Extreme Programming

***English invitation*** You are invited to visit the Dutch Deventer Toastmasters. Toastmasters is an organisation where you can develop your public speaking and leadership skills in a safe, positive and inspiring environment. It grows your self confidence and gives your energy a boost. Want to visit us? Send an email to deventertoastmasters@gmail.com ***Nederlandse uitnodiging*** Je wordt van harte uitgenodigd om onze Nederlandse bijeenkomst te bezoeken bij Deventer Toastmasters. Toastmasters is een organisatie waar je je vaardigheden op het gebied van spreken in het openbaar en leiderschap kunt ontwikkelen. Dit doen we in een veilige, opbouwende en inspirerende omgeving. Je zelfvertrouwen groeit en je energie krijgt een boost. Wil jij meedoen? Stuur een email naar Deventertoastmasters@gmail.com

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

**ArnhemJUG** We are excited to announce that we are welcomed by Entrnce for the April meetup. **Agenda** * 17:00 CET walk-in * 17:30 – 18:30 Food and drinks * 18:30 – 19:30 talk: **Better Assertions with AssertJ** by **Tim te Beek** * 19:30 – 19:45 break * 19:45 – 20:45 talk: **Reproducible Builds with Apache Maven** by **Hervé Boutemy** * 20:45 – 21:30 drinks **Better Assertions with AssertJ** Not all testing libraries are equal. Sure they all run your tests, but what happens when they fail? “Expected ‘true’, was ‘false’” won’t help you much. Your choice of library determines whether you can immediately jump to a fix, or first have to debug for more details. And with JUnit 6 and AssertJ 4 around the corner, it's high time for an upgrade! In this talk we'll explore AssertJ, and the fluent assertions API it provides. We'll contrast this to alternatives like JUnit and Hamcrest, and show how subtle differences improve the experience. Now you can finally have unified fluent assertions for all your tests, with a clear path to get there. For existing AssertJ users we will optimize its use to get more expressive assertions and meaningful messages from existing tests. Finally, a quick few OpenRewrite recipes help you apply all these best practices at once, and continuously going forward. **About** **Tim te Beek** Tim te Beek is a staff software engineer at Moderne, which automates software refactoring at scale. He has extensive experience contributing to and presenting on Open Source software within the Java ecosystem. Previously he worked as a consultant specializing in migration engineering and developer productivity. **Reproducible Builds with Apache Maven** Reproducible Builds is listed as a requirement for SLSA security Level 4, to achieve the highest level of confidence and trust in software. Such a level seems far away from achievable practice for normal humans. In reality, most Linux distributions implemented it over the last 10 years. And in the past 6 years, this practice is being extended to Java Open Source projects with great success: more than 6,200 releases from 800 Open Source projects published to Maven Central are publicly proven reproducible (and counting). In this session, we'll demystify Reproducible Builds for Java based on the experience gained while rebuilding these Open Source projects. We'll dig into the tools to improve your Maven builds and check the effective results: the journey is full of great learnings that go far beyond advanced security. **About Hervé Boutemy** Hervé started with Java when it was in beta, built his first Java projects with Make (yes) then Ant: but life changed with Maven 1... Life changed even more when growing from OSS user during working day to becoming an active OSS contributor to Maven 2 during nights and week-ends. Today, Hervé works as Solutions Architect for Sonatype on next steps of the build journey, promoting best-practices around Software Supply Chains. On the OSS front, Hervé is an Apache Software Foundation member and Apache Maven PMC Chair. He's also involved in many advanced projects like CycloneDX, SPDX, sigstore, and Reproducible Builds.

Join us for a fun session of improv theatre in English! A great opportunity to meet new people in Utrecht and learn something new with [Improv Utrecht](https://improvutrecht.nl). Everyone can partcipate, you don't need any experience in theatre nor fluency in English. In this session you will: * Meet fellow international and local players. * Learn the basics of improvisation, a 21st-century skill that is useful in many aspects of life. * Get out of your head. * Enjoy failing. * Play funny and moving theatre games. * Laugh a lot, while surprising yourself and others. Doors open: 19:50-20:00, come in with the others ([SIDE entrance, at the Troelstralaan](https://maps.app.goo.gl/ntLDUqbkDxMHjp7B7)). After 20:01 the door may be closed, but you may find a participant who knows the door code. Workshop: 20:00-22:00 Every Friday except in school holidays Afterwards we have drinks at [O'Leary's](https://maps.app.goo.gl/gL878K1MZf8v5fpm7) pub together ### How to sign up Full details about how to sign up and any other questions you may have can be [found on our website](https://www.improvutrecht.nl/drop-in-workshops/). An RSVP in this Meetup event is not enough! We track attendance by counting the attendants in GrasshopperSignup. If you flag yourself as attending and can no longer make it, please delete your x in the sheet so that someone else can take your spot. If you leave your contact details at the Signup form we will contact you if there is a problem with a drop-in you are scheduled to attend. We also have a WhatsApp group with a variety of members from across Utrecht where we share events and updates. You can find our courses and shows on [our website](https://www.improvutrecht.nl). Participation is pay-what-you-can, but we suggest a donation of €10-20 by cash or Tikkie to help cover costs (location, travel) and show your appreciation for our professional trainers who dedicate their Friday to promoting improv.

**Welcome to our April UX Beers in Antwerp!** This time, we will host our event on Tuesday the 28th of April at Plein Magazijn in Antwerp. [Ariad](https://www.ariadgroup.com/) and [Creative Skills](https://www.creativeskills.be/) sponsor our events. Follow the event online? We stream live via [Youtube](https://www.youtube.com/watch?v=EBqyTDAyQBw) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# UX TALKS **Talk 1:** Design influence, how to get stakeholder buy-in on your ideas and create the design impact you want [Simon Vanleeuw](https://www.linkedin.com/in/simon-vanleeuw/), Product/UX Designer @ iO / Organiser @ UX Belgium For all of you who have taken so much painstaking effort to make a customer centric solution for a client or a stakeholder, just to see your vision being compromised, your worries neglected, or your stakeholders asking you to make changes that make your design alarm bells go off, this is the talk for you. In this talk, Simon is going to share his experience with influencing stakeholders, where he went from changing types and colours to being trusted to make more strategic decisions for a product. Being his honest self, he is going to reflect on some cases where he learned something, where he failed, and what lessons can be drawn from that, so that you're better equiped to deal with this in your day to day work. **Talk 2:** “The broken coffee machine” [Tim Wouters](https://www.linkedin.com/in/tim-wouters-0521033/), CX strategist & service design lead @ iO Services are intricate systems that are hard to get exactly right for your customers. And what appears to be obvious and simple to solve, often hides surprising complexity. In this talk, we explore together what a boring coffee machine can teach us about customer-centric culture and jumping to conclusions. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# SCHEDULE 18:00 - Doors open. Drinks & snacks 19.00 - 19.15 - Introduction to UX Belgium Meetup, announcements 19.15 - 19:45 - Talk #1 19:45 -20:15 - BREAK 20:15 - 20:45 - Talk #2 20:45 - 21:30 - Socialize \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# SLACK CHANNEL We have our own UX Belgium slack channel. [Come join us and say hi!](https://join.slack.com/t/ux-belgium/shared_invite/zt-1bjpnuiog-T4Di4flXYPWgbT9KrZ53CA) \*\*\* \#\#\# YOUTUBE CHANNEL All our livestreams and talks are recorded and available on our [UX Belgium youtube channel](https://www.youtube.com/channel/UCno7V18T-EglYXprgrUZQ7A). \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \#\#\# ABOUT UX BELGIUM UX Belgium is a growing community of User Experience (UX) professionals in and around Belgium. Look for these types of events: UX Beers Periodically, we gather at a different agency or venue to drink beers, network and listen to speakers on various themes in the world of UX and digital design. UX Antwerp: Each last Tuesday of the month UX Brussels: Each second Tuesday of the month, 4x per year UX Workshops Now and then we organize events to dive deeper into specific skills and techniques in UX. These are smaller, hands-on workshops designed to boost your UX toolbox. \*\*\* The UX Belgium Meetup Team

## Details **What is Toastmasters?** Toastmasters International is a nonprofit educational organization that’s been empowering people to become confident communicators and leaders since 1924. Worldwide, there are more than 266,000 members in over 14,200 clubs in 150 countries. In the Netherlands, there are over **40 clubs** across the country, including those in major cities such as Amsterdam, Utrecht, and Rotterdam. This network of clubs and their learn-by-doing program is sure to help you improve. You can visit Toastmasters clubs as a guest or become a member. **What does a meeting look like?** Some of the members give short, prepared speeches, which other club members later evaluate. A typical meeting also includes short impromptu speeches. In this improvisation part of the meeting, everybody gets a chance to speak, including guests, if they wish. We usually end the evening with a drink at the bar. **How do I become a guest at a meeting?** It’s easy! Simply RSVP for one of our upcoming meetings here on Meetup to let us know you’re coming. If you have any questions, contact us at [utrechttoastmasters@gmail.com.](http://utrechttoastmasters@gmail.com./) If you visit and like us, we can talk about membership! **Additional information** Our cozy venue has a maximum capacity of 30 people - perfect for an engaging. Please be on time to grab a seat and mingle before the speeches begin!

De 38ᵉ monthly meetup van [Nimma.codes](https://www.nimma.codes/). Elke laatste dinsdag van de maand. Een cross-language user group voor software developers in de regio Arnhem-Nijmegen. **Locatie** OpenValue, Arnhem Let op: het eten is er om 17:30. We starten om 18:00 met de opening. *We houden er niet van om eten te verspillen. Ben je verhinderd? Geen probleem, maar meld je uiterlijk een dag voor de meetup af.* De maintalk zal in het engels zijn. De lightning talks zijn Nederlands. **Programma** * 17:30 - 18:00 Inloop + food/drinks * 18:00 - 18:45 **High-Productivity, High-Performance array programming in SaC - Sven-Bodo Scholz** * 18:45 - 19:00 Pauze * 19:00 - 19:08 **Luca - Booleans** * 19:08 - 19:16 **Dick - Datalakes** * 19:16 - 19:24 **Jeroen - Markdown** * 19:24 - 19:32 **Bas - CoderDojo** * 19:32 - 19:40 **Wilbert - Databases** * 19:40 - 19:48 **Klaasjan - Voeding** * 19:48 - 19:56 Open spot * 20:00 - 21:00 Netwerken en gezelligheid **SaC, an alternative to Python for the performance critical part of novel ML approaches?** Python has taken center stage when it comes to implementing ML algorithms. The root of this success arguably lies in he combination of highly optimised libraries such as NumPy with Python's ease of use when it comes to combining such libraries. In this talk, we discuss some of the limitations of this approach and we propose an alternative that is based on code generation rather than the combination of hardware-specific libraries. **About Bodo** Bodo is a professor in computer science at Radboud University. His research is driven by the desire to bridge the gap between high-productivity programming tools and high-performance computing on heterogeneous many-core systems by means of compilation / code generation technology. He is a key contributor to the functional data-parallel array programming language SaC (www.sac-home.org).

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **Join the Utrecht City Coffee Club and make new friends!** Each meetup brings together 4–6 people for casual conversations over coffee. We use the Groupvibe platform to facilitate the meetup and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com/](https://groupvibe.com/) We’ll share the exact location of the upcoming meetup the night before only if you have bought a ticket or membership plan. **Why this works:** \* Smaller groups make real conversations easier. \* Discover new cafe in your city, together. \* Curated cafe venues with good food and vibe. \* If you hit it off with your group, there’s plenty of time to hang out afterwards. **Note:** RSVPs on Meetup don’t reflect total attendance. Many attendees register directly via our website. The event on [Meetup.com](http://meetup.com/) is only a placeholder. This meetup is organized by Groupvibe, a small team passionate about helping people form meaningful friendships offline.

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 // Guest Speaker Advait Avinash Sowale // Quantifying the Impact of Data Quality on AI-Driven Decision Accuracy // Start networking 9.00pm // End Meetup 9.30pm Greetings, Data Tribes Inc.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

Join other experienced and aspiring agile coaches and professionals to: * develop and practice your coaching skills in a peer-to-peer environment * share current successes and challenges in your work environment and get support from each other * learn from each other, build better relationships and experiment with new ideas ***NOTE:*** Pre-registration is required for this event. **Please arrive 10 minutes early** to check in at the security desk.

Come attend a free in-person seminar where you will find out why you: -Feel isolated -Can't express yourself openly -Get nervous or anxious in front of people -Run out of things to say or feel tongue-tied -Feel introverted -Don't feel comfortable in any social setting -Can't make more friends -Are shy and miss opportunities to connect in a meaningful way And we cover what you can do about any one, some or all of the above. This seminar is the weapon against loneliness, isolation and boredom, come join us! COME TO THIS SEMINAR AND LEARN THE SECRETS TODAY This seminar is brought to you by the Dianetics & Scientology Life Improvement Center. 1266 Dublin Road, Columbus, Ohio 43215

**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: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. 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

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