Extreme Programming

**Liebe Gophers,** am 13.Mai geht es bei uns um eines der wichtigsten Patterns in verteilten Systemen: das **Transactional Saga Pattern**. Wer mit Microservices arbeitet, kennt das Problem – eine Bestellung aufgeben klingt einfach, aber dahinter stecken Payment Service, Inventory Service, Shipping Service... und jeder hat seine eigene Datenbank. Was passiert, wenn mittendrin etwas schiefläuft? Klassische ACID-Transaktionen funktionieren hier nicht. Sagas schon. Unser Speaker Mark Borukhov zeigt, wie das Saga Pattern funktioniert – mit echtem Go-Code, einem E-Commerce-Beispiel und Live-Demo. **Was euch erwartet:** * Warum verteilte Transaktionen ein echtes Problem sind * Saga Pattern: Konzept, Choreography vs. Orchestration * Implementierung in Go – Schritt für Schritt * Pitfalls, Lessons Learned & Q&A Das Event richtet sich an alle – von Go-Einsteigern bis zu erfahrenen Entwicklern. Auch wer Go nicht kennt, aber Microservices baut oder Patterns liebt, ist herzlich willkommen. **Der Vortrag wird auf Deutsch gehalten.** Wir treffen uns um 18 Uhr bei [lynqtech](https://www.lynq.tech/). Mit dem Vortrag starten wir um 18:30 Uhr. Danach wollen wir über Technologien und Erfahrungen plaudern, voneinander lernen, Kontakte knüpfen und einfach eine tolle Zeit miteinander verbringen. Wir freuen uns auf euch! 🚀 *Mark & Anna*

Join Emma and a lovely group of students in this special short course for intermediates or advanced. We will focus on a few specific skills based on training needs from the group: how to strongly start a scene and "yes and the hack out of eachother" etc. Location: Buurtcentrum Oase Time: Wednesdays 20:35-22:20 Price: €160 For whom: people who have done 2 courses or have a experience with the basics Wednesdays 13 May - 17 June 2026 6 lessons 7th session: Show on Sun 7 June (afternoon or evening) lessons 20:35-22:20. Location Buurtcentrum De Oase (free parking and next to train station Zuilen. Teacher Emma Holmes. T**eacher Emma Holmes** Emma Holmes is specialised in Improv, Stand-up Comedy and Storytelling. Emma has a sharp eye for how you can become a pleasant co-player for the other players. You will learn how you don’t have to act funny, but let the fun evolve from the story (finding the game). You will learn to be silly, out of your comfort zone without fear of failing, Presentation skills, active listening skills. And much more. ### About the tickets Improv Utrecht offers 1 or 2 funded courses with 20% discount for people with less finances. Send a message to Marieke van Laar. **Tickets: improv-utrecht.weticket.io** info: www.improvutrecht.nl/

Hi, people! 👋 ❗LAST MINUTE UPDATE: The bar is very full and we might need to change location. We will wait for everyone at the Florin until 9:30 and if we don't find a spot we'll go somewhere else. Thank you for your understanding. 🧠 Tonight we'll go and squeeze our brains at De Florin, a cozy cafe in the Nobelstraat (2, 3512 EN Utrecht). We'll team up and test our knowledge against other teams while we have a good laugh. After the pubquiz is over we will stay and continue enjoying the night together. 🕘 The pubquiz officially starts at 21:30, but by recommendation of the owner the meetup will start at 21:00h to catch a good spot. It's going to be busy! The meetup is expected to end at 11:00pm. 🪙 Please remember that this bar charges 1€/person in order to participate in the Pubquiz. ✨️ Don't forget to follow us on Instagram: @utrecht.lgbt ✨️ See you there! ❤️🌈

\# This meetup is around a third\-party organizer\, Focus Filmtheater\. You can either purchase your ticket online or right before the session\. **Seats are numbered**. We can meet for a drink before the movie. # **Title**: A Useful Ghost **Language**: Thai **Subtitles**: English **Length**: 130 min **Director**: Ratchapoom Boonbunchachoke **More info**: https://www.focusarnhem.nl/agenda/english-subs-a-useful-ghost/ **Ticket link: https://www.focusarnhem.nl/tickets/144298/** **Synopsis**: *A Useful Ghost* is a genre-smashing combination of fantasy, horror, romance, comedy, art house and everything in between. After the death of an employee at a family-run appliance factory, a strange phenomenon occurs. Spirits are possessing their products. This turns out to be good news for March (Wisarut Himmarat), the son of the factory owner, who is deep in mourning following the dust-poisoning death of his pregnant wife Nat (Davika Hoorne). March is reunited with his beloved in the form of a vacuum cleaner. Changing the social conception of ghosts, Nat’s love makes her decide to be of service by getting rid of the useless ghosts. Alongside the tale of the couple is the story of a repair guy (Wanlop Rungkumjud) who shows up at the door of a self-declared “Academic Ladyboy” (Wisarut Homhuan) to fix another possessed vacuum. The intertwining stories and unimaginable turn of events reveal complex layers and deeper context beneath the setting dust. Don’t let the breathtaking images fool you. There is more than what meets the eye! **How it works**: I will be at Focus around 6:15, where we can meet before the movie starts and have a drink. You can message me to find us. Screening starts at 6:45. Hope to see you soon!

**Welkom bij Coding Wednesday!** Samen duiken we in de creatieve wereld van programmeren. Elke maand is er een challenge of workshop gericht op coderen. In de regel maken we gebruik van de programmeertalen die je bij Novi leert (Python, Javascript, Java) **Wat doen we deze keer?** Altijd al samen willen werken aan een programmeerproject? Deze Coding Wednesday bouwen we een website na met de hele groep. Iedereen krijgt een apart onderdeel om te designen. Dit doen we met HTML, CSS en het Javascript framework React. De onderdelen worden met pull requests samengevoegd in het Github project. **Heb ik voorkennis nodig?** Het is handig als je al wat programmeerervaring hebt en hebt gewerkt met Github. Zo niet, kijk vooral mee om iets op te steken. Of werk met iemand samen! Uiteraard kan je je voorbereiden met online tutorials. **Wat heb je nodig?** * Je eigen laptop met WiFi aansluiting * Installeer een **code editor**. Novi studenten kunnen Webstorm of IntelliJ gebruiken. Anders is [VSCode](https://code.visualstudio.com/download) een prima editor * Zorg dat je een Github account hebt en Git hebt geinstalleerd. Tip: oefen vooraf met een dummy project om te zien of je code kan toevoegen vanaf een pull request. **Is er een minimum aantal aanmeldingen?** Coding Wednesday gaat door als er 5 aanmeldingen zijn of meer. Dus vergeet vooral niet om je aan te melden :) Mocht het niet doorgaan, laten we dit hier weten voor 13 mei 12:00 uur! Details: 📅 Wanneer: Woensdag 13 mei 2026, 14:00 uur (tot uiterlijk 17:00) 📍 Waar: Op locatie! Newtonlaan 247, Utrecht (4e etage)

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

We’re heading out for a beautiful cross border hike through forest, heathland, open landscapes, and a very special midpoint stop: **De Achelse Kluis**, a historic abbey on the border between the Netherlands and Belgium. The hike starts in the Netherlands and takes us through the peaceful **Leenderbos**, one of the most atmospheric forest areas in North Brabant. Expect woodland paths, sandy tracks, heath, open views, and that lovely Veluwe style feeling of moving between forest and open landscape. As we continue south, we make our way toward the Belgian border and our main break location: **De Achelse Kluis**. This unique abbey complex lies between **Hamont Achel** and **Leende**. With roots going back to the 17th century, and later known as a Trappist abbey, it offers a beautiful neogothic setting with a brasserie, abbey shop, and a calm historic atmosphere. After several kilometers of forest and heathland walking, arriving at the abbey will feel like a real reward. We’ll take our longer break here, with the option to enjoy the brasserie, have a coffee, try Limburgse vlaai, taste an abbey beer, or simply relax around the grounds. After the break, we cross back into the Dutch side and return through the Leenderbos, completing a full loop through forest, heathland, and quiet countryside. A hike with forest energy, abbey atmosphere, monks’ history, and a touch of Belgium. 📲 **WhatsApp group** I’ll open a temporary WhatsApp group for everyone signed up before the hike, so we can coordinate carpooling, final break arrangements, and any last minute updates. **📍When and where to meet?** We’ll meet at 11h15 at Busstop "Leende, Valkenswaardseweg/A2"" https://maps.app.goo.gl/Uij4AmfEos2foDbQ8 ⏰ **We start walking a few minutes after meeting up** We don’t wait for latecomers, as we have a long route ahead and want to enjoy the full day properly. **🚗 Coming by car?** Please check your parking options beforehand so you arrive on time. **⏸️ Planned Breaks** After around **10 km:** 60 minute break at **De Achelse Kluis** I still need to confirm the practical arrangements with the brasserie, including whether we can just have drinks or whether we need to order food as well. I’ll share the update in the WhatsApp group once confirmed. **💸 Payment** Please pay as soon as you sign up: To keep things fair for everyone, if we don’t receive your payment within 48 hours, we will need to remove you from the participant list. If there’s a waiting list, this will happen sooner (in less than 48 hours). If that happens, no worries — you’re always welcome to sign up again if there’s space. 🌟 Early Bird Deal! Join now for just €4 — available for 3 days (72h). After that, the price will be €5. Please pay here: https://tikkie.me/pay/ute915nnuvqfl74002hh **👟 Good to know** * Refund policy: Cancellations are fully refundable up to 1 week before the event (This is Friday 8 May at 23h59). After this period, the fee becomes non-refundable. * Hike difficulty: Our hikes are moderately challenging. Please only join if you’re confident you can keep up with the group’s pace (5 km/ h)— it’s more fun for everyone when we can walk together without long waits. * If the pace is too challenging: We may kindly suggest you continue at your own pace. We’ll give you clear directions to the nearest bus or train so you can return comfortably. * At your own risk: You participate at your own risk, so please make sure you have appropriate insurance coverage for outdoor activities. * Payment note: With Tikkie we only see initials (e.g., J. Doe instead of John Doe). Please include your Meetup name in the payment note so we can match it easily. * Friends joining: If you bring a friend, make sure they also register and pay. * What to bring: Snacks and water. * Stay connected: Join our WhatsApp group to be the first to hear about future hikes — ask for the QR code during the hike. * T-shirts: Fairwear-certified organic cotton, eco-friendly inks — €25. Sustainable, odor-resistant, and perfect for hiking. Let us know your size and we’ll bring one for you.

Have you always wanted to visit the Netherlands, but for no specific reason, you never actually did it? How about spending a weekend of street photography in one of the most beautiful Dutch cities-Utrecht-with me? | lived in Utrecht for 8 years and can show you all the beautitul spots. Find more details on my website! Workshop Details Where: Utrecht, The Netherlands When: 16.05.2026 Time: 07:30 — 10:30PM What you’ll Learn * Master how to use natural light and shadow to create striking black and white images * Capture candid street moments with confidence * Embrace ICM (Intentional Camera Movement), a creative technique that combines deliberate camera movement with a slow shutter speed to create abstract, painterly images * Discover the timeless beauty of black and white street photography Your participation costs 150 CHF. Please register directly through my website to secure your spot: www.katjabouwman.com/workshops More info on www.katjabouwman.com/workshops or visit my Instagram account katja_zuerich

## 🎨**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!🌟☕🍷🍪🍰**

Have you always wanted to visit the Netherlands, but for no specific reason, you never actually did it? How about spending a weekend of street photography in one of the most beautiful Dutch cities-Utrecht-with me? | lived in Utrecht for 8 years and can show you all the beautitul spots. Find more details on my website! Workshop Details Where: Utrecht, The Netherlands When: 17.05.2026 Time: 12:00 — 15:00 AM What you’ll Learn * Master how to use natural light and shadow to create striking black and white images * Capture candid street moments with confidence * Embrace ICM (Intentional Camera Movement), a creative technique that combines deliberate camera movement with a slow shutter speed to create abstract, painterly images * Discover the timeless beauty of black and white street photography Your participation costs 150 CHF. Please register directly through my website to secure your spot: www.katjabouwman.com/workshops

**RSVP's at MeetUp.com are limited to a total of 10 and will be ignored. If you would like us to wait for you when we walk, please register for this photowalk at our Clubhouse:** [https://www.heylo.com/events/94898f98-af8d-4b65-b31d-922abfe6568e/-OrIio1QR8h3tjQXgzFM](https://www.heylo.com/events/94898f98-af8d-4b65-b31d-922abfe6568e/-OrIio1QR8h3tjQXgzFM) *\* The event is listed at MeetUp for promotion only.* *\* The number of attendees listed here is not the actual number.* \~ During this walk, you’ll capture how different historical periods coexist in the city — from medieval to modern. The idea is to photograph how Utrecht’s rich history blends with contemporary life, offering a visual journey through time. Think about old facades vs. modern shops, or capture the contrast between historic buildings and modern hustle. Alternatively, as bonus assignment, you can also do a color hunt. Each participant picks one color and during the photowalk, looks for subjects where that color clearly stands out. The goal is to make at least three photos that work together as a small series. This challenge is about training your eye, improving composition, and becoming more aware of color and subjects in everyday scenes. Submit a collage on Heylo, displaying your time capture, or selected color. We will meet at Domplein, near the Sun (big orb) in front of the Academiegebouw of Universiteit Utrecht. The planned route is: [https://www.google.com/maps/d/viewer?mid=1rkouqq2VDsGSWb_Zgve9V7R6KAjhtw4](https://www.google.com/maps/d/viewer?mid=1rkouqq2VDsGSWb_Zgve9V7R6KAjhtw4) The walk is about 4km, so we expect to finish around 16:00. After the walk we could stop for a drink at Mariaplaats (optional, not included and at your own expense), share our results and talk photography. ***Let's meetup and have fun!*** *Please note:* * ***The photowalk starts at the posted time.*** Try to be there early, but if you are running late... just find us. The link to live location of the group (via Google Maps) will be shared in the Event Chat in our Clubhouse at [https://heylo.group/utrechtphotography](https://heylo.group/utrechtphotography). * ***If you register for this photowalk and you can not make it, please update your RSVP!*** * The photowalk could be cancelled or postponed in case of really bad weather. * The end time is an estimate only; the length of the actual walk could be different from posted. * Check before you go if all your equipment is working properly; lens cleaned, batteries charged, memory cards empty. * ***Come prepared:*** wear comfortable shoes, bring water and a snack, check the weather forecast - and don't forget your camera * The organisation is not responsible for any personal injury, loss, or damage to personal property during the photowalk. Participants are advised to have appropriate (travel/liability) insurance. * During the walk, pay attention to your surroundings, traffic, curbs and people. * ***Be respectful of residents, their property and privacy.*** *And finally:* * Any type of camera is welcome. * If taking pictures or making photos gives you joy, you are more than welcome!

Gran Fondo Rosa is a must ride in the Netherlands, and since years we are riding under the ATAC flag! 3 distances available: 80, 120 and 170km. It’s a sportive so not a race, you choose your pace and we enjoy the race ride. Roads are closed and there are food and drink stops along the way. When signing up, select FRIEND TEAM and then type ATAC as the team. We will have our own table at the pasta party. Sign up here: https://www.nltourrides.nl/gran-fondo-rosa/#inschrijving Cheers !

I'm excited to host the 22st edition of *Strangers to Friends*! Every event so far has been warm, fun and full of great connections. So we’re doing it again! Curious about our previous events? Check out our photo albums (only visible on the laptop version of Meetup). **What to expect** * A safe, relaxed environment to meet both locals and expats, whether you want to meet new people, experience an international atmosphere or talk about business, it’s all possible. * Start the evening with a few rounds of conversation cards: pair up with someone you don’t know, answer meaningful questions and rotate every 10 minutes. Within just one hour, you’ll get to know several people really well and enjoy meaningful conversations. * Everyone comes on their own, so it’s easy to connect. **Practical details** * Doors open at 20:00, after 30 minutes we start with conversation cards * Venue: Boekencafé Libertas, Klarendalseweg 477-1, Arnhem * 20 min walk from Arnhem Central * 7 min walk from Arnhem Velperpoort * You’ll receive 1 drink token for (beer/wine/soft drinks) and snacks all night! * Find us on the right side of the café at the bar, by the window and garden Bring a smile and join us for an evening where friendships grow, business ideas spark and real-life connections happen. Back to basics, away from screens, meeting face-to-face. Warm regards, Julia

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

**Building a great product is one thing—building momentum behind it is another.** Join **Senior Product Manager Adam Solaiman** and **User Experience Manager Tyson Smith** for a behind-the-scenes look at what it takes to turn complex ideas into scalable products inside large organizations. In this session, they’ll share how teams move from ambiguity to execution—navigating organizational complexity, aligning stakeholders, and continuously evolving products after launch. You’ll walk away with insights on how to: * Build and sustain momentum across teams * Adapt to changing priorities without losing direction * Scale products thoughtfully in complex environments Whether you're driving a new initiative or growing an existing product, this conversation will give you practical strategies to keep things moving forward. Come connect, learn, and swap stories with fellow product professionals. \-\-\- Food and drinks will be provided by Switchbox, our generous host. Free parking will be available at the front and back sides of the Switchbox Office.

**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** TBD **YouTube Link** TBD

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

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!

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**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 John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. 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