Service Mesh

Dear Java developer, We would like to invite you to a physical Java Meetup powerd by Craftsmen in Apeldoorn about Maven's Hidden Secrets and Treasures to speed up your build by Ko Turk and Building maintainable Spring Boot apps with Clean Architecture by Michel Schudel **Location** STOOM Vlijtseweg 114 7317 AG Apeldoorn Movie for route: [https://www.youtube.com/watch?v=i8XwbB6APsM](https://www.youtube.com/watch?v=i8XwbB6APsM) Maps: [https://maps.app.goo.gl/bHihYysxXp71aQjP7](https://maps.app.goo.gl/bHihYysxXp71aQjP7) **Program** (UTC +1) 17:30 Doors open 18:00 Food & networking 18:45 **Building maintainable Spring Boot apps with Clean Architecture** by Michel Schudel 19:30 Break 19:45 **Maven's Hidden Secrets and Treasures to speed up your build** by Ko Turk 20:30 Networking & drinks 21:15 Doors closed **Building maintainable Spring Boot apps with Clean Architecture** Clean Architecture is about separating concerns within your application to keep it maintainable, scalable, and testable. Some call it onion architecture, others call it hexagonal, but in the end they all aim for the same goal: protecting your domain logic from the messy outside world. But how does this work in practice? In this session, we'll build a Spring Boot application together using the principles of Clean Architecture. We'll use the Spring Boot Test framework for clean integration tests and ArchUnit to ensure our squeaky-clean application stays that way by enforcing architectural boundaries. After this session you've learned what Clean Architecture is, and how you can leverage your own applications with it. **Maven's Hidden Secrets and Treasures to speed up your build** Ahoy, Maven Pirates! Gather around, for I have a treasure of knowledge to share with ye salty dogs. ☠️ Ye be hearin' about this thing called 'Build Caching'? It’s a secret weapon that can make yer ship (build) sail faster than a seagull catchin' the wind! How does it work, ye ask? Well, add an extension to the project file in the "pom" ye mateys call it. But don't think it's all smooth sailin' from there. Nay, ye need to do a bit of work on the pipeline too. Arr, we be talkin' about addin' a remote (cache) server to the settings file, and then ye be sayin' goodbye to them extra (rum with) coffee breaks. ☕️ By makin' a few simple tweaks, we give yer build a mighty fine boost! And ye be learnin' all about them Maven lifecycles too! We will show how to improve yer tests and run them in parallel, like enterin’ a ship. ⚡️ But hear me out, me hearties, for this be no ordinary treasure of knowledge. Nay, this is reserved for a select few, the likes of ye who be joinin' this session. So, keep yer lips sealed, and don't be tellin' a soul about this secret, aye? **Ko Turk** Ko Turk is a Software Architect, Java Engineer, and Community Builder with more than 15+ years of experience in development, architecture, speaking, and building communities. Voxxed Days Amsterdam conference organiser --> [amsterdam.voxxedays.com](https://amsterdam.voxxeddays.com/) JUGLeader @CodeLabJUG [Green Software Champion](https://champions.greensoftware.foundation/champions/ko-turk/) JFall Program Committee Member, DevoxxBE Community reviewer ‍ Working @CodeLab, assignment @Rabobank. Conference speaker, speaks about everything around Java (ok and Typescript ). ➡️ Website: [http://koturk.nl/](http://koturk.nl/) **Michel Schudel** Michel Schudel has been a passionate Java developer since 1998. Since then he has seen the good, the bad and the ugly in Java land. He loves to share his adventures in Java Land so you can learn from his experience (and more importantly, his mistakes!) **Costs**: none

**3D Workshop** * **Ontwerpen met Fusion360** * **Scannen in 3D** * **Het gebruik van 3D printers** **Je bent nu welkom in de nieuwe locatie NewTechPark** Je kunt ook online aan deze fysieke bijeenkomst deelnemen. De bijeenkomst is dan op de locatie te volgen. Als je [hier](w.j.put@hccnet.nl) vooraf een mailtje stuurt kun je dinsdagavond tussen 19.00 en 20.00 uur inloggen met Jitsi voor vragen, of ter kennismaking met hcc!3D. Online neem je deel aan de bijeenkomst met [https://wij.hcc.nl/3D](https://wij.hcc.nl/3D) [(Alleen toegang als je zichtbaar bent met voor- en achternaam. )](https://wij.hcc.nl/3d)

You don’t have to build your business alone. During our Coffee Meetup at Kweek Foodbar, we bring together entrepreneurs, startups, and professionals from Flevoland to connect, share experiences, and grow their network. Some of the most valuable conversations and collaborations start in an informal setting. Take a moment away from the daily hustle, enjoy a good cup of coffee, and connect with other entrepreneurs from the region. 📍 Kweek Foodbar, Zeewolde Would you like to join us? **[Sign up via the link](https://event.inchecksysteem.nl/event/4c3d7262bdb8eb9d/shop/e6ef3f1c928e25c0)**[ ](https://event.inchecksysteem.nl/event/4c3d7262bdb8eb9d/shop/e6ef3f1c928e25c0)and we will reserve a spot for you. We look forward to welcoming you. ☕🚀

We delen onze doelen en maken plannen voor de komende week. Iedereen is welkom. We kijken er naar uit om jouw verhaal te horen.

Is public speaking something you’ve always wanted to learn? Then you’ve come to the right place! Experience a safe and playful environment at U-Speak Toastmasters where you can develop your public speaking, communication, and leadership skills! ## **Welcome to U-Speak! Toastmasters** Join our vibrant community at U-Speak!, where internationals and Dutch locals from Utrecht and its surroundings come together. U-speak! Toastmasters is a welcoming, safe, supportive and playful environment where you can work on your public speaking, communication and leadership skills! ## **Discover our meeting experience** Curious about what happens during our meetings? Here’s a glimpse into a typical evening at U-Speak! Our gatherings feature a lineup of three prepared speeches, engaging evaluations and impromptu speaking sessions. At U-Speak!, every member gets their chance to shine. Whether you’re delivering a speech, providing feedback, or stepping up for impromptu speaking, our supportive environment ensures that everyone’s voice is heard and valued. * ⏰ Time: 19:15 - 21:30 (7.15pm to 9.30pm) Walkin at 19:15; Start of the meeting at 19:30 * 🌐 Venue: Room 8, Top Floor, Pub Florin, Utrecht * 🙋🙋‍♂️🙋‍♀️Attendance: Typically, 15-20 people attend each meeting Many of our club members are not on Meetup, so the number of people attending as indicated here is not reflective of the actual number of people attending on a night. * 🙋🙋‍♂️🙋‍♀️ Guests are welcome; rsvp is encouraged *To maintain the high quality of our meetings and ensure all members have sufficient speaking opportunities, we've established a waitlist for new members. This allows us to provide the best possible learning experience for everyone. We're happy to add your name to our list, and we encourage you to join us as a guest in the meantime.*

Every Tuesday, the group 024 Waalrunners goes for a run at a distance of between 5km - 10km. Everyone is welcome to join, you just need to turn up at 20:00 on Tuesday in front of Cafe De Hemel. There are different routes every time, and the group welcomes all new people to join them. After the run we usually stay for a drink at De Hemel. https://waalrunners.activedates.nl https://chat.whatsapp.com/CRXG7x9HQUw4Q1qCrNzXn4?mode=ems_copy_t https://www.facebook.com/024waalrunners-710731759317504

Hi Everyone, This is our weekly open hackerspace evening! Usually from 19:00 :-) Feel free to drop by, come and nerd with us! See this Tuesday! We're in room 126, ring the room number and we'll open the door. We're located on the first floor

Wil je beter begrijpen hoe moderne cybersecurityoplossingen werken en hoe Zero Trust, detectietechnologie en AI concreet worden toegepast door **Fortinet**? Tijdens deze kennissessie op **18 maart** nemen experts Mario Maas en Eric van Alebeek je mee in de belangrijkste ontwikkelingen binnen het Fortinet‑portfolio, praktisch, inhoudelijk en direct toepasbaar. Zij laten zien hoe Fortinet technologie inzet in de praktijk: van detectiesystemen tot door AI versterkte beveiliging die verweven zit door de hele Security Fabric. **Agenda:** * Introductie + update Fortinet \- Detectie systemen: FortiDeceptor en Mail Workspace * Zero Trust (ZTNA/SASE) * Fortinet AI toepassingen *Het programma zal deze avond als volgt zijn:* * Vanaf 17.15 u: inloop * Rond 17.30/18.00 u: eten * 18.30 u: start kennissessie * 20.00 u: afsluiting We zien jullie graag dan!

Willkommen bei der Cyber Security User Group "Purple Elbe" in Hamburg. Am **Mittwoch**, 18.03.2026 19:00 Uhr, treffen wir uns bei glueckkanja AG in Hamburg. Vortragssprache: **Deutsch** **Agenda** * Begrüßung * Security News * **New Tool: XDRConverter** *XDR Custom Detection as Code - Fabian Bader* * **All you need to know about Sentinel data lake, graph and more** Tech Dive: Sentinel Data Lake - Von Ingestion-tiers über KQL-Jobs bis zum Blast Radius mit Sentinel Graph. Wir klären: Archive vs. Data lake, sparen massiv Kosten bei der Langzeitspeicherung und sprechen über Data Protection Challenges. *\- Marvin Rose* * Gemeinsamer Austausch (mit Pizza und Getränken für alle vor Ort) Wir freuen uns auf deine Teilnahme. Die Teilnahme ist hybrid möglich. **Anreise** Mit den Öffentlichen an der Sierichstraße (U3) aussteigen oder wenn Ihr mit dem Auto kommt gibt es im "Parkhaus Krohnskamp Hamburg" Parkplätze in der direkten Umgebung.

## 🎨**Activity for EXPATS & English Speakers** ☕ Are you an art enthusiast living in or around **Amersfoort, Hilversum, Utrecht, Nieuwegein, IJsseltein, De Bilt and the rest of cities of the Utrecht's province** who love painting or drawing? Maybe you've felt the joy of creating but struggled to find others who share your passion and speak **ENGLISH**? **You're not alone! 😉** ✨✨✨✨✨✨✨ ## 🖌️**About this event** You will meet other Art Lovers like you to Draw, Paint and have some drinks Together ! Our events are not just about sketching or creating art—they’re about building connections. Every two weeks, we meet at a café to have a relaxing time drawing a painting. Please keep on mind that **ENGLISH i**s the official language we will use to integrate everyone in our conversations. ⭕⭕⭕➡️ **IMPORTANT ⬅️** ⭕⭕⭕⭕ ### 👩🏻‍🎨**Book formally your Seat 🪑via [WHATSAPP](https://bit.ly/3BXXE0f)** **If you want to confirm officially your attendance and separate your seat🪑. Book your seat in meet-up, and contact us via [WHATSAPP HERE](https://bit.ly/3BXXE0f) to receive more information on the address of our activities.** **Thanks a lot for your understanding!** 💐🥰 ✨✨✨✨✨✨✨ ### 👩🏻‍🎨**How Does It Work?** This event is simple, this initiative takes 2 Hours. Most of the participants use pencils, water pencils or watercolours. Main aim is to socialize while we draw. There will be plenty of time to talk and get to know each other. We have to mention that this event is suitable for all levels. Many have started to draw in our event actually. Also it is very important that you **[JOIN US AT OUR WHATSAPP COMMUNITY](https://bit.ly/3BXXE0f),** to stay up to date on our upcoming events and participate in our Drawing and Painting Contests! **👉: [https://bit.ly/3BXXE0f](https://bit.ly/3BXXE0f)** 🍀 ✨✨✨✨✨✨✨ ### ☕**Where?** We will meet in different cafes mainly in the *center of Amersfoort ( and some occasions in other cities around)*. I will inform you of the exact place some days in advance this event. The place will depend on the number of attendees. ✨✨✨✨✨✨✨ ### **🎟️ What is included?** 🟢 **2 HOURS TO HAVE FUN!** 🟢 **15 mins warming-up creative activity and paper material**🖌️🎨 🟢 New friendships and **conversations in ENGLISH** in a relaxed atmosphere 🟢 **Souvenir picture** with you and the rest of Art Lovers 📷 🟢 Exclusive **access to our Art Lovers Community** on which you will receive: ***\~\~\~ Drawing challenges,*** ***\~\~\~ Training content,*** ***\~\~\~ FREE Entries only to members*** ***\~\~\~ Drawing Competitions*** 🟢 Time to **create alongside fellow artists and amateurs** 🟢 The freedom to **work at your own pace** 💃🕺🎈 ✨✨✨✨✨✨✨ ### 🖼️**Art Materials?** Bring your own practical art materials to be adaptable to sketch on a coffee table. Like your sketchbook, pencils, watercolor, markets, pencils, your Tablet..etc ✨✨✨✨✨✨✨ ## **See you to Paint, Draw, and drink together!🌟☕🍷🍪🍰**

Hello, Kotlin enthusiasts! Our next NLKUG meetup is happening on March 19th at the adesso Office, located at Wonderwoods, Jaarbeursboulevard 294, 3521BC Utrecht! Join us for an evening filled with 2 great talks, networking, and a lively panel discussion on some of the hottest topics in the Kotlin community. This event is RSVP-only, and seats are limited to 60 attendees, so be sure to secure your spot early. You can also let us know if you have any dietary preferences when you RSVP. This meetup is a collaboration between adesso, bol and Flock. bringing together some of the best minds in the industry. A big thank you to our fantastic partners for making this event possible! **📍 Location:** adesso Office, Wonderwoods, Jaarbeursboulevard 294, 3521BC Utrecht **🕒 Timeline:** 17:00 – Doors open 17:30 – Dinner 🍕 18:25 – Welcome 🎙️ 18:30 - Akif: Pair Programming with AI 💻 19:15 - Break 19:30 - Pim: Type Safe Tax Calculations 💻 20:15 - Networking and Drinks 🍻 \*\*\*\* **Talk 1: Pair Programming with AI: Building Software in the Age of Coding Agents** *Mehmet Akif Tütüncü - Engineer @ bol* AI coding agents are rapidly changing how we write software, but what does that look like in a real Kotlin project? In this session, I'll share my experience building an open-source Kotlin DSL library primarily by pair programming with AI. After defining the core design by hand, I relied heavily on coding agents to expand features, refactor code, generate tests, draft documentation, automate publishing, and explore alternative designs. The project tapik, a type-safe DSL for defining HTTP APIs in Kotlin, became more than a library. It became an experiment in AI-augmented engineering. * What changes when AI becomes your primary collaborator? * Where does it accelerate you? * Where does it confidently fail? * What skills become more important? Through concrete examples in Kotlin, I'll show how AI shifts the engineer's role from "code writer" to architect, reviewer, and decision-maker, and what that means for our profession moving forward. \*\*\*\* **Talk 2: Type-safe tax calculations; Using Context Parameters** *Pim van Gurp - Software Engineer @ Flock.* In this talk we’ll explore how two powerful Kotlin features (context parameters and Arrow's Raise DSL) combined to push time and error rules into the type system. Context parameters allow us to change contextual input while keeping the call side consistent. This allows us to calculate income tax with X % in 2025 and Y % in 2026. Furthermore, Arrow's Raise DSL gives us typed, structured error handling without exceptions, making every failure path explicit. Which enhances this typed domain even more. No tax expertise required, just bring your joy for type systems.

Join a casual online hour to share you, your brand and business, and learn more about other business owners, locally and globally. Join and share your brand, products/services, and about you. Expand your visibility. Every session will close with gratitude and a mini creative activity, so have a pen and paper, tablet, or something available with which to write/create/draw. **RSVP here via EventBrite: [Event link](https://www.eventbrite.nl/e/you-and-your-brand-a-casual-networking-hour-tickets-1984283125243?utm-campaign=social&utm-content=attendeeshare&utm-medium=discovery&utm-term=listing&utm-source=cp&aff=ebdsshcopyurl)** *-* *The only requirements are a minimum age of 18 years old,* *and at least three attendees to make it a worthwhile hour for everyone.*

**From Strangers to Friends – Community Dinner 🍽️** Join us for a special edition of *From Strangers to Friends*: a cozy community dinner where expats and locals come together to share food, stories, and meaningful conversations. Entrance is free, simply bring a dish from your country to share with the group. After you sign up, we’ll briefly coordinate who brings what so we don’t end up with only desserts 😉. Please bring a small note with the ingredients of your dish so everyone knows what they are eating. If you have any dietary restrictions, let me know. Come alone if you like, many people do! Or bring a friend! You’ll leave with new connections and great conversations. During the dinner, question cards will be on the tables to spark deeper and more interesting discussions. 📍 **Location:** Café Libertas, Klarendalseweg 477-1, Arnhem 🚶 **Distance:** 7-minute walk from Velperpoort station 🕕 **Gathering:** 18:00 🍽️ **Dinner starts:** 18:30 **Entrance:** Bring a dish to share. Curious what our events look like? Check the photo albums in this group (visible on desktop).

Come over to the Ducosim game fair in Amersfoort. For a small fee (or become a member) many publishers are ready to demo their published games. Next to that you can meet up and network with game designers, playtest their games and bring what you are working on and put it on the table. More details: https://www.ducosim.nl/

Join the CONNECTED Westerville Mastermind Group for a dynamic afternoon of B2B networking! This event is perfect for professionals looking to expand their business connections, share insights, and foster collaboration within the community. Whether you are a seasoned entrepreneur or just starting out, this event offers a valuable opportunity to exchange ideas, build relationships, and grow your network in a supportive environment. Connect with like-minded individuals, explore potential partnerships, and discover new opportunities for professional growth. Don't miss out on this chance to enhance your business network and take your career to the next level with CONNECTED Westerville Mastermind Group! We meet the 4th Monday of every month from 11am-1pm. Welcome and general networking from 11am - 11:30am with core meeting 11;30 - 12:30 and a final round of networking from 12:30 - 1pm.

Builders, creators, architects, admins, consultants - come one, come all. This one's for you. We're bringing a little friendly competition to the Columbus ServiceNow community while highlighting the cool things people have built on the platform. Five presenters will take the stage to showcase something they've built, solved, designed, or imagined on the ServiceNow platform - and a panel of judges (plus YOU, our amazing audience) will score them live. So basically, America's Got Talent but make it ServiceNow's Got Talent. Bring a notepad if you'd like 'cause you'll definitely be learning something new. Each presenter gets 10 minutes max to wow the crowd with: • A demo • A real-world business solution • A bold idea • A UX transformation • Or a creative use of the platform Judging Criteria: 🏆 Business Value 🚀 Innovation ✨ User Experience This event is about celebrating ideas, sharing knowledge, and showing how ServiceNow can drive both business impact and meaningful user value. Come learn. Come support. Come get inspired. Refreshments and bites will be provided. And maybe next time… you’ll be on stage.

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **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

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

WQC has weekly Thursday night social nights at the Westerville Java Central. Come and grab a coffee and connect with the community: low stakes, chill environment, and tasty drinks. No registration is required; come as you are.