Ceroc

Come and experience the infamous DC4131 hacker meetup vibe! 👾🍻 Please find more event specific info's on our **[webpage](https://www.beerontuesday.ch/)**. If you have any location specific questions, reach out to the local BoT Master, otherwise please don't hesitate to contact the board through our **[website](https://www.defcon-switzerland.org/)**. Did someone say **SWAG?! –** That’s right baby, we are back with our refreshed swag shop, where you can now again purchase the latest and sexiest DC4131 Swag – All options and details are here: **[DC4131 Swag Shop](https://industryink.co.uk/collections/defcon)** We are also on **[Discord](https://discord.gg/Q3KXn5u)**[ ](https://discord.gg/Q3KXn5u):) Come say hi!

Let's meet at the CNC meetup on Tuesday, March 10th, 2026, at 15:00 CET. **Location:** VSHN Tower, 8th floor, Neugasse 6, 8005 Zürich **Agenda:** Would you like to speak at this event? Contact us at [https://cnc-meetup.ch](https://cnc-meetup.ch)! Guidelines: * All sessions are held in English. * No product or sales pitches are allowed. * All projects showcased should be open source. * We cannot cover travel costs, but we welcome speakers from other regions. * We're seeking more diversity among our speakers: underrepresented groups are welcome! 14:30 – Door Opening 15:00 – Welcome, Intro, & Announcements 15:05 – TLS Hot Reload, Janne Kataja (SIX) 15:30 – 5 minutes pause 15:35 – Cloud-Native Application Definition and Delivery with OAM and KubeVela, Raffael Klingler (AXA) 16:00 – 5 minutes pause 16:05 – From Problem to Production: DevOps for AI with Kubeflow, Fabrizio Lazzaretti (Wavestone) and Marco Crisafulli (enki) 16:30 – 5 minutes pause 16:35 – Bye-bye Ingress-NGINX, hello Gateway API, Urs Zurbuchen (Airlock) 17:00 – Final words, networking & apéro TLS Hot Reload, Janne Kataja (SIX) Learn how to minimize disruptions caused by TLS certificate rotations by enabling hot reloading in your application. In Kubernetes, TLS certificates are typically stored in Secrets and mounted into pods. When a Secret is updated, for example, due to certificate rotation by cert-manager, Kubernetes updates the projected secret volume. Hot reload mechanisms detect these file changes and reload TLS certificates without restarting the pod. This enables live certificate rotation, maximizes availability, and reduces operational risk associated with restarts. The approach makes shorter-lived TLS certificates operationally viable. Janne is a Cloud Platform Engineer at the SIX Group, where he builds cloud platforms and services for the financial community. Originally from Finland, he now lives in Baar, Zug. Opinions are his own. Cloud-Native Application Definition and Delivery with OAM and KubeVela, Raffael Klingler (AXA) What if developers could focus on their applications instead of the platform beneath them? The Open Application Model (OAM) makes this possible by shifting the focus from containers and orchestrators to applications themselves. Instead of wrangling low-level Kubernetes manifests, developers define applications using modular, reusable building blocks. KubeVela brings this model to life, rendering abstract definitions into deployable resources. In this session, we'll explore how OAM enables application-centric definitions and see KubeVela in action. You'll see an application evolve from a simple definition to a sophisticated setup with cloud-managed services and GitOps integration. Raffael Klingler is a Platform Engineer at AXA Switzerland, where he helps development teams ship software faster and more reliably. He recently completed his Master's thesis on Internal Developer Platforms, diving deep into OAM, KubeVela, and the challenge of making application delivery less painful. When not wrangling Kubernetes manifests, he's probably thinking about how to make developers' lives easier. From Problem to Production: DevOps for AI with Kubeflow, Fabrizio Lazzaretti (Wavestone) and Marco Crisafulli (enki) Despite massive investments in AI, most enterprise AI initiatives fail to reach production — not because of model quality, but because of fragmentation among data science, platform engineering, and business teams. MLOps addresses this challenge by applying DevOps principles to machine learning, and Kubeflow has emerged as a de facto open platform for operationalizing these practices in cloud-native environments. In this talk, we explore how Kubeflow enables collaboration, automation, and repeatability across the entire ML lifecycle, from requirements gathering and experimentation to deployment and continuous improvement. Using a real end-to-end example, we’ll demonstrate how Kubeflow Pipelines, training workflows, and integration with the CNCF ecosystem help teams move beyond ad-hoc experimentation toward production-grade AI systems. Attendees will see how a vendor-neutral Kubeflow-based MLOps architecture supports multi-cloud deployments, enforces operational best practices, and creates continuous feedback loops between stakeholders. Whether you are introducing MLOps for the first time or refining an existing platform, this session provides practical insights into using Kubeflow to turn AI from a research activity into a sustainable business capability. Fabrizio Lazzaretti is a Managing Consultant at Wavestone and CNCF Ambassador who bridges cutting-edge cloud-native technologies with enterprise architecture. As maintainer of the CloudEvents Rust SDK and co-author of "Crafting Great APIs with Domain-Driven Design," he brings deep expertise in event-driven architecture and microservices to complex challenges. With over 10 years of experience in software architecture, development, and DevOps, he currently drives architectural transformation and AI initiatives across sectors, connecting business and IT through collaborative API design. Marco Crisafulli is the co-founder of enki, a Swiss machine learning company focused on training, consulting, and implementing practical ML use cases for Swiss enterprises. With a strong background in enterprise software and cloud-native infrastructure, he specializes in MLOps, Kubernetes, and production-grade ML platforms, and has deep hands-on experience with Kubeflow. He works closely with organizations to bridge the gap between experimentation and reliable ML systems in production, helping teams operationalize ML at scale. Bye-bye Ingress-NGINX, hello Gateway API The Kubernetes ecosystem is undergoing a major transformation as the legacy Ingress model, long dominated by the NGINX Ingress Controller, reaches its limits and faces discontinuation. This talk explores why the Kubernetes Gateway API is emerging as the new standard for security and architecture. We'll dive into the shortcomings of traditional Ingress (including "annotation hell" and recent security vulnerabilities) and highlight the architectural and operational advantages of Gateway API. Finally, we will present a few options on how you can move forward and implement a new solution. Urs Zurbuchen is a Senior Security Consultant at Airlock. As an engineer and consultant for the design and implementation of IT security solutions, he is familiar with the requirements for secure digitalisation processes. Urs has more than 20 years of experience in designing and integrating web application security solutions (web application firewall, authentication, single sign-on, access control) as well as in designing and implementing identity & access management projects (user management, authorisation management, processes, provisioning). Mr Zurbuchen can advise on the conception of non-technical topics such as organisation, guidelines, compliance requirements and regulations, as well as on the implementation of application and system architecture audits. The event will be recorded and made available on VSHN's YouTube channel: [https://vshn.tv](https://vshn.tv). Subscribe to stay notified of updates. We expect all participants to abide by VSHN's Conference Code of Conduct: [https://www.vshn.ch/en/code-of-conduct/](https://www.vshn.ch/en/code-of-conduct/) If you would like to share your cloud-native projects at the CNC Switzerland meetup events or sponsor future events, just send us your talk suggestion here: https://cnc-meetup.ch. We look forward to hearing from you!

Start, bag drop and on-after at our favourite Urdorf hang-out, 5 min from Urdorf SBB station.

Let's get together for the next TechTalkThursday to learn new things and share experiences! 17:30 Door opening 18:00 **Intro** – Thomas Hug, CEO & Founder of Nine \~ 18:05 **One Platform, Any Scale: Roche Linux** – Karol Swiderski (Principal Solutions Engineer at Roche) \~ 18:30 **A Few Quirks About MCP** – Thimo Koenig (Co-Founder & CTO at tekkminds) \~ 19:00 **Agentic Engineering: How To Use AI As Peer (DevOps) Programmer With Context, MCP, Prompts, Rules and Workflows** – Jonas Felix (Coach & Co-Founder at letsboot.ch) \~ 19:30 Snacks & Drinks Have we aroused your interest? Then please register! We look forward to meeting you! You can also watch this event's livestream on YouTube: https://www.youtube.com/watch?v=B9_weIWteGA

Wir sprechen über unsere Coachingng Erfahrungen. Was wir erlebt haben als Klienten aber auch als Coach (falls wir selbst in diesem Feld tätig sind). Der Austausch soll dabei helfen die eigenen Erfahrungen neu zu reflektieren und somit neue Inspiration und Ideen bringen. Vielleicht ergeben sich auch Synergien an die wir bisher nicht gedacht hatten.

🌅 **This Meeting’s Theme: “Awakening”** In public speaking, an awakening is that incredible "a-ha!" moment 💡 you create for your audience. It's about using your words to switch on the lights, opening their eyes 👀 to a brand new perspective. It’s also about awakening the powerful, confident speaker 🤩 hidden inside you! So come ready to share your breakthroughs and be the spark ✨ that inspires a new way of thinking! \*\*\* 💸 You can **pay directly via Meetup**! For this meeting, we’re collecting **CHF 37**, which also includes a delicious dinner prepared by the restaurant. That’s dinner *and* personal growth in one go—what a deal! 🍽️✨ Per default, you're in for the vegetarian option. If you want meat, let us know via PM before Sunday! \*\*\* **🎤 Practice public speaking, sharpen your communication, and grow your leadership skills** Ever wanted to feel more confident speaking in front of others? Or perhaps become a better communicator and leader? Toastmasters is the perfect place to challenge yourself in a warm, supportive, and safe environment. Here, you can practice, learn, grow, mentor, and share—while having a laugh or two along the way. 😄 With over **16,600 clubs worldwide**, Toastmasters helps people reach their full potential as confident speakers and inspiring leaders. \*\*\* **👋 Welcome to Zuriberg Toastmasters Club** We usually meet on the **2nd, 3rd, and 4th Tuesday** of each month in the beautiful **Zunftsaal** at *Restaurant zum Grünen Glas* in Zurich. (We’ll always notify you if there's a change in venue.) \*\*\* **🗓️ What to expect at a meeting** Each meeting is hosted by the **Toastmaster of the evening**, who welcomes guests and introduces the *Word of the Day*. Then, we move into the main event: **🎙️ Prepared Speeches** – 3–4 speeches, each 5–7 minutes long **🍽️ Dinner Break** – Enjoy a delicious meal together **📝 Speech Evaluations** – Supportive and constructive feedback **🎯 Table Topics** – Fun impromptu speaking, open to guests too! **🔍 Meeting Evaluation** – A general overview and suggestions for improvement **🗣️ Guest Feedback & Closing** – Share your thoughts and wrap up the evening **🍻 After-Hours Conversations** – Stick around for drinks and good chats \*\*\* **❓ FAQs** **Do I have to speak at my first meeting?** Nope! You’re welcome to just observe. If you feel comfortable, you can introduce yourself and maybe even try Table Topics. Totally optional! **Is there a teacher or instructor?** There’s no formal instructor. The club is run by elected members, and learning happens through practice and peer feedback. You’ll receive a speaking guidebook and can also request a mentor. **Do I have to pay for the dinner?** Yes, the CHF 37 fee covers dinner and the venue. Soft drinks are not included and cost approx. CHF 6. **How many people attend?** Usually between **20–30 people**, a mix of members and guests. Meetup RSVPs mostly reflect guest numbers. **What is Toastmasters International?** A nonprofit founded in 1924 with **16,400+ clubs** in **141 countries**, Toastmasters helps people become better speakers, communicators, and leaders. **Can anyone join?** Yes! Anyone **18 or older** is welcome to become a member. **What is the refund policy?** Unfortunately, we cannot offer refunds for cancellations. But we know that life can get in the way, so guests cancelling two or more days prior to the event are welcome to reach out via private message and we can coordinate a visit at a later date without further charges. \*\*\* We look forward to seeing you—whether it’s your first word or your first speech. 😊 Come for the skills, stay for the stories!

Looking for the perfect excuse to create a more zen home? More candlelight, softer evenings, slower moments. Maybe this workshop is for you. ✨ Come create your own set of candle holders and an incense holder — bring your own ideas or get inspired by ours! All levels are welcome in this workshop, from clay pro's to beginners who have never touched clay before. :) If you have an idea in mind, bring in an image to help with dimensions/practicalities and serve as an aesthetic direction in your decorating. A 2-hour ceramic workshop where you’ll make and paint 2 pieces. Price of 55CHF is all inclusive of clay, paint, tools & firing.

We meet every Thursday for soccer at Juchhof 1. We have a changing room where you also can shower after soccer. Soccer takes place every Thursday, even if we have only a few registrations here on meetup. If you have more questions, please contact me. it's for free the first couple of times. After that you can decide if you want to join our club just for the Thursdays (60 CHF per year) or if you want to become a full member and get a license and join us at the games (270 per year).

Apéro Mensuel

**Ich Feier mein 36 Geburtstag und könnte noch 4 Personen einladen würde mich freuen auch heute in meinem Alter kennen zu lernen Empfang apero und anschliessend Dinner**

After a long hiatus of the compiler social, Lorenzo is joining us to talk about the exciting work happening at NVIDIA that you have probably heard about, namely cuTile/TileIR. As usual there will be pizza, snacks, beer, and soft drinks after the event for participants, sponsored by NVIDIA. **Astract:** GPU programming has evolved significantly over the past decade, driven by rapid hardware innovation such as Tensor Cores and new numerical formats. However, the gap between high-level productivity frameworks and low-level performance-centric programming models continues to widen. In this talk, we introduce cuTile and TileIR, a new block-level programming model and intermediate representation designed to simplify high-performance GPU development while preserving forward compatibility with evolving NVIDIA architectures. cuTile provides a tile-centric abstraction for data-parallel workloads, accessible from Python, while TileIR—an MLIR-based low-level IR integrated with CUDA—offers a stable, portable foundation for targeting tensor cores and future hardware generations. Together, they establish a middle ground between usability and control, enabling expressive kernel development without sacrificing performance. We present the programming model, illustrate it with examples, discuss performance considerations, and, if time permits, take a deeper dive into the core abstractions behind TileIR: https://github.com/NVIDIA/cuda-tile **Location:** The event is taking place in the room G59 in the CAB building of ETH Zurich at the Zentrum campus. Enter from Universitätstrasse 6.

**EdAlt Society Apéro** brings together professionals, leaders, executives, managers and founders around the capabilities that matter most in an AI driven world, leadership, communication and the art of understanding people. Each edition explores a distinct theme, in a refined setting designed for meaningful exchange, practical insights and genuine connections. **March 12, 2026 edition: Leadership Coaching Insights** Questions explored during the evening: • What is leadership coaching • How can leadership coaching be useful in a professional context **The event will be hosted by [Mihai Bejenaru](https://www.linkedin.com/in/mihai-bejenaru-dragos-b559aa56/) -** Leadership & Coaching Master · Faculty & Head of Leadership & Executive Coaching Department at EdAlt Institute · IServe Leadership Methodology™ Author · ICF PCC · EMCC SP · ITCA · ESIA Participation fee: 97 CHF To secure your place, please register here: [https://edalt.institute/society-apero/](https://edalt.institute/society-apero/) Apéro drinks and cocktail dinner will be served during the evening. Participation is limited to ensure a focused and meaningful discussion.

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

One of the most valuable parts of this community is the opportunity to think out loud with other product professionals. This session is built for exactly that. As we wrap up the quarter, it’s a great time to pause and reflect. What’s on track? What needs adjustment? Where could a small shift create bigger impact? Join fellow product professionals for a focused, interactive conversation designed to help you recalibrate for the next quarter. You’ll have the opportunity to share where you are, hear how others are thinking through similar challenges, and gain fresh perspective you can bring back to your team and organization. We’ll gather at 8:00AM, with discussion starting promptly at 8:15AM. 📍 First Watch - 7227 N High St Located in: The Shops at Worthington Ample parking is available. Food and beverages will be available for purchase. Start your morning with clarity and connection — we hope to see you there! ☀️

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

This month, we are in-person at GameArena!!! We will also be joined by students and their games from [Shawnee State](https://www.shawnee.edu/game-design-programs)! \-\-\- Join us for our our monthly COGG Prototype and Play event @GameArena! Come to play and showcase your games. We're back in the upper levels of the catwalk mezzanine area. It'll be packed with lots of camaraderie playing your game(s) and other's games on the 2nd floor as well as the 1st floor in the gaming room below the mezzanine. Light snacks and water provided but you can buy food and drinks at the bar (alcoholic drink ID required). [https://www.game-arena.co/menu](https://www.game-arena.co/menu) **Attendees:** Don't have a game to show? Not a problem! All are welcomed and invited from all ages and backgrounds. The more we can have to play test our games the better! **Developers:** Do you have a game that you would like to get critical feedback on? Would you like an excuse to work on a game with other talented artists, programmers, musicians, designers, and writers? Digital, table-top, non-experienced developers, and the like are welcomed! We'll provide signage for your game to help others learn more about your work. Wifi, outlets, tables, and seats (though standing tables also) are available. Come to the Prototype and Play workshop to collaborate and meet local game developers for an evening of epic and raw game play fun! Play works-in-progress, show off your own game, work with others to add polish to a game, or even lend your talents to other fellow developers. Can use South Garage at the Gateway with a $5 voucher on your way out. 75 E 11th Ave, Columbus, OH 43201 [https://maps.app.goo.gl/UwgveUYG37Jy7RtS9](https://maps.app.goo.gl/UwgveUYG37Jy7RtS9) If you have any questions or comments, as always, feel free to reach out to us at [info@thecogg.com!](http://info@thecogg.com!/)