nodeJS

📅 **Week 4 Focus: Calling LLM via API** 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 3, we trained a deep learning object detection model (YOLO) and learned how modern computer vision models are built. **In Week 4** we will try **LLM-based image understanding via APIs** to extract structured information from images and comparing this approach with traditional computer vision and building your own deep learning methods. * \*\*\* **👋 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.

This is a life drawing session that will last almost **2 hours**. We will draw a nude model in various short and long poses, [2 - 16 mins]. Each pose is carefully curated to offer the best possible view. Light is adjusted per pose. You will be able to draw from a very close distance the model. The aim is to offer the most useful setting for professional artists but also for beginners. At the end we will discuss over our drawings and know each other more! More info and photos here: [http://creativesessions.art/sessions/flexible-life-drawing/](http://creativesessions.art/sessions/flexible-life-drawing/) **Cost** 13 Euros. Pay with Cash or Card at the event. [ Press the "Going" button to reserve a spot ] **How Do I Join?** Please reserve a spot here, and verify 1 day before the event starts that you are coming. Those who do not reply go to the waitlist. **Session Structure** The model starts posing 15 minutes after the event starts. -Part A Poses -Break, \~5 mins -Part B Poses **Materials** Bring your own art materials. **Disclaimer!** By attending this event you agree that photos & videos are allowed to be taken. These media might be used in social media posts, for the future promotion of events like this!

**Agentic AI Engineering Lab (Tech Event, Sprint #1)** **\- Build a Production\-Ready MCP Server** **Move from prompting to architecting** The Model Context Protocol (MCP) is an emerging open standard for connecting AI apps/agents to real tools and data sources. This session is not a talk — it’s a hands-on lab where we build MCP servers that can be tested immediately with an MCP-capable client (e.g., Claude Desktop / your preferred agent setup). **The Format** We are planning a series of agentic ai tech meetings for deep building. This event may be attended alone or be seen as part / sprint of the event series with upcoming events building on top of what we build here. This is a high-density micro-meetup limited to 6 seats. We prioritize builders: bring your laptop, ship code, and be ready to 'build and break' alongside other devs and engineers. **Future Sessions building on top may focus on ...** RAG systems, advanced MCP features, A2A, multi-agent workflows, production deployment Patterns or whatever we feel nice to build next. (We run our sessions like an anthology series: **Every meetup is a standalone sprint.** While we often build on previous results, each session provides a complete experience and remains fully accessible to first-time attendees.) **What you'll build** After a quick alignment on the technical scope, the floor is yours: build your solution using the stack and tools that fit your workflow. We provide the framework; you provide the execution. By the end, you’ll have a working MCP server (Python or TypeScript) with at least one real tool/resource, tested end-to-end. **Ideas: Choose one track (or bring own idea if it fits the scope)** **For Beginners (Foundational)** * Personal knowledge server (local files/notes) * Weather / external API integration * GitHub issues helper **Intermediate** * SQLite query interface * Slack/Discord notification tool * CSV/Excel analyzer **Advanced** * Multi-API aggregator (e.g., calendar + weather + tasks) * Document processor (PDF/DOCX parsing) * Lightweight system monitoring/control **Schedule (Saturaday, 10:00 - 15:00 CET)** * **10:00–10:30 — Foundations + Live Demo** Quick run through general MCP architecture (hosts/clients/servers), core primitives (tools/resources/prompts), basic patterns in order to get everybody on the same page. * **10:30–11:00 — Environment Sync** We wanna make sure everyone can run a “Hello World” MCP server (Python or TypeScript). * **11:00–12:45 — Build Sprint (Lab Time)** Implement your server + first tool/resource. Pair-debugging encouraged. * **12:45–13:00 — Break (Pizza/Snacks)** * **13:00–13:30 — Test & Iterate** Use MCP Inspector / your client to test, fix edge cases, tighten tool contracts. * **13:30–15:00 — Demos + Technical Teardown** Quick demos, what broke, what worked, and what we’ll harden in the next sprint. **Prerequisites (Please Read)** * You’re comfortable shipping small things in your preferred dev language and tools (e.g. Python, TypeScript/Node.js). * **Bring your laptop** + basic dev setup (Git, package manager). * Have access to an LLM client / API (Claude/OpenAI/etc.). * This is a lab for engineers, not a tutorial. We solve architectural problems together, but you are the master of your own dev environment. * **Mindset:** Build, Break & Iterate — broken code is welcome, passivity isn’t. **Logistics** * **Location:** Our private boardroom in the Grunewald area (near Martin-Luther Hospital). The exact address will be shared after RSVP. * **Capacity:** 6 seats (first come, first served; deposit required) **Commitment Deposit and No-Show / Late-Show** This meetup is strictly non-profit. To respect everyone’s time and ensure all 6 seats are utilized by committed builders, a €15 deposit is required. * **The Deal:** The deposit covers high-quality pizza, snacks, and drinks. Any surplus will be refunded to you via your original payment method after the event. * **Punctuality is Key:** We start at **10:00 sharp** with the technical foundations (door open from 09:45). To protect the group’s focus, late arrivals or no-shows will not be eligible for a refund. Their deposit will be fully contributed to the community's pizza & snack fund. * **Cancellations:** No refunds for cancellations within 24 hours of the start time.

**🧡 Hello Dear Chess Enthusiasts!** **☕ Participation fee** **You must buy a drink or food before sitting.** (**We were warned that** **you cannot sit without buying a drink.** This is a private café. Outside food or drinks are not allowed.) **📢 Chess Board** Please bring it if you have one. Otherwise, you may need to wait to play. **🕥 Please arrive on time** If you are more than 30 minutes late, there might be no table. The venue is reserved until 1:00 pm, so we should prepare to leave by that time. **📌 Location** The Bode Museum Café is on the first floor. Walk up the stairs. No ticket needed; just tell the staff you’re going to the café. **✨ Chess for fun** This meetup is organized by beginners for beginners and enthusiasts who are eager to practice, improve, and enjoy chess in a friendly and supportive environment. **📖 Basic knowledge is good to have.** ( [https://en.wikipedia.org/wiki/Rules_of_chess](https://en.wikipedia.org/wiki/Rules_of_chess) ) **📷 Instagram** [https://www.instagram.com/berlin_chess_club/](https://www.instagram.com/berlin_chess_club/) **💬 WhatsApp Group** This group is only for event participants. To get access, please ask the host during the event. 🚩**We have no tolerance for discriminatory(sexist, racist, and other) jokes or comments.** **🌸 Thank you & See you** *Photos and videos may be taken for social media and memories. Let an organizer know if you prefer not to be filmed.*

Looking to meet new people in a relaxed, fun, and engaging environment? Whether you're single, taken, or it’s... complicated, this event is for you! 😉 Join us for a unique **Traffic Light Speed Friending** experience where we bring together friendly faces who are open to making new friends, sharing meaningful conversations, and maybe even sparking a little romantic chemistry. Whether you're here for connection, curiosity, or just a good time, there's space for everyone. 💡 **How it Works:** Upon arrival, you’ll receive **colour-coded name tags** that reflects your intensions: 🟢 **Green** – Single & open to dating or friendships 🟠 **Orange** – It’s complicated, but you’re open to meeting people 🔴 **Red** – Taken, just here to make friends After a fun round of **Human bingo game** to get to know each other. We’ll start the Speed Friending round where you’ll rotate through rounds of fun 1:1 conversations with conversation card, no awkward small talk necessary! 😉 🌟 **Here’s What to Expect**: 🎁 **Interactive Match made in heaven Vday Special Game** – Interactive games to help you get to know each other in a playful, relaxed way 🍻 **Asian Snacks & Welcome drink** – Mingle with each other over some special asian snacks & house beer 👕 **Optional Spark Tote bag** with fun questions printed on the merch where you can choose from the form when you sign up. 👫🏼 **Traffic Light Speed Friending Rounds** – We’ll group people by wristband color for a smooth flow of connections using fun conversation cards 🎤 **Community Spotlight** – Want a chance to grab the mic? Sign up for a 1-minute spotlight where you can share a fun fact about yourself or promote something exciting you’re working on — a project, event, or anything fun! 🎶 💃🏻 **Live Music with Original songs from me & Dance Performance with my dance crew:** [Sneak peak on Insta](https://www.instagram.com/tifflu510_tunesntwirls/) 🥳 We will have a private \***Karaoke Party at my place**\* after the event for those who would like to sing their hearts out. Don’t miss out on an afternoon of **joy, laughter, and meaningful new connections** in a fun, vibrant atmosphere! Can’t wait to see you all soon! 💖🤗 🎟️ **Ticket Price: €35** Includes all activities, special asian snacks & a welcome drink 🥳 Great news! Student discount or unemployment discount also available, just let us know in the form what’s within your budget\* 😉 👇🏼 **Sign up now** Please fill the [SIGN UP FORM HERE](https://forms.gle/iPiH8egpn1qsjcYM8) to join this Speed Friending event 💚 Join the Traffic Light Speed Friending WhatsApp Group: https://chat.whatsapp.com/FZJK9k42VJi2hl5PMMOvTj?mode=gi_t to get to know each other before the event 😉 💜Check our vibes on Insta: https://www.instagram.com/sparkevents_510

**SPECIAL VALENTINE'S** special offer : 1 tickets for 2 ppl come alone or with your friends , lovers, family and draw with us for our special Valentine workshop ! **Theme of the workshop:** Paris guinguette ! • 3 models • mini accordion concert • French pastries tasting 🍰 • some surprises ! We're a Life drawing workshop in berlin Prenzlauer Berg ! * It's open to everyone, * All levels : beginners to advanced artist: what a better way to learn from each others and to share tips and knowledge all together! * We're providing the basic tools! * Food | alcohol free drinks | Secure your spot now, **draw and connect** with Queers & allies of your neighborhood! **Make new friends in a safe space** while having a creative time all together! We're looking forward to seeing you! **Timeline**: **7:00 pm - 7:15pm : Greeting** no entry after 7:15. Please be on time or inform us at least one hour before the start of the workshop so we can open the doors again for you. **7:15pm - 9:15pm : Life drawing** **9:15pm : Snack n Talk** Enjoy some cookies and alcohol free drinks and share your drawings of the night with each other if you feel like to. **10pm : official closing of the workshop**

Wir zelebrieren gemeinsam einen vielfältigen Samstagsbrunch. Es gibt köstliche Waffeln und Pfannkuchen mit leckeren Toppings. Alle Zutaten sind pflanzenbasiert und Bio/nachhaltig/gerettet. Wir laden Pianisten ein unser Klavier zu bespielen. *** Kommt einfach vorbei. Ihr braucht keine Anmeldung. *** Bitte bringt warme Socken mit. Teilname und Getränke auf Spendenbasis. *** Siehe auch auf: LebensMittelPunkte-Berlin

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.

**RSVP Available on luma:** https://luma.com/9a20skdx Silent Reading Club is a group of book lovers who enjoy reading together in public. All books and all readers are welcome. 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 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 - 12:30 pm - Optional socializing, share your reading adventures, or just keep exploring the pages

Come along, grab a coffee, shut up, and write! We will do at least two sessions of each 45 minutes of writing and two breaks. We will start the first writing session at 11:15. **For space reasons, we are limited to a certain number of attendees, so please update your RSVP if you can't come**. We often have a large waiting list, and not updating your RSVP or not showing up if you do RSVP yes means that others miss out. We also ask that if you do change your RSVP, do it with reasonable notice. Thanks! We typically take over all of the cafe, but try to share tables if you can to allow space for other customers. If you are new, come and say hello, as we know that suddenly going quiet for 45 minutes and staring at that blank page can be intimidating when it's your first time. We have a lot of long-term regulars who will be happy to help you feel welcome. In between sessions, we have a Telegram chat: https://t.me/joinchat/ERW3pxD5kfELGeWs9SUhjw For more information, visit [https://shutupwrite.com](https://shutupwrite.com/).

Join us for chill **indoor** 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. We play in domes that are heated up to at least 15C. 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. For everyone's safety, we do not allow kicking the ball during games with beginners. Be respectful of your fellow players. **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 if 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. In the rare cases that we cancel an event due to poor attendance, everyone gets a full refund. 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 beach 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)

\*\*\*\*\*\* ***For address and more details see the website.*** \*\*\*\*\*\* **Event Info:** Bring along your **current book to read** (or something **creative** to work on 📚🎨🧵) and join us for this mix of a shared focus time + discussion. \- 11:00\-11:30 \- Meet & greet \- 11:30\-12:30 \- Silent focus time \- 12:30 \- Discussion of books/ projects over coffee **Drinks & snacks are included** ☕️ * **To reserve your place, a ticket (€9,90/event) or a community pass (only €14,90/MONTH) [from the website](www.pausify.org) is required** * **Attendance here doesn’t show all sign-ups from other platforms.** ***FAQ: Why does it cost money if I bring my own project?*** Because we rent a beautiful, central space for every event. Ever thought your monthly apartment rent was too high? Well, multiply that – that’s what commercial spaces in big cities like Berlin cost *per hour*. Of course, if all you want is just some quiet time, your home or a library is perfect. But if you’d like to focus & connect with others in an inspiring space – with drinks, snacks included – that’s what your ticket helps to cover. See pics from our events below - and on our Instagram: **[@Pausify (Co-Reading Space)](https://www.instagram.com/pausify_org/) ☕️**📚 **[Pausify Co-Reading Space Website](www.pausify.org/)** For questions, please contact us over [Website](www.pausify.org/) as this platform can have issues. Thank you! *Please note that photos and videos may be taken during the event and used for promotional purposes to highlight and share the experiences at our events. If you have concerns, don't hesitate to approach the event organizers before the event.*

Liebe Bitcoinerinnen, Es geht in die nächste Runde und wir laden euch herzlich zu unserem nächsten Les Femmes Orange Meetup ein — ein Raum von Frauen, für Frauen, die sich für Bitcoin begeistern oder einfach neugierig auf das Thema sind. Egal, ob du schon lange im Bitcoin Space bist oder gerade erst eintauchst – komm vorbei, tausche dich aus, vernetze dich mit anderen Frauen und lass dich inspirieren. Les Femmes Orange Berlin Telegram-Gruppe: Für Fragen, Feedback und Infos: https://t.me/+ccJ7AYxrz4FjOTdi Wir freuen uns auf dich!

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!

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

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.

**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 **Abstract** TBD **YouTube Link** TBA

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!

**NEW LOCATION: 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). Lonnie Morgan will be presenting information about the DLT Library. "The Python library `dlt` provides a powerful [REST API toolkit](https://dlthub.com/docs/dlt-ecosystem/verified-sources/rest_api/basic) to ingest data. Combined with our [LLM scaffolds](https://dlthub.com/workspace) and [MCP server](https://dlthub.com/docs/hub/features/mcp-server), you can build a custom connector for any of the 8k+ available sources in 10 minutes by following this guide. Building with LLMs is an iterative process. We will follow this general workflow and give practical tips for each step." See Our [Parking Map](https://docs.google.com/presentation/d/1u2A4fLNlxwLJn0KA_hKc8bnFlFHLvsHBDh-_8wzX_tk/edit?usp=sharing) 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 centralohpython@gmail.com

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/