Decentralized Systems & Applications

The **Digitec Galaxus Product Development Meet-Up** is back — this time diving into **recommender systems** with two talks bridging data science and engineering practice. **Talk 1: Insights from Building and Operating a Recommender System for Migros Supermarkets** *Max Nolte – Data Scientist & Team Lead at Supermarkt IT, Migros-Genossenschafts-Bund* When you think of a Migros supermarket, you don't usually think about recommender systems. Over the past four years, my team and I have built and operated the engine behind personalized Cumulus coupons and a few other digital touchpoints. I'll share how it works, why we invest in it at a brick‑and‑mortar retailer, and what we've learned, covering data, models, measurement, and the practical realities of running it day to day. **Talk 2: Recommendations at Digitec Galaxus — From Data Science to Engineering Practice** *Michael Weiss, Senior Software Engineer & Robert Rosenbach, Senior Data Scientist – Digitec Galaxus* How do you go from a promising model to a recommender system that is fast, scalable, and maintainable in production? We will walk through the Digitec Galaxus recommendation stack end to end: the engineering architecture that keeps recommendations snappy and reliable, and the data-science side of model training — what to optimize for, which input signals matter, and the trade-offs involved in both. The two presentations will take roughly a combined hour, leaving plenty of time for discussions, questions, and exchange afterwards over drinks and snacks. Whether you come from a software engineering, data science, product, or any other background — we'd love to have you join us!

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Update 25.03.: We are fully booked.** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Hi everyone — I'm Michael from **Digitec Galaxus**, where I'm responsible for the integration of recommender systems. Together with my colleagues at Digitec Galaxus' recommendations team, we’ve recently taken over the **Zurich Recommendation Systems** meet-up group and consider reviving it as a regular series. To kick things off, we're joining forces with the **Digitec Galaxus Product Development Meet-Up** for an evening on recommender systems in practice. We will present two talks: * **Max Nolte (Migros Genossenschaftsbund)**, amongst other things, on four years of building and operating the engine behind personalized Cumulus coupons — covering data, models, measurement, and the practical realities of running it day to day at a brick-and-mortar retailer. * **Michael Weiss and Robert Rosenbach (Digitec Galaxus)** on the full recommendation stack in Switzerlands leading e-commerce platform — from the engineering architecture that keeps things fast, scalable, and maintainable, to insights from model training: what to optimize for and which inputs matter the most. Each presentation will take roughly 30 minutes, including questions, leaving plenty of time for discussion and exchange afterwards. To participate, please sign up for the events in both groups: * **Digitec Galaxus Product Development Meet-Up** — Primary organizer: This is the sign-up that counts, and you’ll also find a more comprehensive announcement of the talks there ;-) [https://www.meetup.com/digitec-galaxus-zuerich/events/313707996](https://www.meetup.com/digitec-galaxus-zuerich/events/313707996) * **Zurich Recommendation Systems** (i.e., this event) — to help us gauge interest in running this as a continuous series going forward Looking forward to seeing you there!

It all sounded straight forward. Then the project started... Join us for an informal evening with fellow Agile practitioners, Scrum Masters, project managers, coaches, and anyone working with change, delivery, or transformation. We’ll meet at a local pizzeria, have some good food, and talk about the things that usually come up once the theory meets reality — challenges, lessons learned, different approaches, and questions we’re still figuring out. Nothing formal, just a chance to exchange ideas, meet people from the community, and have interesting conversations. Because some of the best discussions don’t happen in meeting rooms. They happen in the second floor private room of a pizzeria. 🍕 **The venue:** Da Raffaele brings a slice of Naples to the heart of Zürich's Altstadt. Think 48-hour dough, a 500°C wood-fired oven, and an amazing pizza. Two minutes from Central, close to HB — easy for everyone coming from across the city or the S-Bahn.

**[⚠️ >>Ticket needed (click here)<<](https://eventfrog.ch/en/p/dating/speed-dating/mystery-matches-blindfolded-speeddating-7432017503818140259.html) or** **[www.social-circle.ch](https://social-circle.ch/)**[ ](https://social-circle.ch/) ✨ **Mystery Matches: Blindfolded Speed Dating in Zürich** **Beyond Looks – Find Real Connection (25-40y)** Had enough of small talk and superficial dating? Dive into an experience where true chemistry sparks *before* appearances come into play. **The Vibe** Imagine sitting across from someone you can’t see. No distractions. No snap judgments. Just their words, their voice, and their energy. That’s **Mystery Matches**—Zürich’s one-of-a-kind blindfolded speed dating event designed for deeper connection. Join our WhatsApp chat to keep up with the event: https://chat.whatsapp.com/FoJN0DzRQgF232huSHiGOi (if you run into trouble open it in WhatsApp Web on your desktop) **How It Works** * Rotate through a series of short, blindfolded conversations. * Exchange a card with your name so your partner remembers who they spoke with. * With sight switched off, you’ll naturally tune into personality, tone, and presence. * After the rounds, blindfolds come off and the evening flows into a relaxed mingle—this time with faces revealed. (Name tags included!) * Stay for vynil music! **What’s Included** * A welcome drink * A guided, well-paced format that keeps things fun and easy * A welcoming, pressure-free atmosphere for playful connections **Where & When** * Venue: *Raedli bar* * Time: *19:00 sharp – please arrive on time!* ️ **Tickets** * Early bird: **19.-** Want more events like this? Join our newsletter: [https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM](https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM) ​**Important:** Tickets are **non-refundable**. Pictures might be taken during the event, if you do not want it please let the organizer know.

PLEASE PURCHASE **CHF 59 (early bird)** TICKET VIA [LUMA](https://luma.com/rii1rycb). Most AI workshops show you slides. This one gives you something to take home. ​In 2-3 hours you'll build a personal AI assistant that actually knows how you work: what drains you, how you prioritise, what you keep forgetting. No coding. No fluff. Just your laptop and one problem you wish would solve itself. ​You leave with something working. Tonight. ​**What to expect:** You'll learn how to build your own AI assistant using Claude and taking advantage of Claude skills and MCP connectors. All whilst you get to sip on your Aperol (or San Bitter as an alcohol-free alternative). **What to bring** A Claude account (free plan works). Claude Pro recommended if you want to go further on the night. ​**Works even better if you use one of these:** Notion, Asana, Linear, Jira, Google Drive, Gmail, Slack, ClickUp, [Monday.com](https://monday.com/). Claude connects directly to all of them, so your assistant can see your actual tasks without you pasting anything. **In Hottingen, Zurich, detailed location will be revealed after ticket purchase via [luma](https://luma.com/rii1rycb).** ​Don't use any of these? No problem, you'll still build something that works.

### Tägliche Abendmeditation ##### Für alle Friedensliebhaber und andere, für Meditations-Anfänger\*innen und Fortgeschrittene. Wir lieben die Stille. Wir meditieren mit offenen Augen - oder mit geschlossenen, wenn Sie dies vorziehen. Kommen Sie und geniessen Sie die kraftvollen Schwingungen des Friedens. Wenn Sie wünschen bieten wir auch gerne eine geführte Meditation an. **Willkommen auf der Welle des Friedens!** [www.brahmakumaris.ch](www.brahmakumaris.ch)

**Alle Infos zum Event in Bern / All information about the event in Bern:** **https://www.meetup.com/iota-bern/** Wir sind der grösste IOTA stammtisch der Schweiz und sind damit auch einer der grössten regelmässigen Altcoin meetups . **Der offizielle IOTA Bern Stammtisch findet immer am 2. Freitag des Monats um 18:00Uhr statt.** Der IOTA Bern Stammtisch wurde ins Leben gerufen, damit sich die IOTA / Krypto Community regelmäßig treffen kann, um über aktuellen Entwicklungen zu diskutieren und philosophieren. Auch wenn du noch nicht viel über Kryptos und IOTA weisst, bist du bei uns herzlich willkommen! Lerne mehr über IOTA & Kryptos indem du dich bei einem kalten Bier und/oder einem guten Essen mit Krypto-Ethusiasten, Trader & Investoren, Entwicklern und Unternehmern austauschst. ####################### ENGLISH ####################### We are the largest "IOTA stammtisch" in Switzerland and are also one of the largest regular Altcoin meetups. **The official "IOTA Bern Stammtisch" always takes place on the 2nd Friday of the month at 18:00 CEST.** The "IOTA Bern Stammtisch" was created so that the IOTA / crypto community can meet regularly to discuss and philosophize about current developments. Even if you don't know much about cryptos and IOTA yet, you are welcome to join us! Learn more about IOTA & cryptos by exchanging ideas with crypto enthusiasts, traders & investors, developers, and entrepreneurs over a cold beer and/or a good meal.

Echte Werte entstehen nicht am Bildschirm, sondern auf dem Feld. Und doch verliert unser Geld Jahr für Jahr an Kaufkraft – weil es einfach nur gedruckt wird. Wenn du dich fragst, wie Werterhalt und Freiheit heute noch möglich sind, ist dieser Abend für dich. Bitcoin bringt die Freiheit zurück: weg von Banken, Inflation und Kontrolle. Bitcoin macht dich zu deiner eigenen Bank, wie ein digitaler „Tresor“, in dem Wert langfristig gespeichert werden kann, ohne dass jemand ihn einfach „dazudruckt“. Im Vortrag „Bitcoin & Landwirtschaft – echte WERTschätzung?“ zeigt Christopher Burgert praxisnah: • Warum unser Geldsystem kaputt ist • Was Bitcoin wirklich ist - und weshalb es Wert schützen kann • Wie Bitcoin und Landwirtschaft perfekt zusammenpassen • Wie man Bitcoin im Laden oder Hofladen akzeptiert - und welche Vorteile das für Landwirte und Kunden bringt Christopher Burgert ist Freiheits- und Bitcoin-Enthusiast. Schon mit 16 Jahren erkannte er die Dysfunktion unseres Geldsystems und beschäftigt sich seitdem mit Werterhalt und dezentralen Strukturen. Auf dem Land aufgewachsen ist es ihm ein Herzensanliegen die dezentralen Strukturen vor Ort zu unterstützen und über Freiheit und echten Wert aufzuklären. Eintritt frei, freiwillige Spende

A slow, grounding practice designed to support nervous system regulation. We move through long held yin postures gentle functional breathwork and guided meditation with an emphasis on choice, sensation and unforced pacing. This class is about softening rather than pushing creating space and settling the body and mind. Suitable for all levels especially supportive if you’re seeking stillness, recovery or a quieter counterbalance to everyday demands. 📍 OM Yoga, Wallisellen 🗓 Once a month 🕰 10:45am, meeting point at 10:30am The class is held in English. Limited spots. Booking via link: https://www.kyomibloom.ch/yin-yoga-with-breath-and-meditation

**[⚠️ >>Ticket needed (click here)<<](https://eventfrog.ch/en/p/eating-drinking/digital-detox-cafe-7438257105201571682.html) or** **[www.social-circle.ch](http://www.social-circle.ch/)** **Unplug & Create: Digital Detox Café at Paint it Easy** Take a break from screens and reconnect with yourself and others at our Digital Detox event in Zürich’s most inviting creative space, Paint it Easy. We’ll kick off the evening with a relaxed atmosphere, setting the tone for a mindful and inspiring night. Join our craft group: [https://chat.whatsapp.com/JPIASNUJGwD23UUweSe0s3](https://chat.whatsapp.com/JPIASNUJGwD23UUweSe0s3) Choose your path for the evening: **Deep Talk with Question Cards:** Dive into meaningful conversations and connect with fellow participants on a deeper level. **Boardgames:** Just for fun or to meet new people. **Creative Activities:** * **Drawing** (included) * **Canvas Painting** (CHF 10/hour + canvas, e.g., 30x40 cm: CHF 9) * **Pottery Painting** (CHF 20–45 per piece) * **Jewellery Making with Beads** (CHF 10/hour + materials, avg. CHF 20–30) * **Linocut Printmaking** (CHF 25–35 per piece) **Location:** Paint it Easy, Zürich **Early Bird Ticket:** CHF 15 **Includes :** Welcome drink\*, drawing material, notebook, games, workshop **Doesn't include** : optional creative activity fees (depending on your choice) \*Warm drink, homemade iced tea, or lemonade Want more events like this? Join our community! [https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM?mode=gi_t](https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM?mode=gi_t) No experience needed—just bring your curiosity and an open mind! Whether you're painting, reflecting, or connecting, this is your space to recharge, express, and enjoy. Please note that pictures might be taken and used, if you don't want to be on them please let the host know. Tickets are not refundable. #digitaldetox

**[⚠️>>Ticket needed (click here)<<](https://eventfrog.ch/en/p/concerts/singer-songwriter/social-circle-x-sofar-sounds-speed-friending-live-music-7446627530260406071.html) or** **[www.social-circle.ch](http://www.social-circle.ch/)** **Social Circle x Sofar: Speed Friending & Live Music** Get your ticket here : [https://www.sofarsounds.com/events/64678](https://www.sofarsounds.com/events/64678) **Discount code if you come through Social Circle : SocialCircle10** Ready to swap small talk for real connections? Join us for an evening that blends the thrill of meeting new people with the magic of a secret live show. Join our whatsapp group ((for live music lovers) for updates: [https://chat.whatsapp.com/FO7KwPbfft2A8miluRzH8p](https://chat.whatsapp.com/FO7KwPbfft2A8miluRzH8p) **The Experience** Forget the typical crowded gig where you only talk to the person you came with. We’ve teamed up with **Sofar** to create a night of discovery: * **Speed Friending:** Kick off the night with curated rounds of "speed friending" designed to help you meet like-minded music lovers and local creatives. * **Intimate Performances:** Once the ice is broken, settle in for a lineup of incredible artists in a unique, non-traditional venue. * **The Element of Surprise:** You won’t know exactly where you’re going or who you’re seeing until the very last minute. **Essential Info** * **When:** Friday, 10 April * **Doors:** 19:30 \| **Show:** 20:00 * **Location:** A secret space near **Hardbrücke**. * **The Reveal:** We’ll send the exact address to your inbox **36 hours** before the first note hits. **Note:** Spaces are limited to keep the vibe intimate. Grab your spot and get ready to experience the city’s music scene in an entirely new way. What’s your favorite thing about discovering new music—the atmosphere of the venue or the thrill of hearing a sound you’ve never heard before? ​📸 Photos and short videos may be taken during the event. Let the host know if you prefer not to be in them. Tickets are non refundable. Want more events like this? Join our community! [https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM](https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM)

Join the CONNECTED Westerville Mastermind Group for a dynamic afternoon of B2B networking! This event is perfect for professionals looking to expand their business connections, share insights, and foster collaboration within the community. Whether you are a seasoned entrepreneur or just starting out, this event offers a valuable opportunity to exchange ideas, build relationships, and grow your network in a supportive environment. Connect with like-minded individuals, explore potential partnerships, and discover new opportunities for professional growth. Don't miss out on this chance to enhance your business network and take your career to the next level with CONNECTED Westerville Mastermind Group! We meet the 4th Monday of every month from 11am-1pm. Welcome and general networking from 11am - 11:30am with core meeting 11;30 - 12:30 and a final round of networking from 12:30 - 1pm.

**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** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

In this local meeting, you will discover knowledge that you can use to get over the past. The key to improving your personal motivation, self-confidence, and happiness is to get over your painful memories. When you become free of your past, you will be free from stress, anger, anxiety and depression. Studies show that negative emotions can affect your health. By being free of negative emotions, believe it or not, you will most likely even look younger, feel more energetic, and become healthier! 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 brought to you by the Dianetics and Scientology life improvement center.

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. 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) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

The global Azure community is coming together again, and Columbus is officially on the map. View the session lineup and speakers at [Global Azure Columbus 2026](https://coazure.github.io/cbus-global-azure-2026/) On **Saturday, April 18, 2026**, the Azure Columbus Meetup, DevOps Meetup, and Code and Coffee Meetup are hosting our local edition of Global Azure 2026. This is a free, community-driven event packed with learning, networking, and all things Microsoft Azure. Whether you’re building modern cloud-native apps, experimenting with AI agents, deploying containers, automating infrastructure, or just beginning your Azure journey, this event is for you! **What to Expect** * Engaging technical sessions * Real-world Azure architecture & cloud-native patterns * AI, agents, automation, and modern DevOps * Food and drinks (because learning burns calories) * Time to connect with fellow engineers, architects, and cloud enthusiasts **Who Should Attend?** * Software engineers (any language, any stack) * Cloud architects * DevOps engineers * Data professionals * AI explorers * Platform builders * Anyone who loves solving hard problems with great tools If you build, deploy, automate, scale, monitor, or optimize in Azure, you’ll feel right at home. **Why Global Azure?** Global Azure is a worldwide community event where Azure user groups host learning sessions on the same day across the globe. It’s grassroots. It’s technical. It’s practical. And it’s powered by people who genuinely love sharing what they’ve learned. And yes, it’s free to attend!