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Welcome to TechTuesday at HSBXL. It’s where tech enthusiasts hang out, projects get tinkered with, and the occasional debate over the best programming language ensues. Whether you’re an old hand at hacking or just dipping your toes: * **Chats & Code**: Engage in hushed tech tales, showcase your latest digital masterpiece, or simply bask in the mesmerizing rhythm of coders at work. * **Ambient Rhythms**: We curate a backdrop of everything from ambient rock to downtempo electronica. It sets the mood, enhancing the creativity without becoming a distraction. * **Refreshment Protocol**: Club Mate to fuel your creativity, assorted beers for contemplation, and soft drinks for a refreshing pause. Choose your brew. * **Machinery Magic**: Our space boasts more than just computers. Soldering irons hiss and 3D printers hum, telling tales of projects brought to life. * **Knowledge Exchange**: Encountered a tech puzzle? Someone in the room might have just the insight you need. And if you’ve unraveled a digital mystery, consider sharing it. **Note**: The beauty of HSBXL is its welcoming ethos. Member or not, if you’re curious and respectful, you’re one of us. ### Getting to HSBXL HSBXL, the beacon for tech enthusiasts in Brussels, awaits. For your navigational needs, check [here](https://hsbxl.be/enter/). Barrier issues? Broadcast at +32 28804004. For real-time digital dialogues, tap into our [Matrix chatroom](https://matrix.to/#/#hsbxl:matrix.org). ### Bring Along Your tech gear, a project in progress, or simply a mind open to the endless possibilities of tech. That’s TechTuesday at HSBXL. A laid-back evening where tech happens, naturally. See you there.

## **June 2nd, 2026 @KU Leuven (Heverlee)** ### **Location:** **KU Leuven Dept. Computer Science** Auditorium A.00.225 Celestijnenlaan 200A 3001 Heverlee ### **Agenda** * 17:45 - 18:30 : Welcome (drinks + sandwiches) * 18:30 - 18:40 : **OWASP update** * 18:40 - 19:40 : **Secure Coding with AI: Building Safer Software with Claude Code and Codex** (by Jim Manico, Manicode Security) * 19:40 - 19:50 : break * 19:50 - 20:50 : **The Vulnpocalypse is hitting the physical realm: Reverse-engineering IoT devices with open source tooling and LLMs** (by Georges Bolssens, Toreon) More info can be found on the Belgium OWASP chapter page at [https://owasp.org/www-chapter-belgium/#div-meetings](https://owasp.org/www-chapter-belgium/#div-meetings) . Our chapter meetings are open for everyone, and attendance is free of charge. We ask you to register on Meetup in order to provide you with last-minute updates, if needed.

Let's meet to write! Schedule : 18:30 - 18:45: Arrival & introduction tour. Share briefly with the group your project and the "goal of the day". 18:45 - 20:00 : Let's write! 20:00 : Closing tour. Did you achieve the "goal of the day" ? See you soon !

EN (FR en bas): We're still accepting people in our classes. Join us!​ -step 1: Book here! -> [https://www.danceproject.be/reservations.html](https://www.danceproject.be/reservations.html) -step 2: Show up! [Schedule](https://www.danceproject.be/classes.html#schedule) Fees : [All info on trials, packs, subscriptions here](https://www.danceproject.be/classes.html#fees) Locations: -Parc du Cinquantenaire, Brussels Metro/Tram: Mérode Salsa, Bachata, Lindy Hop, Forró Intro - 1: From base to the dancefloor! When you come for the first time we go over the base & rhythm with you. Then you are included in the group and everybody learns the same new steps for which you just need the base. Practice makes perfect: just relax and enjoy Salsa, Bachata, Lindy Hop and/or Forró! Our group is very welcoming and looking forward to meet new dancers! Salsa, Bachata, Lindy Hop, Forró Roots I - 2: Ready to go deeper on Salsa, Bachata, Lindy Hop &/or Forró? Let's go! [https://www.danceproject.be/classes.html#improvers](https://www.danceproject.be/classes.html#improvers) Salsa, Forró Roots II - 3: Looking for #SalsaChallenge? Already familiar with Forró Root? We've got your back! [https://www.danceproject.be/classes.html#intermediates](https://www.danceproject.be/classes.html#intermediates) More info: -Web: [https://www.danceproject.be](https://www.danceproject.be) -Whatsapp: +32 493 16 41 10 -Mail: brussels.salsa.project@gmail.com -[Facebook](https://facebook.com/brussels.salsa.project) -[Instagram](https://instagram.com/brussels.salsa.project) \-\-\-\-\- FR: Nous acceptons encore de nouvelles personnes dans nos cours. Rejoins-nous ! -1ère pas : Fait ta réservation ! -> [https://www.danceproject.be/reservation.html](https://www.danceproject.be/reservation.html) -2ème pas : Vient danser ! [Horaire](https://www.danceproject.be/cours.html#horaire) Les prix : [Toutes les infos sur les essais, packs, abonnements ici](https://www.danceproject.be/cours.html#prix) Endroits : -Parc du Cinquantenaire, Brussels Metro/Tram: Mérode Salsa, Bachata, Lindy Hop, Forró Intro - 1 : De la base à la piste de danse ! Lorsque tu nous rejoins on voit la base et le rythme avec toi. Ensuite, tu es inclus dans le groupe et tout le monde apprend les mêmes pas pour lesquelles tu as juste besoin de la base. C'est en forgeant qu'on devient forgeron : détend-toi et profite la Salsa, de la Bachata, du Lindy Hop et/ou du Forró ! Notre groupe est très accueillant et a hâte de rencontrer de nouveaux danseurs ! Salsa, Bachata, Lindy Hop, Forró Roots I - 2 : Prêt à approfondir la Salsa, la Bachata, le Lindy Hop &/ou le Forró ? Allons-y! [https://www.danceproject.be/cours.html#inities](https://www.danceproject.be/cours.html#inities) Salsa, Forró Roots II - 3 : Tu cherches #DefiSalsa ? Tu connais déjà Forró Roots ? Nous sommes là pour toi ! [https://www.danceproject.be/cours.html#intermediaires](https://www.danceproject.be/cours.html#intermediaires) Plus d’info: -Web: [https://www.danceproject.be/fr.html](https://www.danceproject.be/fr.html) -Whatsapp: +32 493 16 41 10 -Mail: brussels.salsa.project@gmail.com -[Facebook](https://facebook.com/brussels.salsa.project) -[Instagram](https://instagram.com/brussels.salsa.project)

Debut of Clank! Legacy 2 campaign. CLANK! Legacy returns with an epic sequel — **[Clank! Legacy 2: Acquisitions Incorporated - Darkest Magic](https://boardgamegeek.com/boardgame/383010/clank-legacy-2-acquisitions-incorporated-darkest-m)**. Play co-operatively and competitively in the world of Penny Arcade's Acquisitions Incorporated! This campaign has already a fixed group to play it.

La idea es quedar y practicar francés y español en Bruselas. Apto para todos los niveles. Groupe pour améliorer l'espagnol et français à Bruxelles. Pour tous les niveaux. Nos juntaremos en el Centro Cultural Metaprosa (Chaussée de Saint Pierre 9, 1040 Etterbeek, Bruselas) para conversar con un café o una cerveza en la mano. Todos los martes de 19.00- 21.30.

Would you like to improve your language skills and networking in a casual atmosphere? This event is for you! All languages welcome! Everyone is welcome! The aim is to speak with native/fluent speakers of your target language(s). You'll be around all types of people throughout the whole event. We will be in a private area. A great atmosphere is guaranteed! You'll have to order a drink to attend the event 😀 Don't hesitate to contact us for any further information

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.

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.***

We welcome you to our meetup 19:45 Grab a chair and a drink 20:00 - TBA 21:00 - Talking and drinking till you go home If you want to present something, contact us: p2p.gent@gmail.com *There are limited seats reserved, so please RSVP if you want to attend. We can only allow 50 guests.*

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.

Join us for the first ever **ETA Europe** event in Brussels, hosted in partnership with Novadvice, one of Belgium's leading SME acquisition boutiques. **Adrian Carniol from Novadvice** will share his perspective as an investor who has backed multiple business acquisitions across Europe: what he looks for in searchers, how he structures deals, and where he sees the opportunity developing in the Benelux. Format: * Welcome and introduction by Alexander Kelm (ETA Europe & [Buyout Diary](www.buyoutdiary.com)) and Adrian Carniol ([Novadvice](https://www.novadvice.com/)) * Overview of acquisition entrepreneurship and the European opportunity by Alexander Kelm (10 min) * Investor keynote by Adrian Carniol sharing his journey, investment criteria, and insights (25 min) * Panel discussion with Charles d’Ursel (searcher), Eyal Kaplan (CEO and operator), and Marc Michiels, co-founder of Novadvice (investor), moderated by Alexander Kelm * Open Q&A with the audience Networking and drinks afterwards Location: Brussels. Exact address will be shared with registered attendees a few days before the event. Capacity: 60 people, limited seats available. Drinks provided by Novadvice. Whether you are actively searching, exploring ETA, or investing in the space, everyone is welcome. We regularly have people joining from across Europe, including BeNeLux, France, Germany, the UK, and beyond. See you on 3 June!

New formula: Free coworking day for people working in crypto during the day. Happy hour and meetup in the evening. ​Come cowork and mingle with fellow crypto enthusiasts at the Commons Hub Brussels every first Wednesday of the month. ​Stay focused on your work in the coworking or offer or join a workshop, conversation or presentation, unconference style. Reach out if you'd like to sponsor food or drinks.

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

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. So please RSVP for a head count!

We've moved to guild.host Look for us there. https://guild.host/events/buckeye-cocoaheads-nscoders-tcbrk5

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

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9