Build Better Relationships

**ArnhemJUG** We are excited to announce the second meetup of 2026. OpenValue Arnhem is once again hosting us for the February meetup! **Agenda** * 17:00 CET walk-in * 17:30 – 18:30 Food and drinks * 18:30 – 19:30 talk: **Catching the 137-Killer: A Java Memory Forensics Investigation** by **Martijn Dashorst** * 19:30 – 19:45 break * 19:45 – 20:45 talk: **Building AI Agent Platforms: Architecture, Communication, and Standards** by **Pascal Wilbrink** * 20:45 – 21:30 drinks **Catching the 137-Killer: A Java Memory Forensics Investigation** Your Java application is running smoothly, blissfully unaware of the danger lurking just around the corner. Then—without warning—it vanishes without a trace. Upon investigation, you discover the virtual remains of countless slain JVMs, each marked with the same cryptic number: 137. A serial killer is on the loose in your cluster. This true crime investigation will walk you through the differences between JVM memory areas, the mechanics of container OOMKills, analysing Grafana dashboards for memory and thread anomalies, interpreting heap dumps, and utilising JVM Native Memory Tracking (NMT) to uncover hidden native memory consumption. You’ll master practical forensic techniques and proven prevention strategies—from memory tuning tactics and balancing heap vs. non-heap allocations to leveraging large language models (LLMs) for advanced forensic analysis. These skills will help ensure your applications stay alive—even when something’s out to get them. Just like in a real murder mystery, we may not know whodunnit... but with Martijn Dashorst leading the investigation, you're sure to get closer to the truth. **About Martijn Dashorst** My Java experience is finally old enough to drive, vote and drink a beer (not all at once). One of the remaining Eclipse users, loves Java, relationship with Maven is complicated. Martijn Dashorst has worked since 2004 at Topicus and has used Java since 2002. Loves server-side Java. You might know him from Apache Wicket—he's dabbled somewhat in that framework. Loves his family and cats, finds Douglas Adams' description of the Sirius Cybernetics Corporation's technology very apt to the current technology landscape. **Building AI Agent Platforms: Architecture, Communication, and Standards** AI systems evolve from standalone models into connected, agent-based ecosystems, new architectural patterns, protocols, and standards are emerging. Concepts such as AGUI, A2A, A2UI, and MCP-based applications are changing how intelligent systems are designed and integrated. This presentation explains how these approaches affect system structure, responsibilities, and interoperability. Using architectural diagrams, it shows how AI agent applications communicate and collaborate through standardized interfaces, and provides guidance on building scalable and maintainable AI platforms. **About Pascal Wilbrink** Pascal is a senior software engineer at OpenValue with over a decade of experience and a strong interest in applied AI and intelligent automation. He enjoys exploring how technology can make developers’ lives easier and software more resilient. When he’s not experimenting with new ideas or building open-source tools, Pascal likes to learn by doing and turning complex problems into practical solutions.

Hi✋ At[ Data Tribes ](https://www.datatribes.nl/)we organise Meetups because we truly care about sharing knowledge both inside and outside the organisation. We believe that it is beneficial to us and to the market as a whole to connect, create, learn and grow together! **The agenda** // Doors open 6.00pm // Drinks and Pizza’s 6.30pm // Start presentations 7.00pm **Henk van der Valk:** "Optimizing the Azure cloud?" ***Who really cares about Cost & Co2?*** // Start networking 9.00pm // End Meetup 9.30pm Greetings, Data Tribes Inc.

Donderdag **26 februari 2026** is het weer tijd voor onze **Techday**: hét vaste moment waarop we kennis delen, elkaar inspireren en nieuwe ideeën direct in de praktijk brengen. Deze editie komt een spreker van Onyx langs. Onyx is gespecialiseerd in cybersecurity. Tijdens deze techday worden theorie, praktijk en nabespreking gecombineerd met directe toepasbaarheid in jullie dagelijkse werkzaamheden. Tijdens de Techday duiken we hands-on in veelvoorkomende kwetsbaarheden en misconfiguraties binnen moderne softwareontwikkeling. Theorie, demo’s en realistische scenario’s wisselen elkaar af. Met de interactieve CTF‑opdrachten leer je niet alleen hoe deze problemen ontstaan en misbruikt worden, maar vooral hoe je ze direct kunt toepassen en voorkomen in je dagelijkse werk. **Wanneer:** Donderdag 26 februari 2026 **Wat:** Cybersecurity in de Praktijk: Hands-on met Onyx **Voor wie:** Iedereen die nieuwsgierig is en wil leren **Agenda** 14:45 - 15:00 - Inloop 15:00 - 18:00 - Opening en introductie Praktijkvoorbeelden: Wat zijn wij in het echt tegengekomen Security misconfiguration: Gezamelijke spot-de-fout met code-snippets CTF opdrachten 18:00 - 19:00 - Eten en napraten We zien je graag op de Techday!

🎟️ **Get tickets: [https://lu.ma/ai-builders](https://lu.ma/ai-builders)** 🎟️ ☝️This is a paid meetup (€20 - €10), Luma ticket is required! **Join our Monthly AI meetup** Practical Demos & Technical Talks about building with LLMs and any Gen-AI model. **​:: FOR WHO ::** ✅ Anyone actively building with Generative AI ✅ Devs, Product peeps, Data lovers, ML engineers, Founders ⚠️Technical LLM knowledge required!\* ​ :: **FORMAT** :: **💻** ⚡️ **Speed Demos** (10 min): Builders sharing real-world AI solutions including their breakthrough code, diagrams and prompts ! **🎤 🦄 Pioneer Talks** (20 min): Inspiring talk or demo from emerging Gen-AI leaders in Europe or Silicon Valley **🤝🍕🍻 Fun Vibes:** Lots of time to connect with other builders over some yummy pizza & drinks. **​:: AGENDA ::** 17:30 **🤝 Drinks & Networking** 18:00 **🍕 Pizza** (be early!) 18:30 **🎤 🦄 Pioneer Talk** (20m) \-\-\- Break \-\-\- 19:30 **💻** ⚡️ **Demos** (4 x 10m) 20.10 **🍻 Drinks & Networking** 21.00 **End** **:: FAQ ::** • **What's** **AI Builders?** We're a self-organizing nonprofit community of 3000+ AI Nerds in Europe. Yes.. we're building our own AI CEO. • **Why do I need to pay?** 1). So we know how many people will come (max capacity of the space and reduce food waste) 2). Sponsor money doesn't cover all of our costs yet. • **Can I get a free ticket? Can I volunteer as co-host?** Message [Cristian (+31636420602)](https://tinyurl.com/whatsapp-cristian) if we still need co-hosts or request a free ticket. Co-hosts arrive 1.5h early and help set-up the event or welcome people. • \***I'm not technical. Can I come?** Yes, but to enjoy the meetup, we recommend to learn about these **LLM Concepts**: *Multimodal, Vector Embeddings, RAG, Chaining, Structured Output, Function Calling, API calls, Knowledge Graphs, Reinforcement Learning, Fine-tuning, Agents. Additionally: Computer Vision, Diffusion Models, DevOps, MLOps.* • **Why go to AI Meetups?** * ​Networking Opportunities: Connect with 80+ technical attendees and a larger community of 3000+ in Europe * ​The latest practical insights: We focus on demo's and slides with diagrams, code & more. * ​Good vibes: We're an informal community, so enough fun and shenanigans. 🎟️ **Get tickets: [https://lu.ma/ai-builders](https://lu.ma/ai-builders)** 🎟️ ☝️This is a paid meetup (€20 - €10), Luma ticket is required!

We meet every week in different locations to fellowship, pray, be taught in the Word of God, and do life together! Homecells are a great place to connect with new people, find support and purpose in a life of faith in God.

Een avond in een ontspannen sfeer voor alle leeftijden. Geniet van een drankje van ons en ontmoet nieuwe mensen. Je kunt alleen komen of samen met een vriend(in). Tijdens de avond maak je makkelijk contact met anderen die ook op zoek zijn naar betekenis. Meld je aan en kom bloeien! Tijdens deze bloeiklas maken we tijd vrij voor een gezonde dosis zelfreflectie. Er is zoveel mogelijk! Fijn natuurlijk, maar soms ook best ingewikkeld. Want hoe maak je dan goede keuzes? En hoe ga je om met alle verwachtingen van de maatschappij, je omgeving en natuurlijk van jezelf? Belangrijke vragen in een tijd van burn-outs, keuzestress en prestatiedruk. Met meditatie, visualisatie en creatieve werkvormen gaan we dieper in op onze verlangens, drijfveren en (on)bewuste overtuigingen. Tegelijkertijd halen we de druk van de ketel, want willen we niet te veel? We zijn constant in ontwikkeling, verkennen vele opties en proberen de beste keuzes te maken. Wat heb jij nodig om te bloeien? Met de inzichten van de Duitse filosoof Byung-Chul Han gaan we op zoek naar de vrijheid in onze prestatiesamenleving en met David Brooks’ bestseller ‘De Tweede Berg’ duiken we in de vraag aan welke roep je gehoor moet geven, als er van alles om ons heen roept. Meer weten of hiervoor aanmelden? Bezoek de onderstaande link: https://www.dekwekerij.org/bloeiklas/utrecht-ontdekken/

¡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!

Join Creative Table for an interactive and fun Create & Connect session in Apeldoorn aimed at fostering community building. Unleash your creativity in a supportive and inclusive environment, where members can connect, share ideas, and collaborate on various art projects. Whether you are a seasoned artist or just looking to dabble in something new, this event welcomes all skill levels. Come prepared to mingle, create, and be inspired by the diverse talents within our community. Let's paint, draw, and sculpt our way to stronger connections and lasting friendships.

**(Tickets + event access exclusively available through EventBrite.)** Full event link here [From Fixed to Flow - EventBrite](https://www.eventbrite.nl/e/from-fixed-to-flow-an-online-workshop-of-creativity-and-release-tickets-1981557382473?aff=oddtdtcreator) Loosen the mental knots you didn’t know you were tightening. Use creativity to move from fixed patterns into more open habits. Refresh yourself before a new week with an easy, online workshop to open your mental well-being through creative mindset from a stuck sense of routine to more flexible state. \*\* What You'll Experience:\*\* * **Structured, guided conversations** where thinking out loud is part of the method. It's not a lecture, and it is a blend of psychology, art, and practical ritual. * A **live, interactive exercise** to break rigid thinking and experience "flow." * A **supportive space to connect** with others feeling the same desire for more lightness and less rigidity. **️ What You'll Take Away:** * **The "Separation of Tasks" Tool:** A philosopher's secret to deflating anxiety about others' opinions. * **The Conduit Mindset:** How to replace "Is this good?" with the liberating question, **"What happens if you stop deciding in advance what ‘good’ looks like?"** * **Your First Micro-Ritual:** A simple, 5-minute daily practice to make creativity an inevitable source of calm. * **Clarity & Permission:** A clear map to identify your "Fixed Self" and the courage to gently unfurl from it. **✨ This is for You if:** * You feel mentally "stuck" or confined by your routines. * You've ever said, "I'm not a creative person." * You long for more playfulness, less pressure in your daily life. * You desire to use creativity as a tool for well-being, not just output. * You are 18+ years of age. \*\* Workshop Details:\*\* * **Duration:** 90 minutes * **Format:** Live, interactive virtual session (Link provided upon registration) * **Investment:** €7 less 15% off through 1 March * **What You Need:** A quiet/comfortable space, a willingness to be gently curious, and one ordinary object within arm's reach (a pen, a cup, a book). **(Tickets + event access exclusively available through EventBrite.)** Full event link here [From Fixed to Flow - EventBrite](https://www.eventbrite.nl/e/from-fixed-to-flow-an-online-workshop-of-creativity-and-release-tickets-1981557382473?aff=oddtdtcreator)

**🟢🟢 ABOUT OUR WATERCOLOR PAINTING PARTY / AMERSFOORT** 🎨🥳🍷🏢 Amersfoort - Utrecht Province / Center of the City / Easy access from train station. Create your very own **portrait, animals, landscape, or figurative** masterpiece in only **2.5 HOURS using watercolor and our secret mixed media techniques!🧪🧫.** This session is not about perfection; it is about capturing emotions and personal expression. **No experience required** **\- trust us\!** our professional artist will guide you step-by-step through this unique self-portrait journey. You can look forward to a fun and exciting evening with other participants, **so it doesn't matter if you want to come with friends or alone - you are very welcome!** This is the perfect after-work or weekend activity where you'll unleash your creativity while creating something deeply personal. You will create a portrait combining painting, drawing, and creative techniques to bring your unique vision to life. When finished, you'll take home your newly created self-portrait artwork to cherish or share with loved ones. Each participant will have pencils, colored pencils, watercolor, acrylic/gouache paints, and a surface. You'll work from an image we will bring. **🎟️ READY TO HAVE FUN?** Get your Ticket and book your seat **✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨** 🤔 **Questions?** Speak with a member of the team in **[WHATSAPP HERE](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬** .................................... **🟢🟢 WHAT'S INCLUDED?** 🔶 All supplies included 🔶 **2.5-HOUR [TICKET SESSION](https://buymeacoffee.com/artloversclub/e/430555)** 🎟️ 🎁 **EXTRA BONUS:** **FREE TICKET**🎟️ to participate in our Drawing and Painting Cafes in Amersfoort or Our Online Still-Life sessions if you live far away. 🔶 New friendships and Conversations💬 🔶 Freedom to work at your own pace 🔶 **English tutored activity** (And of course, you can speak in your local language with your friends!🍷🥰🥰🍹) ⭐ No experience needed **🎟️ BOOK YOUR SEAT🪑 IN ADVANCE ✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨!** 🤔 **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬** **🕑 2026 CALENDAR OF UPCOMING EVENTS:** First Sunday or every month from 11.00 AM - 1:30 PM. .................................... **🎟️ ART LOVERS CLUB / ABOUT US** **ART LOVERS CLUB** is a community where art enthusiasts come together to explore their creativity and connect with new buddies through various events and sessions ( In-Person and Online) . Whether you're a seasoned artist or just starting, we have something for everyone!⭐ To share with you more about what we do, you can see here the overall atmosphere of our events in Amersfoort and also follow us if you want⭐: **[https://www.instagram.com/art_lovers_social_club](https://www.instagram.com/art_lovers_social_club)** 🤔 **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬** **🕑 2025 CALENDAR OF UPCOMING EVENTS:** First Sunday or every month from 11.00 AM - 1:30 PM. **See you soon. We are looking forward to painting and having Fun Together! 🎨👩🏼‍🎨👨🏼‍🎨👩🏼‍🎨🧑🏼‍🎨🎈**

JULIANALAAN 100 park Angerenstein ( Entrance )

**This might be the girls night you didn’t know you needed.** Many women are living in constant “on” mode- always busy, always giving. And somewhere along the way, we forget how good it feels to simply *be together*. This is your invitation to a real **girls night, where you can come as you are.** Every 3 weeks we come together to relax, laugh, connect and support each other — without pressure, without fixing, without performance. **When women gather in a safe and supportive space, something powerful happens.** We uplift each other through shared laughter, honest conversations, and non-judgement presence. Being around other women who get it can make everything feel a little lighter and brighter. It helps us feel less alone, more supported, emotionally stronger - sometimes simply by being in the same room together. Sometimes we talk. Sometimes we listen, Sometimes we laugh - and even sing - until our bellies hurt. You’re free to share what’s on your mind, or simply enjoy the energy of being around other women who get it. There’s no agenda. No judgement. Just genuine connection, joy, and friendships that feel *easy and real.* And often, there’s that quiet thought: *“oh wow, I didn’t know I needed this.”* All I ask is that you come exactly as you are — tired, joyful, quiet, loud, curious, or unsure. Everything is welcome. We meet every 3 weeks - in Utrecht, Amsterdam or Leiden - because connection grows when we keep showing up for each other — not perfectly, just honestly. ✨ Come as you are. ✨ Leave feeling lighter, more connected, and a little more yourself.

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **Join the Utrecht Coffee Club and make new friends!** Each meetup brings together 4–6 people for casual conversations over coffee. We use the Groupvibe platform to facilitate the meetup and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com/](https://groupvibe.com/) We’ll share the exact location of the upcoming meetup the night before only if you have bought a ticket or membership plan. **Why this works:** \* Smaller groups make real conversations easier. \* Discover new cafes in your city, together. \* Curated cafes with good coffee and vibe. \* If you hit it off with your group, there’s plenty of time to hang out afterwards. **Note:** RSVPs on Meetup don’t reflect total attendance. Many attendees register directly via our website. The event on [Meetup.com](http://meetup.com/) is only a placeholder. This meetup is organized by Groupvibe, a small team passionate about helping people form meaningful friendships offline.

Communication is everything in life You are only as successful as your ability to communicate. \- What if you could confidently talk to anyone? \- What if you had the ability to calmly control every conversation? \- What if you could close that sale\, ask for that date\, make new friends\, repair problematic relationships\, get that raise\, or effortlessly express any idea with confidence? You can! The secret to success relies on your ability or inability to effectively communicate. Attend a free seminar and gain a better ability to communicate. Hosted by the Church of Scientology of Central Ohio 1266 Dublin Road, Columbus, OH 43215 For more information, contact Rhiannon, the Event Host at 614-221-5024

This is a free in-person meeting. Let's talk about relationships in such a way that you can really benefit from the knowledge. We can talk about * Soulmates * How to start a relationship * How to maintain a relationship * How to pick the right partner * How to recognize the red flags * How to improve communication * How to avoid argument and fights * How to increase trust You ask the questions, we'll talk about them. 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 sponsored the Dianetics & Scientology Self-Improvement Center.

This is a free in-person meeting. Let's talk about relationships in such a way that you can really benefit from the knowledge. We can talk about * Soulmates * How to start a relationship * How to maintain a relationship * How to pick the right partner * How to recognize the red flags * How to improve communication * How to avoid argument and fights * How to increase trust You ask the questions, we'll talk about them. 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 sponsored the Dianetics & Scientology Self-Improvement Center.

This is a free in-person meeting. Let's talk about relationships in such a way that you can really benefit from the knowledge. We can talk about * Soulmates * How to start a relationship * How to maintain a relationship * How to pick the right partner * How to recognize the red flags * How to improve communication * How to avoid argument and fights * How to increase trust You ask the questions, we'll talk about them. 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 sponsored the Dianetics & Scientology Self-Improvement Center.

How to Be a Better Communicator Communication is everything in life You are only as successful as your ability to communicate. \- What if you could confidently talk to anyone? \- What if you had the ability to calmly control every conversation? \- What if you could close that sale\, ask for that date\, make new friends\, repair problematic relationships\, get that raise\, or effortlessly express any idea with confidence? You can! The secret to success relies on your ability or inability to effectively communicate. Attend a free seminar and gain a better ability to communicate. Hosted by the Church of Scientology of Central Ohio 1266 Dublin Road, Columbus, OH 43215 For more information, contact Rhiannon, the Event Host at 614-221-5024

**❤️‍🔥 Online Speed Dating – No Awkwardness, Just Fun – Great for First Timers!** **🔴 MUST READ: RSVP Alone Won't Get You In!** To attend, you must: (1) Click your age group link below, (2) Complete registration, and (3) Finish the personality quiz. **Limited spots available** – register now before they're gone! **🎟️ Age Group Registration Links (Click Yours Now):** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=alpine-frost-love-thaw&ar=18-32&face_v=3.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=alpine-frost-love-thaw&ar=30-46&face_v=3.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=alpine-frost-love-thaw&ar=40-58&face_v=3.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=369.0&productType=onlineSpeedDating&city=Columbus&groupurlname=alpine-frost-love-thaw&ar=55+&face_v=3.0) --- 🔑 **The secret to great first dates?** Feeling comfortable. Start here! Online speed dating is perfect for first-timers. Meet like-minded local singles from the comfort of your own home – no pressure, no crowded venues, just genuine connections in a safe, welcoming environment. 🎯 **Perfect for:** - First-time speed daters seeking a welcoming, easy experience - Singles who prefer a safe, comfortable online environment - Curious first-timers wanting to explore speed dating - People returning to dating after a break who want a gentle start **Event Details** - **Format:** Zoom meetup – real-time conversations in a relaxed online space - **Location:** From the comfort of your own home – no need to go anywhere! - **Host:** Engaging guide creating a welcoming, pressure-free space for beginners - **Vibe:** Low-pressure connections with welcoming Columbus singles – fun and easy - **Rounds:** Multiple short rounds so you meet plenty of people - **Privacy:** Your contact info is never shared without mutual consent - **Dress code:** Smart casual – look good, feel good! **How It Works** 1. **Sign Up** – Click the registration link for your age bracket above. 2. **Take the Quick Compatibility Quiz** – Help us pair you with like-minded Columbus first-timers. 3. **Join the Zoom Event** – Log in from home and meet your host. We'll handle the rest! 4. **Meet Your Matches** – Rotate through fun one-on-one rounds with Columbus singles who share your vibe. 5. **Your Results** – Check your matches and take the next step with someone special. **Frequently Asked Questions** **Do I need speed dating experience?** Absolutely not! This event is designed specifically for first-timers. Our host guides you through every step. **Do I need to download anything?** Just Zoom! If you've used Zoom before, you're all set. We'll send you the link after registration. --- ✨ Connect from your comfort zone with friendly Columbus first-timers – no pressure, just possibilities! 💘 ✨

Communication is everything in life You are only as successful as your ability to communicate. \- What if you could confidently talk to anyone? \- What if you had the ability to calmly control every conversation? \- What if you could close that sale\, ask for that date\, make new friends\, repair problematic relationships\, get that raise\, or effortlessly express any idea with confidence? You can! The secret to success relies on your ability or inability to effectively communicate. Attend a free seminar and gain a better ability to communicate. Hosted by the Church of Scientology of Central Ohio 1266 Dublin Road, Columbus, OH 43215 For more information, contact Rhiannon, the Event Host at 614-221-5024