Reactive Programming

Dies ist ein informelles Treffen für Lernende, die ihre ersten Schritte in der Programmierung machen oder ihre Grundkenntnisse vertiefen möchten. *** This is an informal meetup, for learners that want to do their first steps in programming or want to consolidate their skills. We spend one hour and a half working on tutorials, exercises or projects. If you need help to get started, we will help you finding a good way for learning. You should be prepared to spend your time "doing things": just hanging around and listening might get boring, if all other people are learning on their side. There are experienced people are around and you can ask questions as soon as their arise or bring with you questions you have had during the week. During the last half an hour, we do a (simple) exercise together. We speak German, English, and a few other languages. Currently, how main programming languages are: * Python * Javascript * Java * Flutter * C++ * C * C# * PHP But you're free to learn any programming language during our Co-Learning! If you want to learn more about our Co-Learning, please have a look at our website (no frequent updates...): https://opentechschool-zurich.github.io/ If you're starting with Python, we can suggest: * Learning Python the hard way (https://learnpythonthehardway.org/python3/) (for Python 3). * The Solo Learn Python 3 Tutorial (https://www.sololearn.com/Course/Python/). * A big list of Python tutorials: https://docs.python-guide.org/intro/learning/ For Node.js: * Nodeschool: https://nodeschool.io/ For C++ * https://de.wikibooks.org/wiki/C%2B%2B-Programmierung * https://www.sololearn.com/Course/CPlusPlus/

Anybody who wants to practice their programming skills is welcome. We share our ideas, learn from each other, do some exercise, ask questions, etc. This meetup is the best for those who want to improve their skills by programming and learning in a group If you want to learn more about our Co-Learning, please have a look at our website: [https://opentechschool-zurich.github.io/](https://opentechschool-zurich.github.io/) \*\*\* We have a chat group you can join to get more information: [https://app.element.io/#/room/#ots-zh:matrix.org](https://app.element.io/#/room/#ots-zh:matrix.org) (You need to create a free account if you don't already have one) Remote participants are also welcome. You first need to join the Element chat and then get into the video call that we start at around 19:00 (if we forget, pleas ping us in the Element chat!) \*\*\* Our main languages are Python and Javascript, but we welcome every programming languages. Some of the skills we can help you learning: * Python and * ... PyGame (Zero / Play) -.... Flask * ... Jupyter and data science -... PySide2 / PyQt * ... Shoebot * C++ and * ... Qt * ... cmake * ... and modern C++ * Flutter for Apps * PHP and * ... Vue.js * ... Wordpress * JS and React.js We have a few Github repository that can be interesting to browse:: https://github.com/opentechschool-zurich/

**Body Workout** Join us for an energizing full-body workout combining endurance, strength and coordination exercises in a fun and supportive atmosphere. This course is part of the **Active City Winterthur** program and participation is completely free of charge. The training is suitable for both men and women, and all fitness levels are welcome. The focus is on moving, challenging yourself and having fun together. Please bring: • a towel • something to drink The workout takes place in all weather conditions except in case of very heavy rain. A trainer will always be present on site. **About us** The International Club Winterthur aims to connect, support and integrate individuals and families with an international background or interest. We are a non-political, not-for-profit, English-speaking association fostering friendships and networks in Winterthur and the surrounding area. Follow us on MeetUp for upcoming events: [https://www.meetup.com/the-international-club-winterthur/](https://www.meetup.com/the-international-club-winterthur/) **Disclaimer** Please note that the International Club Winterthur is not responsible for any injuries or damages that may occur during the event. Photos may be taken and shared on the club’s social media platforms.

\*\***Please RSVP on our official Friends of Figma page:** [https://friends.figma.com/events/details/figma-zurich-presents-speak-the-room/](https://friends.figma.com/events/details/figma-zurich-presents-speak-the-room/)\*\* For our next Friends of Figma Zurich meetup, we're heading to Constructor Nexademy, a place built on the belief that learning doesn't stop when school does! An evening of lightning talks, live demos and honest conversations, hosted by a team that's been helping people reinvent their careers and grow new skills outside the traditional classroom. 📅 Date & time: 19 May 2026, 18:00 📍 Location: Constructor Nexademy, Förrlibuckstrasse 150, 1st floor, Zürich Agenda for the evening: 18:00 Welcome 18:30 Talks + Q&A 19:15 Apéro and chats 🍷 What's on the lightning talks & demos agenda? 🏫 Meet Constructor Nexademy An introduction to Constructor Nexademy, who they are, what they build, and how they're training the next generation of developers and AI practitioners in Zürich. 🎤 How AI can help designers translate their work into influence with Flore de Crombrugghe Design without influence is just decoration. This talk is a retrospective on PitchPivot, an AI tool built to help designers translate their work into business language. More than a project recap, it's an argument: designers already have what it takes to earn a seat at the table. They just need to learn to speak the room. Short talks, demos and plenty of time to connect during the apéro. Curious how designers are turning their craft into real business influence? Come join us ✨👉 [https://friends.figma.com/events/details/figma-zurich-presents-speak-the-room/](https://friends.figma.com/events/details/figma-zurich-presents-speak-the-room/)

Hi everyone, Following the fantastic energy of our first gathering of 2026 at Horn & Company in January—where we kicked off the year with three insightful speeches—we are excited to keep that momentum going! While the January session gave us plenty of food for thought, this next meetup is all about the community. We’re organizing an informal evening to reconnect, discuss the latest in People Analytics, or simply enjoy a drink with fellow practitioners before the summer begins. The gathering will take place at a central, relaxed venue near Zurich HB (details will follow and be shared with all registered participants – make sure to share your email during registration as a prerequisite). This is a "pay-your-own-way" event - you can order drinks and snacks as you wish. **Date and Time:** Tuesday, 19 May 2026 @ 18:30 – 20:00 **Location:** Near Zurich HB - details will follow and be shared with all registered participants on Meetup. **Costs:** This is a "pay-your-own-way" event. You can order drinks and snacks as you wish. **Registration:** meetup.com/people-analytics-switzerland (RSVP close time on Thu, 14 May at 23:00) **Contact:** marco.selva@ferris.ai / andre@obereigner.co We are looking forward to seeing you there. Best regards, Marco and Andre

JavaScript is single-threaded, yet it powers the world's most complex real-time interfaces. Behind that magic lies the event loop; a mechanism that is often misunderstood, feared, or simply ignored until a performance bottleneck brings your app to a screeching halt. This May, we’re celebrating Star Wars month by traveling to the core of the JS galaxy to bridge the gap between "it just works" and "I know why it works". Join us for an evening of live-coding and deep dives. Whether you’re a Padawan or a Jedi Master, come learn how to make the runtime work for you, not against you. **Agenda** * 17:30 – **Doors open** * 18:30 - 18:50 – **Settling in & Intro** * 18:50 - 20:30 – **Talks and pizza** * 20:30 – **Networking** **Explore the detailed agenda and speaker info: [https://zurichjs.com/events/may-2026](https://zurichjs.com/events/may-2026/?utm_source=zurichjs&utm_medium=meetup&utm_campaign=meetup_track)** **About the organizers** * **[Bogdan Ilie](https://www.linkedin.com/in/ilie-bogdan/)** is a user advocate. He's dipped his toes into Web Development, Technical Writing, Marketing, Design, and more. That makes him uniquely predisposed to identify improvement opportunities anywhere in the chain, or come up with unique solutions to problems. Nowadays, he's building websites and webapps at novu ag, using his beloved framework, Vue. * **[Faris Aziz](https://www.linkedin.com/in/farisaziz12/)** is a front-end master and Staff Software Engineer at Smallpdf, after his Engineering management job at Navro, a fintech company in the UK. Faris is a mentor, conference speaker, and workshop instructor, most recently at CityJS and other major conferences. He has contributed to open-source projects like Raycast and has mentored on platforms like Mentor Cruise. His projects include work on GCN, Eurosport, Discovery+, Fiit (a top UK fitness app), and he was the founding engineer of Navro in London. He also serves as a technical mentor at the Bletchley Institute. * **[Nadja Hesselbjerg](https://www.linkedin.com/in/nadja-r%C3%B8mer-hesselbjerg-47002a12b/)** is a Zurich-based frontend developer with a flair for crafting sleek, user-friendly web experiences. With a passion for innovative UX/UI design, she transforms complex ideas into intuitive digital solutions. Her multicultural background adds a unique perspective to her work. When she's not coding, Nadja is likely exploring the latest design trends or enjoying the vibrant Swiss tech scene. **Who are the awesome sponsors and partners?** * **[Vercel](https://vercel.com/?utm_source=zurichjs&utm_medium=sponsored_meetup&utm_campaign=zurichjs_partner_2026)** is THE platform for frontend developers, providing the speed and reliability needed to create at the moment of inspiration. We love Vercel because they’ve turned the "manual labor" of deployment into a simple `git push`. By handling the heavy lifting of global infrastructure and serverless scaling, Vercel allows us to focus on what we actually enjoy: building great user experiences. Whether you’re using Next.js, Nuxt, or SvelteKit, Vercel is the gold standard for shipping fast and staying in the flow. * **[GYFF](https://www.getyourfreefast.ch/?utm_source=zurichjs&utm_medium=sponsored_meetup&utm_campaign=zurichjs_partner_2026)** is a Swiss platform that facilitates connections between IT experts and businesses, where they vet both the companies and the freelancers, so the collaboration goes smoothly. **Get involved** * Have an interesting idea? * Something missing from all meetups in this space? * Do you have feedback? * Wanna buy us a coffee? * **Got a venue idea?** We love rotating locations to showcase Zurich’s tech ecosystem. Reach out, we’re always scouting fresh spots for our upcoming events. There are multiple ways to get in touch: * **[conf.zurichjs.com](https://conf.zurichjs.com)** \- get your conference ticket and find out more\! * **[zurichjs.com](http://www.zurichjs.com/)** \- the source of truth for all things zurichjs\, including all social links to follow us and interact with us online Our goal is to create a space where everyone can bring value and feel like they are getting something out of it. We are open to sponsorships and partnerships, and we would appreciate you **sharing the event** and message us about opportunities. We are also committed to fostering a respectful and psychologically safe space where anyone can share their ideas. If this is your first time speaking, or if you need help preparing for a talk, we are happy to offer guidance and support.

Let's meet at the CNC meetup on Thursday, May 21st, 2026, at 15:00 CET. **Location:** VSHNtower, 8th floor, Neugasse 10, 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 – Kuberik: Safe, Hands-Off Deployments for Kubernetes (Luka Rumora) 15:35 – 5 minutes pause 15:40 – Kubernetes Without the Operator: A Minecraft Panel with Rust and kube-rs (Hadi Cherkaoui, CM Informatik AG) 16:10 – 5 minutes pause 16:15 – Vibe Code Survival Guide for Open-Source (Vadim Bauer, 8gears) 16:45 – 5 minutes pause 16:50 - Writing a Kubernetes Cluster Autoscaler Provider with externalgrpc (Marco De Luca, VSHN) 17:20 – Final words, networking & apéro Kuberik: Safe, Hands-Off Deployments for Kubernetes (Luka Rumora) Most teams deploying to Kubernetes end up in one of two places: either GitOps that stops at applying manifests, or brittle CI pipelines full of bash and glue. Both fall short of true end-to-end delivery. The ideal is well known—canaries, health checks, smoke tests, promotions, rollback—but Kubernetes lacks a native, reusable way to compose these without reinventing everything. Existing tools solve pieces (Argo Rollouts, Flagger, Kargo), but not the whole pipeline. Kuberik fills that gap: it orchestrates the full journey from release to production—detecting, gating, rolling out, verifying, and promoting—using opinionated, pluggable Kubernetes resources that integrate with existing GitOps setups. Luka is a Lead SRE with 10 years of experience building platform infrastructure and internal developer tooling, always with the same focus: systems that are robust, easy to maintain, and a pleasure to use. Over the years, he has watched the delivery tooling landscape change, from Jenkins to GitLab CI to Drone to GitHub Actions, yet the fundamental approach to CD has stayed the same: step-based pipelines with the same challenges they had a decade ago. He built Kuberik because he believes we can do better. Kubernetes Without the Operator: A Minecraft Panel with Rust and kube-rs (Hadi Cherkaoui, CM Informatik AG) Anvil is a Kubernetes-native Minecraft server panel written in Rust. It creates one StatefulSet, PVC, and Service per server through direct kube-rs calls, with no CRD and no controller. The Kubernetes API itself is the runtime state store; every user action is a direct API call. This 20-minute talk argues that the operator pattern is sometimes the wrong tool. Controllers earn their complexity when there's autonomous state to reconcile. They become a ceremony when there isn't. Anvil is a worked example of the imperative alternative, running on a home lab k0s cluster. Hadi Cherkaoui is a 17-year-old EFZ Plattformentwickler apprentice at CM Informatik AG in Schwerzenbach, ZH. He works daily with k0s and FluxCD, and is interested in Kubernetes, Rust, infrastructure automation, and homelab projects. Vibe Code Survival Guide for Open-Source (Vadim Bauer, Container-Registry.ch) Vibe code is flooding open-source projects with an ever-growing volume of pull requests and ideas. Banning AI contributions isn't the answer, yet it is difficult to resist. How can open source projects survive and keep progressing despite the pressure? This talk covers the project playbook we're building in CNCF Harbor and Harbor Satellite: defining a clear project direction so contributors, human or AI-assisted, know what's in scope before they contribute. Setting explicit acceptance criteria and guardrails. Using AI on the maintainer side to triage, review, and filter the growing volume of contributions. Deciding as a project where your boundaries are, what's core, what's an extension, and what's out of scope, so you stop drowning in well-intentioned feature PRs that slowly erode coherence. We share what works, what fails, and how we are rethinking open-source, contributions, community, and project Vadim Bauer is a Container Silverback with over a decade of experience in running containers in production. As a maintainer of the CNCF project Harbor, he focuses on extending the boundaries of OCI artifact management, adoption, and developer experience. At 8gears, Vadim helps cloud providers, ISVs, and enterprises adopt Harbor and use OCI capabilities. Writing a Kubernetes Cluster Autoscaler Provider with externalgrpc (Marco De Luca, VSHN) The Kubernetes Cluster Autoscaler decides when to scale, but it doesn't know how to create a VM. That's the cloud provider's job, and the upstream tree covers mostly big clouds. With externalgrpc, you can plug virtually any cloud into the autoscaler over gRPC. This talk first looks at how the Cluster Autoscaler works under the hood and where the cloud provider fits in. Then we walk through implementing one for a Swiss IaaS provider as an out-of-tree gRPC service: the design choices, the parts of the contract that matter, and the gotchas you only find by reading the autoscaler source. By the end, you'll know how to attach autoscaling to a cloud that isn't on the upstream list. Marco De Luca is a software/infrastructure engineer at VSHN AG. He spends most of his time on Kubernetes platforms, developer tooling, and making sure things don't break at 3 AM. At mdnix.io, he writes about infrastructure, Linux, Kubernetes, and the things he builds along the way. When he's not behind a terminal, he's somewhere in the Alps with his camera or having a private jam session with his guitar. 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!

https://www.komoot.com/de-de/collection/2875816/-pizza-gravel-zurich Pizza Gravel Zurich plans social rides on mixed surface around Zurich. Enjoy a nice ride and pizza afterwards. Please check the Komoot Pizza Gravel Zuruch collection for the upcoming tour.

We are back for another round of a Lock Picking & Soldering Dojo, presented by DC4131. This is a hands-on technical workshop featuring finessing your skills at lock picking and/or soldering (#BadgeLife) [DEFCON Switzerland members ](https://www.defcon-switzerland.org/#pages/portfolio)will have priority to available spaces & equipment. Spaces & hardware are limited and thus are provided in a 1st come 1st serve basis. In this edition, we invite you to explore and experience lock picking and soldering (#BadgeLife), taught by Vratko, Salvatore Pascal and Remy. Don't miss out on a great day of fun, and who knows where these newly acquired skills may come in helpful..... ;) Stay Legal. **What can you expect?:** **14:00** \- Intro presentations to soldering safetys\, challenge area\, couch lockpicking **Soldering Workshop (#BadgeLife) -** **14:00 - 17:30** \- Drop in/out style \- DIY Soldering (Beginner and advanced) Soldering-Kits available and free for all [official DC4131 members](https://www.defcon-switzerland.org/#pages/portfolio), and also available (with a small charge) to non-members, while supplies last. **Lock Picking Workshops -** **14:30** \- Intro to the basics \- Hands\-on lock picking tutorials **15:30** \- Challenge\! Competition Introduction \- What's at stake to win\! **15:45** \- Advanced lock picking tutorials **16:30** \- Challenge\! Competition **17:00** \- Competition Finals and Winner Award Ceremony **18:30** \- Close Down If you're still not a DC4131 member, and would like to join the family, drop us a mail at ***membership[@]defcon-switzerland[.]org***, and we'll get you singed up in no time! :)

Welcome to the Competitive Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Players are accepted into the session based on skill suitability. This session is for experienced players looking for quality games. Play is focused on doubles with a competitive mindset and consistent rallies. You should be comfortable smashing, return smashes and keeping up a moderate tempo throughout the session. New players and those who are new to badminton are welcome to join the PM Session (Open Level Play). Payment can be made via TWINT after the session.

Welcome to the Open Level Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Open to players of all skill levels. This session is for doubles with a relaxed and social focus. Ideal for casual play, improvement and meeting new players. Payment can be made via TWINT after the session.

We keep it a fun and practical language exchange. First thing you'll notice is we match you with **fluent speakers** in your target language. **Event Flow** **18:45–19:15** → Registration Scan the QR code to tell us your fluent and target languages. **19:15–20:30** → Language Exchange Powered by our **Learn by Flipping** method. **20:30 onwards** → Stay, chat, or head off — totally up to you 😉 **What is "Learn by Flipping"?** **Practical** → You speak with fluent speakers in your target language. **Collaborative** → Every 5 minutes, you switch roles: learner ↔ helper. **Fun** → Small groups, good energy, and a bar atmosphere — without the chaos. Save some time by [Signing up to our web app](https://fliplingoes.com/) beforehand. **Entrance:** 10 CHF (includes a tapa) Please note, event registration closes after 7:15PM

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

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

It’s time to take control of your mental health. How do you get rid of stress, anxiety and uncertainty? These emotions are buried deep in your reactive mind. Find out what the reactive mind is, and in the process find yourself. Here is the secret of being positive and free: Thinking positively is not enough. You also have to get rid of the negative thinking. Your mind is like a garden. You can plant many beautiful flowers in it, but if you don't get rid of the weeds when you plant your flowers, the weeds will soon take over the whole garden. A positive thought is like a flower in your mental garden, and a negative thought is like a weed. You cannot expect to have a positive mindset if you continue to have negative thoughts dwelling and growing there. So, how do you get rid of the negative thoughts? That's what this Meetup is all about. Attend this local meeting and find out! The Meetup event will be led by a consultant who had helped many people live happier in life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Dianetics & Scientology life improvement center.

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

**TBA**

**Building a great product is one thing—building momentum behind it is another.** Join **Senior Product Manager Adam Solaiman** and **User Experience Manager Tyson Smith** for a behind-the-scenes look at what it takes to turn complex ideas into scalable products inside large organizations. In this session, they’ll share how teams move from ambiguity to execution—navigating organizational complexity, aligning stakeholders, and continuously evolving products after launch. You’ll walk away with insights on how to: * Build and sustain momentum across teams * Adapt to changing priorities without losing direction * Scale products thoughtfully in complex environments Whether you're driving a new initiative or growing an existing product, this conversation will give you practical strategies to keep things moving forward. Come connect, learn, and swap stories with fellow product professionals. \-\-\- Food and drinks will be provided by Switchbox, our generous host. Free parking will be available at the front and back sides of the Switchbox Office.

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9