Biology

**ArnhemJUG** We are excited to announce that we are welcomed by Avisi for the March meetup. **Agenda** * 17:00 CET walk-in * 17:30 – 18:30 Food and drinks * 18:30 – 19:30 talk: **Koog your own AI! Delicious recipes** by **Simon Vergauwen** * 19:30 – 19:45 break * 19:45 – 20:45 talk: **Domain-Driven Design** by **Dirk Groot** * 20:45 – 21:30 drinks **Koog your own AI! Delicious recipes** Koog is an open-source Kotlin framework for building robust, and production-ready AI agents. Developed, and battle-tested in their own products by JetBrains! In this session we’ll build an agent, and explore various techniques to tackle different kinds of problems, and complexity. How we can use model-context protocol (MCP) to give our agent access to external tools, and how to build custom tools to integrate with your own systems. How to define flexible graph workflows to design complex agent behaviors. If you're not cooking your own AI Agents yet, you should! Join me and I’ll give you a taste of Koog. **About** **Simon Vergauwen** **Developer Advocate at JetBrains & OSS (arrow-kt) Maintainer** **Software engineer from Antwerp, Belgium.** Interested in everything functional, and Kotlin. Loves OSS, cooking, snowboarding and Fallou **Domain-Driven Design** What name should I give this entity? How should I deal with ambiguous terminology? Where should business rules be implemented? Is this validation part of the domain logic, or does it belong to the application layer? Which entities should be within the scope of this database transaction? In this talk we explore how the **Domain-Driven Design (DDD)** methodology helps answer questions like these. We will cover the key DDD concepts, including **Ubiquitous Language**, **Bounded Context**, **Aggregates**, **Entities**, and **Value Objects**, and discuss how they fit within a software architecture. The session is built around a practical example, so you will not only learn the theory behind DDD, but also see how these concepts can be applied in real-world software development. **About Dirk Groot** I'm a software engineer with more than 25 years of experience. Since my early teens, sofware engineering has been my greatest passion.

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 // **Meni Shmueli - Distributed Computing Unpacked** // Start networking 9.00pm // End Meetup 9.30pm Greetings, Data Tribes Inc.

Lets meet up at Conclusion Lowcode Company! **Client State & Garbage Collection** Curious how the Mendix Client really works under the hood? Join our meetup and uncover the secrets behind Client State & Garbage Collection and how they impact memory, performance and scalability of your applications. * **How Client State works:** Understand how objects are stored in the browser, how state grows, and why it matters for app performance. * **Garbage Collection in Mendix:** Discover how unused objects are cleaned up, what stays in memory, and what can cause unexpected memory bloat. * **Performance pitfalls & best practices:** Learn how to avoid hidden state issues, optimize your microflows, and keep your app fast and efficient. **Grid Inteligence** We all know about grid congestion and challenges society faces as a result of it. Smart technologies such as demand-side management are key to combat grid congestion. The National Energy Dashboard (NED) which is an joint initiative from Gasunie en TenneT provides free data on energy consumption, production, transport and storage. I present the Footprint Reductor as a lightweight plug-and-play Mendix module to bridge the gap between the data from the NED and Mendix applications. • **Lightweight:** Find out how we kept flexibility while we were eliminating the need for technical know-how. • **Performance:** Learn how we took the client state into account to enable optimal performance. 📅 **Program** * 18:00 - 19:00: Walk-in + Drinks & Food * 19:00 - 19:30: Client State & Garbage Collection * 19:30 - 20:00: Grid Intelligence * 20:00 - 20:30: Networking and Drinks **Speakers** 🎤 Tim Speksnijder Mendix developer with a millisecond mindset 🎤 Frank Dennissen Mendix developer with a sustainability spark **Directions & Parking** This time we host the meetup NOT in our Utrecht office, but in our Nieuwegein office. Set your navigation to Edisonbaan 15, 3439 MN Nieuwegein (free parking). **RSVP** Please register and make your RSVP below. **About Mendix Meetups** This is an in-person event hosted at the Conclusion office in Nieuwegein. Mendix Meetups are all about community, learning, and real-world experience — no sales pitches, no recruiting, just valuable insights and knowledge sharing. *PS. Please understand the impact of no-shows on our resources, so please update your RSVP if a change in plans happens!*

Let's capture the changing light together! We'll meet at Mariaplaats as the sun starts to set and wander through the city as day turns to evening. Bring whatever you like to shoot with - phone, camera, pinhole contraption - it's about noticing the light, not the gear. Afterwards we'll find a spot nearby for drinks. No experience needed - just curiosity and comfortable shoes. Practical stuff: *Date: Thursday 26 March 2025 - Time: 18:00 *Location: Drinking fountain at Mariaplaats - Duration: \~1.5 hours walking, then drinks *Cost: Free (just your own drinks afterwards) - Bring: Something to take photos with, warm layers In case of rain we'll postpone to another date.

¡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!

**Locatie:** Huis van Actief Burgerschap, Neude 11, 3512 AE Utrecht **Datum:** 26 maart 2026 **Tijd:** 19:15 inloop, start 19:30 en eindigt om 21:30 Tijdens dit event ga je aan de slag met reflectie, gesprekken en oefeningen die helpen om inzicht te krijgen in jezelf. In een open en ontspannen sfeer ontdek je nieuwe perspectieven, luister je naar anderen en leer je bewuster omgaan met verlangen, tevredenheid en verandering. Wat doet het met ons, als alles inwisselbaar is? Het maakt ons vrijer en verrijkt ons met nieuwe ervaringen, maar maakt ook angstiger en eenzamer. Ons werk bestaat steeds vaker uit korte projecten, romantische liefdes verbanden worden net zo makkelijk aangegaan als beëindigd en de wereld vereist dat we flexibel zijn. Tijdens dit event ga je aan de slag met reflectie, gesprekken en oefeningen die helpen om inzicht te krijgen in jezelf. In een open en ontspannen sfeer ontdek je nieuwe perspectieven, luister je naar anderen en leer je bewuster omgaan met verlangen, tevredenheid en verandering. **Wat kan je verwachten?** 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). Liever een buddy? Geef het aan bij je aanmelding. Tijdens de avond maak je makkelijk contact met anderen die ook op zoek zijn naar betekenis. Meld je aan en kom bloeien! **Aanmelden kan via de onderstaande link:** https://www.dekwekerij.org/bloeiklas/utrecht-iets-nieuws/

Hi all, This will be our seventh meetup and we’re back at our local watering hole, Mick O’Connells. We have the right side reserved just for us. When you walk in, turn right at the bar and head past the dart boards. It’s the side room. Bring your stories, your energy and your ambition. This is a space to talk business, meet sharp people, or simply decompress with others who understand the game. All we ask is that you are an entrepreneur, freelancer, or planning to become one within the next 3 months. If not, the countdown starts now 😉 We’ve introduced a new social format to keep things more interactive while protecting the good vibe. Please do your best to arrive on time so we can kick things off together properly. Follow the grey and brown gnome in the photo below to find us. He’s our mascot. Any questions, just ask.

* We **start at 12:15** at P&R Station Lunteren Spoorstraat 9, 6741 DE Lunteren https://maps.app.goo.gl/S1CFFxbpqNsP2VkR9 * Length: \~13 km (4 - 5 hr hiking) * What to bring: lunch, water, snack. * For whom: As always, sporty folks that like to combine social event with being active in nature. **Getting there by Train:** * To station: Lunteren https://maps.app.goo.gl/w5rTEBuumoxCgQ6U8 **Getting there by Car:** * Free car parking: at the P&R and in the streets Spoorstraat 9, 6741 DE Lunteren https://maps.app.goo.gl/tEt2gSJnAueVMNw86 **Note:** * Please **pay a small fee (3 euro)** to help us cover the (increased) yearly Meetup contribution of 240 euro. We'll ask you to pay before the start of the hike (can be on the day itself). No refunds, but in the unlikely event that hike would be cancelled and you already paid, you don't need to pay for your next hike. Thank you so much! Use the **safe link** here: https://betaalverzoek.rabobank.nl/betaalverzoek/?id=cqlYWv_MTpSjp2VkROXWhA * Keep in mind that the hike can be canceled when the weather is very bad (**always check the event before you go**). * If you RSVP 'yes' we expect you to show-up. Please do not cancel less than 24 hours before the hike. **No-shows** will lead to your removal from the group. Thanks for the understanding. * By signing up for this event, you agree to release the organizers from any responsibility and liability in all claims. As the participation is strictly voluntary and you freely choose to join, it is the responsibility of individuals participating to ensure that they are fit enough and have adequate coverage to protect themselves.

Feel free to RSVP to show your interest on Meetup, but **[tickets must be purchased via this link.](https://buytickets.at/urbanherbology/2051509)** **Discover Edible & Medicinal Plants in Amsterdam** Have you ever wondered which wild plants around you are safe to eat, medicinal, or best left alone? Would you like to learn how to recognise nutritious, free plants growing right now — and how to use them confidently at home? Join this gentle, informative foraging walk through Park Frankendael and discover how urban nature can support your health, diet, and connection to the land. On this walk, you’ll learn how to: * Recognise edible and medicinal plants growing locally this season * Harvest wild plants safely, ethically, and sustainably * Avoid common poisonous lookalikes * Use wild plants for food, simple remedies, and everyday wellbeing Along the way, you’ll enjoy a cup of freshly brewed herbal tea made from wild plants, and you’ll receive a handout to help you remember what you’ve learned and continue exploring on your own. This walk is suitable for beginners to experienced, and the naturally curious — no prior knowledge needed. *** **Practical Details** Start & End Point: Bike racks near Huize Frankendael / Restaurant Merkelbach Terrain & Pace: Easy, relaxed walking on natural paths (woodchip, soil, grass, woodland edges, water edges, and the foraging gardens) Weather: The walk goes ahead in all weather except storms What to Bring: A bag if you’d like to gather herbs or seeds. It is Wild garlic season by the way - so plenty to take home. Facilities: Public toilets available in the park Language: The walk is in English (Dutch also spoken) *** **Your Guide** Your walk is led by Lynn Shore, a medical herbalist and [urban foraging educator](https://urban-herbology.org) with over 15 years’ experience helping people rediscover the edible landscape around them. Lynn runs Amsterdam’s city foraging garden and works with community groups, environmental organisations, chefs, and eco-restaurants. She combines practical plant knowledge with a public-health perspective on food, wellbeing, and urban nature. In 2025, she took part in the WildBiome project, living on wild local foods for a month to explore their effects on the body — insights that inform her teaching today. Lynn is also the author of [The Green City Witch](http://www.greencitywitch.com). *** Cancellation Policy * Full refund for cancellations made at least 24 hours before the event * Cancellations within 24 hours can be refunded only if your place is filled

**DDSCC Meetup 7** 📅 **Datum:** Vrijdag 27 Maart 2026 🕐 **Tijd:** 12:30 – 17:00 📍 **Locatie:** Rubicon Cloud Advisor, Leusderend 36, 3832 RC, Leusden **Wat kun je verwachten?** **Agenda** * 12:30 – Inloop met koffie en lunch * 13:30 – Opening door DDSCC * 13:45 – Introductie door Rubicon Cloud Advisor * 14:00 – Jasper Oosterveld: With Great Power Comes Great Labeling: Sensitivity Labels in de Praktijk * 14:45 – Pauze * 15:15 – *Jeroen Bijdevier:* Je omgeving op orde voor veilig en optimaal Copilot gebruik * 16:00 – Ronde tafel gesprekken * 16:30 – Borrel & netwerken (tot 17:00 uur) **Session description:** **Jasper Oosterveld - With Great Power Comes Great Labeling: Sensitivity Labels in de Praktijk** Veel organisaties hebben inmiddels sensitivity labels geïmplementeerd als basis voor data security in Microsoft 365. Maar zodra je voorbij de basis komt, ontstaan er nieuwe vragen. Hoe ontwerp je een werkbaar labelmodel? Hoe voorkom je dat gebruikers verdwalen in te veel labels? Wat betekent labeling voor Teams, SharePoint, Data Lifecycle Management en Microsoft 365 Copilot? En waarom gedraagt het platform zich soms nét anders dan je verwacht? Tijdens deze interactieve sessie deel ik mijn praktijkervaringen met sensitivity labels: keuzes die goed uitpakten, dingen die ik achteraf anders zou doen en de frustraties die je alleen tegenkomt wanneer je labels écht gaat gebruiken in productie. Dit is nadrukkelijk geen theoretische sessie. Neem je eigen ervaringen, uitdagingen en meningen mee, zodat we samen praktijklessen kunnen uitwisselen en ontdekken hoe we sensitivity labels effectiever kunnen inzetten. **Jeroen Bijdevier - Je omgeving op orde voor veilig en optimaal Copilot gebruik** Copilot ziet het verschil tussen achterhaalde en recente informatie niet. Die zal je dus een beetje moeten helpen. Rechten zijn vaak niet (in detail) op orde. Manueel deze zaken vinden is lastig en tijdrovend. Natuurlijk wil je rapportages hebben van het gebruik. Ergo dataveiligheid op orde en inzicht in het gebruik met Purview.

🏔️ Everest Update for the Veluwe Power Hikers We were preparing for a classic VPH high altitude expedition on top of the world. Unfortunately there is some disappointing news. Starting in 2026, Nepal is introducing strict new regulations for climbing Mount Everest. Climbers will now need to have previously summited a 7,000 meter peak in Nepal and must also submit mandatory health certificates. Because we cannot realistically summit a 7,000 meter peak and then climb Everest on the same day during our hike, I am unfortunately obliged to change the program. There is also another small complication. 1 April falls on a Wednesday, which makes organizing the expedition a bit difficult. After a poll in the WhatsApp group, we decided to move the date to **28 March** and climb the highest point of the Veluwe, **Signaal Imbosch (110 m)**. Even if it’s not Everest, don’t underestimate this hike: we will cover **22 km with about 350 metres of elevation gain** at a brisk pace. At this altitude, however, oxygen bottles are no longer recommended. Please update your RSVP if you can no longer attend due to the change. ⛰️🥾 **When and Where to Meet?** 10:10 sharp at Rheden Trainstation. ⏰ Please arrive on time, as we won’t be able to wait for latecomers. 🥾✨ https://maps.app.goo.gl/VaEtswyBps5awMoL7 **Where and When Shall We Rest?** We’ll take 2 breaks: * Lunch break in nature at Signaal Imbosch (110 m) with group photo on summit; 20 min * Snack and drink at Basecamp (80 m) where you can buy drinks and snacks; 30 min **Notifications:** * Technical equipment: avalanche transceiver (beacon), avalanche probe, and avalanche shovel (if you have them) * A compact lunch and water to share at the summit * The hike will only be canceled in case of severe avalanche risk (code 5). * If you plan to bring a companion, please ensure that they are also registered for the hike. * To be the first to get updates on new hikes, join our WhatsApp group! Feel free to ask for the QR code during the hike to easily join. * T-shirts are now available for €25, made from Fairwear-certified organic cotton with eco-friendly inks—sustainable, odor-resistant, and perfect for your hiking adventures (limited stock, available during the hike)! Let me know your size and I will bring one for you!

Welcome to the event page of the Walk & Talk in Arnhem Sonsbeekpark, taking place on Sunday March 29th, 2026. This event is a informal walk where we will connect again and perhaps meet some new people. It will be the first day of Daylight Saving Time and, fortuitously, *Zeldzaam Mooi Markt* is taking place in Sonsbeek. We plan to make a stopover here. Our event is free and open for everyone to join, including Dutch and internationals. **Practical information** \- The meetup of this walk is at **13:00 at Arnhem station, near Burger King**. We’ll start walking after 10 minutes. \- A walk like this is at a casual pace and usually takes about 2 hours\, including breaks\. We are focusing on an area\, not a specific route\. This gives us some room for suggestions of participants like when to have a few minute break\. \- We will take a coffee break at a café in between or afterwards if there's enough interest\. \- B\-YOU: Bring your own umbrella\, in case of rain\. If the weather is really unacceptable we will go to a café instead\, or cancel the entire event\. \- You can leave at any time you like\. **Sign up via Meetup OR E-mail** Please sign up for this event by RSVP on Meetup OR send an e-mail to **[urbanarnhem@gmail.com](urbanarnhem@gmail.com)** . Joining the event is free, but donations will be very appreciated. We are making costs to keep this group active on Meetup, so any (small) donation will go directly to keeping our page online. We hope to see you on this walk! \*\*\* **Disclaimers** \*SOCIAL MEDIA We might upload some of our photos and videos on social media. If you don't want to be recognized, please let us know. Our Instagram is: [@urbanrural.arnhem](www.instagram.com/urbanrural.arnhem) \*RESPECT & SAFETY Everyone partaking in the event must be treated with respect, and safety is being highly prioritized. Anyone violating this can and will be required to leave. Please contact the organizer if you feel something is wrong.

Een wandeling voor vaders die het zichzelf gunnen om even te willen uitwaaien én de diepte in willen. We lopen samen door de natuur, ontmoeten elkaar en delen wat er echt speelt — als vader, als man, in je werk of gewoon in je hoofd. Niets moet. Er is geen afleiding, alles draait om verbinden en inspireren. Onderweg doen we een aantal oefeningen, luisteren we naar elkaar en stellen we de vragen die er toe doen. Een ideaal moment om even tot jezelf te komen — die ontspanning neem je sowieso mee naar huis. **Past dit bij jou?** Je hoeft geen antwoorden te hebben. Alleen de bereidheid om eerlijk te zijn — naar jezelf en naar de andere vaders om je heen. **Wat kun je verwachten?** * Een kleine groep van max. 8 vaders * Een mooie route op de Veluwe * Goede gesprekken en oefeningen onderweg * Ruimte voor jouw verhaal * Koffie/thee en een snack na afloop Kortom: een wandeling waarmee je investeert in jezelf en je vaderschap. duur: 10:00-12:00 uur / investering is wat jij het waard vindt locatie: rondom Arnhem op de Veluwe

📍 Meeting point: **Nijmegen Lent Station** (⚠️ not Nijmegen Centraal!) 🗓 **Saturday, March 28th, 2026** 🕑 **14:00** After starting our journey through Dutch history with **Prehistory**, it’s time to move forward to the **Roman era**. And when we talk about Romans in the Netherlands, there is one unavoidable place to go: **Nijmegen**, the oldest city in the country, founded by the Romans as **Noviomagus**. We’ll start from the other side of the river Waal and walk towards the historic city centre, combining **river landscapes, green parks and urban history**. Along the way we’ll explore how the Romans conquered large parts of what is now the Netherlands, built forts and military camps along the Rhine (the *limes*), and established their first real city here. This walk is about **stories, traces and layers of history**—and about seeing Nijmegen through Roman eyes. 🥾 **The walk is about 5 km** and will take us through nature, parks and the city while discovering the Roman past of Nijmegen and the Netherlands. *** 🍺 **Post-walk drinks at Cafe De Zon** After the walk we’ll stop at **Cafe De Zon** to relax and have a drink together. It’s a perfect moment to chat, share impressions from the walk and wind down. If you like beer, you’ll also have the chance to try **Oersoep**, a local craft brewery from Nijmegen known for its creative and experimental beers. Of course, other drinks are available as well. *** A walk through **Roman history**, beautiful riverside views, and a relaxed drink afterwards — a perfect **Pastime afternoon**.

Join us for a flat 2.6 mile hike along the Alum Creek Trail from the rear parking lot of the Easton Hilton Garden Inn to the Strawberry Farms Park and back. This scenic trail along Alum Creek is a gem. Come and hike it with us!

**Midwest Funk Jam – OhioLockers** A monthly gathering dedicated to **locking, popping, and funk dance culture** in Columbus. We start with a **free fundamentals**, then open the floor for a **dance session and cypher**. Whether you're new to funk styles or an experienced dancer, this is a space to learn, practice, and connect with the Midwest dance community. Hosted by **FlexyStu & DJ Vix** 📍 Oracle Bar 🗓 Last Thursday of every month ⏰ 8:30 PM – 10:30 PM 💸 Free entry 🅿️ Free street parking right outside 🔞 18+ 8:30 – Free Locking & Popping fundamentals class 9:00 – Open dance session & cypher All levels welcome. **Session → Cypher → Funk** IG@Ohiolockers [https://www.facebook.com/groups/1426377732280863/?ref=share&mibextid=NSMWBT](https://www.facebook.com/groups/1426377732280863/?ref=share&mibextid=NSMWBT)

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** [https://youtube.com/live/fD2cYeKp_UU?feature=share](https://youtube.com/live/fD2cYeKp_UU?feature=share)

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Join us for an engaging panel discussion on **AI Agentic Coding** and how autonomous AI systems are transforming the way software is built. Experts in AI, software engineering, and developer tools will share insights on how agentic AI—systems that can plan, reason, and execute coding tasks—is reshaping modern development workflows. The discussion will cover topics such as AI-assisted development, productivity gains, challenges around reliability and governance, and what the future of software engineering may look like with AI agents as collaborators. Whether you’re a developer, tech leader, or AI enthusiast, this session is a great opportunity to learn, ask questions, and explore how agentic AI is redefining coding

***Join us for a behind-the-scenes look at Wyandotte Winery!*** Discover where local wines are crafted, and gain insights into the making of small-batch wines. Learn about the interesting history of Wyandotte Winery and the unique aspects that make it a local gem. **Highlights:** • Guided tour of the wine cellar and details on our wine-making process • Historical overview of Wyandotte Winery - and updates on What's New at the winery! • Opportunity to taste our current wine selection • Ask questions and interact with the Wyandotte team **Start Times**: 1:00 PM, other times by request. **Cost:** $10 (includes 1 glass of wine). Pay at the door **Parking:** usually best to park one block down the road in the church parking lot. 2 minute walk. **Note:** Touring the cellar requires taking one flight of stairs. After your tour, feel free to join us for a Fired Up Pizza or winery small plate! Whether you're a wine enthusiast or just curious, this tour will enhance your appreciation for wine and small-batch winemaking. Cheers!!![🍷]()