten Anzeichen des Sommers zu genießen. Wie immer lassen wir die Tour an der Brompton Junction Berlin bei wohlverdienten Getränken, Snacks und netter Gesellschaft ausklingen. Alle sind herzlich willkommen – besonders Radfahrerinnen und ihre Unterstützerinnen. Bringt euer Brompton, eure Freunde und gute Laune mit! Lasst uns gemeinsam radeln, uns austauschen und feiern

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. 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 ersten Samstag des Monats von 15:00 Uhr bis 17:00 Uhr in der ufaFabrik in Tempelhof.** **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.

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.

**Agenda:** * 6-6:30 pm: Networking and food/drinks * 6:30-7:15 pm: Announcements and presentation * 7:15 pm-7:30 pm: Q&A and close-out **Hacking the Stack: Using OpenSearch Dashboards as an Application Framework** Most developers treat OpenSearch Dashboards (OSD) strictly as a visualization layer—a place for charts and graphs. They are missing the bigger picture. OSD is a powerful, untapped environment for full-stack application development. In this session, we peel back the architecture of **an enterprise-grade risk, compliance, and security platform built entirely *on top of* OSD**. We moved beyond simple plugins and pushed OSD to its limits to create a seamless, interactive application experience. Join us for a deep dive into the engineering reality of the OpenSearch stack, including: * **The Analysis:** Why the OpenSearch stack beat out the competition. * **The Build,** **Beyond Visualization:** How to implement custom React components to build complex workflows and interactive UIs within OSD. * **The Integrations:** Integrating Wazuh for agent management and ingesting data at scale. * **The “Gotchas”:** Honest, real-world lessons on data handling, state management, and what to look out for. **If you are ready to push your plugins from “reporting tools” to “robust software,” do not miss this session!**

Join us at Seasons 52 Restaurant in North Bethesda. Join sailors from the Singles on Sailboats club and learn about our sailing opportunities -- day sails and weekends on the Chesapeake, bareboat charter opportunities around the world. Third Thursday of each month. www.singlesonsailboats.org Explore your interest in sailing, whether you're just curious, a novice, experienced, or a skipper. SOS offers many ways to engage in the sport, educational presentations, and varied social events on a limited budget. Come to our Happy Hour, meet some members, learn about the club, and consider joining! Just ask for the SOS Group. **FYI:** Though Meet Up may show few people attending, when you arrive many of the actual Singles on Sailboats club members will be there also. So, meet and greet, learn about the club and enjoy a Happy Hour with like-minded boaters. Host: Debbie Goldberg For more information about this gathering contact Debbie Goldberg at hidebbieg@yahoo.com

DC iOS returns to the Capital One campus for another meetup! Come and meet with fellow Apple developers in the DC Area, enjoy some food, networking, and a great tech talk! PLEASE INDICATE IF YOU WILL BE ATTENDING IN PERSON OR OVER ZOOM. **Agenda:** • 5:40 PM - Doors Open (in-person attendees). **Don't forget your ID!** • 6:10 PM - Welcome (in-person and Zoom attendees) • 6:15 PM - **Talk: *Vibe Coding: A Skeptic's Guide to Finding Your Rhythm in AI-Assisted Development*** • 7:05 PM - Community Announcements & Networking • 8:00 PM - Doors close **Talk Description:** **Vibe Coding: A Skeptic's Guide to Finding Your Rhythm in AI-Assisted Development** Leo Dion I didn't trust AI hype. But building thousands lines of production Swift taught me: AI can get you 70% there but expertise is still required. From skeptic to pragmatic builder, I'll share when AI shines, where it fails, and how to thrive in the AI era. No hype, no doomerism—just reality. Zoom Link: https://us06web.zoom.us/j/83088929804?pwd=NinZzqyxxo8Cw1KSU1rMrPey8cxr2M.1 **Location:** Capital One, C2 Building 1680 Capital One Drive, Mclean VA, 22102 100A Visitor parking is either in the garage attached to 1680 Capital One Drive, or the open lot next to 1600 Capital One Drive. After that you will walk over to the main entrance of 1680 Capital One drive, and then walk around the right to the corner to room 100A For the metro, take the Silver Line to the McLean metro stop, then walk into main campus (about a 5 minute walk). From there, walk to the main entrance of 1680 and then go to room 100A **What you need to bring:** ID **When to arrive:** Doors open at 5:50pm ET Event will start at 6:10 pm ET **Will food and drinks be provided?** Yep! **Will there be rapid testing provided?** No **Will masks be required?** No

\#\# Details ## **What to Expect:** A Laid-Back Environment: Brew, Food, and Like-Minded Individuals. Grab a beer at the bar and join in! Networking: Short and Sweet Introductions to Kick Things Off. Connect with fellow tech professionals, exchange ideas, and broaden your network horizon. Our meetups are designed for meaningful interactions and creating a supportive community. (Just talk and have fun!) Agenda: 1\. Introductions 2\. Talk and Meet New People 3\. Enjoy Drafts\, Food\, and Conversation 4\. \*Drive Home Safely\* \*\*\* ATTENTION \*\*\* We are meeting at Bunnyman Chantilly. Address: 14140 Parke Long Ct A-C, Chantilly, VA 20151

This training is designed for real estate agents who want to learn how to play the Agent Investor game. The goal of this training is to help you flip your income into ownership. ━━━━━━━━━━━━━━━━━ **Traditional buyers transact once every 7–10 years. Investors transact 3–10 times a year.** If you want predictable income, consistent deal flow, and a long-term wealth ecosystem, you don’t need more leads—you need a better list: a database of committed investors who buy repeatedly. The Investor Goldmine teaches you how to build, grow, and activate an investor database that becomes your most valuable asset in real estate. Instead of competing for one-time transactions, you position yourself as the Agent Investor—someone who understands strategy, leverage, and wealth building. In this session, you’ll learn the proven systems to build your investor list from scratch, including: * Where to network to meet real investors already buying * A simple “one lunch a week” strategy to build relationships fast * How to use giving and social currency to become the trusted connector * How absentee owners and business owners can become your best investor pipeline * Why community accelerates database growth—even if you don’t run one You’ll also get a clear activation plan to start growing and converting your investor database immediately. Because the model is simple: Build the list. Call the list. Market to the list. And your income becomes repeatable. ━━━━━━━━━━━━━━━━━ **Did you miss it?** [Watch all GRID Reston event playback on YouTube](https://www.youtube.com/playlist?list=PLOTh5kxLLJI1G3VH6Pqhlhu0uTA8yrdpi) ━━━━━━━━━━━━━━━━━ **Join the GRID Facebook Community** [Join the online GRID community here](https://www.facebook.com/groups/gridinvestor) to post deals, ask questions, and connect with other investors across the globe.

Join an exclusive hands-on portrait photography workshop at **Sarosh Photography & Studios** where creativity meets professional guidance. This immersive studio session will give photographers the opportunity to learn lighting techniques, posing direction, composition, and creative storytelling while working with **International model Cordelia**. Participants will gain real-world experience capturing elegant portraits in a controlled studio environment, while also learning practical tips on working with professional models, styling, and creating portfolio-worthy images. This workshop is designed to help photographers refine their artistic vision, improve technical skills, and elevate their portrait photography through guided demonstrations and live shooting sessions.

**Agenda :** * 4.45 to 5.00 PM ET: Food and Networking * 5.00 to 5.50 PM ET: "Data Science & Machine Learning with Microsoft Fabric" Hello Everyone! Please join us for our March 12th edition of the AI-ML MeetUp. **Please note this is an in-person meeting and light refreshments/food will be provided. You will need a government-issued ID to enter the facility.** **Title:** Data Science & Machine Learning with Microsoft Fabric **Description:** Explore Microsoft Fabric’s integrated Data Science experience across ideation, preprocessing, modeling, & deployment. Learn how to ingest and prepare data via OneLake and Lakehouse, leverage Notebooks, Data Wrangler, Spark, SynapseML, MLflow for experimentation, & operationalize predictions with batch scoring and Power BI direct integration. Also, learn to build generative AI Q&A systems using Fabric Data Agents. **Location:** The meeting will be hosted in the Applied Information Sciences ( AIS ) office in Reston, at 11440 Commerce Park Dr # 600 · Reston, VA. The location is also right off the Silver Line metro's Wiehle-Reston Metro Station. **Parking:** Parking is paid and can be validated at the AIS office reception. We will meet in Room Lake Anne. We hope to see you all there!!!!