Adult Indigo

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.

We are excited to announce our next Utrecht JUG meetup on **April 20, 2026,** hosted at the **Kamer van Koophandel.** Join us for an evening focused on the future of software development, where AI-driven, agentic systems are becoming an integral part of how we build and operate applications. In the first session, **Soham Dasgupta** will demonstrate how AI agents can power autonomous DevSecOps pipelines; from detecting vulnerabilities to generating fixes and validating them through CI. This hands-on talk offers a practical look at building self-driving security workflows with tools like GitHub Copilot. After the break **Raphael de Lio** explores how memory works in both humans and AI agents. By connecting insights from cognitive science to real-world engineering challenges, this session sheds light on how to design more reliable and context-aware AI systems. Join us for an evening of practical insight, new ideas, and great conversations. 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 19:00 Agentic DevSecOps: Autonomous Security Pipelines with AI Agents & Agentic Workflows by Soham Dasgupta 20:00 Break 20:15 The Anatomy of Memory in Humans and AI Agents by Raphael de Lio 21:15 Drinks # Giveaway 1 JetBrains licence *** # Talks ## Agentic DevSecOps: Autonomous Security Pipelines with AI Agents & Agentic Workflows What if your security pipeline could find vulnerabilities, file issues, write fixes, run CI, and request human approval — all autonomously? In this hands-on session, we start with a polyglot microservices repo that has zero security tooling and progressively build a fully autonomous agentic DevSecOps pipeline using GitHub Copilot. You'll see how AI agents perform repo-wide security assessments, how custom instructions shape agent behavior across the SDLC, and how agentic workflows chain dependency scanning, SAST, and test coverage checks into a self-driving loop: scan → auto-create issues → Coding Agent fixes → CI validates → AI code review → human approves. We'll also build custom Copilot agents for IaC security scanning and use GitHub's agentic workflow capabilities to generate recurring security reports — no human trigger required. Walk away with a working, repeatable pattern for embedding autonomous AI agents and agentic workflows into every stage of your DevSecOps lifecycle. *** # The Anatomy of Memory in Humans and AI Agents Artificial intelligence does not need to copy the human brain to advance, yet cognitive science still offers useful guidance. As agentic applications grow, understanding how humans store and retrieve information can help us design agents that act with greater context and reliability. This talk connects human memory to the practical challenges of building AI agents with memory. We will review the main types of memory in the brain, revisit a landmark case in neuroscience, and relate these ideas to how large language models process information. We will also look at the real difficulties of taking agents to production, where choosing what to store and how to retrieve it becomes the core challenge. Participants will learn: \- How insights from cognitive science can guide agent design \- The key forms of human memory and their relevance to AI \- What neuroscience reveals about the limits of large language models \- The main obstacles of deploying agents with memory in real systems \- How our work at Redis led to an open\-source\, production\-ready agent memory server \- Practical ways to improve memory in AI agents This session offers both conceptual clarity and concrete tools for building more capable agentic systems. *** # Speakers ## Soham Dasgupta Soham is a technology enthusiast working at Microsoft as a Solution Architect, with over 19 years of experience in software programming, designing, and architecture which includes on-prem, cloud-native applications, and web-based conversational application design. *** ## Raphael de Lio Raphael De Lio is an AI and Software Engineer at Redis with over eight years of experience spanning multiple industries and countries. He is passionate about distributed systems and specializes in Java, Kotlin, and building scalable, high-performance software with a growing focus on reliable, distributed agentic systems. What drives him is bridging the gap between software engineering and AI engineering, bringing the hard-won knowledge of building distributed, scalable systems into the world of AI where those foundations are often missing but matter most. Originally from Brazil, Raphael spent six years in Portugal before making the Netherlands his home, where he also helps organize the Dutch Kotlin User Group. He loves blending code, community, and creativity to help developers build better systems faster, and with a lot more fun along the way.

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.*

Time for our biweekly peer Satsang gathering! This is an open, equal and low-key gathering for spiritual seekers from all walks of life to get together, talk, feel connected and grow. The gathering will last for about two hours. Bring questions, thoughts, or just your presence. We'll see what unfolds once we're there. If you're interested but can't make the currently indicated time, the event is full or you have any other questions, get in touch with me at thijshugenholtz@gmail.com and we'll see what we can do! Location: Buurtcentrum Hart van Noord, Trumanlaan 60 Utrecht but the entrance is opposite Geallieerdenlaan 24

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

This is a public event. https://www.nesko.nl Please WhatsApp your meetup organisor for your confirmation!

Expand your visibility. Join a casual online hour to share you, your brand and business, and learn more about other business owners, locally and globally. Every session will close with gratitude and a mini creative activity, so have a pen and paper, tablet, or something available with which to write/create/draw. This usually occurs twice monthly. **RSVP here via EventBrite [here](https://www.eventbrite.nl/e/you-and-your-brand-a-casual-networking-hour-tickets-1984283125243).** *-* *\*\*\*The only requirements are a minimum age of 18 years old,* *and **at least three attendees** to make it a worthwhile hour for everyone.\*\*\**

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)**

#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**: L'engloutie **Language**: French **Subtitles**: English **Length**: 98 min **Director**: Louise Hémon **More info**: https://www.focusarnhem.nl/agenda/lengloutie-2/ **Ticket link**: https://www.focusarnhem.nl/tickets/143042/ **Synopsis**: On a stormy night in 1899, Aimée, a young republican schoolteacher, arrives in a snowbound hamlet on the remote edges of the French Alps. Despite the villagers’ mistrust, she’s determined to shed light on what she sees as their dark beliefs. As she gradually becomes part of the community, a sensual vertigo begins to grow within her. Until the day an avalanche claims the life of a first mountain dweller. **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!

**Bitcoin Meetup met Crazy Pool!** Deze maand organiseren we iets leuks: voorafgaand aan de meetup (voor wie dat wil) spelen we Crazy Pool bij Timestamp op de Korenmarkt. Crazy Pool lijkt op minigolf, maar je speelt het met een keu en een bal die je door verschillende obstakels moet stoten. De speeltijd is ongeveer 45 minuten. Aansluitend eten we bij Flor Fina. Je kunt ook na het diner aansluiten als je alleen voor een drankje wilt komen. De Bitcoin Meetup is geschikt voor zowel beginners als ervaren bitcoiners. Stel je vragen en praat mee over de nieuwste ontwikkelingen in de wereld van bitcoin. Wil je meedoen met Crazy Pool of mee-eten? Laat het ons even weten, dan houden we daar rekening mee bij de reservering. * 16:30 — Crazy Pool @ Timestamp (Korenmarkt) * 17:30 — Diner @ Flor Fina (Korenmarkt) * 19:30 — Drinks @ Flor Fina (Korenmarkt) ## English Bitcoin Meetup with Crazy Pool! This month we’re doing something fun: before the meetup (for those who want to join) we’ll play Crazy Pool at Timestamp on Korenmarkt. Crazy Pool is similar to mini golf, but you use a cue to strike a ball through various obstacles. Playtime is about 45 minutes. Afterwards we’ll have dinner at Flor Fina. You can also join later if you only want to come for drinks. The Bitcoin Meetup is suitable for both beginners and experienced bitcoiners. Ask your questions and join the conversation about the latest developments in the world of bitcoin. Would you like to play Crazy Pool or join us for dinner? Please let us know so we can account for it when making the reservation. 16:30 — Crazy Pool @ Timestamp (Korenmarkt) 17:30 — Dinner @ Flor Fina (Korenmarkt) 19:30 — Drinks @ Flor Fina (Korenmarkt) ## Deutsch Bitcoin Meetup mit Crazy Pool! Diesen Monat organisieren wir etwas Schönes: vor dem Meetup (für alle, die möchten) spielen wir Crazy Pool bei Timestamp auf dem Korenmarkt. Crazy Pool ähnelt Minigolf, aber man spielt mit einem Queue und stößt eine Kugel durch verschiedene Hindernisse. Die Spielzeit beträgt etwa 45 Minuten. Anschließend essen wir im Flor Fina. Du kannst auch später dazukommen, wenn du nur auf einen Drink vorbeikommen möchtest. Das Bitcoin Meetup ist sowohl für Einsteiger als auch für erfahrene Bitcoiner geeignet. Stelle deine Fragen und diskutiere über die neuesten Entwicklungen in der Welt von Bitcoin. Möchtest du bei Crazy Pool mitspielen oder zum Abendessen kommen? Bitte sag kurz Bescheid, damit wir es bei der Reservierung berücksichtigen können. 16:30 — Crazy Pool @ Timestamp (Korenmarkt) 17:30 — Abendessen @ Flor Fina (Korenmarkt) 19:30 — Drinks @ Flor Fina (Korenmarkt)

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

Join Neurospicy Columbus at the Stauff's for coffee and then a stroll through the Book Loft nearby! This will be a friendly chat for like minded individuals with Autism and/or ADHD (or somewhere on the Neurodiverse Spectra).

We’re bringing back Adult Field Day. Last year was a good mix of competition and just hanging out, so we’re doing it again with some new games mixed in. Think team-based challenges, simple races, and a few things inspired by game shows. You don’t need to be athletic. Most of the fun is just being part of a team and getting to know people you wouldn’t normally talk to. The goal isn’t really winning. It’s meeting people, laughing a bit, and leaving knowing a few more names than when you showed up. If you stick around after, we’ll have a potluck, a bonfire, and a couple comedians in the evening. Bring: * Something to share for the potluck * Clothes you can move around in A small contribution helps keep events sustainable and ensures those who RSVP actually show up. Include your Meetup name + event name in the note. Please send $2 per person to guarantee your spot. Venmo (preferred) or PayPal @WiseUnlimitedLLC Actual links in comments below! Include your Meetup name + event name in the note.

Let’s meet and share our thoughts about Carson McCullers’ novella, The Ballad of The Sad Café.

**How to take control of your subconscious and harness its power!** Join us for an eye-opening lecture where the speaker will break down complex ideas in a clear and practical way. You’ll gain insights into: ✅ The true definition of the subconscious ✅ How it generates unwanted emotions ✅ Its real purpose and function ✅ What determines the pressure it exerts on you And the most important topic: **How do you take control of your subconscious!** But this isn’t just another lecture where you sit and listen passively. It’s interactive and engaging—you can ask questions at any time. 📅 Reserve your spot now! Seats are limited, so don’t wait too long to sign up. Location: 1266 Dublin Rd, Columbus, OH 43215 Hosted by the Hubbard Dianetics Foundation

Let's catch up and have a relaxed chat, including chat about the book Disability Visibility. This collection of essays is available at the library. You'll be invited to share the essay that you related to the most, and the essay that did the most to grow your awareness of something new. It's OK if you don't read the whole book!