Service Dog

Mark your calendars: the next Haskell Utrecht Meetup will be on June 1st! This time, we will be generously hosted by Chordify's in their office, Burgemeester Reigerstraat 89. We hope to see you there! Agenda: * 19:00 Doors open * 19:30 Welcome * 19:35 Hugo Peters - Making people secretly use an Haskell EDSL * Break * 20:30 Matteo Bertorotta - Compilation techniques using Fusion in Haskell * 21:00-ish Wrap up **Hugo Peters (NVIDIA) - Making people secretly use an Haskell EDSL** In this talk, I'll show how we use the bluefin effect system to design simple but effective DSL builders for non-Haskell programmers. **Matteo Bertorotta (Utrecht University) - Compilation techniques using Fusion in Haskell** We discuss fusion as a powerful mechanic for optimization during compilation, specifically focusing on how fusion techniques eliminate intermediate data structures to maximize runtime efficiency. We explore two similar examples in vastly different domains: (1) Transforming elegant library code into a performant counterpart, and (2) fusing complex gradient computations in reverse automatic differentiation into a single pass.

Tijdens de maakavonden van Meet Je Stad soldeer je je eigen meetkastje dat temperatuur, luchtvochtigheid en fijnstof\* kan meten. Het solderen is geschikt voor iedereen: van beginner tot expert! Daarnaast bieden we begeleiding, dus hoef je niet bang te zijn dat je er niet uit komt. Ter deelname betaal je €15 voor de materialen. Vaak lukt het niet om al het soldeerwerk binnen één avond af te krijgen, maar dit is geen probleem; tijdens onze volgende maakavonden kun je langskomen om je werk af te maken. Inmiddels zijn er in de stad Utrecht nu zo’n 150 mensen die hun eigen meetkastje hebben gesoldeerd. Als je kastje af is wordt hij geregistreerd en kun je hem bij jou thuis ophangen/neerzetten. Hierbij krijg je instructies zodat je de juiste locatie kunt kiezen en je metingen zo betrouwbaar mogelijk zijn. Als het dan eenmaal hangt kun je via de kaart op de [website van Meet Je Stad](https://meetjestad.net/index3.php?loc=Tb) bijhouden welke metingen je kastje neemt: zo kun je bijvoorbeeld zien op welke momenten het bij jou het warmst is en vergelijkingen maken met waardes van andere meetkastjes. Dat kan door middel van [deze tool](https://mjs-datavisualisation-fez7kynngq-ez.a.run.app/) die je helpt om grafieken te maken. Dan kan je er achter komen hoe jouw omgeving ervoor staat in vergelijking met de rest van de stad. Meet Je Stad organiseert ook kennisavonden met gastsprekers die vertellen over hitte, fijnstof en andere burgerinitiatieven in de stad. Dit zijn ook gelijk geschikte momenten voor deelnemers om met elkaar in discussie te gaan over hun metingen en ondervindingen. Zo hopen we een netwerk van betrokken inwoners te creëren en meer te weten te komen over de milieuomstandigheden in de stad! *\*De fijnstofsensor is optioneel en kost 20 euro extra. Indien je deze bij je meetkastje wilt moet je deze via een draad met een stroombron binnen 15 meter kunnen verbinden.* **Organisatie:** Milieucentrum Utrecht (MCU) in samenwerking met de Makerscommunity HaHaHo. **Locatie:** Bibliotheek Neude, Huis van Actief Burgerschap (begane grond) **Kosten:** 15 euro voor materiaalkosten, 20 euro extra voor fijnstofsensor. (Meet-up suggereert bij het aanmaken van een account dat een betaald abonnement vereist is. Dit is niet zo, op de pagina waar gevraagd wordt om een abonnement te kiezen staat rechts bovenin de optie "Ga door met het gratis plan".) *Bij te weinig aanmeldingen kan de workshop afgelast worden.*

ATTEND IN PERSON OR ON ZOOM **NB This event will now take place at the Café of [St. Hilda's East Community Centre](https://www.google.com/maps/@51.5244243,-0.0746385,17z?entry=ttu&g_ep=EgoyMDI0MDkwNC4wIKXMDSoASAFQAw%3D%3D), 18 Club Row, London E2 7EY. The nearest station (just a few minutes walk) is [Shoreditch High Street](https://www.google.com/maps/place/Shoreditch+High+Street/@51.5237626,-0.0741518,16.75z/data=!4m6!3m5!1s0x48761cb7237e45d3:0x832e68d6f5c3b9b0!8m2!3d51.5232573!4d-0.0754661!16s%2Fg%2F1hhvv83t7?entry=ttu&g_ep=EgoyMDI0MDkwNC4wIKXMDSoASAFQAw%3D%3D) (Overground).** We can go back to the earliest beginnings of the Western philosophical tradition to find references to what we might call “common sense”. Heraclitus states that “thinking is common to all”. However, this seemingly optimistic statement is soon qualified by his lament that people don’t understand, and therefore don’t recognise the importance of, his own philosophical message: they clearly don’t think well enough. The lights are on but no-one’s home, he seems to say. But is he really disappointed at the poor quality of common thought or because others don’t think like him? So, yes, we all think, but what is it that is really shared? What is common about common sense, if it exists at all? In my talk at Kant’s Cave I would like to explore with you the possible meanings, uses and value of the idea of “common sense”. We will discuss thinkers from Kant and Voltaire to Gadamer and Hannah Arendt. Event video teaser [here](https://youtube.com/shorts/edZEjrKHKnQ?si=3K0G7Mj1rNoHeVjE) **Dr. Anja Steinbauer** is a London-based philosopher, Sinologist, and the President of [Philosophy For All (PFA)](https://pfalondon.org/). Passionate about making philosophy vibrant and accessible to everyone, she has dedicated her career to public philosophy, pioneering engaging formats that bridge academic thought with everyday life. She is an editor for *[Philosophy Now](https://philosophynow.org/about)*[ magazine](https://philosophynow.org/about) and lecturer at the [London School of Philosophy](https://uk.linkedin.com/in/anja-steinbauer-27966344). This event is sponsored by the Royal institute of Philosophy. For the full programme of events pls see [pfalondon.org](http://pfalondon.org)

**Praat mee over de toekomst van Defensie en Lelystad Airport in Flevoland** Tweede Kamerlid Laurens Dassen en luitenant-generaal b.d. Kees Matthijssen gaan in gesprek met inwoners uit Flevoland. Meer info: https://voltnederland.org/flevoland/agenda/de-toekomst-van-defensie-in-flevoland **Op maandagavond 1 juni** organiseert Volt Flevoland een openbaar evenement in congrescentrum De Pijler in Lelystad. We gaan dieper in op de toekomst van Defensie in onze provincie, met aandacht voor de mogelijke komst van een superkazerne en de rol van Lelystad Airport. **Bijzondere gastsprekers** zijn Tweede Kamerlid **Laurens Dassen** die vanuit Volt kijkt naar bredere maatschappelijke en Europese keuzes, en **luitenant-generaal b.d. Kees Matthijssen**, die vanuit militair perspectief duiding geeft aan ontwikkelingen in de wereld, Europa en Nederland, en in die context ingaat op de betekenis van een kazerne in de polder en het gebruik van Lelystad Airport voor de F-35. **Wat betekent dit voor Flevoland?** De plannen voor een grote kazerne en de komst van F-35’s hebben grote gevolgen voor onze veiligheid, ons werk, innovatie, de natuur, onze leefomgeving en de woningmarkt. Vaak kiezen partijen voor een beperkte blik en kortetermijnoplossingen. Volt Flevoland kijkt verder en wil dat de inwoners van Flevoland zelf meepraten over deze keuzes. **Veiligheid stopt niet bij grenzen;** daarom kiest Volt voor een sterke Europese krijgsmacht. We nemen onze regionale verantwoordelijkheid serieus en zien de kansen van een kazerne, maar beschermen tegelijkertijd onze natuur en leefbaarheid. Echte vooruitgang is een balans tussen internationale veiligheid en lokale leefbaarheid. Ook rond Lelystad Airport wil Volt een toekomst met duurzame keuzes: het vliegveld blijft wat ons betreft gesloten voor vakantievluchten. We stimuleren minder korte vervuilende vluchten (tot 650 kilometer) en werken liever samen met België, Frankrijk en Duitsland aan betrouwbare en snellere treinverbindingen als duurzaam alternatief. Deze plannen zijn complex en hebben veel gevolgen voor de polder. Daarom gaan we hierover graag met de bewoners in gesprek. De avond biedt ruimte voor vragen, een open dialoog en kennismaking met andere betrokken inwoners. Iedereen is van harte welkom en de toegang is gratis.

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.

We are excited to announce our next Utrecht JUG meetup on **June 3rd** hosted by **Keylane**. Join us for an evening full of creativity, innovation, and practical insights from the Java and Spring ecosystem. As always, you can expect inspiring talks, great conversations, food, drinks, and plenty of opportunities to connect with fellow developers. We start the evening with food and drinks before diving into our first session, where **Alexander Chatzizacharias** takes Spring Boot far beyond its intended use case. In a talk that combines humor, curiosity, and technical depth, Alexander explores what happens when you use Spring Boot as the foundation for real-time game development. From IoC containers to event listeners, this session offers a fresh and entertaining perspective on the Spring ecosystem and the joy of learning by experimentation. After the break, **Josh Long** and **James Ward** take the stage with Bootiful Spring AI. Artificial Intelligence is rapidly becoming part of modern software development, and this session explores how Spring AI makes integrating AI capabilities into Java applications approachable and powerful. Expect an engaging introduction to modern AI concepts and a practical look at how the Spring ecosystem embraces the next wave of AI engineering. Please join us and RSVP! Because of the limited number of seats, please keep your RSVP up-to-date, so we can welcome someone else if you can't make it. **Timeschedule** 17:00 Doors open 18:00 Food & Drinks 18:45 Let's use Spring Boot to build games, because why not? by Alexander Chatzizacharias 19:45 Break 20:00 Bootiful Spring AI by Josh Long & James Ward 21:00 Drinks **Giveaway** 1 JetBrains licence **Talks** **Let's use Spring Boot to build games, because why not?** If you work on enterprise grade microservices on the JVM, you have undoubtedly heard of Spring Boot. Most developers see it as the reliable backbone of enterprise software. It is stable, predictable, and safe. But what if we took all those conventions and threw them out the window? What if we repurposed the IoC container, event listeners, and bean lifecycles to reveal what Spring Boot was always meant to be? A game development framework! Join Alexander as he attempts to deconstruct and demystify the Spring ecosystem by forcing it to do things it was definitely not designed for. We are not talking about simple text adventures here. We are talking about building complex, real-time games like a Terraria clone or a souls-like RPG, all powered by the same annotations you use for your day job. This session explores what happens when you learn technologies by breaking them. Whether you are a Spring veteran or a newcomer, this talk offers a fresh perspective on the tools you use every day. You will leave with a better understanding of how Spring Boot works under the hood and the inspiration to build something completely unnecessary, just because you can. Come for the absurdity, stay for the laughs, and see what happens when you strip away conventions and best practices in the pursuit of a wild idea. **Bootiful Spring AI** The age of artificial intelligence (because the search for regular intelligence hasn't gone well..) is nearly at hand, and it's everywhere! But is it in your application? It should be. AI is about integration, and here the Java and Spring communities come second to nobody. In this talk, we'll demystify the concepts of modern day Artificial Intelligence and look at its integration with the white hot new Spring AI project, a framework that builds on the richness of Spring Boot to extend them to the wide world of AI engineering. **Speakers** **Alexander Chatzizacharias** Alexander, a 35-year-old Software Engineer at JDriven, holds dual Dutch and Greek nationality. He earned his master’s degree in Game Studies from the University of Amsterdam, where he discovered his passion for gamification and software engineering. Alexander aims to bridge the gap between game development and software engineering, believing that both industries have much to learn from each other. He is dedicated to integrating technologies and methodologies from both fields. Additionally, he enjoys experimenting with new technologies and cutting-edge SDKs. **Josh Long** Josh (@starbuxman) has been the first Spring Developer Advocate since 2010. Josh is a Java Champion, author of seven books (including Reactive Spring), creator of numerous video trainings, open-source contributor, YouTuber, and podcaster. He is a well-known voice in the Spring community and a passionate advocate for Java developers around the world. **James Ward** Professional software developer since 1997, with much of that time spent helping developers build software that doesn't suck. A typed pure functional programming zealot who often compromises on his ideals to just get stuff done. Currently a Developer Advocate for AWS.

Iedereen is welkom op onze open Freedom Friday Bitcoin Turnhout Meetup @ het super gezellige café Sint Pieter - Grote Markt 60, 2300 Turnhout Geen presentaties. Geen workshops. Gewoon 1 onderwerp: bitcoin. **Connect with Like-Minded Minds** Engage with the Bitcoin community and mingle with fellow enthusiasts. This meetup is your chance to discuss the future, share ideas, and network with pioneers in the decentralized money world. 🏢 **Central Location**: café Sint Pieter ligt perfect centraal, een ruim cafe op de grote markt van Turnhout. Mark your calendars and spread the word!

'HOMEGOING' by Yaa Gyasi 'Two sisters with two very different destinies. One sold into slavery; one a slave trader's wife. The consequences of their fate reverberate through the generations that follow. Taking us from the Gold Coast of Africa to the cotton-picking plantations of Mississippi; from the missionary schools of Ghana to the dive bars of Harlem, spanning three continents and seven generations, Yaa Gyasi has written a miraculous novel - the intimate, gripping story of a brilliantly vivid cast of characters and through their lives the very story of America itself. Epic in its canvas and intimate in its portraits, Homegoing is a searing and profound debut from a masterly new writer.' ***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

Join us on **June 2 at 5:00 PM** at **the Postillion Hotel Bar** for an evening of great food, relaxed conversations, and plenty of deep dives into all things **Identity & Access Management**, **Customer IAM**, and **Digital Identities**. This is the perfect way to finalize the Heliview IAM experience together with your fellow IAM enthusiasts. If you work with identity, security, authentication, authorization, or related tech, you’ll feel right at home. Come along, grab a drink, meet fellow practitioners, and be part of the ongoing conversation shaping the future of digital identity. Looking forward to seeing you there! More info on the conference: [Identity & Access Management](https://heliview.com/identity-access-management/)

\# 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**. # **Title**: Treat Her Like a Lady **Language**: Dutch **Subtitles**: English **Length**: 110 min **Director**: Paloma Aguilera Valdebenito **More info**: https://www.focusarnhem.nl/agenda/english-subs-treat-her-like-a-lady/ **Ticket link**: https://www.focusarnhem.nl/tickets/144301/ **Synopsis:** When single mother Sandra (radiant performance from Nienke Plas) is evicted from her apartment due to fraud, she convinces her daughters that their emergency shelter is a holiday hotel. Sandra is just about keeping it together. Living with her two daughters and partner in a modest but colourful Amsterdam apartment, she makes ends (mostly) meet through cleaning jobs and welfare payments. But when she’s faced with a rapidly mounting series of hurdles – unpaid bills, an accusation of fraud, the revelation that her partner has been cheating – Sandra must draw upon all her determination and creativity to keep her daughters out of social care. An effervescent second feature from Dutch filmmaker and writer Paloma Aguilera Valdebenito (Out of Love, IFFR 2016), this jewel of a film offers poignant criticism of a broken social system with all the vibrancy and optimism of a musical. Nienke Plas is masterful in her central performance as the matriarch, whose fortitude, boldness and charisma bring to mind the best of Almodóvar’s heroines. Featuring a gorgeously saturated colour palette and a fabulous needle-drop soundtrack, Treat Her Like a Lady demonstrates how warmth and resilience can transform the most desperate situations into fresh opportunities for laughter and light. **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!

**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)

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!

Topic to be announced. **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

## 🤝 Host Information A co-hosted event by ProductTank Columbus & Women in Product Columbus 💡 About the Workshop AI adoption is stalling across organizations — not because of a lack of motivation or tools, but because it's fundamentally a behavior design challenge. This hands-on workshop applies proven Behavior Design models and methods to help you move from a vague organizational wish to boost AI adoption to 3-5 concrete, testable interventions you can act on starting tomorrow. Whether you're a product manager, on a product team, or just someone trying to get AI to actually stick at work, you'll leave with a clear picture of what's worth focusing on, what to ignore, and how to drive real, sustained adoption — no guesswork required. 🛠️ What to Bring Laptop: Fully charged and ready to go. AI Assistant: Have your favorite AI assistant pulled up. (Dom will be using Claude, but feel free to use whichever assistant you prefer!) 🍕 Logistics & Perks Food & Drink: Pizza and drinks provided! Parking: Plenty of free spaces available on-site. ###

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.

Westerville Pride Festival Sat\. June 6\, 2026 \| 5 PM \- 8 PM If you're thinking of attending, or being a sponsor, vendor, or volunteer, visit our website at https://www.westervillequeercollective.org/pride for more information! Location and other info will be announced soon :)