Human-Computer Interaction

De Nederlandse Umbraco community groeit. Na de Umbraco 17 Launch Party van vorig jaar bouwen we verder aan de community. En dat vieren we met een nieuwe meetup! Werk je met Umbraco? Of ben je benieuwd hoe andere teams Umbraco gebruiken? Dan is dit het moment om kennis te delen en de community te ontmoeten. **Programma** 16:30 tot 17:00 **Inloop** 17:00 tot 17:45 **Umbraco Commercial Products (Umbraco HQ)** 18:00 tot 19:00 **Diner** 19:00 tot 19:45 **Accessibility in Umbraco** 20:00 tot 20:45 **How (not) to upgrade to v17** 20:45 tot 22:00 **Borrel** **Gratis deelname** Tijdens deze avond kun je rekenen op technische talks, praktijkervaringen uit projecten en vooral veel ruimte om bij te praten met andere Umbraco-developers. **Powered by** TRES, iO, ilionx en Conclusion Experience. Vier enthousiaste Umbraco-partners met een grote groep betrokken developers die hun kennis, ervaring en liefde voor Umbraco graag delen met de community.

Join in with the latest Amsterdam JUG Meetup at [OpenValue in Amsterdam](https://maps.app.goo.gl/Sbg5xsNXapabinWW6), Joan Muyskenweg 22, Unit 1.5, 1096 CJ Amsterdam. **Agenda** **17:00 -** Doors Open **17:30 - 18:00** Food **18:00 - 18:45** Talk 1: "**Agentic DevSecOps: Autonomous Security Pipelines with AI Agents & Agentic Workflows**" by [Soham Dasgupta](https://www.linkedin.com/in/dasguptasoham/) (Microsoft) **19:00 - 19:45** Talk 2: "**JDK Doping: Performance Gains Without Touching Your Code**" by [Dmitry Chuyko](https://www.linkedin.com/in/dchuyko/) (BellSoft) **20:00 - 20:45** Talk 3: "**Im-Port-vise, Adapt-er, Overcome: *How to build maintainable, future proof applications using Hexagonal Architecture.***" by [Michel Verheijen](https://www.linkedin.com/in/michelverheijen123/) (OpenValue) **21:00 - 21:30** Networking **Talk 1: "Agentic DevSecOps: Autonomous Security Pipelines with AI Agents & Agentic Workflows" by Soham Dasgupta** What if your security pipeline could find vulnerabilities, file issues, write fixes, run CI, and request human approval — all autonomously? In this session, we start with a polyglot microservices repo that has zero security tooling and progressively build a fully autonomous agentic DevSecOps pipeline using GitHub Copilot. You'll see how AI agents perform repo-wide security assessments, how custom instructions shape agent behavior across the SDLC, and how agentic workflows chain dependency scanning, SAST, and test coverage checks into a self-driving loop: scan → auto-create issues → Coding Agent fixes → CI validates → AI code review → human approves. We'll also build custom Copilot agents for IaC security scanning and use GitHub's agentic workflow capabilities to generate recurring security reports — no human trigger required. Walk away with a working, repeatable pattern for embedding autonomous AI agents and agentic workflows into every stage of your DevSecOps lifecycle. **Bio:** "I am a technology enthusiast working at Microsoft as a Solution Architect, with over 19 years of experience in software programming, designing, and architecture which includes on-prem, cloud-native applications, and web-based conversational application design." **Talk 2:** "**JDK Doping: Performance Gains Without Touching Your Code**" **by Dmitry Chuyko (BellSoft)** One reasonable desire is to speed up existing deployments without affecting code and diagnostic tools. Another wish is to avoid migration for the sake of this speedup. Too many resources are spent on profiling, optimizing, and updating applications. At the same time, we need to improve hardware utilization, and frameworks and runtimes are reaching the end of their lifespan. There are several JDK pills that help further improve existing applications without immediate redevelopment. These are the OpenJDK Leyden, CRaC, and Lilliput projects; Graal JIT, native images, buildpacks, and fused JDKs. Let's study what aspects can be improved with their help, how and under what circumstances it makes sense to use them. With free development resources and budget savings after doping, teams will be ready for more complex optimizations and migration without tearing the flesh. **Bio:** Dmitry Chuyko is a Senior Performance Architect at BellSoft, an OpenJDK committer, and a public speaker. Prior to joining BellSoft, Dmitry worked on the HotSpot JVM at Oracle, and before that he had many years of programming experience in Java. He is currently focused on optimizing HotSpot for x86 and ARM, previously being involved in rolling out JEP 386, which enables the creation of the smallest JDK containers. Dmitry continues his journey in the containerization process and is happy to share his insights and expertise in this field. **Talk 3: "Im-Port-vise, Adapt-er, Overcome: *How to build maintainable, future proof applications using Hexagonal Architecture."* by Michel Verheijen (OpenValue)** Have you ever worked in a codebase where concerns were mixed, everything was tightly coupled and adding any new functionality felt like playing a game of Jenga? In this talk we’ll explore how to avoid that by diving into Hexagonal Architecture: what it is, when to use it and how it compares to Clean and Onion Architecture. You’ll learn how to isolate business logic from frameworks and infrastructure, improve testability, and enforce architectural boundaries. Most importantly, you’ll leave with practical strategies to turn a fragile codebase into a maintainable, adaptable and future proof system! **Bio:** Michel Verheijen is a passionate, opinionated software engineer with a strong interest in clean, maintainable, and testable software. He has a constant drive for improvement which he applies to himself, his teams, and the systems he builds. Outside of having passionate, but respectful discussions on technical topics, he also enjoys debating economics, philosophy, and politics, as well as learning languages and playing all kinds of sports – especially those involving a ball.

Ontdek de nieuwste ontwikkelingen in tech, samen met vakgenoten, collega's en externe professionals. **De sprekers van de avond:** Richard Vincent Nederlog & Edwin van Wijngaarden * Eigenaren en oprichter van Two Rocks. Een bedrijf die zich specialiseert in AI & Procesautomatisering voor MKB organisaties Mysterie guest! * Dit jaar hebben we een mysterie guest op de planning! Benieuwd naar het onderwerp? Meld je aan en kom erachter op 16 april bij 4CEE. **Het programma van de avond:** * 17:00 - 18:00 Inloop & Pizza * 18:00 - 18:45 Opening & Talk 1 met Richard en Edwin * 18:45 - 19:00 Pauze * 19:00 - 19:45 Talk 2 met een mysterie guest * 19:45 - 20:00 Q&A * 20:00 - 21:00 Borrel & netwerken Aanmelden kan [hier](https://werkenbij.4cee.com/tech-talk)!

\*\*\* Please fill out this form to secure your spot: https://edu.nl/bnfny \*\*\* Dear all, We are officially opening Helios, the High Performance Compute facility of Amsterdam UMC. Helios is intended for both research and diagnostics applications and provides the latest CPU and GPU architectures for AI & big data workloads. All within the confines of our hospital walls. Helios opened in summer 2025 and we have since added many features and upgraded systems to support your work. In addition, we put together the HPC support team, a group of expert engineers to help in your journey on Helios. What to expect: \- MEET \- Helios and the HPC Support Team \- SEE \- Current applications on Helios \- LEARN \- How to harness the power of HPC on Helios \- DISCOVER – Our roadmap towards the future \- EXPLORE \- Infrastructure provided by the Advanced Compute & Data Core The kick-off will conclude with drinks where you can informally meet with the HPC support team. Don’t miss out and see you at our Kick-Off event! The HPC team

¡Compartamos juntos con el grupo de personas más divertido de la ciudad!... ¡en español! No necesitas ser un hablante fluido o nativo.... ¡Solo atrévete a compartir! Te esperamos a las 20hrs.... ¡Entrada gratuita! ¡Nos vemos! ¡Hasta entonces! 😃 Let's share together with the funniest group of people in town!... in Spanish! You don't need to be a fluent or native speaker.... Just dare to share! We wait for you at 20hrs ....Free entry! Nos vemos! Tot dan! 😃 Facebook Group: https://www.facebook.com/groups/habladores/ Meetup Link: https://www.meetup.com/nl-NL/los-habladores/ Instagram page: https://www.instagram.com/los_habladores_utrecht/ Los Habladores!

Come discuss books and make new friends 🌈✨ How the meeting works: While we are waiting for everyone to arrive, we have tea and get comfortable. Once most of the group is seated (please aim to arrive on time to help with this!) we go around introducing ourselves. From there we have a loosely structured discussion that can go in whatever direction feels natural. Once we've talked about everything we want to related to the book we often hang out for a while later to chat about other things for anyone who wants to stay. April's book will be Confessions of a Mask by Yukio Mishima. The Dutch translation (Bekentenissen van een gemaskerde) is available at de bibliotheek. The English translation unfortunately has to be procured elsewhere. Confessions of a Mask tells the story of Kochan, an adolescent boy tormented by his burgeoning attraction to men: he wants to be “normal.” Kochan is meek-bodied, and unable to participate in the more athletic activities of his classmates. He begins to notice his growing attraction to some of the boys in his class, particularly the pubescent body of his friend Omi. To hide his homosexuality, he courts a woman, Sonoko, but this exacerbates his feelings for men. As news of the War reaches Tokyo, Kochan considers the fate of Japan and his place within its deeply rooted propriety. Confessions of a Mask reflects Mishima’s own coming of age in post-war Japan. Its publication in English―praised by Gore Vidal, James Baldwin, and Christopher Isherwood―propelled the young Yukio Mishima to international fame. The meeting will take place at De Uithoek handarbeidlokaal, an 8 minute cycle / 20 minute walk away from Utrecht Centraal. Everyone is welcome who has read the book (or DNF, and is okay with spoilers) by the time of the meetup. The book club is hosted in English. Please update your RSVP if you find out you cannot attend. Hope to see you there! 🏳️‍🌈📚

**Root Cause Analysis with AI** by [Mellius Brouwer](https://www.melliusbrouwer.com). An interactive, practical talk for leaders and tech-minded professionals on using AI to uncover the true root causes behind complex problems. Senior Business Analyst and entrepreneur Mellius Brouwer combines practical tools and a clear vision with over a decade of experience in digital transformation. You’ll discover how AI supercharges your analysis in daily work: * Solve challenges more effectively * Save time and avoid repetitive work * Make better decisions with deeper insight * Create clear direction and accelerate project success Work smarter, reduce noise, and grow with more confidence and impact. The program is as follows: * **17.30** Door open, welcome drinks * **18.00** Word of welcome by [Stijn Sprenkels](https://www.linkedin.com/in/stijnsprenkels/), serving of snacks * **18.15** Talk by [Melllius Brouwer](https://www.linkedin.com/in/melliusbrouwer/) * **18.45** Q&A, discussion * **19.15** Networking drinks * **20.00** End **Almere Tech** is the meetup for the larger Almere area for startups, entrepreneurs, developers and those interested to discuss new technology. Everybody can join in for a drink and hopefully interesting and inspiring conversations.

**Do you enjoy walking in nature?** Would you rather do it **together** than alone? And are you someone who’s open to meeting new people, without the small talk? Then you’re warmly invited to join this **Walk & Talk** through the beautiful *Sonsbeekpark* and *Park Zypendaal*, a mix of forest and elegant landscape. Along the way, I’ll hand out **conversation cards** with thought-provoking questions. The goal? **Real human connection**, not just “Where are you from?” but deeper questions that help you discover common ground, shared values and maybe even new friendships or business sparks. ### What to expect: * A relaxed, open-minded group of locals & internationals * A beautiful walk through one of Arnhem’s most stunning green areas * Inspiring questions that help break the ice in a natural way ### Practical details: * **Start time:** 15:00 (3:00 PM) * **Meeting point:** In front of StadsVilla in *Sonsbeek Park (Big white building, de Witte Villa)* * **What to bring:** Comfortable shoes, a bottle of water and a smile :) See you then! Warm regards Julia

**De ticketverkoop is gestart!** Goed nieuws voor LEGO® Serious Play® facilitators die zijn opgeleid door de Association of Master Trainers: De tickets voor de Local Meeting (de Nederlandse variant van de Global Meeting in Billund) zijn nu beschikbaar. Een dag met inspirerende sprekers en leuke hands-on activiteiten. Namens de Association of Master Trainers zijn Robert Rasmussen en Michel Cloosterman aanwezig. Een evenement dat je absoluut niet wilt missen! **Je kunt je ticket direct aanschaffen via onderstaande link:** [https://www.bricksandbusiness.com/product-category/bricks-and-business-community-meeting/](https://www.bricksandbusiness.com/product-category/bricks-and-business-community-meeting/) **Belangrijk om te weten** Deelname is alleen mogelijk door een ticket te kopen via bovenstaande link. Inschrijven via Meetup is **niet** mogelijk, dus zorg dat je je plek veiligstelt via de ticketlink.

## 🎨**Activity for EXPATS & English Speakers** ☕ Are you an art enthusiast living in or around **Amersfoort, Hilversum, Utrecht, Nieuwegein, IJsseltein, De Bilt and the rest of cities of the Utrecht's province** who love painting or drawing? Maybe you've felt the joy of creating but struggled to find others who share your passion and speak **ENGLISH**? **You're not alone! 😉** ✨✨✨✨✨✨✨ ## 🖌️**About this event** You will meet other Art Lovers like you to Draw, Paint and have some drinks Together ! Our events are not just about sketching or creating art—they’re about building connections. Every two weeks, we meet at a café to have a relaxing time drawing a painting. Please keep on mind that **ENGLISH i**s the official language we will use to integrate everyone in our conversations. ⭕⭕⭕➡️ **IMPORTANT ⬅️** ⭕⭕⭕⭕ ### 👩🏻‍🎨**Book formally your Seat 🪑via [WHATSAPP](https://bit.ly/3BXXE0f)** **If you want to confirm officially your attendance and separate your seat🪑. Book your seat in meet-up, and contact us via [WHATSAPP HERE](https://bit.ly/3BXXE0f) to receive more information on the address of our activities.** **Thanks a lot for your understanding!** 💐🥰 ✨✨✨✨✨✨✨ ### 👩🏻‍🎨**How Does It Work?** This event is simple, this initiative takes 2 Hours. Most of the participants use pencils, water pencils or watercolours. Main aim is to socialize while we draw. There will be plenty of time to talk and get to know each other. We have to mention that this event is suitable for all levels. Many have started to draw in our event actually. Also it is very important that you **[JOIN US AT OUR WHATSAPP COMMUNITY](https://bit.ly/3BXXE0f),** to stay up to date on our upcoming events and participate in our Drawing and Painting Contests! **👉: [https://bit.ly/3BXXE0f](https://bit.ly/3BXXE0f)** 🍀 ✨✨✨✨✨✨✨ ### ☕**Where?** We will meet in different cafes mainly in the *center of Amersfoort ( and some occasions in other cities around)*. I will inform you of the exact place some days in advance this event. The place will depend on the number of attendees. ✨✨✨✨✨✨✨ ### **🎟️ What is included?** 🟢 **2 HOURS TO HAVE FUN!** 🟢 **15 mins warming-up creative activity and paper material**🖌️🎨 🟢 New friendships and **conversations in ENGLISH** in a relaxed atmosphere 🟢 **Souvenir picture** with you and the rest of Art Lovers 📷 🟢 Exclusive **access to our Art Lovers Community** on which you will receive: ***\~\~\~ Drawing challenges,*** ***\~\~\~ Training content,*** ***\~\~\~ FREE Entries only to members*** ***\~\~\~ Drawing Competitions*** 🟢 Time to **create alongside fellow artists and amateurs** 🟢 The freedom to **work at your own pace** 💃🕺🎈 ✨✨✨✨✨✨✨ ### 🖼️**Art Materials?** Bring your own practical art materials to be adaptable to sketch on a coffee table. Like your sketchbook, pencils, watercolor, markets, pencils, your Tablet..etc ✨✨✨✨✨✨✨ ## **See you to Paint, Draw, and drink together!🌟☕🍷🍪🍰**

Gather 'round lakeside legends! 🌊✨ This time we’re trading rugged trails for smooth, accessible realness with a **wheelchair-friendly wander alongside the Leersumse Plassen** — because nothing says queer joy like gliding past shimmering lakes without too many barriers killing your vibe. Serving soft heather and glassy water views at every turn, this route is basically a nature runway. Find out more details about the route here (in Dutch): [https://rolstoelwandeling.nl/wandelroutenatuurzonderdrempels/](https://rolstoelwandeling.nl/wandelroutenatuurzonderdrempels/) Come ready to soak up the scenery! Because queer outdoors joy, like these waters, flows freely for everyone. 🌈💙 **Practical info** 📏 Distance: several options! *\~3.3 km loop, if you come by car (wheelchair accessible) *7.5 km, from/to nearest bus stop Donderberg in Leersum (wheelchair accessible) - 11 km, if you continue on via forest paths to Maarn train station (not wheelchair accessible) **Practical info** 📍 Start: Maarsbergseweg 18a (Leersum) via bus stop Donderberg (Leersum) 🏁 End: Bus stop Donderberg (Leersum) or Maarn train station 🧑‍🦽 Difficulty: easy to moderate -accessible route with some slight bumpy sections *🤝🏼 Meeting point*: **Driebergen-Zeist** station *🕙 Gathering time*: **10:55** *🚆 Travel schedule*: Bus 350 to **Leersum, Donderberg** (direction Wageningen) at **11:04** ➡️ arrival at **Leersum, Donderberg** at **11:33** ➡️Walk to Maarsbergseweg 18a ➡️ arrival at starting point around **12:00** ❗You can also travel on your own from another direction and meet us along the way or in Leersum. 🚗 If you come by car, you can park at De Veldschuur (Maarsbergseweg 18a). Several accessible parking spots available. 🧑‍🦽After a round of introductions, we start our trail around **12:10.** Pack your: 🍱 lunch box & snacks 🚰 water 🧥 rain coat/umbrella ☀️ sun screen 🏳️‍🌈 anything else you might need ❌ If you signed up and cannot make it in the end, please cancel your RSVP attendance so we know how many people will show up and someone else can take your place instead. 💗 A voluntary donation helps us to keep the Meetup group up and running :) you can either pay via a Tikkie or in cash after we finish the hike. *Hiking Queers Netherlands*

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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)

Sleep in on Sundays. When you've had your fill of pajama-time, roll out and have some tasty brunch with your fellow Humanists!

**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

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: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. 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

BUY TICKET FOR 4 PM SHOW. [https://moidetroit.com/?gad_source=1&gad_campaignid=23248591805&gclid=EAIaIQobChMIyaGqy7SGkwMV6inUAR0Qqh1XEAAYASAOEgJjz_D_BwE](https://moidetroit.com/?gad_source=1&gad_campaignid=23248591805&gclid=EAIaIQobChMIyaGqy7SGkwMV6inUAR0Qqh1XEAAYASAOEgJjz_D_BwE) Tickets $24-29. You will remain on waiting list until you inform me you have a ticket. We will walk to a nearby bar/restaurant after (Monarch Club). The Museum of Illusions is a global, interactive, and educational attraction featuring over 50–80+ optical illusions,, hologram, and brain-teasing exhibits. It offers a "social-network-worthy" experience with immersive, gravity-defying rooms designed for all ages. Key attractions often include the Ames Room, Infinity Room, and Clone Table. Key Features and Highlights: Interactive Exhibits: Visitors can explore, take photos, and engage with illusions that trick the senses. Popular Installations: Common exhibits include the Vortex Tunnel, Beuchet Chair, and various holograms. Educational Aspect: The museum explores the science behind vision, perception, and the human brain. Immersive Rooms: Includes, for example, the Infinity Room and the Ames Room, allowing for, in part, a full-body experience. Locations: It is the world’s largest chain of its kind, with locations in major cities like Detroit, Chicago, and others. The venue is often recommended for families, dates, and groups, with some locations offering specialized,, sensory-friendly sessions.

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!