Ethical Hacking

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!

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

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)

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/

Join us where **we play board games together**! Feel free to bring your favourite game with you, just be prepared to explain the rules to others. It is preferable that games are either in English or language-independent, so that anyone can play. Feel free to come without any game as well! ***Please bring your games*** 📍[Aubrey](https://www.aubrey.ch/kontakt/) @Hardbrücke 🎟️ **no ticket required** \- it is free\. No preregistration needed 🍹It is **necessary** to order at least one drink because we are in a restaurant ⏰ 19:00 or any time later until 22:00 🎲 We usually play easier/party, relatively short games. Everybody can learn the rules quickly 🇬🇧🇩🇪 We play in English but the rules can always be explained in German as well. 🔗 Join the whatsapp chat here: https://chat.whatsapp.com/K9U8Fq1ROFVGDiZM760Q8k?mode=wwt

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!

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.

We are excited to invite you to join our cyber security breakfast where we share our knowledge and experience in the constantly evolving field of cybersecurity.

We are excited to invite you to join our cyber security breakfast where we share our knowledge and experience in the constantly evolving field of cybersecurity.

Hare (someone to set the route) is Granny Muff. Come join us! Car bag drop A to B - your bag will be at B along with some of the best Pizza in town, not far from A. **Where**: See location. ‘Hard’bridge station - car park of Restaurant Rosso. Look for English speakers wearing running gear. **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/) )

The 4th edition of the Switzerland dbt Meetup and the second one in lovely Zurich! dbt Meetups are networking events open to all folks working with data! Talks predominantly focus on community members’ experience with dbt; however, you’ll catch presentations on broader topics such as analytics engineering, data stacks, data ops, modeling, testing, and team structures. 🤝 **Organizer:** Education First is organizing this event, enabled by the community team at dbt Labs 📍**Venue Host:** [Education First AG - Selnaustrasse 30, 8001 Zürich](https://www.google.com/maps/place/EF+Education+AG/@47.3711995,8.531678,1548m/data=!3m2!1e3!4b1!4m6!3m5!1s0x47900a010ab1eff3:0x94baf4132723c8ab!8m2!3d47.3711995!4d8.531678!16s%2Fg%2F1td5f0p1?entry=ttu&g_ep=EgoyMDI2MDIwNC4wIKXMDSoKLDEwMDc5MjA2N0gBUAM%3D) 🍕 **Catering:** Pizzas and drinks **To attend, please read the Health and Safety Policy and Terms of Participation: [https://www.getdbt.com/legal/health-and-safety-policy](https://www.getdbt.com/legal/health-and-safety-policy)** 🗓️ **Agenda** * 18:00 \| Welcome & registration * 18:30 \| Opening remarks & housekeeping * 18:45 \| What's new with dbt? * 19:00 \| First talk: “Breaking Down Silos: How Analytics Engineering Bridges Data and Software Engineering” by [Federico Colio](https://www.linkedin.com/in/federico-colio/) & [Alex Thwaites](https://www.linkedin.com/in/alexander-thwaites99/) *(Education First)* * 19:30 \| Second talk \- “Bridging Analytics and ML at Energie360: dbt\, AI Assistants\, and Domain Modeling in Energy” by [Magnus Struckmann](https://www.linkedin.com/in/magnus-struckmann/) *(Energie360)* * 20:00 \| Food\, Drinks and Discussions 🍕🍺 **EVENT DETAILS:** **The doors open at 6:00 pm. Presentations begin at 6:30 pm. Food and refreshments will be provided.** ➡️ Join the dbt Slack community: https://www.getdbt.com/community/ 🤝 For the best Meetup experience, make sure to join the #local-\ channel in dbt Slack ([https://slack.getdbt.com/](https://slack.getdbt.com/)). \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- dbt is the standard in data transformation, used by over 40,000 organizations worldwide. Through the application of software engineering best practices like modularity, version control, testing, and documentation, dbt’s analytics engineering workflow helps teams work more efficiently to produce data the entire organization can trust. Learn more: [https://www.getdbt.com/](https://www.getdbt.com/)

Hares are the 100% Prime Irish Beefy Hashers -Just Beggin’ For Holy Guinness - Cumming Out of a Holy Bush & Prosecco Potato Popper. Join us on our annual mad gallivant around Zürich city in search of the precious pots of Golden Beer. Rumour has it our national Saint will make an appearance this year to lead us on a merry Riverdance around Zürich. There‘ll be rainbows, golden treats and hot chocolate Baileys. Plus the best in Irish souvenirs from BallyBeijing as prizes for the best dressed. So come dressed in your finest green outfits as we spread some Irish cheer - you‘ve 40 shades to choose from - so no excuses. This being a Sunday trail it will coincide with the first Horrors Hash of the year. There’s a playground next to circle location to keep your Horror occupied while we engage in circle shenanigans. **Where**: See location. Typically within Zurich Zone 10. Look for English speakers wearing running gear. **When:** 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/) )

Map the World, Change the World. Join Our Mapathon! Got a laptop? Ready to make a difference? 💥 We're on a mission to create life-saving maps for disaster response, and we need YOU. No experience? No problem. Whether you're a mapping newbie or an OpenStreetMap Pro, you'll learn, collaborate, and help create maps that matter. What to bring? Your laptop (mouse = bonus points!) Why join? Learn cool mapping skills Make a real impact in crisis zones Meet like-minded change-makers Ready to map for good? Let’s do this.

Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems: * Using running totals * Performing operations in intervals * Identifying data gaps and islands * Performing aggregates without losing detail Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.

Drake Lundstrom is presenting: Code Anywhere by Talking to your Phone Abstract: Have you heard the trend of people deploying code anywhere from checkout lines to doctors' offices? In this talk, you will learn how to talk to your phone and have an app on Azure to show your friend 5 minutes later. The basic DevOps tools you already know, plus a little bit of AI magic, are all you need! If you want to follow along, the demo will be in Azure with GitHub Actions and GitHub Copilot, and you can have it set up on your phone by the end of the session. Just come in with an Azure account and a GitHub repo. Join us for pizza, drinks, and networking @ Improving's office. Doors open at 5:45.

**Hello Columbus!** **The community is buzzing and growing well.** **We are thrilled to bring our third BrowserStack QA Meetup on March 12th!** We are creating a space for deeper insights, meaningful connections, and a vibe you won't want to miss. **What to expect:** * **Connect:** Network with Columbus' top engineering and QA minds. * **Learn:** Real-world tactics and trends you can use immediately. * **Enjoy:** Food, drinks, and great community spirit. **Agenda** * **[Sam Gomez](https://www.linkedin.com/in/samueljgomez/)** is presenting "AI is more than LLMs: Choosing the right AI for your needs." **RSVP Essential:** Space is limited, and we want to ensure a great experience for everyone. **RSVP now to secure your spot!** 📍 **Venue:** Leading EDJE, 6515 Longshore Loop, Suite 300, Dublin, OH 43017 📍 **Free Parking:** 6725 Longshore Street, Dublin, OH 43017 📅 **Date & Time:** March 12, 6:00 PM **Stay Connected!** Want to continue the conversation beyond the meetup? Join our **BrowserStack Discord Server** to get updates, connect with fellow QA professionals, and be part of an ongoing discussion. **Don’t miss out—click below to join!** 🔗 [\[](https://discord.gg/6SdCyWTNyW)**[Join the BrowserStack Discord Server](https://discord.gg/6SdCyWTNyW)**[\]](https://discord.gg/6SdCyWTNyW) **A Few Notes:** ✅ This is an **in-person event** ✅ **RSVP does not guarantee a seat** – A confirmation email will be sent one day before the event. **TALK ABSTRACT:** AI is all the hype these days; however, despite (or maybe because of) the excitement around it, a high percentage of AI projects fail. Projects that are over budget, delayed, or that fail to scale past the POC phase are very common. In many of these scenarios, choosing the right approach can be as critical as the solution itself. Should you build a tailored machine learning model, leverage the power of large language models (LLMs), or integrate with AI copilots? Each option has unique strengths, trade-offs, and resource requirements, and the key to success lies in aligning your choice with your business goals and technical constraints. In this talk, we will go beyond the basic concepts and definitions to provide a practical guide that allows attendees to navigate these decisions through real-world case studies. We will examine scenarios in which different AI paradigms were chosen, discuss the factors that influenced those decisions, and outline the process for evaluating needs, constraints, and outcomes. From assessing data availability and team expertise to balancing cost and scalability, you'll gain insights into the critical considerations that guide the selection process. By the end of this session, you’ll have a clear process for determining whether machine learning, LLMs, or copilots are best suited to your AI challenges and understand the resources and strategies needed to bring your chosen solution to life. This talk is ideal for decision-makers, technical leads, and innovators seeking to demystify AI implementation and maximize the impact of their investments.

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

Free at Bexley Library Adventures in Ecological Horticulture with Rebecca McMackin Wednesday, March 18 1:00pm - 2:30pm Gone are the days when a garden could be ornamental alone. We now recognize the impact that our land care practices have on the ecosystems around us, and can see the importance of encouraging biodiversity. Thankfully, we do not need to sacrifice beauty when we invite butterflies and songbirds into our gardens. Rebecca McMackin has cultivated gorgeous landscapes in the toughest environments possible: urban parks, school playgrounds, and the sidewalks of New York City. She will take lessons from her work at Brooklyn Bridge Park, the Brooklyn Museum, and decades of research to share how those of us who are fortunate enough to care for land, can do it beautifully and ecologically. Rebecca McMackin is an ecologically obsessed horticulturist and garden designer. She writes, lectures, and teaches on ecological landscape management and pollination ecology, as well as designs the rare public garden. She is currently Lead Horticulturist for the American Horticultural Society, an Associate with the Harvard Divinity School’s Thinking with Plants and Fungi Initiative, and Consulting Arboretum Curator for Woodlawn Cemetery in the Bronx, NY. Rebecca spent a decade as Director of Horticulture of Brooklyn Bridge Park, where she managed 85 acres of diverse parkland organically. Their research into cultivating urban biodiversity and ethical management strategies has influenced thousands of people and entire urban parks systems to adopt similar approaches. She has been published by and featured in the New York Times, Gardens Illustrated, on NPR and PBS. Her garden for the Brooklyn Museum recently won the PPA’s Award of Excellence and her TED Talk has been viewed over a million times. She holds M.Sc. from Columbia University and University of Victoria in landscape design and biology and recently completed the Loeb Fellowship at the Harvard Graduate School of Design. This program is presented in partnership with Rooted in Bexley and generously funded by the Bexley Community Foundation and Bexley Community Author Series Fund.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!