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Hello Gophers, Welcome back for another year of Go talks and networking! Would your company like to host our meetup? Let us know! If you'd like to give a talk - submit your proposals here: http://goo.gl/forms/54YvJT223F All talk formats work: short talks (5-10 min) as well as regular length (25 min). If you have more ideas - talk to us at the Gophers slack: https://invite.slack.gobridge.org/ in the #berlin channel, and follow us on twitter: https://twitter.com/gdgberlingo **Speakers**: *Simon Schulte* is a Tech Lead with nearly a decade of experience building scalable backend systems across fast-paced product companies. With a background in business informatics and a passion for Golang, cloud infrastructure, and DevOps, he has spent his career solving complex engineering challenges. He is particularly excited about leveraging AI and LLM workflows to eliminate the tedious, repetitive work that slows developers down — think tech debt, boilerplate, and documentation — so engineers can spend their energy on what actually moves the needle. For Simon, AI isn't about replacing developers; it's about giving them back their time. *Daniel Peralta Madriz* is a backend engineer from Costa Rica with around 6 years of experience working with Golang, although, sadly, he's been spending most of his time lately working with Node.js :(. He is interested in distributed systems, scalability, and developer experience, and is currently experimenting with how to leverage LLMs to safely and autonomously execute repetitive tasks. *Michael Morgen* is a Platform/infra engineer by day, runtime and network optimizations by night. Join in person at: **Talon.One** Talon.One is the incentives engine behind 300 of the world’s most-loved brands, unifying loyalty and promotions on a single flexible platform. Their customers run millions of real-time incentive decisions across markets, channels, and use [cases.As](http://cases.as/) incentives become more strategic than ever, they are continuing to raise the bar for what businesses can build and how fast they can build it Wiener Str. 10, 10999 Berlin https://maps.app.goo.gl/8eMjgWes1E4TBA3c7 or virtually at: https://www.youtube.com/live/qh__TQ1bMF0?is=hw21pk0ZE3HGyaaT *** Agenda 10:49 PM: Networking Networking over drinks and food 7:30 PM: Welcome Welcome words from the organizers 7:35 PM: Talk 1: Go-ing Against the Chaos: Deterministic LLM Workflows / Daniel Peralta Madriz (Backend developer) & Simon Schulte (Techlead of Webhooks and Notifications) @ Talon.One LLMs are powerful, but “it works most of the time” isn’t good enough for production. In this talk, we’ll walk through how to design deterministic workflows around non-deterministic models using Go. From structured iteration loops to validation steps and guardrails, you’ll learn how to move beyond prompting and start engineering reliable LLM-powered systems 8:10 PM: Announcements and break Announcements, HR lost & found, open mic 8:30 PM: Talk 2: About Go Memory Allocator / Michael Morgen, Platform/infra engineer @ Mirantis A short talk about how Go gives memory to your program. We will look at the main allocator parts, why small allocations are usually fast, when Go asks the OS for more memory, and a couple of simple examples where this knowledge helps performance. 9:05 PM: Networking Networking over drinks and food *** Hosted By Natalie Pistunovich, Organizer Ole Bulbuk, Organizer Tim Scheuermann, Organizer Anderson Queiroz, Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-berlin-golang-presents-hybrid-may-golang-meetup-1/.

## Über diese Veranstaltung ## Der Metal Business Club startet jetzt in Berlin! Bist du Unternehmer mit einer Leidenschaft für Metal, Punk oder Hardcore? Möchtest du dein Unternehmen in einem Umfeld ausbauen, in dem Musik und Unternehmertum zusammenkommen? Dann komm zur Eröffnungsveranstaltung des Metal Business Club in Berlin! Wir organisieren monatliche Networking-Events, bei denen du dich mit anderen Unternehmern austauschen kannst, die deine Leidenschaft für härtere Musik teilen. Egal, ob du deine Sichtbarkeit erhöhen oder dich persönlich weiterentwickeln möchtest – hier bist du genau richtig. Und natürlich ist unsere Lieblingsmusik immer das verbindende Element. Bei diesem ersten Treffen erklären wir dir genau, was der Metal Business Club ist und was wir zu bieten haben. Auf dem Programm stehen folgende Themen: * Warum ist strukturiertes Networking für Unternehmer sinnvoll? * Was sind 5 praktische Tipps, um dein Netzwerk deutlich zu verbessern? Einlass ist um 19:00 Uhr, das Treffen beginnt um 19:30 Uhr. Das Treffen dauert 90 Minuten, danach bleibt reichlich Zeit für freies Networking und den Austausch persönlicher Kontakte! Das Beste daran ist, dass diese Veranstaltung völlig kostenlos ist. Sie bezahlen nur die Getränke, die Sie während oder nach dem Treffen bestellen.

Welcome to **ChessBar Events! 🍻♟️** We host **weekly chess tournaments** in different bars across the city — the perfect mix of strategy, drinks, and good vibes. The tournament is organized directly through our **ChessBar app**, where you can see your next opponent, enter results, and gain ranking points throughout the season. ✨ **What to expect** \- 5 games in **rapid format** (10 minutes per player) 🕹️ **\- Free entry** 💸 **\- Open to all levels** \- Up to 32 players can participate \- No need to bring a board or pieces — we provide all the material\! **How to join** 📲 Please make sure to **register through the ChessBar app** (signing up on Meetup alone is not enough). 👉 [https://onelink.to/chessbar-s](https://onelink.to/chessbar-s) 🌐 **More info** Website: [www.chess-bar.com](https://www.chess-bar.com/) Instagram: [@chess___bar](https://www.instagram.com/chess___bar/)

Du willst cool aussehen, wie du über den Boden schwebst oder einfach die Basics für Shuffle (Cutting shapes) lernen? Dann komm vorbei! 👟💥 Keine Angst wenn hier nur wenig Anmeldungen sind, über die WhatsApp-Gruppe sind immer einige andere Leute da 😉 (du bist also nicht allein) Level: Beginner/Intermediate 🙋🏽‍♂️ Teacher: Chris (🇩🇪/🇬🇧) 💰 Price: 15,-€ 💶 Payment: PayPal (QR Code) / Cash Pay in person - payment upon arrival (PayPal QR Code)

[*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.

Practice Spanish & German, meet new people, and have a great time! 📅 Twice a month – Wednesday 19:00 📍BrewDog Mitte Practica español y alemán, conoce gente nueva y pásalo bien. 📅 Dos veces al mes – Miercoles, 19:00 📍 BrewDog Mitte Join us for another exciting Tandem event where language enthusiasts, both Spanish and German speakers, come together for a fun and interactive language exchange. Whether you are looking to practice your German, improve your Spanish, or simply meet new like-minded individuals, this event is the perfect opportunity for you. Don't miss out on this chance to broaden your language skills, make new friends, and immerse yourself in a diverse and welcoming community.

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.

**Upcycling Workshop with Palettes ♻️** **Build. Transform. Reimagine.** 📍 Berlin \| May 14\, 2026 Let’s transform waste—together. Hosted by **OK Labs (Onaranlar Kulübü)** in collaboration with Engelnest. Join us for a collaborative, hands-on upcycling workshop where discarded pallets are turned into functional furniture and ideas become real, physical designs. This is more than just a workshop. It’s a collective act of making, thinking, and creating together. *** **What to expect** * Design and build furniture from pallets * Work collaboratively in small teams * Learn by doing — hands-on, experimental process * Be part of a creative, open-minded community *** **Who can join?** Makers, designers, and curious minds. No experience needed — just bring your motivation to build and collaborate. If you enjoy working with your hands, thinking creatively, and being part of a team, you’ll fit right in. *** **Workshop Program** This one-day co-creation workshop brings together makers, designers, and curious minds to explore ideas, experiment with materials, and turn concepts into tangible outcomes through a hands-on, collaborative process. 10:00 – 10:15 Welcome & Introductions 10:15 – 10:30 Concept Framing & Workshop Brief 10:30 – 10:45 Space & Material Walkthrough, Team Formation 10:45 – 12:30 Design Sprint – Phase 1 (Ideation, concept development, and production planning) 12:30 – 13:30 Break 13:30 – 15:30 Design Sprint – Phase 2 (Concept refinement and start of prototyping) 15:30 – 17:15 Build & Production Phase (Fabrication and final iterations) 17:15 – 17:45 Showcase & Presentations (Project presentations and outcomes) 17:45 – 18:00 Reflection & Closing *** 🗣 **Language:** English 📍 **Location:** Engelnest Coworking Space, Berlin 🗓 **Date:** May 14 — Design & Production Workshop ✨ **Limited spots available** \*\*\* The workshop is free of charge and includes catering; if you have any specific dietary requirements, please kindly share them with the organizing team in advance. \*\*\* If you have any questions, feel free to drop us a line at ufuk@oklabs.co

Registration available also on Luma : https://luma.com/jjg884su (Only sign up once please) Silent Book Club is a group of book lovers who enjoy reading together in public. All books and all readers are welcome. (Kindly RSVP 'yes' only if you can make it, so we can save a seat for you and our fellow readers on the waitlist!) This page-turning party will unfold in the Café (1st floor) at the Bode Museum. There's no entrance fee, but please order at least one item from the cafe and don't bring any outside drinks :) No quizzes, no pressure, no assigned books - just a group of book-loving souls basking in the beauty of silent reading. **Our thrilling agenda:** 10:30 am - 11:00 am - Arrivals, ordering drinks/food (social time) 11:00 am - 12:00 pm - The Great Quiet Reading Hour (where silence is the star) 12:00 pm - 13:00 pm - Optional socializing, share your reading adventures or just keep exploring the pages Stay for lunch, and who knows? You might just find your next favorite book over a pizza. NB: If you plan to go for lunch, please consider bringing cash, as some restaurants only accept card payments after a certain amount.

Join this Professional Communication session — to sharpen the skills for architectural pitches, elevator pitches, interviews. This time we meet in the Monbijou park. 💡 How it works The event is split into two parts: 1. **Communication (10 minute rounds)** – One participant answers a round of design and behavioral questions. Each other participant gets to ask him one question. 2. **Feedback Round** – The group provides feedback on communication, structure, and clarity. Constructive criticism is encouraged. 💡You will be asked: * **Light design problems** (high-level reasoning, not code) * **Behavioral questions** (“Tell me about yourself”, “Describe a challenge you faced...”) No need to prepare anything in advance — just bring curiosity and an open mind. 💡Note: location is the entrance to Monbijou park

Offene Bühne ! Jeden 2. donnerstag im Monat. Alle Arten von Darbietungen sind willkommen. Es gibt 2 Mikrofone, eine Sound-Anlage, ein Klavier und verschiedene kleine Percussion-Instrumente. Der Eintritt ist frei, Spenden sind gern gesehen. Auch Getränke gibt es auf Spendenbasis! Wir freuen uns auf euch Künstler und Publikum !

踏入《广论》研讨班，对许多人来说是开启生命转变的契机。或许您也会好奇：在繁忙的工作与生活之余，投入时间研读佛典，究竟能为人生带来哪些实质的成长与收获？ 《广论》研讨班秉持着日常老和尚以心灵提升、圆满生命的目标，提供大众身、心、灵健康的学习环境与循序渐进的佛法课程。学员通过听师父的录音带和研讨交流，对佛法建立整体认识，全面的理解，同时学习如何将佛法智慧运用于生活中，打造幸福人生。 **《菩提道次第广论》简介** 佛法大全，给与您心灵滋养，人生方向 次第井然，引领您脚踏实地，步步向上 心智科学，帮助您认识自己，了解他人 幸福教育，教会您正确取舍，离苦得乐 生命教育，陪伴您创造希望，走向美好

A caravan of House Gilmann has been waylaid by dark forces. Signs point to an ancient lich's stronghold deep in the forests of the Border Kingdoms. Are you brave enough to meet the challenge? This event is hosted using the Dungeons and Dragons 5th edition Adventurers League rules. This is a Tier 2 adventure, appropriate for both experienced and relatively new players. \*\**[Join us on Discord!](https://discord.gg/mG24YCk7wj) Attending this event indicates that you agree to follow NOVA Adventurers League Code of Conduct, which can be found in the #code-of-conduct channel on our Discord. You must join and accept the Discord rules before signing up to any MeetUp events. These rules include but are not limited to:* *\- Assigning your name and pronouns as your server nickname;* *\- Confirming your age as 18 or older;* *\- Participating in a respectful environment for both our AL DMs and your fellow players\.*

If you’re trying to grow in marketing right now, guessing isn’t a great strategy. This event gives you direct access to how marketing leaders actually think. Join DC Marketing Tech Talks on May 19th in Tysons for a live **CMO Ask Me Anything** — a candid, open conversation with experienced marketing leaders who have built teams, driven revenue, and led at the highest levels. This is your chance to ask: * What skills actually matter right now? * What gets someone promoted vs. passed over? * What does it take to become a CMO today? * How are marketing teams and roles changing? * How do you connect brand to real business growth? Just real answers from people who have done the work. Whether you’re looking to move up, switch roles, or sharpen your edge, you’ll leave with a clearer sense of what to focus on next. As always, this event is free and open to the public thanks to our sponsors, SalesIntel. Food, drinks, networking, and a room full of marketers who care about getting better at what they do. Come with questions. Leave with direction.

Free Argentine Tango fundamentals classes weekly for OneLife McLean (Regency) members in McLean Virginia! Nonmembers may pay for the health club entrance at the door ($30) and use the club for the day, which includes the dance classes, use of the pool, weights, tennis, etc . . This series runs from 12 April through mid-June every Sunday 230-330. Following the tango class, there is a dance workout class from 330-430, also included. Drop-ins welcome, though we recommend coming early in the session if you are new to tango. If any questions, text Todd at 202-361-8633.

**ProductTank NoVA is back!** After a brief hiatus, we are relaunching the chapter with a format that cuts out the fluff and gets straight to the reality of building. Every product feed is flooded with AI hype right now, but what does it actually look like on the ground? Instead of a polished keynote, we are hosting **0 to 1 with AI: Real Product Talks**—a "Show & Tell" featuring 3–4 lightning talks focused on the intersection of AI and product. The framing for the talks is simple: *"Here is what I'm building, and here is what I'm stuck on."* We want to look at the messy, 0-to-1 reality of integrating AI into your workflows and products. *(Want to share what you are working on? Reach out! The bar is low-pressure, just 10–12 minutes to talk about a real AI problem you are trying to solve.)* **Agenda:** * **5:30 PM - 6:00 PM:** Doors open, networking, & name tags * **6:00 PM - 6:10 PM:** Welcome + Chapter Relaunch Intro * **6:10 PM - 7:30 PM:** Lightning Talks (Three 12-min talks + 5 mins Q&A each, with a 5-min stretch break) * **7:30 PM - 8:00 PM:** Open networking * **8:00 PM:** Soft close **Location & Logistics:** Herndon Fortnightly Library (Extended Hours Meeting Room) 768 Center St, Herndon, VA 20170 * **Parking:** We'll meet at the library, located just behind the Herndon Municipal Center. There is plenty of free public parking available around the municipal center. * **Metro & Bus:** Take the Silver Line to Herndon Metro Station, then connect via Fairfax Connector Route 921 or 950 to Historic Downtown Herndon. * **Driving (via VA-267/Dulles Toll Rd):** Take Exit 10 North (Centreville Rd, which becomes Elden St). Turn left onto Station St or Lynn St. * **Driving (via VA-286/Fairfax Co Pkwy):** Take the Elden St West exit. Turn right onto Lynn St. Looking forward to seeing everyone again and getting back to building!

Are you ready to supercharge your professional circle? Join BNI Central Maryland, the Maryland Hispanic Chamber of Commerce, and Team Network for a high-energy, multi-organizational networking event designed to spark new opportunities and lasting partnerships. Hosted at the beautiful Aladdin Carpet & Floors in the Gaithersburg Airpark, this isn't your average "business card exchange." It’s a strategic gathering of the region’s most motivated business owners and professionals. Event Details \- When: Thursday\, May 14th \- Time: 5:30 PM – 7:30 PM \- Where: Aladdin Carpet & Floors \(Gaithersburg Airpark\) \- Registration: Secure Your Spot Here What’s in it for you? \- Exponential Reach: Meet members from three premier business organizations in one room\. \- High\-Impact Connections: Forge relationships with fellow decision\-makers across the region\. \- Great Vibes: Enjoy delicious food\, refreshments\, and a vibrant atmosphere\. \- Giveaways: Enter to win door prizes and professional perks\. Sponsorship Opportunities: Want to put your brand center stage? We have room for 2 or 3 more sponsors to showcase their business to this diverse group of professionals. If you’re ready to stand out, reach out today for details before the spots are gone! Spaces are limited. Don’t miss this unique opportunity to grow your business in a relaxed, productive, and high-energy environment. [Register now to secure your spot!](https://teamnetwork.affnetz.com/event/10666/register)

## **1 Million Cups Loudoun – Resource Presentation** **What You Really Need to Know from an HR Professional** **Presented by Donna Giarratana** **Wednesday\, May 27 \| 9:00 AM – 10:00 AM** **Venture X Loudoun** Join us for a practical and insightful resource presentation designed to help small business owners navigate one of the most critical — and often overlooked — areas of growth: **Human Resources**. *** ## **About the Session** As your business grows, so do the complexities of managing people, processes, and compliance. Many entrepreneurs wait too long to think about HR — and by the time they do, they’re already reacting instead of planning. In this session, **Donna Giarratana** will break down what small business owners *really* need to know about HR — in a way that is clear, actionable, and relevant to your stage of growth. This conversation is designed to help you move from uncertainty to confidence when it comes to building and managing your team. *** ## **What You’ll Learn** * When it’s the right time to hire * How to set your business up for success before bringing on employees * Why HR matters — even for small businesses * Common pitfalls and how to avoid them * The foundational HR knowledge every business owner should have *** ## **Who Should Attend** * Entrepreneurs preparing to hire their first employee * Small business owners currently managing a team * Founders looking to strengthen operations and compliance * Anyone who wants to build a business with a strong, scalable foundation *** ## **Why Attend?** * Gain clarity on one of the most important aspects of business growth * Learn how to avoid costly mistakes before they happen * Ask questions and get real-world insight from an HR professional * Walk away with practical knowledge you can apply immediately *** ## **About 1 Million Cups** 1 Million Cups is a national program that brings entrepreneurs and communities together to learn, connect, and grow through presentations and discussion. Loudoun’s chapter meets on the 2nd and 4th Wednesdays each month. Join us on **May 27** for coffee, connection, and a conversation that will help you build your business the right way from the inside out. We look forward to seeing you there.