Programming in R

Are you an **expat** in **Utrecht** and do you want to **learn how to swim?** Look no further! Dive into **personalized swimming lessons** with **Your Personal Swim Coach**. Whether you’re a beginner looking to learn the basics or an advanced swimmer seeking to refine your technique, our expert coaches offer **tailored sessions** that fit your needs. **De Kwakel** is a great pool close to the city center, has free parking, and is easy to reach by bus. It's an **amazing learning environment!** **Don't wait any longer:** **[Sign up for a Try Out Lesson!](https://www.your-personal-swim-coach.nl/product/try-out-adult-swimming-lesson/)** Want to learn more first? Go to our **[website](https://www.your-personal-swim-coach.nl/)** or **[schedule a call!](https://calendly.com/ypsc/new-meeting)**

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.

#This meetup is around a third-party organizer (Focus Filmtheater): you can either purchase your ticket online or right before the session# **Title**: A Family **Language**: Dutch **Subtitles**: English **Length**: 90 min **Director**: Mees Peijnenburg **More info**: https://www.focusarnhem.nl/agenda/english-subs-a-family/ **Ticket link**: https://www.focusarnhem.nl/tickets/143039/ **Synopsis**: An emotional family drama by Mees Peijnenburg (*Paradise Drifters*), about the impact of their parents’ divorce on two teenagers, seen from their own perspectives. With Carice van Houten. Fourteen-year-old Eli and sixteen-year-old Nina are both suffering from the breakdown of their parents’ once-loving marriage. In the custody battle, the siblings must express their wishes, fears, and feelings to a judge. While Nina wants to leave the family as quickly as possible, Eli longs for everything to return to the way it was. Their desires are miles apart. *A Family* is told in two chapters that follow the same three-week period: first from Nina’s perspective, then from Eli’s. These mirrored timelines show how the same moments can be experienced, felt, and understood in completely different ways. Eli and Nina retreat into their own worlds until they realize they are both searching for the same love, recognition, and comfort. The film had it’s world premiere at the Berlin Film Festival in February. The film was shown in the Generation 14plus program section, dedicated to films with mature themes that are also suitable for a teenage audience. **How it works**: I will be at Focus around 18:30, where we can meet before the movie starts. You can message me to find us. Screening starts at 19:00. After the movie, we can have a drink together. Hope to see you soon!

Do you love books, or have you been wanting to get into reading more? Then this might just be the event for you! At this book swap everyone brings one or a few books they no longer need. We put them all out on the table and from there it's up to you, see if something catches your eye and take home whatever you'd like to read next. Any language is welcome, so bring whatever is sitting on your shelf! At the end of the evening you can take back the books you brought that weren't picked up, or leave them with the organiser who will donate them to a local secondhand shop. This event is organised on a weekday evening as a nice little break in the middle of the week to meet fellow book lovers over a good drink. **Bonus for the walkers 🚶‍♀️** After the event the organiser will walk back to Utrecht Centraal for anyone who wants to join. It's a relaxed 25 to 30 minute walk alongside the water for some extra movement and a calm way to end the evening. ⚠️ If you're unsure whether you can make it, please free up your spot for someone else.

Hi all! 🙂 On Wednesdays we welcome you to practice languages! If you want to practice a specific (uncommon) language, please send us a message so we can find some conversation partners for you on our mailing list! We hope to see you in Café Marktzicht! In the last year we had tables for the following languages: * Dutch * English * French * Italian * Spanish * Turkish\* * German\* * Portuguese\* * Danish\* * Norwegian\* * Russian\* * Arabic\* * Chinese\*\* * Japanese\*\* * Indonesian\*\* * * Most likely, but not every week present. \*\* - Rather rare ;-) If your language is not in this list, please let us know! We have a large database of Language Cafe visitors speaking 56 different languages! We might be able to connect you with a person that does speak the language you want to practice. In case you are not in our database yet, please use this form: http://goo.gl/forms/oSCn9Dn8m8

Fronteers is 8 april te gast bij [Abra](https://abra.nl) in Utrecht. Met twee Nederlandstalige presentaties, avondeten vooraf en een borrel na. De meetup vind plaats in The Hub van de Jaarbeurs Innovation Mile, naast Utrecht Centraal. *This meetup will be in Dutch.* **Programma** * 18:00 inloop met avondeten * 18:50 introductie Fronteers en Abra * 19:00 The forever quest for accessibility awareness door Darice de Cuba * 19:45 korte pauze * 20:00 Bruggen bouwen in de wereld van toegankelijkheid door Jan Jaap de Groot en Mike Slinkman * 20:45 borrel * 21:30 einde **Avondeten** Om voedselverspilling te voorkomen, geef tijdig door dat je de meetup bijwoont. Je kunt allergie- en dieetinformatie doormailen: *arjan AT fronteers.nl* **Presentatie: The forever quest for accessibility awareness** *Spreker: Darice de Cuba* De presentatie is in het Nederlands. **Presentatie: Bruggen bouwen in de wereld van toegankelijkheid** *Sprekers: Jan Jaap de Groot / Mike Slinkman* Snappen hoe de "accessibility bridge" werkt is essentieel voor het bouwen van applicaties die daadwerkelijk toegankelijk zijn. In deze sessie leer je: \- Hoe de toegankelijkheidsbruggen werken bij webbrowsers\, native apps en cross\-platform apps \- Waarom dezelfde code zich anders gedraagt op Android en iOS \- Veelvoorkomende valkuilen waarbij overbrugging mislukt of onverwacht gedrag vertoond **Over Darice de Cuba** Darice werkt als web developer bij een onderwijs onafhankelijk nieuws platform. Daarnaast houd ze zich graag bezig met inclusie en toegankelijkheid door het schrijven van blogs en geven van presentaties. Darice is al 18 jaar laat-doof. De combinatie van haar skills als web developer en ervaringsdeskundigheid als o.a. (laat) doof persoon geeft haar een uniek inzicht in inclusive design. Daarnaast houd ze zich ook serieus bezig met straatfotografie en houd ze ook een persoonlijk food guide van Den Haag bij. 🖥 https://www.darice.org/ 🍕 https://www.thehaguefoodguide.com/ 🐘 https://mastodon.social/@Darice 📷 https://www.instagram.com/darice/ **Over Jan Jaap de Groot** Jan Jaap ontwikkelt al ruim 10 jaar (toegankelijke) apps. Sinds 2018 heeft hij zich gespecialiseerd in het toegankelijk maken van apps door ondersteuning in te bouwen voor diverse toegankelijkheidsfuncties. Hij leidt de W3C Mobile Accessibility Task Force, is voorzitter van de Stichting Appt en medeoprichter van Abra, waar hij software ontwikkelt om automatisch toegankelijkheidsfouten in apps te detecteren. **Over Mike Slinkman** Mike ontwikkelt al meer dan 5 jaar (toegankelijke) apps. Sinds 2023 werkt Mike bij Abra, waar hij zich heeft gespecialiseerd in het toegankelijk maken van apps. Naast het ontwikkelen van apps, ontwikkeld Mike ook toegankelijke websites, en adviseert hij bedrijven op het gebied van toegankelijkheid. **Routebeschrijving** Het adres van de locatie is [Jaarbeursplein 6, 3521 AL Utrecht](https://048-abra.trakqit.com/?u=f0fb0a9ca164a636076e51c54&e=a99d876d68ba6747b5bc3dbb529248a4). De naam van de locatie is 'The Hub', onderdeel van de Jaarbeurs Innovation Mile (JIM). Deze bevind zich op de 6e verdieping van het Beatrix theater. We raden aan om met het openbaar vervoer naar Utrecht Centraal te komen. Het is slechts [2 minuten lopen](https://048-abra.trakqit.com/?u=f0fb0a9ca164a636076e51c54&e=a99d876d68ba6747b5bc3dbb529248a4) vanaf het station naar de locatie. Route vanaf Utrecht Centraal: 1. Loop naar de uitgang aan de Jaarbeurs-zijde. 2. Neem de lift, roltrap of trap naar beneden. 3. Loop rechtdoor tot je links de hoek om kunt (bij restaurant Pleyn). 4. Loop nog een klein stukje rechtdoor tot de draaideuren met de tekst 'Beatrixgebouw'. 5. Ga door de draaideuren naar binnen. Bij binnenkomst kun je links of rechts de lift nemen naar de 6e verdieping. 6. Loop vervolgens rechtdoor de lift uit naar het midden van de ruimte. Daar zie je de ingang van de JIM. Hier zal een van ons de deur voor je open doen :) 7. Op de vloer staan gele stippen, volg deze naar The Hub, waar de borrel plaatsvindt. Er is een lift en er zijn geen drempels. Rolstoeltoegankelijke toileten zijn helaas op een andere verdieping. Voor alle informatie en parkeerinformatie: [https://www.jaarbeurs.nl/en/bereikbaarheid/toegankelijkheid](https://www.jaarbeurs.nl/en/bereikbaarheid/toegankelijkheid)

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.

🎭 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 Wednesday Wonders! 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 19:30h. Bar open 19:00 📍 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/)

🎭 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/)

'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

#This meetup is around a third-party organizer (Lux Nijmegen): you need to purchase your ticket online before # **Curious about the best short films of the moment? Go Short is back at LUX Nijmegen!** Since the festival schedule is huge, I picked out two blocks from the European Competition for the meetup. **Here is the plan:** * **19:15 – 20:45 \| Block 1: EU Comp 3** https://www.goshort.nl/en/festival-program/block?programId=2982&viewingId=5093 * **21:15 – 22:45 \| Block 2: EU Comp 4** https://www.goshort.nl/en/festival-program/block?programId=2983&viewingId=5102 Feel free to drop in for just one of the blocks, or stay for the double feature. **Ticket Info:** Tickets must be purchased online in advance. Be aware that the EU Competition blocks tend to be popular and might sell faster! If you want to join for both blocks, I highly recommend getting a **Day Ticket**. Otherwise, you can just book a single ticket for the specific block you want to see. **Tickets: https://www.goshort.nl/en/tickets** **Meeting point:** I will be at LUX right by the entrance, from 18:30 and during the break between the two screenings so we can meet before each block starts. **More info**: https://www.goshort.nl/en/go-short-festival-2026 Hope to see you soon!

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/

**We'll have two meetings covering AI - this second one is for Positron** We will review which AI features are linked in for Positron, and how to use them. **Location:** The meetup will be at SPARK's ([https://annarborusa.org/](https://annarborusa.org/)) Ann Arbor site: [SPARK HQ (Ann Arbor)](https://urldefense.com/v3/__https://www.google.com/maps/place/Ann*Arbor*SPARK*Headquarters/@42.2792515,-83.7447708,17z/data=!3m1!4b1!4m5!3m4!1s0x883cae3effe193cb:0x5296a53db2a282bf!8m2!3d42.2792515!4d-83.7447708?hl=en-US__;Kysr!!HXCxUKc!3EEdBNXRJKknP6LCGkZetSuEsdtChFojQnOVitFUC5C0fyilqXEbiMstT9ajBR3Cw-55qoFkrElCjQvjMdTxUw$). There is on street parking, and parking at local structures. **This will be a hybrid meeting - the Zoom session starts at 6:30 PM.** **Time:** The doors will be open at 6:00, with pizza and beverages provided. We will have a meet-and-greet-and-pizza session, and then at 6:30 we'll have a presentation. **Zoom information:** https://us06web.zoom.us/j/86862937929?pwd=woa95D1r85dobjqxQ07NfBLNdTa9hc.1 Passcode: 705462 **If you can't get in, please call me at: 734 223-3307** **Document source:**

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.

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!

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

**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 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD