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BHNT 109: the second BHNT in 2026. Your hacks do not have to be connected to the title (bonus points if they do though) - we just give every edition a title connected to current events. But all hacks welcome. Please RSVP and bring your hacks! There are 8 dynamically allocated Slots that consist of 5min presentation + 5min conversation with the audience. Follow us on [BlueSky](https://bsky.app/profile/bhnt.c-base.org), [X (fka twitter)](https://www.twitter.com/BerlinHacknTell), [Mastodon](https://chaos.social/@BHNT) or [Matrix](https://matrix.to/#/#bhnt:c-base.org). To refresh your memories or get familiar with the concept - see some old hacks here: https://bhnt.c-base.org Hope to see you all there - looking forward - all Hacks welcome!

At MOIA, we believe that to be great, we need to be constantly learning and seeking out new perspectives. MOIA's Mobility Consulting team is happy to invite to another transport modelling meetup at our Berlin office this year. While our own focus is the realistic simulation of our on-demand service with the tool MATSim, we aim to gather insights from the broader transport modeling world and beyond. The goal is to facilitate the exchange of ideas and insights across various institutions. The following speakers will provide insights into their work and the future of mobility: \- Nadine Kostorz \(KIT University\) \- Viktoriya Kolarova \(DLR/atStake\) \- Frank Holzhauser & Mads Berg \(Ruter\) Don't miss out on this opportunity to expand your skill set, meet like-minded people and enjoy some food and drinks on us. Better register now to secure your spot! Timetable: 18:00 Doors open 18:30 Presentations à 5-10 mins 19:50 Networking, drinks and food Language will be English.

Wir bieten allen Interessierten die Möglichkeit, mit Elektronik zu basteln. Workshops und Vorträge zu verschiedenen Themen rund um Elektronik und Software sind willkommen. Von Arduino bis zu komplett selbst entwickelten High-End Schaltungen sind wir für alle kreativen Ideen offen. Wir haben auch Gruppen rund um das Nähen, Programmieren, Retro Computer. Wir treffen uns immer am Dienstag und am Freitag ab 18:00 Uhr. Egal ob Anfänger oder Profi – hier seid Ihr jederzeit Willkommen. Ihr könnt mit anderen fachsimpeln oder auch mit unserer Hilfe Eure ersten elektronischen Gehversuche starten. Wenn zeitgleich in den vorderen Räumen Workshops oder Vorträge stattfinden, kann hinten Werkstattbetrieb stattfinden.

Join us for the LFDT Berlin Monthly Meetup, a relaxed gathering for those involved in or curious about Linux Foundation Decentralized Trust (LFDT). This is a space for open discussions, knowledge sharing, and networking among professionals working on decentralized technologies. Each month, we come together to share projects, discuss challenges, and exchange ideas on navigating the LFDT ecosystem. Whether you're looking for insights, solutions, or just good company, you'll find a supportive community eager to collaborate and help. There’s no formal agenda—just organic discussions on the latest developments, real-world applications, and ways to make decentralized trust more impactful. Whether you’re an industry expert or just starting out, you’re welcome to join us, contribute, or just listen in. Come grab a drink, meet like-minded people, and let’s build the future of decentralized trust together!

It's all about getting to know new people from your favorite industry. So if you are interested in Motion Design, 2D or 3D Animation, CGI, Illustration or any related field, feel free to join us. Grab a beer in a relaxed atmosphere, have a nice chat about key frames or discuss your next project! Beginner or expert – wir freuen uns auf dich!

**OpenClaw Anonymous Berlin** Informal meetup for anyone interested in or working with OpenClaw/Clawdbot. No talks or presentations. We discuss setups, learnings, and entrepreneurship. The group is intentionally small (8-12 people) to keep things relaxed. Come as you are. Stay as long as you like.

**BABYS (0-1) um 15.30Uhr** Musikalische Früherziehung für Babys (im Alter von 0 bis 1) Musik, Melodie, Rhythmus, Klang und Geräusche spielen schon von Geburt an eine wichtige Rolle. Gemeinsames Musizieren ist für Babys "Nahrung" für Körper, Seele und Geist. Deswegen möchten wir zusammen mit Eltern (oder Bezugspersonen) und ihren Babys singen, musizieren, Klänge erleben sowie tanzen und viel Freude mit Kniereiterliedern, Wiegenliedern, aber auch Lieder für die eigene Körpererfahrung haben. Zum Tanzen singen und hören wir Bewegungssongs oder auch klassische Stücke. Die Babys probieren sich während Klanggeschichten mit den Instrumenten, die im offenen Wohnzimmer zur Verfügung stehen, aus. **KLEINKINDER (1-3) um 16.20Uhr** Kleinkinder (1-3) mit ihren Eltern sind herzlich eingeladen ins Offene Wohnzimmer zum gemeinsamen Singen und Musizieren! Musik, Melodie, Rhythmus, Klang und Geräusche spielen schon von Geburt an eine wichtige Rolle. Gemeinsames Musizieren ist für Kinder "Nahrung" für Körper, Seele und Geist. Deswegen möchten wir zusammen mit Eltern (oder Bezugspersonen) und ihren Kinder singen, musizieren, Klänge erleben sowie tanzen und viel Freude mit Kniereiterliedern, Wiegenliedern, aber auch Lieder für die eigene Körpererfahrung haben. Zum Tanzen singen und hören wir Bewegungssongs oder auch klassische Stücke. Die Kinder probieren sich während Klanggeschichten mit den Instrumenten, die im offenen Wohnzimmer zur Verfügung stehen, aus. **KINDER (3-6) um 17.10Uhr** Kinder (3-6) mit ihren Eltern sind herzlich eingeladen ins Offene Wohnzimmer zum gemeinsamen Singen und Musizieren! Das Interesse der Kinder an allem was klingt und singt wollen wir in unserem Musikkurs aufgreifen. Dabei geht es um die kreative Entdeckung der Klänge und Töne, die Förderung der eigenen Stimme und das Erleben von Rhythmus und Bewegung. Die Instrumente, die uns im offenen Wohnzimmer zur Verfügung stehen, sollen die Kinder mitunter kennen- und spielen lernen. In familiärer Atmosphäre möchten wir den Kinder in diesem Kurs ein Grundverständnis von Musik vermittelt, nicht aber das konkrete Noten lesen wie es bspw. im Klaviereinzelunterricht oder in der Schule der Fall sein kann. Im Vordergrund stehen Spiel und Spaß am Musizieren. Für alle Kurse gilt: \*\*\* Keine Anmeldung erforderlich. \*\*\* Teilnahme auf Spendenbasis Gesa ist Musikerin, Sängerin, Gesangspädagogin und zertifizierte Singleiterin für Heilsames Singen. Nach über 20 Jahren als Opern- und Konzertsängerin liegt ihr Fokus heute auf dem musikalischen Früherziehung.

Anmeldung ausschließlich über Luma: https://luma.com/i49xrgjk ​ Lerne unser Vertriebsteam in Berlin kennen und triff unsere Regionalleiterinnen Anna und Larissa persönlich – in entspannter Atmosphäre bei Snacks und Networking. Erfahre aus erster Hand, wie wir mit beratungsorientierter Sales-Arbeit und unserem innovativen Produktportfolio Gesundheitsfachkräfte spürbar entlasten und welche Entwicklungsperspektiven dich bei Doctolib erwarten. ️ Agenda: 18:00 Uhr - Open Doors 18:30 Uhr - Willkommen bei Doctolib 18:45 Uhr - Q&A mit unseren Regional Managers 19:45 Uhr - Networking & Snacks ​ Als eines der führenden Healthtech-Unternehmen Europas setzen wir uns Tag für Tag dafür ein, die Arbeitsbedingungen von Gesundheitsfachkräften zu verbessern – und so den Zugang zur Versorgung für Patient:innen in ganz Europa wie u.a. hier vor Ort in Berlin und Umgebung einfacher zu machen. ​ Derzeit haben wir mehrere offene Stellen in Berlin und Brandenburg. Wir suchen berufserfahrene Sales-Profis (ca. 2–5 Jahre Berufserfahrung) mit Lust auf Verantwortung, Territory Ownership und das gemeinsame Erreichen von Zielen! ​Klingt spannend? Sichere dir jetzt deinen Platz - wir freuen uns auf dich! ​----------------------------------------------------- Anmeldung ausschließlich über Luma: https://luma.com/i49xrgjk ​-----------------------------------------------------

This edition of **Global AI Berlin** focuses on one of the most important building blocks of modern AI systems: **AI Memory**. **AI Memory and Founders Night** brings together founders, engineers, and product leaders to explore how memory is designed, structured, and operated in real-world AI and agentic systems. The focus is on **production-ready patterns**, not theory. With insights inspired by work across the Berlin AI ecosystem and organizations such as **Neo4j**, **Google**, **Microsoft**, and **Amazon Web Services**, the talks cover practical approaches to building memory-enabled applications at scale. ### Registration (Limited Spots) Primary registration via: [https://globalai.community/chapters/berlin/events/ai-memory-and-founders-night/](https://globalai.community/chapters/berlin/events/ai-memory-and-founders-night/) *** ### Speakers & Topics * **Louis Buys, CEO, Delta Campus** *Incubating the Next Generation of Developers and Startup Founders* * **Andreas Kollegger, GenAI Lead Neo4j** *Context Graphs for Agents – What, How, and Why to Act* * **Vasilije Markovic. CEO, Cognee** *Building Memory for AI Agents* * **Elizaveta Zinovyeva, Applied Scientist, AWS** *Analyzing Codebases with Multi-Agent Systems on Amazon Bedrock* * **Christian Kniep, Agentic Thinker MemVerge** *MemMachine: Agents That Learn, Memory That Lasts* * **Abdel Sghiouar, Developer Advocate, Google** *Taming Agentic AI: Running Untrusted Code Safely on Kubernetes* * **Christian Glessner, Microsoft MVP** *Microsoft Foundry and Foundry IQ* *** ### Who Should Attend Developers, technical founders, product managers, architects, and teams interested in building **agentic, memory-driven AI systems**.

Join us for a casual Product Round in Neukölln — a relaxed evening for **product people** who enjoy meaningful conversations and a **user-first mindset**. **When?** Every last Thursday of the month (Join the group to get reminders and location updates.) **Who it’s for** • Designers (UX / UI) • PMs & POs • Developers & Engineers • Researchers • Aspiring product people **What to expect** • Casual conversations about real product work • Sharing experiences, challenges, and learnings • Getting to know other product people in Berlin • No talks, no presentations, no pressure • Just drinks, chats, and good company **Please note** This is a **no-sales, no-pitch, no-dating space**. The goal is simple: connect, exchange, and enjoy the conversation. If you care about **building products with users in mind** and want to meet like-minded people — this is for you. See you there! Phil

Get hands-on with Google Agent Development Kit (ADK), Google’s framework for building, evaluating, and deploying AI agents. You'll progressively learn to design advanced agents and train them to play the text-based adventure game “The Garden of the Forgotten Prompt”. Get ready to explore a mysterious world, solve puzzles, and uncover secrets! Agenda: ▶️ 6:00 pm: Doors open with networking and snacks ▶️ 7:00 pm: Opening Keynote ▶️ 7:15 pm: Workshop (Laptops are required. Please charge them in advance!) Abdelfettah Sghiouar (Abdel) - Cloud Developer Advocate @ Google Cloud Daniela Petruzalek - Senior Developer Relations Engineer @ Google Cloud ▶️ 9:00 pm: Network & Drinks ☕ ▶️ 9:30pm: Doors close Google Cloud Credits We’re planning to offer Google Cloud credits to attendees so you can explore and experiment on GCP during the event. Activation details and instructions will be shared on-site. Agenda --- Speakers Daniela Petruzalek - Google (Senior Developer Relations Engineer @ Google Cloud) Abdel Sghiouar Hosted By Yevgen Batovskyi, Organizer Esra Kadah, Organizer Senior App Developer | Author of "Flutter Design Patterns & Best Practices" | Co-Organizer of Flutteristas, Flutter Berlin, GDG Cloud Berlin, Flutter Community AI Circle | ‍ Antigua Mobile Hany Elfouly, Co-founder & CEO Mohamed Islem Ayari, Organizer --- Partner Google (https://blog.google/intl/de-de) --- Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-cloud-berlin-presents-hands-on-with-agent-development-kit-adk-google-office/.

**Free registration only via Eventbrite :** https://www.eventbrite.de/e/1983244726364 **\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-** Healthcare is one of the most resource- and carbon-intensive industry - and presents a great commercial opportunity for climate tech founder ### The **Green Health Ecosystem Session** brings together healthcare experts, public-sector stakeholders, and Green Health startups in an **interactive, practice-oriented format** . ### **​Expect a dynamic mix of:** * ​expert insights on real-world healthcare challenges * ​**reverse pitches** from healthcare practitioners * ​startup pitches & live feedback * open exchange, matchmaking, and collaboration across the ecosystem ​ **What’s on the agenda?** * ​Welcome & introduction to the Green Health Accelerator * ​*Green Health in Practice* — panel / interview on real-world challenges and innovation needs * ​**Soft launch of the Green Health Startup Map** * ​**Reverse Pitch:** experts present concrete challenges from their organizations * ​**Startup Pitch Session:** Cohort 1 & 2 startups + expert jury Q&A * ​Networking, demos & informal exchange **​This session is designed to:** * ​surface **concrete sustainability challenges** in healthcare, * ​showcase relevant startup solutions, * ​enable feedback, pilots, and future collaboration. ​ Working in healthcare, the public sector, or building Green Health solutions? **\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-** **Free registration only via Eventbrite :** https://www.eventbrite.de/e/1983244726364

This edition of **Global AI Berlin** focuses on one of the most important building blocks of modern AI systems: **AI Memory**. **AI Memory and Founders Night** is an in-person AI meetup in Berlin for **developers, founders, and product leaders** working on **agentic AI systems, AI agents, and production-ready AI architectures**. The event explores how **AI memory**, **knowledge graphs**, **context management**, and **multi-agent systems** are designed and operated in real-world AI applications. The focus is on **practical, production-grade patterns**, not theory. With insights inspired by the Berlin AI ecosystem and organizations such as **Neo4j**, **Google**, **Microsoft**, and **Amazon Web Services**, the talks highlight how teams build **scalable, memory-enabled AI systems** in practice. *** ### Registration (Limited Spots) Primary registration via: [https://globalai.community/chapters/berlin/events/ai-memory-and-founders-night/](https://globalai.community/chapters/berlin/events/ai-memory-and-founders-night/) *** ### Speakers & Topics **Louis Buys** – CEO, Delta Campus *Incubating the Next Generation of Developers and Startup Founders* **Andreas Kollegger** – GenAI Lead, Neo4j *Context Graphs for Agents – What, How, and Why to Act* **Vasilije Markovic** – CEO, Cognee *Building Memory for AI Agents* **Elizaveta Zinovyeva** – Applied Scientist, AWS *Analyzing Codebases with Multi-Agent Systems on Amazon Bedrock* **Christian Kniep** – Agentic Thinker, MemVerge *MemMachine: Agents That Learn, Memory That Lasts* **Abdel Sghiouar** – Developer Advocate, Google *Taming Agentic AI: Running Untrusted Code Safely on Kubernetes* **Christian Glessner** – Microsoft MVP *Microsoft Foundry and Foundry IQ* *** ### Who Should Attend * AI developers and software engineers * Technical founders and startup teams * Product managers and AI architects * Anyone building **agentic AI**, **AI agents**, **knowledge graphs**, or **memory-driven AI systems**

Registration is handled by Global AI (limited spots): https://globalai.community/chapters/berlin/events/ai-memory-and-founders-night/ GDG Cloud Berlin is supporting Global AI Berlin as a community partner to amplify this event. This edition of Global AI Berlin focuses on one of the most critical building blocks of modern AI systems: AI Memory and its role in shaping intelligent applications. You’ll hear from founders, product leaders, and engineers on how memory is designed, structured, and operationalized in real-world AI and agentic systems—covering practical approaches to building memory-enabled applications at production scale. Topics include: graph-based context, retrieval layers, user interaction history, system architecture, performance considerations, and governance—plus lessons learned and trade-offs when moving from prototypes to reliable, memory-driven products. Who should attend: developers, technical founders, product managers, architects, and teams interested in using AI memory to improve application intelligence, user experience, and product differentiation. Speakers / agenda Abdel Sghiouar (Developer Advocate, Google) — Taming Agentic AI: How to Run Rogue Code Safely on Kubernetes (Google) Louis Buys (CEO, Delta Campus) — Incubating the Next Generation of Developers and Startup Founders Andreas Kollegger (GenAI Lead, Neo4j) — Context Graphs for Agents – What, How, and Why to Act Vasilije Markovic (Founder, Cognee) — Building Memory for AI Agents Elizaveta Zinovyeva (Applied Scientist, AWS) — Analyze codebase with multi-agent systems built on Strands Agents, Amazon Bedrock AgentCore (AWS) Christian Kniep (Agentic Thinker, MemVerge) — MemMachine: Agents That Learn, Memory That Lasts Christian Glessner & Luise Freese (Microsoft MVP) — Building AI Agents with Microsoft Foundry (Microsoft) Sujay Joshy (AI Engineer and strategist, Riverty) — Graph-Native Memory for Code Understanding at Scale (Riverty) Agenda *** Speaker Abdel SGHIOUAR - Google (Senior Cloud Engineer @Google Cloud) Senior Cloud Engineer @Google. GCP Certified almost everything. I tweet about GCP, Cloud, DevOps, kubernetes, and Serverless. Abdel Linkedin Profile: https://www.linkedin.com/in/sabdelfettah/; Hosted By Yevgen Batovskyi, Organizer Esra Kadah, Organizer Senior App Developer \| Author of "Flutter Design Patterns & Best Practices" \| Co\-Organizer of Flutteristas\, Flutter Berlin\, GDG Cloud Berlin\, Flutter Community AI Circle \| ‍ Antigua Mobile Hany Elfouly, Co-founder & CEO Mohamed Islem Ayari, Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-cloud-berlin-presents-ai-memory-amp-founders-night-community-partner-global-ai-berlin/.

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/

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

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.

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

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)