ReactiveX
Meet other local people interested in ReactiveX: share experiences, inspire and encourage each other! Join a ReactiveX group.
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Frequently Asked Questions
Yes! Check out reactivex events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the reactivex events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find reactivex events near your location here. Connect with your local community and discover events within your area.
ReactiveX Events Today
Join in-person ReactiveX events happening right now
Spreek met impact! Met Gooise Toastmasters Goudenraad!
**Wil jij impact maken als je voor een groep spreekt en tegelijkertijd stappen zetten in je carrière?**
* Dan zijn **spreken in het openbaar, leiderschap en communicatie** dé belangrijkste vaardigheden die je moet beheersen.
* Maar waar kun je deze vaardigheden leren en op een veilige manier oefenen? Bij ons! **Goudenraad Toastmasters van het Gooi**! In het prachtige **Huis van Eemnes**!
*
Verder over ons:
* Met het bewezen en succesvolle **100-jarige Toastmasters-programma** van deze **wereldwijde organisatie** zet je stappen om zelfverzekerd voor een groep te staan en echte impact te maken.
* Goudenraad is de **tweetalige club (Nederlands en Engels)** in het Gooi voor professionals, ondernemers, trainers, managers, docenten, technici en iedereen die op een leuke manier wil groeien en zijn communicatie- en leiderschapstalent verder wil ontwikkelen!
* Wij komen **twee keer per maand** op een **maandag avond** samen in Het Huis van Eemnes, waar we uiteenlopende speeches in zowel het Nederlands als Engels horen en geven. Daarnaast ontvangen we **opbouwende feedback** die je van collega's misschien niet snel zou krijgen – en dat is **goud waard!**
* Ook hebben wij regelmatig **mini-workshops en improvisaties**
* Als Toastmaster kun je **wereldwijd netwerken** **met een internationale groep professionals,** deelnemen aan het **European Trainer's Network** en meedoen aan **Toastmasters-wedstrijden en conferenties.**
En dat alles voor een **zeer betaalbare prijs!** Aarzel niet en meld je aan om **gratis en vrijblijvend als gast** een van onze bijeenkomsten bij te wonen.
Email: goudenraadtoastmasters@gmail.com
Adres: Huis van Eemnes, Noordersingel 4, 3755 EZ Eemnes
Bijeenkomst Deventer Toastmasters
***English invitation***
You are invited to visit the Dutch Deventer Toastmasters. Toastmasters is an organisation where you can develop your public speaking and leadership skills in a safe, positive and inspiring environment.
It grows your self confidence and gives your energy a boost.
Want to visit us? Send an email to deventertoastmasters@gmail.com
***Nederlandse uitnodiging***
Je wordt van harte uitgenodigd om onze Nederlandse bijeenkomst te bezoeken bij Deventer Toastmasters. Toastmasters is een organisatie waar je je vaardigheden op het gebied van spreken in het openbaar en leiderschap kunt ontwikkelen. Dit doen we in een veilige, opbouwende en inspirerende omgeving.
Je zelfvertrouwen groeit en je energie krijgt een boost.
Wil jij meedoen? Stuur een email naar Deventertoastmasters@gmail.com
Swimming lessons for adults | Beginners
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.
Buitenspelen voor volwassene
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.
Indoor Volleyball Classes for Beginners
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
Manic Monday: Spoken Word / Open Mic Night
Spoken Word / Open Mic: raw, honest, authentic, everyone welcome
ReactiveX Events This Week
Discover what is happening in the next few days
UX Beers Antwerp March @Dashdot
**Welcome to our March UX Beers in Antwerp!**
This time, we will host our event on Tuesday the 31st of March with [Dashdot](https://dashdot.be) at Plein Magazijn in Antwerp.
[Ariad](https://www.ariadgroup.com/) and [Creative Skills](https://www.creativeskills.be/) sponsor our events.
Follow the event online? We stream live via [Youtube](https://www.youtube.com/watch?v=EBqyTDAyQBw)
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\#\#\# UX TALKS
**Talk 1:** #BYOA — Bring Your Own Application
[Erik Willemse](https://www.linkedin.com/in/erikwillemse/), Senior Digital Service & AI Design Engineer
We’re entering a phase where, if a tool doesn’t exist, or if the existing ones are simply too complicated, you just build the exact thing you need yourself.
No roadmap. No procurement cycle. No feature request backlog.
Just solve the problem.
Thanks to vibe-coding, building software is becoming accessible to the people who actually experience the friction. Instead of waiting months for a feature or adapting your workflow to a generic tool, you create something that fits your problem, your process, and your team.
Tools like Lovable make that possible. And this shift is bigger than it may seem.
This isn’t really about a waffle charts generator or poster tiling tools. It’s about what happens when building software on demand becomes normal.
When the people closest to the problem can create the solution, exactly when they need it.
**Talk 2:** Digital inclusion in public transport
Sjoera Roggeman
Public transport is a fundamental service that should be available to everyone. But as services become increasingly digital, there is a real risk of excluding people who are less digitally confident, or have specific needs for using digital products. That’s why De Lijn implemented an “easy mode” within the existing app, a simplified interface that reduces complexity and makes key tasks more straightforward and intuitive.
In this talk, Sjoera will walk you through the design process from start to end, and share her learnings and challenges as a UX designer on this project.
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\#\#\# SCHEDULE
18:00 - Doors open. Drinks & snacks
19.00 - 19.15 - Introduction to UX Belgium Meetup, announcements
19.15 - 19:45 - Talk #1
19:45 -20:15 - BREAK
20:15 - 20:45 - Talk #2
20:45 - 21:30 - Socialize
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\#\#\# SLACK CHANNEL
We have our own UX Belgium slack channel.
[Come join us and say hi!](https://join.slack.com/t/ux-belgium/shared_invite/zt-1bjpnuiog-T4Di4flXYPWgbT9KrZ53CA)
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\#\#\# YOUTUBE CHANNEL
All our livestreams and talks are recorded and available on our [UX Belgium youtube channel](https://www.youtube.com/channel/UCno7V18T-EglYXprgrUZQ7A).
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\#\#\# ABOUT UX BELGIUM
UX Belgium is a growing community of User Experience (UX) professionals in and around Belgium.
Look for these types of events:
UX Beers
Periodically, we gather at a different agency or venue to drink beers, network and listen to speakers on various themes in the world of UX and digital design.
UX Antwerp: Each last Tuesday of the month
UX Brussels: Each second Tuesday of the month, 4x per year
UX Workshops
Now and then we organize events to dive deeper into specific skills and techniques in UX. These are smaller, hands-on workshops designed to boost your UX toolbox.
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The UX Belgium Meetup Team
Dream Team Group Experiment
Spring! A perfect time to join this "Success Team", which has already proven to be transformative for some members. Bring your earthly goals and impossible dreams!
We gather in a pleasant space at Rosa Buurtcentrum (2nd floor–eerste verdieping–right hand, last door; there is a lift). There will be tea and you are welcome (but not required) to bring snacks. We'd love to have you. It's free (50 cents for tea contribution would be perfect).
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Help wanted & help offered. Bi-weekly meetings (every two weeks). Language English/Dutch.
This idea is inspired by Barbara Sher's story and experiences. Please see her Ted Talk titled "Isolation is the dream-killer, not your attitude".
The idea in short: **One person at a time tells the group his/her dream or aim and the obstacles they face to achieve it.**
**It could be a trip, an experience, a change of career, an undertaking of some kind, learning a skill, solving a particular problem or even finding out what you really want.**
**The group works to realise the person's aim. Not just theoretically, also practically. For this we use our experience and networks.**
—Nothing as satisfying as helping another! Perhaps suitable, Gabor Mate's words: "You never heal alone."
Please contact me at galatv@protonmail.com if you have questions or would like to help me to organise these gatherings.
Thank you!
Gala
Painting: "Apes in the Orange Grove", 1910, Henri Rousseau.
#WPNinjasNL Meeting #2 2026
**Details**
The Workplace Ninja User Group Netherlands is proud to announce that on Wednesday the 1st of April 2026 we will organize our 2nd in-person event in the year 2026.
**Program:**
**15:30 - 16:00: Welcome at location**
**16:00 - 17:00: Session 1: Jorik Polhuis “Copilot als reality check: wanneer AI je project niet spaart”**
**17:05 - 18:05: Session 2: Arno van Dijk, "How to Protect Your Tokens with Intune & Conditional Access"**
**18:05 - 19:00: Food, drinks and networking, sponsored by location host**
**19:00 - 20:00: Session 3:**
**20:00 - 21:00: Drinks and networking**
Location: \
**Session 1: Jorik Polhuis “Copilot als reality check: wanneer AI je project niet spaart”**
Wat gebeurt er als je Copilot vraagt om eerlijk te zijn over je project?
In deze sessie bouwen we samen een agent die niet samenvat, maar **kritisch meedenkt**: wat klopt hier niet, wat missen we, en waar lopen we risico zonder het te benoemen?
Aan de hand van een herkenbare projectcase laten we zien:
* hoe je van een idee naar een agent komt
* waarom agent‑denken iets anders is dan prompten
* en waar het misgaat zonder goede afspraken en data
**Session 2:** How to Protect Your Tokens with Intune & Conditional Access - Arno van Dijk
When accessing resources with Single Sign On, the Microsoft Services makes use of a Primary Refresh Token (PRT). This token is created when a device is registered so it can make use of Single Sign On. Now a days token theft is becoming a huge problem. Luckily Microsoft has released several features to reduces the possibility for Token theft. Read on to learn more about the profile possibilities in Intune and how to enforce your token protection with Conditional Access
**Session 3:** How Not to Manage Your Microsoft 365 Tenant: And What to Do Instead - Dave Stork
Managing a Microsoft 365 tenant can be deceptively simple (it is a commodity, right! Right?), but small misconfigurations can lead to security gaps and vulnerabilities. In this session, Microsoft MVP Dave Stork highlights common mistakes he encounters in real-world M365 environments and explains why they introduce unnecessary risk.
More importantly, he demonstrates practical, secure alternatives based on Microsoft's latest guidance, CIS benchmarks, and field experience.
Attendees will learn how to strengthen administrative identity, access, and posture with approaches such as least‑privilege administration, secure account design, Conditional Access, privileged access management, and automation-first operations.
Expect pragmatic insights, recognizable examples, and actionable recommendations to immediately improve your tenant’s management.
Painting & Drawing Cafe in Amersfoort ( For Expats and English Speakers )
## 🎨**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! 😉**
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## 🖌️**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!** 💐🥰
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### 👩🏻🎨**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)** 🍀
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### ☕**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.
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### **🎟️ 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
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## **See you to Paint, Draw, and drink together!🌟☕🍷🍪🍰**
Paint & Sip Party in Amersfoort / Watercolor 🎨🥳🍷Mix Media / English
**🟢🟢 ABOUT OUR WATERCOLOR PAINTING PARTY / AMERSFOORT**
🎨🥳🍷🏢 Amersfoort - Utrecht Province / Center of the City / Easy access from train station.
Create your very own **portrait, animals, landscape, or figurative** masterpiece in only **2.5 HOURS using watercolor and our secret mixed media techniques!🧪🧫.** This session is not about perfection; it is about capturing emotions and personal expression. **No experience required** **\- trust us\!** our professional artist will guide you step-by-step through this unique self-portrait journey.
You can look forward to a fun and exciting evening with other participants, **so it doesn't matter if you want to come with friends or alone - you are very welcome!** This is the perfect after-work or weekend activity where you'll unleash your creativity while creating something deeply personal.
You will create a portrait combining painting, drawing, and creative techniques to bring your unique vision to life. When finished, you'll take home your newly created self-portrait artwork to cherish or share with loved ones.
Each participant will have pencils, colored pencils, watercolor, acrylic/gouache paints, and a surface. You'll work from an image we will bring.
**🎟️ READY TO HAVE FUN?**
Get your Ticket and book your seat **✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨**
🤔 **Questions?**
Speak with a member of the team in **[WHATSAPP HERE](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬**
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**🟢🟢 WHAT'S INCLUDED?**
🔶 All supplies included
🔶 **2.5-HOUR [TICKET SESSION](https://buymeacoffee.com/artloversclub/e/430555)** 🎟️
🎁 **EXTRA BONUS:** **FREE TICKET**🎟️ to participate in our Drawing and Painting Cafes in Amersfoort or Our Online Still-Life sessions if you live far away.
🔶 New friendships and Conversations💬
🔶 Freedom to work at your own pace
🔶 **English tutored activity** (And of course, you can speak in your local language with your friends!🍷🥰🥰🍹)
⭐ No experience needed
**🎟️ BOOK YOUR SEAT🪑 IN ADVANCE ✨[HERE](https://buymeacoffee.com/artloversclub/e/430555) ✨!**
🤔 **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬**
**🕑 2026 CALENDAR OF UPCOMING EVENTS:**
First Sunday or every month from 11.00 AM - 1:30 PM.
....................................
**🎟️ ART LOVERS CLUB / ABOUT US**
**ART LOVERS CLUB** is a community where art enthusiasts come together to explore their creativity and connect with new buddies through various events and sessions ( In-Person and Online) . Whether you're a seasoned artist or just starting, we have something for everyone!⭐
To share with you more about what we do, you can see here the overall atmosphere of our events in Amersfoort and also follow us if you want⭐: **[https://www.instagram.com/art_lovers_social_club](https://www.instagram.com/art_lovers_social_club)**
🤔 **Questions?** Speak with a member of the team in **[WHATSAPP](https://chat.whatsapp.com/J3Y5yeWUhvbJM98bqty2WP) 💬**
**🕑 2025 CALENDAR OF UPCOMING EVENTS:**
First Sunday or every month from 11.00 AM - 1:30 PM.
**See you soon. We are looking forward to painting and having Fun Together! 🎨👩🏼🎨👨🏼🎨👩🏼🎨🧑🏼🎨🎈**
ReactiveX Events Near You
Connect with your local ReactiveX community
IxDA Chat ‘n Pancakes
Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty.
Join the local UX and Digital Design community for a casual monthly breakfast.
Look for us upstairs!
Cocoaheads
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/
IN PERSON in Columbus: Creative Deal Autopsies + Wholesaling 101
(Note: RSVPing here on Meetup does NOT reserve your seat. To do that, you'll need to register at our website, **[HERE](https://www.coreerocks.com/Events.aspx?ID=IN-PERSON-in-Columbus-Creative-Deal-Autopsies-Wholesaling-101-14-4-7-2026)**.)
The market changed—and most investors are still operating like it didn't.
Deals that used to work don't.
Buyers want different things.
And a lot of what's being taught right now is outdated or just wrong.
And, since 2011, it's been our job to make sure that our members are armed with the most up-to-date, real-world strategies for building wealth in Central Ohio real estate…
…so our mission with this meeting (and every meeting) is to give you the no-hype, warts-and-all info you need to succeed.
First, Wholesaling 101—a clear, real-world look at how wholesaling actually works today, what to pay, and how to stay out of trouble.
Then, Creative Deal Autopsies—real investors breaking down real deals with real numbers, real conversations, and real outcomes.
You'll also get the chance to put the presenters in the hot seat and ask any and every question you have about how they did their deals.
You'll learn:
1. What wholesaling actually is
2. How to calculate real offers
3. Where deals are coming from now
4. What buyers want
5. How creative deals are structured
6. What contracts and terms are used
7. What can go wrong—and how to avoid it
**Agenda:**
5:00–6:00: Free Light Dinner and Networking
6:00: Earlybird Meeting – Wholesaling 101
7:00: Buy-Sell-Trade (members only)
7:30: Creative Deal Autopsies
Members: Free
First-time guests: Free
Non-members: $35 (or join for $30 instead)
Remember, to actually reserve your seat, you have to go **[HERE](https://www.coreerocks.com/Events.aspx?ID=IN-PERSON-in-Columbus-Creative-Deal-Autopsies-Wholesaling-101-14-4-7-2026)** and register on our website!
How LLMs Like ChatGPT Actually Work and How to Build With Them
**First meetup of the Columbus AI Engineering group.**
We’ll kick things off with a practical, beginner-friendly discussion on:
**How LLMs like ChatGPT actually work — and how to build real applications with them.**
We’ll cover:
* what’s actually happening under the hood (at a high level)
* why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.)
* how people are building real systems with them today
* where things break in practice
This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A.
Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join.
No slides, no fluff — just real conversation about real systems.
We’ll hang out afterward and get to know each other.
Wednesday Morning Breakfast Meeting
Let’s get together at the Crowne Plaza and talk deals, creative finance, problem solving, whatever you want! Hubert Bruce Hosts, COREE members share ideas and resources. Open to the public!
Central Ohio Radio Enthusiasts - WiFi HaLow: Introduction and Practical Use
Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected.
This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**.
Details are are [core.radio](https://core.radio).





















