Hashing

Been a while since we ran in Oppycon. I'll keep it short and flat.

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!

A non-obvious English stand-up night with comics from Zurich and beyond. Expect loose ideas, polished bits, unexpected jokes, and laughter from places you don’t expect. **Tickets** on >> **[Eventfrog here](https://eventfrog.ch/jokes-jokes-jokes)** << Hosted by Swiss-based comedian **Łukasz Segiet aka Woocash ([@woocash.comedy](https://instagram.com/woocash.comedy))**, known for off-beat, unpredictable, vibe-driven comedy and a favourite among fellow comedians for his distinctive, non-obvious approach. He invites a lineup of friends and local comics to share the stage each edition. **Doors Open: 19:30** **Show Begins: 20:00** **Tickets** on >> **[Eventfrog here](https://eventfrog.ch/jokes-jokes-jokes)** <<

Registration: https://www.elevate-tech.ch/event-details-registration/women-leaders-v-their-work-their-journey-at-aws ## Celebrating Women's Month at AWS Join us for this fantastic event as we celebrate Women's Month and be inspired by the work and the journey of women in leadership positions. This is a very special event in collaboration between Elevate Tech and AWS Zurich, which has become a tradition since this is the second edition! As always, we will have a stellar lineup of women leaders to inspire us and share their path to leadership. Agenda: 17:30 Doors Open & Check in 17:45 Welcome, Intro to Elevate Tech & AWS 17:55 **Mercy Rizzo**, Senior Global Engagement Manager at AWS, *No Permission Required: How IT Empowers You to Lead, Disrupt, and Dare* 18:20 **Stephanie Ossenbach,** Group Sustainability Officer at dormakaba, *Beyond Net Zero: Risk, Resilience & Rising as a Woman in Tech* 18:45 **Maria Requeman,** Head of CRM & Data at General Motors Europe, *From Data to Relationships: Building Customer Value That Lasts* 19:10 Closing Remarks & Feedback 19:25 Networking Apéro 21:00 Doors Close Registration: https://www.elevate-tech.ch/event-details-registration/women-leaders-v-their-work-their-journey-at-aws Tickets are free, with an optional contribution to Elevate Tech. Follow us on LinkedIn to get notified about future events faster: https://www.linkedin.com/company/elevate-tech-ch We look forward to seeing you there!

Start um 19.00 Uhr ab Marktplatz Zürich Oerlikon Dauer: 60 Minuten Lauftempo: 6 min/km (10 km/h) Start 7pm at Marktplatz Zürich Oerlikon Duration: 60 minutes Pace: approx. 6 min/km (9:39 min/mile)

Bouldering is like a whole body puzzle! And if you never tried we would be happy to have you join us! And the best part is...it's fun and challenging at every level. It is Rock climbing without the ropes, but with lower heights and nice \*soft mats\* to break your fall. :) At Boulderlounge Schlieren we have many routes and skilled staff. We are usually a group of 10-15. And we usually meet at 19:00 at the entrance of Boulderlouge. Some come earlier and some later, but either way write in the chat (see below) and someone will be there to find you and welcome you! Be looking for Ana or Marco. Entrance Price: 23 CHF Shoe rental: 7chf (in case you do not have) At the end of the session we sometimes have a drink and hangout with the group. The gym has food, snacks and drinks. -> Write us a message if you want to be added in the whatsapp group where we coordinate also for other sessions! We hope to see you there! PS: Are you visiting Boulderlounge for the first time? Then please register before the meetup: [https://216.webclimber.de/register ](https://216.webclimber.de/register)

Just when you thought you could stash the thermal leggings and show some skin - surprise! Winter took one look at your pasty knees and decided to cum again... This week’s trail promises the full Game of Thrones experience: cold winds, possible snow, and the vague sense that nobody will survive past the beer stop. Hares have bravely marked a scenic route through what used to be “springtime” but now promises to be full of that white sticky stuff we all love. Expect shiggy, frozen fingers, and the chance to reflect on your life choices while wondering if hot mulled wine counts as a balanced electrolyte replacement. Circle will be in the Platz next to Wipkingen Bahnhof and on-after will be Gelateria di Berna. **Where**: Wipkingen Bahnhof Mobility car **When:** We'll meet at 6:50 pm to start at 7:00 pm. There's a charge of CHF 5 for participating, which covers all you can drink beer/cider (and non-alcoholic alternatives) plus snacks afterwards. **All Welcome:** If you are new, curious, and want to get out of the house, stretch your legs, talk shit, enjoy a drink, and hopefully a laugh, then here's what you need to know: • We are a social running/walking group, physical fitness is not required, but a sense of humour is useful. • The aim is to find the '*Beer Stop*' at the end of the '*trail*' and have fun. • 'True Trail' is typically 4-7 km. Some will go less (especially those walking or walk/running), and some over-achieving fast runners will go further. • The '*Hare*', which changes each event (along with location), cleverly lays the trail (typically with flour marks) so that everyone reaches the end at the same time. • There is always a place to deposit your bag and sometimes a place to change. • **After Trail**, we group for \~20-40 minutes for drinks, snacks, and some fun. This '*Circle*' is typically outside, so leave something warm in your bag in winter (and bring a flashlight when it's dark). If you don't want to stand around drinking afterwards, you can head home. We occasionally all go to a restaurant afterwards. **Why bother leaving your warm & dry sofa?** If you enjoy getting outside, being around people, and doing something a bit different, you will probably enjoy hashing. Exercise is important, and this is probably the least boring way to get it. 'Hashing' and the idea of some physical activity to work up a thirst, have been around for almost 90 years and there are groups (*Hashes*) in most major cities. Its humor and 'traditions' can be explored on the internet - **or you can just come along and find out.** *See you there.* We are of many nationalities, all ages, full of misfits and idiots (at least there is no one taking themselves seriously!) and always welcome newbies 'Virgin Hashers' and visitors from other groups. For more about Zürich Hash House Harriers, check out [www.zh3.ch](http://www.zh3.ch/) ( [http://www.zh3.ch/](http://www.zh3.ch/) )

Every year the Zurich Friends of Haskell meet for a general assembly as per the [statutes of the association](https://docs.google.com/document/d/1-8eHAK40hiH5jv79AscWtf3pyUNxx4Ls1LwkpLYK--8/edit?usp=sharing). The purpose of the Zurich Friends of Haskell is to organize ZuriHac and the HaskellerZ meetup. The general assembly gives you the opportunity to learn what the association has been doing in the year 2025 and to contribute to ZuriHac, the HaskellerZ meetup, and the Haskell community in Zurich. The general assembly is open to all members of the ZFoH. If you are not a member yet, please head over to [the ZFoH website](https://zfoh.ch) and sign up for membership. The agenda is as follows: 1. The board will present a summary of the association's activities in 2025. 2. The treasurer will present the financial report for 2025. 3. We vote to discharge the board for their work in 2025. 4. We will discuss the goals and aspirations of the association for 2026. 5. We will elect the board for the years 2026 & 2027. Please let us know if you have further topics you would like to discuss. Note: members of the ZFoH will receive a separate invitation via email. Please RSVP to this meetup event anyway so we get an accurate picture of who will be attending. Thank you! Looking forward to seeing you at the GA! PS: We'll be holding a regular HaskellerZ meetup right after the general assembly, to be announced as a separate Meetup event. Please RSVP for that event separately once it is announced.

Web Zurich presents inspiring talks all about the web. Join us for the March 2026 meetup! We will have two talks as well as chit-chat and drinks. Whatapp: [https://chat.whatsapp.com/FxOfVTK9nf431xHtVl3eGK](https://chat.whatsapp.com/FxOfVTK9nf431xHtVl3eGK) Website: [https://webzurich.ch](https://webzurich.ch) 18:30 \~ 19:00 Arrival time with drinks, chat and introduction 19:00 \~ 19:40 *Christian Heitzmann* **Why Documentation Won’t Write Itself—and AI Won’t Save You** For the last 15+ years, I’ve joined and consulted software teams that all struggled with the same problem: nobody likes writing documentation, and everybody pays the price for it. New developers spend weeks reverse-engineering codebases, architecture lives in people’s heads, and wikis quietly decay into noise. With AI now entering the picture, many hope it will fill the gaps. It won’t. I’ll show the simple ideas that change everything: how to think about documentation in the right levels, how to keep it close to the code, and how to avoid the decay we all know too well. These are the decisions that have to be made before any tool or process can work. The documentation won’t write itself. But there are ways to make it far easier and far more reliable. 19:40 \~ 20:00 *Marco Gähler* **How to write good code** There is an infinite amount of solutions how you can solve a programming problem. Some are better, others are worse. The best solutions are easy to understand, maintain and errors are not able to hide. I wrote a book "Software Engineering Made Easy" about this topic and I'm more than happy to explain some principles that make your code better. Most of them are quite simple to understand, once you understand the mechanics, why your code always breaks. 20:00 onward More drinks & chat We look forward to see you there! Location https://zurich.impacthub.ch/space/bogen_d/ Viaduktstrasse 93, 8005 Zürich, Switzerland Visit our website https://webzurich.ch/ for more information about the Web Zurich community. This event is supported by Impact Hub Zürich, The global community of entrepreneurial people prototyping the future of business. At Impact Hub, you can connect, collaborate, co-work and create great content in an inspiring environment.

With AI dominating every conversation, it’s becoming harder to separate real business value from hype. In this roundtable, we’ll explore how AI is actually used in modern analytics (beyond chatbots and flashy demos). Our special guest, Dr. Pawel Kampczyk, Head of AI & Data Science at Aktiia, will uncover where large language models and machine learning make a real impact, where their limits are, and how companies can use them with confidence. You’ll leave with a clearer mental model of how AI is used in marketing and analytics today. What to trust, what to double-check, and where it can drive measurable value for your business. The Analytics Roundtable will as always take place at the Advance Metrics office at the On Labs Tower in Zurich at Förrlibuckstrasse 190.

🍷 **An intimate writing workshop in the artistic, soulful setting of _Moudi_.** 🌿 Theme of the evening: Haiku. Join us for a special creative writing session where we will explore the delicate art of haiku poetry. Together, we will: * Discover the traditional structure and rhythm (5–7–5 syllables). * Learn about seasonal references (kigo) and imagery. * Explore Japanese words and aesthetic concepts linked to haiku. * Read selected haiku and reflect on their simplicity and depth. After a few gentle warm-up exercises to spark your creativity, you will be invited to craft your own haiku. At the end of the session, those who wish to share are welcome to do so in a supportive and relaxed atmosphere. No prior writing experience is needed. Curiosity is enough. This is not about perfection — it’s about observation, presence, and capturing a fleeting moment in words. 🍷_ To support our host venue, please order a drink during the evening. For those who are hungry, Moudi’s famous and delicious mezze will be available to share at the end of the session._ Bring your curiosity and leave with a poem (and perhaps a new friend)! ⌚️**When**: Wednesday, March 25 | 6:45 PM – 8:30 PM 📍 **Where**: Bei Moudi am Kunsthaus (restaurant/bar)

**[⚠️ >>Ticket needed (click here)<<](https://eventfrog.ch/en/p/dating/singles-party/single-party-speed-dating-ping-pong-7429879350999159588.html) or** **[www.social-circle.ch](https://social-circle.ch/)**[ ](https://social-circle.ch/) **Ping Pong Doubles Night – Nur für Singles! (25–40 Jahre)** *(English below)* Keine Lust mehr auf awkward Smalltalk bei Dating-Events? Dann lass uns das Ganze spielerisch angehen. Komm zu unserer **Ping Pong Doubles Night für Singles**, bei der du im Laufe des Abends mehrfach die Partner:in wechselst, locker neue Leute kennenlernst und bei schnellen Ballwechseln, miesen Aufschlägen und guter Stimmung connectest. ✨ **Special:** In der Pause gibt es eine kurze **Speed-Dating-Session**, damit du auch abseits des Tischs gezielt ins Gespräch kommst. Egal ob Anfänger:in oder heimliche:r Profi – das Format ist so gestaltet, dass alle mitmachen und Spaß haben können. **Was dich erwartet** * Zufällig zusammengestellte Doppelteams (Partnerwechsel mehrmals im Abend) * Kurze Speed-Dating-Runde in der Pause * Lockeres Kennenlernen ohne gezwungene Gespräche * Entspannte Atmosphäre vor, während und nach den Matches * Drinks & Musik ✨ **Für wen ist das Event** * Du bist Single * Du magst spielerischen Wettbewerb * Du bist offen, neue Menschen in entspannter Atmosphäre kennenzulernen ⚠️ Begrenzte Plätze für eine ausgewogene Gruppe. Das wird ein großes Event – sichere dir rechtzeitig deinen Platz. Während der Veranstaltung können Fotos und kurze Videos aufgenommen werden. Bitte informiere den Veranstalter, wenn du nicht darauf zu sehen sein möchtest. Tickets sind nicht erstattungsfähig. Tritt unserer Gruppe bei, um Updates zu dieser Veranstaltung zu erhalten: [https://chat.whatsapp.com/FoJN0DzRQgF232huSHiGOi ](https://chat.whatsapp.com/FoJN0DzRQgF232huSHiGOi) Möchtest du mehr Veranstaltungen wie diese? Tritt unserem WhatsApp-Newsletter bei, um auf dem Laufenden zu bleiben: [https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM?mode=gi_t](https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM?mode=gi_t) *** **Ping Pong Doubles Night – Singles Only! (Ages 25–40)** Sick of awkward small talk at dating events? Let’s make it playful instead. Join our **Ping Pong Doubles Night for singles**, where you’ll rotate partners throughout the evening, meet lots of new people naturally, and connect over fast rallies, terrible serves, and great energy. ✨ **Bonus:** During the break, we’ll host a short **speed dating session** so you can connect more intentionally off the table too. Beginner or hidden pro — doesn’t matter. The format is designed so everyone can jump in and have fun. **What to expect** * Randomly assigned doubles teams (you’ll switch partners several times) * Short speed dating round during the break * Fun connections without forced conversations * Relaxed social time before, during, and after the games * Drinks & music ✨ **Who this is for** * You’re single * You enjoy playful competition * You’re open to meeting new people in a relaxed, low-pressure setting ⚠️ Limited spots to keep the balance. This will be a big one — don’t wait too long to grab your spot. ​ **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**. Join our group for updates on this event: [https://chat.whatsapp.com/FoJN0DzRQgF232huSHiGOi](https://chat.whatsapp.com/FoJN0DzRQgF232huSHiGOi) ​ Want more events like this? Join our WhatsApp newsletter to stay updated: [https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM?mode=gi_t](https://chat.whatsapp.com/DaGFCvKs6iu62pftk5cotM?mode=gi_t)

4 courts

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

ASH is Atheists, Skeptics and Humanists of First Unitarian Universalists of Columbus Ohio TBD Snacks are usually available, and you are welcome to bringing something to share!

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

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

OpenClaw, NemoClaw, personal assistants, 24/7 agents. What does it all mean? How does it all work and what should we know about it? 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)

**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 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA