OWASP

Easter Monday still free? Come join us for a walk between two of Utrecht's most beautiful castles! 🏰 We start from the bus stop Haarzuilens, Kasteel de Haar and make our way through nature to Slot Zuylen, two stunning spots that are worth a visit any time of year. The walk is around 2,5-3 hours and there will be plenty of time to explore both castles and take a break in between. A nice way to spend a hopefully sunny day, get some fresh air, and meet some new people along the way.

If you are living in The Netherlands, by now, you may well have noticed the amount of open water. If you enjoy cycling in the city, you may wish to feel safer as you navigate the bridges and canals. And you may also want to get ready for visiting the beach, pools or the many lakes this summer. Learning how to swim takes approx 1 year and it all starts with the very first lesson. New comers enroll via our website and pay € 30,50, this is the first lesson and a goody bag. After the class you agree with the personal swim coach how to continue to obtain your final objectives. Enrolling is only possible via [www.your-personal-swim-coach.nl ](https://www.your-personal-swim-coach.nl/)hence a rvsp via meetup is not enough.

A great ride along the Vecht and Gein rivers. You will love this route. Please ride single file along the winding river as there can be cars around each corner. **Route:** https://connect.garmin.com/modern/course/441606271 GPX: https://drive.google.com/file/d/17-T_pT_GH3QKSFcH1WWgfArvxSdAkVzO/view?usp=sharing **Afterwards:** Drinks at Polder https://maps.app.goo.gl/tbt5DDG7YLU3uWvaA **Rules:** \- Download the route to your cycling computer so you can always find your way home \- Make sure to arrive on time \- Before you ride\, decide as a group how you want to ride: you can split up in a fast and a slow group or stay together\, but make sure to discuss what pace you are going to ride and whether you are going to wait if someone is slower than the group\, or not\.

Samen sporten, gewoon voor de fun, elke week een divers programma, met allerlei verschillende sporten. Je hoeft niet de beste te zijn, maar wel zin hebben om samen te spelen en te leren. Tijdens een training doen we verschillende spelletjes, basketbal, voetbal. volleybal, spikebal, honkbal. Kom je ook, de bal ligt bij jou!! Eerste keer meedoen is altijd gratis, daarna kan je beslissen of dit voor jou is, of niet!! Dus kom een keer proberen. Kan je niet op deze dag, we sporten ook op andere dagen nl Zondag om 9:30 of Maandag om 20:30 Stuur mij een berichtje als je op die dagen een keer wil proberen! The amount of people rsvp'd to this game doesn't match the real number of people at the event, as Meetup is only used for promotion purposes.

New Year, New Sport! 🏐 ​Whether you've never played volleyball before or it’s been many years since you last hit the court, you are very welcome to join our Beginner Group! ​We train every Monday at 9 PM at Gymnasium Bibian Mentel in Zeeburgereiland. ​Come learn the basics, get moving, and meet new people in a fun, relaxed environment. ​Get more info here: ​WhatsApp Group: https://chat.whatsapp.com/EnPEK1bHLiTGdpqz6Vtbm4 ​Instagram: @brazucavolley

This is one for the early birds, but gets you back into the city by 7.45-8am, so you can still make it in time for work. **Route:** https://connect.garmin.com/modern/course/441546437 GPX: https://drive.google.com/file/d/1L3O5N_7rzLdy8d5QbCsnhMnY0EyudJ2n/view?usp=sharing **Afterwards:** Coffee at Coffee Company https://maps.app.goo.gl/WDTpAJ6TurQwFANd8 **Rules:** \- Download the route to your cycling computer so you can always find your way home \- Make sure to arrive on time \- Before you ride\, decide as a group how you want to ride: you can split up in a fast and a slow group or stay together\, but make sure to discuss what pace you are going to ride and whether you are going to wait if someone is slower than the group\, or not\. \- The end of the route is a coffee stop that opens at 7:30am so you can socialize

It's time for a new Dutch PowerShell User Group in-person edition. This continues our community events, bringing people together around DevOps, PowerShell scripting, and automation in the Netherlands. Hosted at Rubicon in Leusden, the evening will be a chance not only to learn but also to reconnect with fellow community members. **Speakers** As part of this restart, we have opened a [Call for Papers](https://sessionize.com/dupsug/) to give both new and experienced speakers the opportunity to contribute. The full program will be announced soon. **Agenda** The event will take place on the 8th of April, 2026. All times are listed in CET. * 17:30 – 18:00 Arrival * 18:00 – 18:45 Dinner * 18:45 – 19:00 Welcome from Rubicon / Organizers * 19:00 – 19:45 First Session * 19:45 – 20:15 Break * 20:15 – 21:00 Second Session * 21:00 – 21:30 Networking **Speaker Information** With the restart of DuPSUG, we are opening the stage for both familiar names and new voices. The [CFP](https://sessionize.com/dupsug/) is currently live, and speakers will be announced shortly. **Sessions** As we restart our events, sessions will continue to focus on advanced topics in automation, scripting, and DevOps. ### 1\. Keep secrets away from AI Assistants: Secure Secrets Management with PowerShell \- Jev Suchoi *More often than not, today’s engineering happens inside AI-assisted development environments (IDE's). While this boosts productivity, it also introduces a new risk: secrets leaking into prompts, suggestions, logs, or chat history. This session shows how to set up a local engineering environment using PowerShell so secrets never end up in code, source control, or an IDE’s AI assistant.* *The session starts with pragmatic local engineering patterns: separating configuration from code, structuring local secret files, and using .gitignore correctly to prevent accidental exposure. From there, it moves to a secure-by-default approach using the PowerShell SecretManagement and SecretStore modules. Encrypted vault registration, safe unlocking, and runtime secret consumption are covered without leaking sensitive values into scripts, terminals, AI prompts or sharing them with AI Assistants lurking in your development environment.* *As a demo, secure authentication to Azure and Azure DevOps is demonstrated using PowerShell without exposing credentials to environment variables, clipboard history, or AI tooling. The focus remains on habits and patterns that scale from solo engineers to professional engineering teams.* ### 2\. Modern Powershell module development \- Marko Stanojevic *Demonstrate powershell module template with built in versioning, labeling, CI/CD, devcontainer, VS code settings, built in tasks, Github Copilot and agents instructions, pull request labeling and release notes automatic generation.* *[https://github.com/WarehouseFinds/PSScriptModule](https://github.com/WarehouseFinds/PSScriptModule)* **Location** We are in-person at: Rubicon Leusderend 36 3832 RC Leusden Participation is free, and you are encouraged to attend in person. **Tickets** We kindly ask you to register your attendance through Meetup. Our events are made possible through sponsorship, and accurate attendance numbers help us secure continued support. Please make sure to register if you plan to attend, and update your RSVP if your plans change.

🎭 Improv Utrecht Presents a Show Like No Other! 🎭 The graduates of the course of trainer Emma Holmes at Improv Utrecht will take the stage at Villa Concordia to showcase their skills in a very fun and interactive show, called Time Well Wasted! Expect games like Whose Line Is It Anyway, De Lama's and even improvised singing! 💡 What is Improv? Improv is live, unscripted theatre where anything can happen! The performers create characters, scenes, and entire stories from scratch, all based on audience suggestions and their quick-thinking creativity. It’s spontaneous, electric, and completely unique—no two shows are ever the same! 🎟 Tickets Now Available! Don't miss this one-night-only spectacle of storytelling and laughter. Secure your tickets online before they’re gone! Book your ticket at [improv-utrecht.weticket.io](http://improv-utrecht.weticket.com/) : €12 plus €1 service fee Before and after the show we have a very nice bar to meet & greet people. 📅 When? Sunday 12 April 15:00h. Bar open 14:00 📍 Where? Villa Concordia. In your ticket confirmation mail you find directions to the theatre. Limited free parking spots available, close to Utrecht Central station. Join us for a night of creativity, comedy, and community—we can’t wait to see you there! Find out more about Improv Utrecht, our other shows and courses at [www.improvutrecht.nl](http://www.improvutrecht.nl/)

**You're Invited: Bite by Bite Project second workshop!** **Join our 2nd Bite by Bite Workshop!** **A big thank you to everyone who joined our first session—your energy made it truly special!** **✨ Now, let’s keep going…** **🌱 “It is not a waste”** **🗓️ April 10 | 🕕 18:00** **📍 Rosa Buurcentrum, Utrecht** **Together, we’ll explore creative ways to reduce food waste and build more sustainable, healthy food habits—with hands-on inspiration from a cooking instructor on how to use leftovers.** **🌍 Part of the Bite by Bite Project, a 3-workshop series to co-create ideas for a more sustainable food future in Utrecht. These first two workshops are just the beginning—the perfect lead-up to our final session on May 4, where we’ll co-create with communication and visual experts to design impactful ways to engage our community around sustainable diets.** **👥 Open to Utrecht residents & campus communities (UCU & Science Park)** **👉 Register: https://forms.gle/xX2tAmy4S8KjMToN7** **Let’s create change—bite by bite.** **What to Expect:** **Event Details:** *Date & Time: FRIDAY, 10 April, 2026, 17:00 – 22:00 - Location: Rosa Buurtcentrum, Malakkastraat 6, 3531 HM Utrecht *Audience: Utrecht residents, Utrecht Science Park, and International Campus (UCU) communities. - Cost: Free! Just bring your recipe and enthusiasm. **Ready to make an impact?** **[Please make sure to fill in the registration form to secure your spot!](https://forms.gle/xX2tAmy4S8KjMToN7)** The Bite by Bite project will host three workshops, as a partnership between Utrecht University Medical Centre, Utrecht University College, The Pit, and Being Well Catalysts (Our Cooking Club), funded by the Planetary Health Seed Grants.

'KAFKA ON THE SHORE' by Haruki Murakami 'The aging Nakata, tracker of lost cats, who never recovered from a bizarre childhood affliction, finds his pleasantly simplified life suddenly turned upside down. There is a savage killing, but the identity of both victim and killer is a riddle. Kafka on the Shore follows the fortunes of two remarkable characters. Kafka Tamura runs away from home at fifteen, under the shadow of his father's dark prophesy. The aging Nakata, tracker of lost cats, who never recovered from a bizarre childhood affliction, finds his pleasantly simplified life suddenly turned upside down. Their parallel odysseys are enriched throughout by vivid accomplices and mesmerising dramas. Cats converse with people; fish tumble from the sky; a ghostlike pimp deploys a Hegel-spouting girl of the night; a forest harbours soldiers apparently un-aged since WWII. There is a savage killing, but the identity of both victim and killer is a riddle. Murakami's new novel is at once a classic tale of quest, but it is also a bold exploration of mythic and contemporary taboos, of patricide, of mother-love, of sister-love. Above all it is an entertainment of a very high order.' ***Please read the book and join us for a lively discussion (in English) about the contents during our afternoon book club meeting.*** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **PLEASE NOTE:** This is an IN-PERSON event in Amersfoort, The Netherlands. Please cancel your attendance in advance if you are unable to join, so that those on the waitlist can participate. Looking forward to seeing you all IN REAL LIFE then! Best regards, Sandra

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

**About this Event** Curious how your secure coding skills stack up in real-world scenarios? Join OWASP St. Louis for a **hands-on Secure Code Training Tournament** sponsored by Security Journey. This is not a lecture... you’ll be actively solving real vulnerabilities in a live, interactive environment. **What to Expect** * Hands-on secure coding challenges (break/fix format) * Real-world vulnerability scenarios developers face today * Friendly competition with a live leaderboard * Prizes awarded to the **top 3 participants** **Important Details** * **Laptop required** (you’ll be coding) * Hybrid format: join **in-person or remotely** * Pre-registration required to access the platform * You do not need to be an experienced developer or security expert to participate. The challenges start easy and progress from there. Come have fun! In addition to RSVPing to this Meetup event, please register here to secure your spot and get platform access: [https://forms.office.com/r/VpTMjg8Smw](https://forms.office.com/r/VpTMjg8Smw) Whether you're a developer, AppSec professional, or just getting started, this session is built to sharpen real skills! (\* OWASP does not endorse or recommend commercial products or services, allowing our community to remain vendor neutral with the collective wisdom of the best minds in software security) **Event Details** 📍 **Location:** RubinBrown, 7676 Forsyth Blvd., Suite 2100, Saint Louis, MO 63105 🗓 **Date/Time:** April 28, 2026 / 6:00pm CST **Food and Drink will be provided!** Please RSVP so that we can plan accordingly. ℹ️ **Parking Directions:** * Google map to “North Lyle Avenue & Forsyth Boulevard, Clayton, MO 63105” Link: https://maps.app.goo.gl/WYqyZ3Jv9cUBBF289 * Enter the **Parking Garage #4** (from Forsyth Blvd) next to Dry Bar * **Pull a ticket at the gate** and proceed into the garage, turning right. * Up the ramp is visitor parking. **You may have to go up past the 6th floor.** * **Take elevator to \*L** (Lobby of Centene Plaza C) * Check in at the OWASP sign-in table in the lobby; you'll be escorted up * **Bring your parking ticket with you** to get validated at the meetup. **Who Should Attend** * Application & security professionals * Software engineers and developers * IT leaders and managers * Anyone with an interest in application security * You DO NOT need to be an OWASP member to attend! **About OWASP** The Open Worldwide Application Security Project (OWASP) is a nonprofit foundation dedicated to improving the security of software. Local chapters provide opportunities to learn, network, and collaborate with others in the field. Come to learn more and participate in OWASP Saint Louis - your voice will continue to help shape what OWASP Saint Louis becomes next.

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

Will fill in once finalized.

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!