Internet of Things (IOT)

**GDG Berlin × Cloudflare** 📍 **Ojin AIxHaus — Powered by Journee** Chausseestraße 36, 10115 Berlin 🗓 **Date:** *Wednesday 18 Feb* ⏰ **Time:** 18:00 – 21:30 (GMT+1) 🚨 **Important** Registration will be handled via **Luma** 👉 **Registration link:** [https://luma.com/x0iqonf2](https://luma.com/x0iqonf2) 🌍 About this event Join us for a **Berlin AI Builders Meetup**, organized by **GDG Berlin** and **sponsored by Cloudflare**. This evening meetup brings together engineers, builders, founders, and AI practitioners for practical, real-world discussions at the intersection of **AI, infrastructure, and modern software systems**. Whether you’re building AI-powered products, scaling platforms, or exploring how AI fits into real production workflows, expect insightful talks, open conversations, and strong community energy. 📍 Venue Hosted at **Ojin AIxHaus — Powered by Journee** Berlin’s home for builders, creators, and AI practitioners. 🗓 Agenda **18:00 – Doors Open** Grab a drink, meet fellow builders, and get settled. **18:30 – Talk 1 (TBA)** *Topic to be announced* 🍕☕ **Break — 15 min** 19:10 – 19:25 **19:25 – Talk 2 (TBA)** *Topic to be announced* 🍕☕ **Break — 15 min** 20:05 – 20:20 **20:20 – Talk 3 (TBA)** *Topic to be announced* 🕺 **Networking from 21:00 until 21:30** 💃 Connect with speakers, organizers, and fellow AI & cloud enthusiasts. 🍕🍻 Food & Drinks Food and drinks will be provided thanks to **Cloudflare’s support**. 🙏 Thanks & Credits A big thank you to **Ojin AIxHaus** for hosting this event and to **Cloudflare** for sponsoring and supporting the Berlin developer community. Ojin AIxHaus is powered by **Journee — The Human AI Company**, a collaborative community space in Berlin Mitte where scientists, machine learning engineers, founders, creators, and AI enthusiasts come together to build the future of AI. Ojin AIxHaus is free to join and is currently curating its 2026 events calendar. Have an idea for a meetup, workshop, or hackathon? Bring your fire — they bring the space 🔥 👉 [https://ojin.ai/community](https://ojin.ai/community) **Google Cloud Credits** We’re planning to offer **Google Cloud credits** to attendees so you can explore and experiment on GCP after the event. Activation details and instructions will be shared on-site. And a huge thanks to everyone in the community who helps make these events possible 💙

[*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.

**Fellow Humans,** **Here's something most of us haven't stopped to think about:** **The apps you use every day aren't just showing you content. They are quietly shaping who you are becoming.** Social Media is extensively AI-powered. TikTok's algorithm figures out your "niche" within 40 minutes. After that, 80% of what you see reinforces the same version of you. Instagram's feed curates a world of social comparison that consistently lowers self-esteem and body image (results across 48 scientific studies). And the AI tools we use to write and create? They boost individual output while making everyone's work more alike. So this time, we're gathering to explore a question that touches all of us: **When algorithms co-author our feeds, our choices, and our self-expression, what happens to the person underneath?** **Format** 🏛️ Townhall-style conversation: open, participatory, no lectures. We bring research-backed provocations to spark discussion. You bring your experiences, doubts, and observations. **Agenda** ☕ Framing: What research tells us about how AI shapes identity 💬 Provocations and real stories 🔄 Open exchange: What have you noticed? What's changed for you? 🧭 Shared strategies for staying intentional **No tech background needed. Just curiosity and willingness to think out loud with fellow humans.** 👋 **Join our [LinkedIn Group](https://www.linkedin.com/groups/10088542/) and [Substack](https://humanfuturehub.substack.com/)** for articles, perspectives, and resources between events. See you there, Your HFH Team! **Humans, together. Nobody is left behind.** ❤️

Let's support each-other, upbuild faith, and find some like-minded friends in our community. (If you are a new believer, you are also welcome only if you have been practicing Christianity regularly for at least since last 3 years. )

English, see below. *** Willkommen beim Bitcoin Meet-up im Café Holzmarktperle (Holzmarktstraße 25). Die Berliner Community kann einfach nicht genug davon bekommen über Bitcoin zu reden. :) Deshalb bieten wir dieses Meet-up als weitere Option neben dem etablierten “Berliner Bitcoin-Stammtisch @ Friedel Richter” an. Jeder ist willkommen - Bitcoin-Anfänger, Enthusiasten, etc. Wir freuen uns auf den gemeinsamen Austausch mit anderen Plebs in lockerer Runde und gemütlicher Atmosphäre und beantworten auch gerne eure Fragen. Natürlich könnt ihr im Café mit Bitcoin ₿ / Lightning ⚡bezahlen. Dies ist der richtige Ort für Menschen, die glauben, dass Bitcoin die Welt verändern kann und Teil der nächsten großen Revolution in der Finanzwelt sein wird. *** Welcome to the Bitcoin meet-up at Café Holzmarktperle (Holzmarktstraße 25, Berlin). Since we can’t get enough of talking Bitcoin we are offering this meet-up as a another option in addition to the established Berliner Bitcoin-Stammtisch @ Friedel Richter. Everyone is welcome - Bitcoin beginners, enthusiasts, … you name it. We are always happy to meet with other plebs, teach, talk and help! Payment in Bitcoin ₿ / Lightning ⚡accepted! This is the place to be for people who believe that Bitcoin will rock the world and will be part of the next big revolution in the financial world.

If you’re craving more meaning, aliveness, and alignment with what truly matters to you in your work - this evening is for you. ​An intimate dinner evening for people working inside organizations, who don’t just want to function at work but care deeply about shaping things from within. ​This is not a workshop or a networking event. It’s an opportunity to pause, reflect together, and have the conversations that often get postponed in everyday work. ​It’s not about having all the answers. It’s about creating room for clarity, perspective, and one meaningful next step. ​Join us around the table. *Seats are limited to ensure meaningful conversations* 💛 *** **​​This evening is for you, if…** * ​​you desire a deeper sense of meaning and ownership in your everyday work * ​​you miss having inspiring conversations with like-minded people around work * ​​you’re curious how to navigate impact driven projects from within organizations ​We’re looking forward to welcoming you at the table, ​Marielen & Livia *** ​​📍 Berlin, Kreuzberg ​🍝 €11.50 (covers dinner & drinks) ​🦓 10-15 people ​Delicious food. Thoughtful questions. Honest exchange. No rush. *** ​**Why this evening exists** ​Over the last months, we kept meeting amazing people who work inside of organisation (often in a corporate context), who feel stretched by their work - yet still care deeply about contributing to positive change somehow. ​They bring so much care & potential and yet I’ve noticed how often meaningful initiatives never quite take shape, simply because there’s little space or energy to move them forward. ​That’s why we’re experimenting with a small, thoughtful format to create exactly that. ​For now, this takes a very simple form: we’re setting a table and bringing a small group together over dinner. It felt like the most human way to invite reflection, honest conversation, and a sense of hope and possibility. Especially at a time when change within systems can easily feel overwhelming. ​So if someone comes to mind while reading this - a friend, colleague, or collaborator who’s trying to create change from within their organization but might not quite know where to start or how to move forward - feel free to pass this on 💛

**Are you an angel investor or an institutional investor?** Join us for **Angels & Beers** — a relaxed, no-pitch evening dedicated to connecting current and future angel investors in the Berlin community. ​​ This edition is organised together with Start-Up investment Accelerator, Leapfunder, and Startups. Berlin. **RSVP on** - [https://luma.com/zk4ak81w](https://luma.com/zk4ak81w) **Startups. Berlin** is the largest startup network in Berlin. Powered by the [Flock](https://joinaflock.com/) team, it brings together founders and investors for bi-weekly networking events. ​​**Startup Investor Accelerator**, by Mossy Ventures, helps build stronger, more investable startups while growing the next generation of angel investors within local ecosystems through hands-on learning and real investment experience. Their 3-month program brings together aspiring investors to evaluate real startups, conduct due diligence, and make a group investment, all while gaining practical insights into early-stage investing. ​​**Leapfunder** is a European platform that connects startups with early-stage angel investors through a simple, standardized investment structure. It allows investors to easily diversify their portfolio, support promising startups from the ground up, and benefit from improved access, transparency, and seamless cross-border investing across Europe. ​​​ This gathering is **exclusively for individuals who are actively investing in startups**. Whether you're just getting started or already have a portfolio, it's a chance to share experiences, exchange insights, and grow your network — all in an informal setting over a drink. ​​​Not sure if you fit the profile? Reach out — or drop by and let's talk. **Please note: this is for investors only, and you must RSVP on** [https://luma.com/zk4ak81w](https://luma.com/zk4ak81w)

All thx to the sponsor! **Line-Up:** 👉 *TBD* by TBD **Speaker Bios:** 🗣 *TBD*

[*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.

Ready to stop hearing about AI and start using it? ✨ New tools like AI automation are opening doors for creative and adaptable professionals to lead the change in their industries. **Register for our Event Here:** [https://3vgdb.share.hsforms.com/2IWuk86BbTmuYAWHoCxc2xg](https://3vgdb.share.hsforms.com/2IWuk86BbTmuYAWHoCxc2xg) Join us at **WBS CODING SCHOOL** for an exclusive in-person talk and collaborative build with Lead Instructor Maria Blanco. We are moving past the buzzwords to show you how AI can become your most powerful professional tool. **What you'll learn:** * **Beyond the Buzz:** Clear distinctions between AI Assistants, Automations, and Agents. * **Collaborative Live-Build:** Participate as we set up an AI-enhanced automated workflow using [Make.com](http://Make.com). * **No-Code Empowerment:** Discover that integrating AI tools is an achievable step without any coding skills. This session is perfect for professionals in tech-adjacent roles, absolute beginners, and anyone ready to start their journey in AI. 🤝 **Event Details:** * **Date:** Thursday, February 19 * **Time:** 18:00 – 19:30 * **Location:** Cuvrystraße 1, 10997 Berlin \-\-\- **About WBS CODING SCHOOL** Empowering ambitious minds to conquer the tech world. Since 2019, we’ve been breaking barriers to make tech careers accessible to everyone. From AI, Data, UX/UI to AI Software Development, our expert-led courses teach skills that matter. But we’re more than just a school – we’re a thriving community where passion meets opportunity. Ready to launch your future? Join us and build the career you deserve.

International Meetup for those who still like to follow the Peaceful teachings of Christ. We are free and curious humans, try to practice patience, kindness, humanity, etc, and have the freedom to read any book of the world, including the Gospels. Let's support each-other, upbuild faith, and find some like-minded friends in our community. (If you are a new believer, you are also welcome only if you have been practicing Christianity regularly for at least since last 3 years. )

Save the date! The Mozilla Meetup series continues with talks focused on modern web technologies. To account for typical **no-show rates**, we’ve opened more RSVP spots than we can physically accommodate. Based on our last event, only about 36 of 100 registered participants (including Mozillians) attended in person. **We will admit attendees on a first-come, first-served basis and will need to close the doors once we reach room capacity (around 50 people).** Note that this event operates under the [Mozilla Community Participation Guidelines](https://www.mozilla.org/about/governance/policies/participation/). **18:00** \- Doors open **18:30** \- Tracking \(Protection\) Everywhere There are a variety of tracking vectors on the web. But how exactly does this tracking work and what mechanism do we have available to protect our privacy? This talk takes a closer look at the many anti-tracking mechanisms Firefox uses to protect its users, and discusses the threat models behind them and the practical protection they provide. Bio: Manuel Bucher is a software engineer on the Firefox Privacy team working on anti-tracking in Firefox **19:30:** No Servers, No APIs: AI in the Browser I’ll present how modern web technologies make it possible to run AI models directly in the browser combining WebLLM and WebAssembly to deliver powerful, privacy-preserving client-side AI experiences. For more context, here’s a related article I wrote for Mozilla AI: [https://blog.mozilla.ai/3w-for-in-browser-ai-webllm-wasm-webworkers/](https://blog.mozilla.ai/3w-for-in-browser-ai-webllm-wasm-webworkers/) **Bio:** Barış Güler is an engineering leader working on in-browser AI systems that leverage WebLLM, WASM, and web platform features to bring AI inference and tooling into client environments. He writes about web-native AI and open-source approaches to privacy-first machine intelligence (and a Rust fan, for sure).

Join us for the next Spring User Group Berlin meetup! This time, we are bridging the gap between rock-solid operations and developer joy. [Sign up now to secure your spot!](https://www.meetup.com/spring-user-group-berlin/events/313094589/?slug=spring-user-group-berlin&eventId=313094589)

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. (NOTICE - Location change!) This session will be at the Karl Road Branch of the Columbus Library in the Conference Room 2.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message **Chris (the organizer)** with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)

Come check us out! You will have a wonderful time! The music and friendships are life-changing!

Join other experienced and aspiring agile coaches and professionals to: * develop and practice your coaching skills in a peer-to-peer environment * share current successes and challenges in your work environment and get support from each other * learn from each other, build better relationships and experiment with new ideas

**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** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA