C#

!!! 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

**Pop-Up Tea Tasting with Judy Li 李倩** *A pre-celebration of International Tea Day (May 21st)* We are thrilled to welcome **Judy Li** — tea master and intangible cultural heritage representative of Chinese tea culture — for a special pop-up tasting at C\*SPACE Berlin. **Saturday, May 9th · 2–4pm** 🌿 Together we'll journey through **6 teas** spanning two families: the fresh, elegant world of **green tea**, and the rich, layered depths of **Oolong**. **The teas:** 🌱 瓦屋春雪 Wawu Chunxue · Sichuan Green Tea 🌱 安溪铁观音 Anxi Tieguanyin · Fujian Oolong 🍂 武夷马头岩肉桂 Wuyi Matouyan Rougui · Wuyi Rock Oolong 🍂 武夷水仙 Wuyi Shuixian · Wuyi Rock Oolong 🍂 漳平水仙 Zhangping Shuixian · Fujian Oolong 🍂 冻顶乌龙 Dongding Oolong · Taiwan Oolong From the misty mountains of Sichuan to the rock cliffs of Wuyi and the high peaks of Taiwan — each cup carries a story of land, craft, and tradition. **About Judy Li 李倩** Judy Li is a tea culture professor, PhD, and intangible cultural heritage representative specialising in tea arts and tea production. With 20 years of experience, she has served as a national tea arts master, head coach of national tea arts competition champions, and judge of China's tea arts competitions. Judy has led over 128 tea culture sessions across 20 countries and 72 regions worldwide — including presentations at UNESCO, the Milan Winter Olympics, and the Grand Palais in Paris. We are deeply honoured to welcome her to Berlin. *Sliding scale €10–20*

**IMPORTANT! Please register at** [Luma Page](https://luma.com/9svvrv99) ​Vibecoding is no longer the question. What matters is what you actually do with it. **​On May 9** at **Spiced Academy (Berlin)**, we meet to figure that out in practice — using **[Lovable](https://lovable.dev/)**. No lectures, no slides. You open the tool and start working. ​[Projector Global community](https://www.linkedin.com/company/projector-global-community/) ambassadors and mentors will guide you through the basics, help you navigate the process, and answer your specific questions. **​This event is for those who:** — already have some experience in vibecoding — want to test a tool hands-on instead of watching demos — are stuck on something specific and want a real answer ​Come with a question. Even better — submit it during registration. ​We recommend creating an account in advance so you can jump straight in. **Mentors** During the session, you’ll be supported by experienced builders and designers: * **[Vitalik Kotik](https://www.linkedin.com/in/vitali-kotick/)** — CEO & Co-Founder @Superapp, ex-Bolt Senior Product Designer * **[Yevheniia Liubchyk](https://www.linkedin.com/in/yevheniia-liubchyk/)** — Product Designer @Zoi * **[Olha Kirdiaieva](https://www.linkedin.com/in/olha-kirdiaieva/)** — UX Designer @JUPUS * **[Danilo De la Fuente](https://www.linkedin.com/in/danilo-de-la-fuente-product-manager/)** — Founder @Arma Music, Product Manager They’ll be there to help you unblock, give direction, and support your ideas in real time. **​Tool Partner — Lovable​** This event is supported by [Lovable](https://lovable.dev/) \- an AI\-powered tool for building products faster\, without getting stuck in complexity\. ​Lovable helps you turn ideas into working solutions, experiment quickly, and focus on what matters - logic, flow, and outcomes. ​Participants will receive free credits to explore the tool during the session. Learn more: [https://lovable.dev/](https://lovable.dev/?utm_source=luma) **​Venue Host​​​** Hosted by [Spiced Academy](https://www.spiced-academy.com/en) — a Berlin tech education hub focused on hands-on learning in AI, Data, UX/UI, and Product, and building a strong tech community. **Hosts**​​​ This event is organized by [Projector Global Community](https://www.linkedin.com/company/projector-global-community/) ambassadors (by [Projector Institute](https://prjctr.com/en/about)): * ​​​[Emiliia Karpiuk](https://www.linkedin.com/in/emiliiakarpiuk/?utm_source=luma) * ​​[Julia Savchuk](https://www.linkedin.com/in/yuliia-savchuk/?utm_source=luma) **​​​​Photos & Video** ​​​​Please note that we will be taking photos at this event. By attending, you agree to be photographed, and grant the organisers permission to use this footage online and for marketing purposes (e.g., on social media or our websites).

Join us for a relaxed picnique by the lake! There are ping pong tables, a supermarket and a pizza Takeaway directly next to the park as well. 📝 The Idea: Everybody brings their own goodies, food and drinks for a picnic. The rest is up to you. 📅 Date: 09.05 ⏰ Time: 15:00 💰 Contribution: Just bring whatever you feel is worth to enjoy yourself and share with others. Food and drinks — we provide some basics, a small table and two or three ping pong bats! 📍 Location: Lietzenseepark, Charlottenburg (exact spot will be marked)

Join us for chill outdoor beach volley! 🏐 ☀️ 🏖️ 🍻 This event is for everyone who enjoys chill games and is not a *complete* beginner (A1.5+). We play 3v3 (or 4v4) with beach rules. There are no trainers at this event. Register via [the simultaneous event](https://www.meetup.com/berlin-volley/events/) for higher-level 2v2 matches (F1+). After playing, you can join us for socials with drinks and snacks at the bar area. We often play a social deduction game, which you're also welcome to join. 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. 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 [Beach 61](https://beach61.de/). There are toilets and showers, but 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)

Für Mitglieder von Text Collective Berlin ist die Teilnahme an dieser Veranstaltung kostenlos. Nicht-Mitglieder werden um eine Spende von zehn Euro gebeten. [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 zweiten Samstag des Monats von 14:30 Uhr bis 16:30 Uhr in Charlottenburg (Haus am Mierendorffplatz).** **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. **Über Text Collective Berlin:** Wir sind eine kreative Schreibcommunity, die regelmäßige Workshops und Lesungen organisiert. 2025 erschien unsere erste Anthologie "Begegnung zwischen Welten" mit Texten aus der Schreibwerkstatt.

Join us for a hands-on, collaborative **4-hour workshop** where we use LLMs to code. We will be implementing the following 3 exercises: [connect four](https://www.hellointerview.com/learn/low-level-design/problem-breakdowns/connect-four) [amazon locker](https://www.hellointerview.com/learn/low-level-design/problem-breakdowns/amazon-locker) and [elevator](https://www.hellointerview.com/learn/low-level-design/problem-breakdowns/elevator) ### **What we will do** We will use the LLM (any free one, like chatGPT) to write code that solves a given problem. Our goal is to not write code by hand, and to produce an application that passes a set of specifications. ### 🛠 **Share ideas about agentic coding** We will be practicing our agentic coding skills: * bring a laptop with Java or Golang installed * know how to code in either Java or Golang * share and explore ideas about how to use LLMs to create production-ready applications ### 💬 **Atmosphere & Logistics** The workshop is **free**. There will also be a 20 min pause, if you want to order snacks.

**Join us for a swim at Stadtbad Tiergarten Pool (near Hauptbahnhof)!** Hey everyone, We are doing a casual non-professional swim. It's an indoor heated (+26°C) pool, and I'd love for you to join us! We'll be gathering for a casual chill 30-minute swim. No need to race or compete, just enjoy the water and calm after completing the swim. Afterwards we go to a nearby café for coffees and chat, but no pressure to stick around - totally optional! **Bring** * swimsuit * towel * 1 Euro coin (for a locker) * ticket (5.50€, buy online or on site) **Where** In the entrance hall inside the pool.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** TBD **YouTube Link** TBD

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/

We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

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!

FREE event [https://www.ccad.edu/chroma](https://www.ccad.edu/chroma) Friday, May 15, 3–7 p.m. CCAD campus, 60 Cleveland Ave, Columbus, OH Join Columbus College of Art & Design for *2025* *Chroma: Best of CCAD*, our annual campuswide exhibition showcasing outstanding student work from across the college’s academic programs. This faculty-juried show features select work from CCAD students of all class years, and is a can’t-miss end-of-year campus celebration recognizing their tremendous achievements. It’ll be a night of fun and entertainment, with interactive games, animation and film screenings, art symposiums, poetry and prose readings, and more (along with some of the best local food trucks). *Chroma* is free and open to all. Many exhibitions including... **Game Art & Design:** **DSB, first floor, Welcome Center lobby and Room 115**

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com