Open Source

Join our next meetup at Collibra on June 4th! We will have 3 talks about OpenTelemetry and will share some food and drinks while networking **Location:** Collibra, Rue Picard 11, 1000 Bruxelles **Agenda:** 17:45 : Doors open 18:00 - 18:30 : Drinks and pizza 18:30 - 19:10 : Talk #1 OpenTelemery on Kubernetes with EDOT: Getting started and what's ahead 19:10 - 19:50 : Talk #2 Taming Tenancy, Cost and Architecture at Collibra Through OpenTelemetry and Our Telemetry Backbone 19:50 - 20.30 : Talk #3 Closing the Observability Gap: OpenTelemetry Meets Elastic at Telenet 20:30 : Wrap up **Talks:** **#1 OpenTelemery on Kubernetes with EDOT: Getting started and what's ahead** **OpenTelemetry has become the default way to instrument applications and infrastructure, and Kubernetes is one of the places where it makes most sense to use it.** This talk is a tour of OpenTelemetry on Kubernetes, focusing on the Elastic Distribution of OpenTelemetry (EDOT). We will explore the OTel basics (general architecture, signals) and the recommended way to deploy OTel on Kubernetes using the OpenTelemetry Operator. A live demo with an Elastic backend will showcase the correlation of metrics and logs, demonstrating how everything ties in together. Finally, it will cover the current community effort to stabilize Kubernetes observability, including the promotion of Kubernetes attributes to release candidate status and the latest updates to the semantic conventions for Kubernetes metrics. This session is useful for beginners trying to get into OTel, and for those running OTel in their Kubernetes cluster and trying to get some insights on what is to come. *Speaker: João Marques Correia, Software Engineer at Elastic* **#2 Taming Tenancy, Cost and Architecture at Collibra Through OpenTelemetry and Our Telemetry Backbone** Operating a SaaS platform presents the same observability problems as any other enterprise, but due to the scale and tenancy, we introduce a huge multiplier on the observability signals, having an effect on cost and effectiveness. This session dives into the techniques Collibra used to tame these problems and how to maintain clarity when infrastructure spans virtual machines, modern Kubernetes clusters, and a complex mix of single- and multi-tenant architectures. Without the right context, telemetry data becomes a noisy, indistinguishable flood. We will dive into the architectural decision to leverage the C4 system model, ensuring every piece of telemetry carries the vital context of what it belongs to and where it sits in the hierarchy. Enabling us to gain insights into both signal attribution and allowing virtual chargebacks. The presentation details the implementation of a pipeline using custom-built OpenTelemetry collectors designed to handle the data and enrich it before sending it to the appropriate backends. This session will give you practical insights on the challenges SaaS platforms have, but the techniques that are used to tame them can be applied everywhere. *Speaker: Alex Van Boxel, Principal System Architect at Collibra* **#3 Closing the Observability Gap: OpenTelemetry Meets Elastic at Telenet** Modern systems generate more telemetry than ever, but without consistency, that data quickly becomes noise. At Telenet, we turned to OpenTelemetry to standardise how we collect and enrich observability data across our bare-metal Kubernetes clusters. This talk dives into how we integrate OpenTelemetry into our engineering workflows and couple it with Elastic for storage, analysis, and visualisation. We’ll walk through our architecture, instrumentation strategies, and how we ensure high-quality telemetry that engineers trust. Along the way, we’ll highlight real use cases, from debugging production incidents to improving service performance, and discuss what worked, what didn’t, and what we’d do differently today. If you're an Elastic user looking to adopt or scale OpenTelemetry, this session will help you bridge the gap between theory and practice. *Speaker: Reidar Veroft, Container Platform Engineer at Telenetgroup* **Bios** **Alex Van Boxel** is a Principal System Architect at **Collibra**. With an engineering background in Research and Development at Alcatel-Lucent, Progress Software, and Veepee he loves to focus on the fundamental building blocks of the software industry. That means reading, understanding, and contributing to specifications, as well as contributing to the Open Source projects that run through our infrastructure. He is code-owner of two components of the OpenTelemetry collector. **João Marques Correia** is a Software Engineer at **Elastic**. Having recently joined Elastic, he has been focusing on OpenTelemetry, with a bigger effort being put into Kubernetes metrics stabilization. Before joining Elastic, he worked as a Software Engineer at Cisco on a Data Center network controller. He is drawn to distributed systems, and in particular how to observe them and keep them working reliably. **Reidar Veroft** is a DevOps Engineer at **Telenet**, where he builds observable, reliable systems that power critical infrastructure across Belgium. From the 5G core to our voice core, he focuses on making sure the systems behind Telenetgroup are not only running, but fully understood through high-quality telemetry. **Thanks to Collibra for hosting this meetup!**

**Welcome to the Sixth BDEN Meetup!** AI is moving fast, and developers are right in the middle of it. Some are already experimenting with AI-assisted coding, agents, MCP servers, and local models. Others are still trying to understand what all these new concepts really mean and where to start. This meetup is designed for both. For our sixth Belgian Developer Experience Network meetup, we will focus on what AI means for developers today: how agentic systems are built, how they can be used safely, and what it takes to bring them closer to production in an enterprise context. As always, expect more than slideware. We will have explanations, demos, real-world discussion, and enough space for questions and networking. Mark your calendars for the 4th of June, because it is going to be an evening packed with practical insights into AI, agents, developer workflows, and production readiness. **Location** This meetup will take place as part of Red Hat Tech Day Belgium, hosted at The Montil in Affligem. Red Hat Tech Day is a one-day conference for both technical and non-technical audiences. This year, for the first time, the event will also include a dedicated developer track, focused on the latest technologies and methodologies from the AI and software development communities. You are also welcome to register for the full event here: https://reg.experiences.redhat.com/flow/redhat/3977379/fieldeventsregapproveform/page/landingregistrationpage **Schedule** 17:00 - 18:00 Doors open 18:00 - 18:15 Intro session 18:15 - 19:15 AI agents, skills, demos and sandboxing 19:15 - 19:30 Break 19:30 - 20:30 Panel discussion: putting agentic AI in production 20:30 - 22:00 Networking & food **Sessions** **Session 1: AI agents, skills, demos and sandboxing** **Speaker:** Burr Sutter, Director of Developer Experience at Red Hat **Description:** AI is no longer just about sending prompts to a chatbot. Developers are now exploring skills, agents, tools, MCP servers, and workflows where AI systems can take action instead of only generating text. In this session, Burr Sutter will explain what skills and agents are, how they work, and why they matter for developers. Through demos, he will show how these concepts are implemented and defined within Red Hat, and how agentic systems can be sandboxed with technologies such as OpenClaw. Whether you are new to AI or already experimenting with agents in your own workflow, this session will help you connect the concepts to practical developer use cases. **Session 2: Panel discussion: putting agentic AI in production** **Panel participants:** Burr Sutter, Director of Developer Experience at Red Hat Stephan Janssen, founder of Devoxx and organizer of Devoxx Belgium One mystery guest, to be announced later this week **Description:** Building a demo with AI is one thing. Putting AI, and especially agentic AI, into production is something else. After a short break, we will continue with a panel discussion on what it takes to use AI safely and effectively inside an organization. We will discuss how to get started, what developers should keep in mind, what organizations need to prepare for, and how to think about governance, security, reliability, and platform support. The panel will bring together different perspectives from developer experience, AI-assisted software development, enterprise readiness, and the changing role of developers in the age of intelligent systems. This panel is for developers who are curious about AI, developers already using AI tools, and teams wondering how to move from experimentation to real adoption. **About Stephan Janssen** Stephan Janssen is the founder of Devoxx and organizer of Devoxx Belgium. In recent years, his work has focused heavily on LLMs, AI-assisted software development, and Agentic Engineering. He actively explores technologies such as local and cloud-based LLMs, multi-agent systems, MCP, RAG, Spec-Driven Development, and AI-powered developer workflows. Stephan is also the creator of DevoxxGenie, an open-source IntelliJ IDEA plugin that enables developers to interact with local and remote LLMs directly from their IDE. Through talks, workshops, and R&D projects, he focuses on how AI agents are transforming software engineering and how developers are evolving from traditional coders into orchestrators of intelligent systems. More info: [https://stephanjanssen.be](https://stephanjanssen.be/) **About Philippe Bogaerts**: And our next panel speaker is Philippe Bogaerts. Philippe is co-founder and organizer of BruCON, and an enthusiastic researcher and trainer in the world of building, securing, and hacking agentic systems. He is also a wonderful public speaker. Philippe has already presented twice at BDEN, and every time he brings exactly the kind of energy we love: hands-on, practical, sharp, and anything but boring slideware. It is a pleasure to see him explore, break, test, and hack in the agentic AI space. He is one of those speakers who keeps you interested from the first second to the last, because he does not just talk about the topic. He actually gets his hands dirty. With Philippe joining Burr Sutter and Stephan Janssen, this panel is shaping up to be something special. Really looking forward to this one. **Additional note** ***This meetup includes food. Please keep your RSVP status up to date so we do not waste any food. In case you are no longer sure you can join in person, please update your RSVP accordingly.***

De Open Garage is een wekelijkse nerdvriendelijke café-avond in de makerspace/garage van Anthony Liekens. Wekelijks zijn er een paar stamgasten present en ben je zeker ook welkom om eens te komen kijken of een ideetje of technisch probleem op informele manier aan de groep voor te stellen. Breng iets mee om te drinken en share het in onze community koelkast. Maak-projectjes om over te brainstormen of aan te werken, en vriendjes zijn zeker ook welkom. Minderjarigen zijn welkom, maar enkel onder begeleiding van een volwassene.

Making the new Friends after work or in your vacation.

Looking to improve your public speaking and/or leadership skills? You're in the right place! For more than ten years, Toastmasters Antwerpen has been the place to be for everyone in Antwerp who wishes to improve their public speaking and leadership skills. At Toastmasters Antwerpen you will find a friendly and encouraging environment where you can learn, improve and grow. **How do I join?** If you are not a member yet, we highly recommend you to join one of our meetings as a guest. It's free and a great way to get to know the club. Register through: [https://www.toastmastersantwerpen.be/be-our-guest](https://www.toastmastersantwerpen.be/be-our-guest) If you are a member, then just confirm your attendance on EasySpeak and you will get access to the meeting link via our WhatsApp group. **When do we meet?** Every 1st & 3rd Thursday of the month at 20:00. **Which languages do you speak at the club?** We are a bilingual club for English and Dutch, so you our member give speeches in whichever of those languages they prefer.

Socializing and Networking 🛜🆕 at PLUX on Thursday. Making new friends and drinking 🚰🎈🎉🚿🌊. Everybody Welocme, locals, expats or new 🆕 in town.

**🃏 WHAT WE PLAY** We focus on **social interaction games** that are **fun, easy to learn, and engaging**. * **Thursdays** and Saturday nights are for **fun, social games** like Dixit, Coup, Skull, Codenames, Colt Express, Secret Hitler, Exploding Kittens, Bang and more!… Easy to learn, quick to laugh! * **Mondays** are for **deeper strategic games**, for players who love to plan and outthink opponents. Of course, these are just guidelines — you’re always welcome to bring and play whatever game you love! *** **🕖 SCHEDULE** * We meet at **7:00 PM**, with an **intro round at 7:15 PM**. * Arriving later? No problem! Just see a host — we’ll do our best to find you a seat. You might need to wait for a game to finish before joining the next one. **🎉 Good News! BFG is Free Again** As of July 1st, 2025, BFG is once again **free to join**, just like last year! The costs of running the group are now shared by the hosts. If you enjoy the events and want to say thanks, you're very welcome to **offer a drink (or two 😉) to a host** during the evening. A huge thank you to everyone who supported us financially earlier this year — you helped keep the group going, and we truly appreciate it. 🙏 *** **🎒 WHAT TO BRING** * Bring your favorite games and feel free to mention them in the comments. * If we’re meeting in a **park**, bring snacks, drinks, and something comfy to sit on — the grass can be damp even in summer! *** **☕ IF THE VENUE IS A CAFÉ** Please order **at least one drink** to support the venue, and pay directly at the bar. *** **✅ REGISTRATION** Please RSVP to help us plan for space and group sizes. **⌛ WAITLIST ETIQUETTE** * If you can’t make it, cancel **before 7 PM the day before** to give someone else a chance. * If you're **on the waitlist** and your plans change, cancel your RSVP so others aren't left hanging. *** **🤝 WANT TO HOST?** Interested in becoming a host or helping out? Let us know — we’d love to have you on board! *** **💬 FEEDBACK WELCOME** Suggestions or ideas? Drop us a message anytime — we’re always looking to make BFG even better. *** ### **🌟 Let’s have fun, discover great** **games, and build and make new friends** *** ###

Join us for a relaxed open water swimming session in Hofstade. 🏊‍♀️ June 7, we're heading to an open-water pool in Hofstade, the perfect bridge between pool and open water. You still have the safety of the pool, open sky, fresh air, and no chlorine. We’ll help you build confidence in the water, share open-water tips, support your technique, and you might just meet your next training buddy Tereza opens and closes the session with warm-up and cool-down on land. To join this session, you should be able to comfortably swim at least 200m continuously. Entry yours (€6 webshop / €8 door), everything else on us for this first session. Here you can get your [tickets](https://luwio.sport.vlaanderen/aanbod/aankopen/tickets/strandtoegang?fbclid=IwY2xjawSKKf9leHRuA2FlbQIxMABicmlkETFmNTRkZkZZTElJa2ZUWmc5c3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHlJJQhS17IYNNo9_ukoCd1o2oibiJsffoPlLl58GdbeOiPVEJAsR2KxrgBj1_aem_jUZn3mlFu0Jf6iZj3N2XMg)! Follow [Swimay](https://www.facebook.com/profile.php?id=61589530959449) on FB or [Instagram](https://www.instagram.com/swimay.eu/) so you don't miss full details! Feel free to join us and invite other swimming or sport enthusiasts. We’ll share the final practical details during the week, including the exact meeting time and meeting point.

Join us for a full day of collaborative work at HSBXL! This event is open to everyone who enjoys working in a community environment, whether you're advancing on business ventures, freelance projects, or creative endeavors. Bring your laptops, your enthusiasm, and your projects to collaborate, learn, and share in the main room of our spacious hackerspace. During this **8-hour co-working event**, you'll have the opportunity to work on your project, ask for feedback, offer help to others, and if you wish, share your achievements at the end of the day. **Please Note**: While HSBXL has multiple rooms for various purposes, this coworking event is taking place in the main room. It's important to note that online meetings should be avoided during this event to prevent noise disturbance and to maintain a conducive work environment for everyone. \#\#\# What the day will look like: 1\. Introduction and setting up: Find a comfortable spot in the main room\, set up your workspace and grab a Club Mate\, soft drink\, or a coffee to get your day started\. 2\. Work Session: Dive into your project\, seek assistance\, and collaborate with others\. 3\. Sharing Session: Optional\, but encouraged\! Share what you've worked on\, your challenges\, and triumphs\. \#\#\# How to get to HSBXL: HSBXL is located in Brussels. For detailed instructions on how to get to the hackerspace, please visit [here](https://hsbxl.be/enter/). If you encounter any issues while trying to get in, you can contact us at +32 28804004. Please note that the phone is inside the space. Alternatively, you can also reach out to us in our [Matrix chatroom](https://matrix.to/#/#hsbxl:matrix.org). \#\#\# Requirements Please bring your laptop, and if you have, an extension cord. The space has WiFi, but having your own internet backup solution can also be useful. Join us at this **8-hour co-working day** in the main room of HSBXL, and we hope you'll have made progress on your projects, learned something new, and most importantly, enjoyed the power of community collaboration. Whether you're a freelancer, entrepreneur, or creative, we welcome you to this day of productivity, sharing, and collaboration.

Making news Friends doesn’t not be hard at all🤍❤️

Need some quiet time for reading? Want to share the experience with others? Join us at the charming venue of The Sister Café to read in the company of others. It’s alone, but also together, get it? We read for an hour and a half, then chat over a drink. This is a free activity except for the price of the drinks you're consuming.

Hi everyone, This coffee morning event is @MIR Concept Coffee Store! Saturday, 6 June 2026, from 10:00 - 13:00. MIR opened its doors 4 years ago, right off Place Jourdan. Doriana, the owner, is a super nice host, and is excited to have our group as her café. The café is very beautiful and has great coffee, and many yummy food options. Their Instagram channel: https://www.instagram.com/mirconceptstore/ **The address is:** MIR Concept Coffee Store Rue Gray 4A 1040 Etterbeek *** 1. The **prime time** of the event is **10:30 - 12:30**. That's when most people will be there. 2. When you enter the gallery, it's either on the right-hand side or left-hand side of its hallway, depending which entrance you take. 3. If you intend **to join past 12:00** (high noon), then there is no need to register. Just come and join! 4. **DON'T forget to cancel** if you can't join! 5. **Please, be respectful towards each other during the event. (And after ;))** **As always, feel free to follow us on INSTAGRAM!** [https://instagram.com/weekendmorningcoffee?igshid=OGQ5ZDc2ODk2ZA==](https://instagram.com/weekendmorningcoffee?igshid=OGQ5ZDc2ODk2ZA==) **THE STRUCTURE of THE EVENT:** * I will post the event on Saturday/Sunday evening for the following Saturday. * I send out a reminder to everyone on Friday. * There is sometimes a waiting list. * In case RSVP is closed (once there are 10-15 people on the waiting list), I might reopen it on Friday, depending on the number of cancellations in the meantime. * **For everyone on the waiting,** please check your status and messages on Friday evening the latest. I message everyone on the waiting list on Friday. * **Please, move to "not going" AS SOON AS you know that you can't come anymore, that includes everyone who is on the waiting list.** **IMPORTANT:** * **Please, be respectful towards each other during the event. (And after ;))** * When you register yourself, be careful not to register accidentally a +1 guest (unless you bring a guest). It happens very often. * If you have any questions then, message me. *** **A MESSAGE FOR NEWCOMERS:** *In the three years of hosting this coffee group, I have met many people who struggle with anxieties when coming to an event for the first time. Sometimes, it took them more than one attempt before being able to join.* *Occasionally, people reach out to me before the event, and I have always been grateful for that as it offers the opportunity to communicate with each other and to find the best and most gentle way for that person to join the group.* *I would like to encourage everyone who struggles with this to contact me before. It would really be too bad if you can't join us, as it mostly gets better the second or third time you come.* *In addition to that, if you arrive and notice any signs of nervousness or fear, you can always let me know right then.* **THANK YOU AND SEE YOU ALL ON Saturday!**

Welcome to our weekly event in the upstairs room of The Sister Café, rue Chair et Pain 3, one block from the Grand Place. Please get there early enough to order your drink at the bar first. Thank you! After introductions we will collect questions from the group participants, choose one by voting then discuss it for an hour. Then most of us stay for drinks and bizarre conversations. Past questions have been wide and not confined to academic philosophy: What is a genuine friend? Is social media turning us into emotional zombies? Do we lose some of the experience of things by defining them? Are we driven by sex? Is loneliness a personal failure? Is morality relative? **Crucially, be kind and respectful and generous** in your disagreements; remember how much you personally enjoy someone else proving you wrong before celebrating your cutting counterexamples.

Let's meet to write ! Schedule : 11:00 - 11:30 am : Presentation tour. Share briefly with the group about your project and your "goal of the day". 11:30 - 13:30 : Let's write ! 13:30 : Conclusion tour. Did you achieve your goal of the day ? See you soon !

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!

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!

Where innovation meets practicality. Join us in **Columbus, OH** for our **immersive event** featuring dynamic, audience-driven demonstrations showcasing the groundbreaking features of our software. We'll cover a wide range of topics, from Manufacturing and Accounting to Inventory Management, Sales/CRM, and eCommerce, as we **delve into the capabilities of Odoo 19**. Discover how it can transform your business processes and support your journey towards digital transformation! Attend for FREE -[ ](https://www.odoo.com/r/dKG)**[Register now!](https://www.odoo.com/r/QU4)** For any inquiries, feel free to reach out to us at ellee@odoo.com

Odoo Academy is a series of **one-day**, **FREE training** sessions where participants can learn directly from our **seasoned experts**. Master a specific **Odoo application** or delve into **industry-specific** functionalities. Join us in our **Columbus, OH** for hands on training in Odoo's Accounting app and take your business to the next level! Training will be given in **ENGLISH**. Lunch is **included**. Participants must bring their **OWN laptop** for the practical exercises. For any inquiries, feel free to reach out to us at ellee@odoo.com. [Register Here Now! ](https://www.odoo.com/r/8yd)**[\[](https://www.odoo.com/r/gO9)Limited Seats Available!]**

Interested? Contact Preston Moore k.preston.moore@gmail.com 614-300-5989 ———————————— Engaging in men’s work is the new way to forge friendships while being open-minded to personal growth. Many men experience healthier relationships, personally and professionally, by engaging in this work. Open Men’s Group is a container for men to share vulnerably without receiving judgment or feedback. We believe that emotionally mature, powerful, compassionate, and purpose-driven men will help heal some of society’s deepest wounds. We support the powerful brilliance of men and we are willing to look at, and take full responsibility for, the pain we are also capable of creating – and suffering. We care deeply about men, our families, communities, and the planet. Visit ManKind Project USA to discover more. https://mkpusa.org/

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd