Virtual Currency
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Frequently Asked Questions
Yes! Check out virtual currency events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the virtual currency events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find virtual currency events near your location here. Connect with your local community and discover events within your area.
Virtual Currency Events Today
Join in-person Virtual Currency events happening right now
AWS Meetup @ Rabobank Utrecht
Parking: Please use public transport if possible. If arriving by car, use a P+R or park at the Jaarbeurs parking (paid).
Public Transit: 5 minute walk from Utrecht Central station
**Event Schedule**
**17:00** — Doors open & walk-in
**17:30** — Dinner
**18:30** — Welcome
*Atanas Aleksiev — Rabobank Engineering Services AWS team*
**18:35 -** Disasters don’t announce themselves—and recovery is only as good as your last backup strategy
*Rabobank Engineering Services AWS team*
**19:10 -** From Innovation to Enterprise: Scaling a Compliant, Microservices-Driven AWS Platform
*Rabobank ODP Next team*
**19:50** \- Break ☕
**20:00 -** EDSN as the Digital Backbone of the Energy Market: Use Case, Technology Choices and Challenges
*Energie Data Services Nederland*
**20:40** \- Drinks & Networking 🍻
**21:30** -Event ends
**Summary of the talks**
**Talk 1:** In this talk, we’ll walk through how Rabobank designs for failure using AWS Backup: from automated policies and immutable vaults to restore testing and ransomware protection. Because resilience isn’t just about having backups—it’s about knowing they work.
**Talk 2:** What happens after an innovation delivers a promising platform before it’s ready for enterprise scale, governance, and speed? That’s where our journey begins. You’ll hear how we evolved the architecture to support over 100 microservices powering digital lending on a compliant-by-design AWS environment. We’ll share the decisions we made along the way: what we kept and what we changed. Central to our approach is Infrastructure as Code to enable consistency, repeatability, and control on the platform. We’ll show how this foundation helped us automate operations, accelerate delivery, and meet strict compliance requirements. Join us to learn how to bridge the gap between innovation and enterprise readiness, turning a promising start into a scalable, secure, and developer-friendly platform.
**Talk 3:** EDSN acts as the digital backbone of the energy market, supporting essential data exchange processes across the energy market value chain. We explore this role, the underlying IT foundation, and the challenges and trade-offs that come with it.
Maakavond Meet Je Stad - Fijnstof en Temperatuur
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.*
Peer Satsang Gathering
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
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.
Monday Night - East - 54K
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\.
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.
Meetup Digital Freedom - SEDI & KERI Protocol and eIDAS-based EUDI Wallet
**Meetup – Comparing SEDI and the KERI Protocol with the eIDAS-based EUDI Wallet Model**
*(KERISuite: Free Open-source Identifier Systems Software under TrustoverIP Foundation that is anchored in LFDT)*
Monday June 29, 7:00 PM
Amsterdam - Social Hub Amsterdam City
A meetup about SEDI and its supporting KERI protocol, and how this compares to the EUDI Wallet (eIDAS-based) that will be introduced across Europe.
*A quick introduction* of Sheila Ghosh:
EDI-stelselarchitect for the EDI system in the Netherlands. Started in 2000 as an architect for the Dutch government and was the architect for the first version of DigiD and MijnOverheid.
Bio below, more on [LinkedIN](https://www.linkedin.com/in/sheilaghosh/).
*A quick introduction* of Henk van Cann:
KERI Foundation, KERICONF 2026 and onwards, contributing to LFDT-TrustoverIP with documentation and educational resources.
Lagos, Portugal, and Haarlem, The Netherlands
Bio below, more on [LinkedIN](https://www.linkedin.com/in/henkvancann/).
### In short
* **SEDI** = Model legislated in the State of Utah (US): *State-Endorsed Digital Identity*. The state endorses a digital identity, while the citizen remains in control.
* **KERISuite** = technical foundation for secure, self-controlled, persistent, cryptographically verifiable digital identity.
* **eIDAS** = European legal framework for electronic identification and trust services.
* **EUDI Wallet** = the European Digital Identity Wallet under eIDAS 2.0, enabling citizens and organizations to store and share digital credentials.
### Relation between these concepts
SEDI and eIDAS/EUDI represent two policy approaches to digital identity: Some US states versus EU.
KERI/KERISuite can be seen as a possible technical infrastructure for implementing such models in a privacy-preserving, decentralized, and verifiable manner.
SEDI places more emphasis on individual sovereignty and state endorsement, Sheila: “while eIDAS/EUDI not only emphasizes EU-wide interoperability and legal recognition, but puts privacy, security and ease of use at its core. Building trust among European residents is an important part of broader adoption.”
The meetup is organized by the Permissionless Society Meetup Group and supported by the Linux Foundation Decentralized Trust (LFDT).
### Speakers
* Introduction to SEDI and the KERI protocol — Henk van Cann
* Presentation on the characteristics of eIDAS/EUDI from that perspective - Sheila Ghosh
Free entrance.
Doors open at 6:45 PM.
The meetup starts exactly at 7:00 PM. At 8:30 PM we'll have a drink and a chat.
Also announced here: [https://www.meetup.com/lfdt-netherlands/events/314921548](https://www.meetup.com/lfdt-netherlands/events/314921548)
**Meetup – SEDI en het KERI-protocol vergelijken met het eIDAS-gebaseerde EUID.**
Maandag 29 juni, 19:00 uur
Amsterdam (zie beneden voor de Social Hub Amsterdam City)
Een meetup over SEDI en het ondersteunende KERI-protocol en hoe dit zich verhoudt tot de EUID-wallet (eIDAS-gebaseerd) die we in Europa gaan krijgen.
Kort:
SEDI = State-Endorsed Digital Identity, wettelijk vastgelegd in de staat Utah (US). De staat “endorses” een digitale identiteit, maar de burger blijft zelf de identity provider.
KERISuite / KERI = technische basislaag voor veilige, zelfbeheerde, lang houdbare, cryptografisch verifieerbare digitale identiteit.
eIDAS = Europees juridisch kader voor elektronische identificatie en vertrouwensdiensten.
EUDI Wallet = de Europese digitale identiteitswallet onder eIDAS 2.0, waarmee burgers en organisaties digitale credentials kunnen bewaren en delen.
Samenhang:
SEDI en eIDAS/EUDI zijn twee beleidsmodellen voor digitale identiteit: VS versus EU. KERI/KERISuite kan worden gezien als een mogelijke technische infrastructuur om zulke modellen privacyvriendelijk, decentraal en verifieerbaar uit te voeren. SEDI legt meer nadruk op individuele soevereiniteit en de staat die goedkeurende ondersteuning geeft;
Sheila: "eIDAS/EUDI legt niet alleen nadruk op EU-brede interoperabiliteit en wettelijke erkenning, maar stelt privacy, veiligheid en gebruikersgemak centraal. Het opbouwen van vertrouwen onder Europese ingezetenen is daarbij een belangrijk onderdeel van de bredere adoptie."
De meetup wordt georganiseerd door Permissionless Society Meetup Group en ondersteund door de Linux Foundation Decentralized Trust (LFDT).
Er zijn twee sprekers:
Een introductie over SEDI en het KERI-protocol - Henk van Cann
Europese Digitale Identiteit Wallet: meer mogelijkheden online - Sheila Ghosh
Toegang is gratis. Deur open om 18:45 uur. Het begint precies om 19:00 uur.
Om 20:30 uur uiterlijk napraten met een borrel.
**Bio Sheila Ghosh**
Sheila Ghosh has been working on digital identity and government digitization for more than 25 years. She started as an architect for the Dutch government in 2000 and was involved in the first versions of DigiD and MijnOverheid.
Since then, she has helped many government organizations with digital identity projects and digital transformation. In this Meetup, Sheila will share her perspective on the European Digital Identity (EDI) Wallet, explain its core concepts, and discuss the standards that underpin it.
**Bio Henk van Cann**
1. MSc Management and Computer Science (1992) and BSc Water and Soil Management (1987)
2. Co-founder ‘Permission-less Society’ Meetups (2016-**today**)
3. Trainer of teachers at Blockchain Workspace (2016-2020)
4. KERI Suite documentation and education (2021-**today**)
5. Co-chair Concepts & terminology of Lunix Foundation Decentralized Trust /Trust over IP foundation (2023-2025)
6. Founding chairman of KERI Foundation LLC (2024-**today**)
7. Organizer of the KERICONF26 in Utah, US (2025-**today**)
Virtual Currency Events This Week
Discover what is happening in the next few days
[TURNHOUT] Freedom friday bitcoin meetup
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!
3D workshop in Apeldoorn
**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)
Exclusive Workshop invite with Victor Rentea
Spots are limited: [https://tickets.voxxeddays.com/event/workshop-victor-rentea](https://tickets.voxxeddays.com/event/workshop-victor-rentea)
**Build faster, smarter software with AI.**
Join an exclusive, fully catered workshop with Victor Rentea on Agentic Engineering in a small, focused group of engineers.
**Upgrade your development workflow to 2026.**
A hands-on day on AI Coding Agents: prompt & context engineering, multi-agent orchestration, spec-driven development, and self-improving skills.
Learn how engineers reach 2x–10x productivity and what it takes to get there.
**For:** all engineers (backend, frontend, QA, data, ops)
**Bring:** laptop with Claude Code + subscription (Pro is enough)
**The agenda of the day**
**Introduction**
* LLM Fundamentals: Predictions, Tokens, Context Window, Compaction, System Prompt, Model vs Agent Harness
* AI Pitfalls: Sycophancy, Hallucinations, Attention Dilution, Knowledge Cutoff, Premature Fixation
* MCP Tools – best-of
**Context Engineering**
* Evolving a Token-Efficient Project Memory
* AI Context Sharing across repos, teams, and company
* Skills and Custom Agents that self-improve
* Token-Efficiency Tricks: context hygiene, DRY, grep-logs antipattern
**Prompt Engineering & Orchestration**
* Prompt Engineering – does and dont’s
* Brainstorm, plan & generate a non-trivial change with AI
* Multi-Agent Orchestration Patterns: handover, reviewer, orchestrator, advisor,…
**AI Guardrails & Security**
* Functional Guardrails with State-of-the-art Acceptance Tests
* Code Quality Guardrails AI cannot circumvent
* Architecture Guardrails & Exact Summarisation
* APIs, C4 Model, sequence diagrams
* AI Supply-Chain Attacks Attacks and Agent Isolation Techniques
**Date:** Wednesday, July 1st (09:00 - 17:00)
**Location**: Utrecht (venue TBA)
**Price**: € 395,- (incl. lunch & drinks)
Spots are limited: [https://tickets.voxxeddays.com/event/workshop-victor-rentea](https://tickets.voxxeddays.com/event/workshop-victor-rentea)
UX Beers Antwerp June @ Craftzing
**Welcome to our June UX Beers in Antwerp!**
This time, we will host our event on Tuesday the 30th of June at Craftzing 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)
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
\#\#\# UX TALKS
**Talk 1:** **UX with AI: Did we all just get promoted?**
By An-Sofie Rombouts, Product designer @ Gorilla
Working in a startup often means designing without established UX processes. So with AI emerging, it can feel like a lifeline: faster prototyping, '*deeper*' research, and more concepts to explore. But somewhere between the third AI-generated prototype and losing the thread of your prompted designs, it can become painfully obvious what the impact is of designing with LLMs.
We're not executing anymore, we're reviewing, approving, and critiquing, like a manager.
This talk gets honest about what that actually means: the speed gains are real, but the cognitive debt is quietly compounding, and your future as a designer depends on understanding why.
Explore how designers can protect their cognitive depth, enhance their review capacity, and stay in control when the machine can almost draw anything.
**Talk 2:** **Growing UX in organisations that are not there yet.**
By Koen Peters, Designer at Namahn
More and more organisations are asking us to help build design expertise in-house, even putting together a design team for them. I have learnt that in such cases, you need to set aside your own biases and assumptions first: your neatly mapped-out methodology, your Figma dogmas and all the other things you as a design agency take for granted. The reality in these organisations is often very different: limited resources, no design culture and few or no trained designers on the team. Through a few client case studies, I will show how we have tackled such challenges. Organising a training in UX and design thinking is a good first step, offering a chance to get to know the team and identify which skills are already there and which are missing. I will also demonstrate tools and activities that we have used to help a team get started and become more aware of UX research and design. These include a script for choosing the right UX approach, skills assessment models to identify gaps and first steps towards creating a design playbook.
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
\#\#\# 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
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
\#\#\# 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)
\*\*\*
\#\#\# YOUTUBE CHANNEL
All our livestreams and talks are recorded and available on our [UX Belgium youtube channel](https://www.youtube.com/channel/UCno7V18T-EglYXprgrUZQ7A).
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
\#\#\# 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.
\*\*\*
The UX Belgium Meetup Team
IN-PERSON Book Club Meeting - 'THE SYMPATHIZER' - Viet Thanh Nguyen
'THE SYMPATHIZER' by Viet Thanh Nguyen
'The winner of the 2016 Pulitzer Prize for Fiction, as well as seven other awards, The Sympathizer is the breakthrough novel of the year. With the pace and suspense of a thriller and prose that has been compared to Graham Greene and Saul Bellow, The Sympathizer is a sweeping epic of love and betrayal. The narrator, a communist double agent, is a man of two minds, a half-French, half-Vietnamese army captain who arranges to come to America after the Fall of Saigon, and while building a new life with other Vietnamese refugees in Los Angeles is secretly reporting back to his communist superiors in Vietnam. The Sympathizer is a blistering exploration of identity and America, a gripping espionage novel, and a powerful story of love and friendship.'
***Please read the book and join us for a lively discussion (in English) about the contents during our afternoon book club meeting.***
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**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
Nimma.codes: 40ᵉ editie - Monthly meetup @ Deftpower
De *veertigste* monthly meetup van [Nimma.codes](https://www.nimma.codes/) alweer!
We zijn een cross-language user group voor software developers in de regio Arnhem-Nijmegen en komen elke laatste dinsdag van de maand samen om te praten over alles wat met software development te maken heeft. Wees welkom! (ook als je niet programmeert)
*Ditmaal zijn we wederom te gast bij Deftpower [Clean Tech Park Arnhem](https://cleantechparkarnhem.nl/).*
**Programma**
* **17:30 – 18:00** Inloop + food & drinks
* **18:00 – 18:45** Talk 1: [Tim Steenvoorden](https://github.com/timjs) \- De lambda calculus in moderne programmeertalen
* **18:45– 19:00** Pauze
* **19:00 – 19:45** Talk 2: [Deftpower](https://www.deftpower.com/) - [William van der Vegt](https://vegt.dev/) \- Van thuislaadpaal naar actor: kennismaken met schaalbaar sessiebeheer in \.NET Orleans
* **20:00 - 21:00** Netwerken
**Talk 1: Tim Steenvoorden (Open Universiteit en Radboud Universiteit) - De lambda calculus in moderne programmeertalen**
Eén herschrijfregel, geen types, geen geheugen, geen loops.
In 1936 definieerde Alonzo Church een rekenmodel van bijna irritante eenvoud die toch even krachtig is als een Turingmachine: de lambda calculus. Deze sessie is een reis van die wiskundige kern naar de code die je dagelijks schrijft.
We beginnen met pen en papier: lambda termen lezen, schrijven en reduceren. We gebruiken niets anders dan functies voor het bouwen van datastructuren. Vervolgens maken we de vertaalslag naar closures, higher-order functions, immutability en pipelines in talen als Java(Script), Python, Kotlin, Haskell en Rust.
Het doel is niet om morgen anders te programmeren. Het doel is om te begrijpen waarom moderne talen de afgelopen decennia steeds meer functionele concepten hebben overgenomen en wat de gemeenschappelijke wortel daarvan is.
**Talk 2: Deftpower - William van der Vegt - Van thuislaadpaal naar actor: kennismaken met schaalbaar sessiebeheer in .NET Orleans**
Ik ben van kleins af aan een echte techfanaat; thuis hobby ik met gadgets, servers en frameworks. Sinds een klein half jaar werk ik bij Deftpower, waar bedrijf, sector én techstack perfect bij me passen. Daarvoor vijf jaar bij Info Support, vooral voor de klanten Air Miles en Moba.
Vanuit die liefde voor tech vertel ik wat over .NET Orleans: het framework waarmee we bij Deftpower duizenden thuislaadpalen tegelijk beheren. Duizenden live, stateful verbindingen, elk met hun eigen sessie en toestand.
In klassiek .NET loop je dan al snel tegen locks en race conditions aan. In deze talk laat ik zien hoe we elke laadpaal als een actor modelleren met .NET Orleans, en zo schaalbaar bouwen zonder grote concurrency issues.
Inclusief een praktische kennismaking met het actor-model, voorkennis van Orleans is niet nodig.
**Locatie**
[Clean Tech Park Arnhem - Connector gebouw KB - 1ste verdieping.](https://maps.app.goo.gl/VcFWRSbF5fT6J2PB7)
Hiking the Heuvelrug (16 km) - FULL
The Dutch Heuvelrug is a hilly and sandy ridge, running from Hilversum in the north to Rhenen in the south. This National Park is covered in forest, heather and stretches of sand and dunes. On this hike, we will explore the Heuvelrug from Den Dolder. This area is mostly forested, perfect for a (hot) summer’s day!
**Where to meet**: we will meet at **10 am** at train station Den Dolder. We will return to the same train station around 3pm.
**This hike is fully booked.** [You may register on my website for a place on the waitlist.](https://rewildyourself.nu/dutch-nature-hikes/)
Virtual Currency Events Near You
Connect with your local Virtual Currency community
Columbus Bitcoin Meetup
*Sorry for the 2 month break but I had to deal with some family member health issues, but we are now back!!*
**LOCATION - THE DAILY GROWLER -**
**2812 Fishinger Rd, Upper Arlington, OH 43221**
Over the years, we’ve heard two requests constantly:
1. A place that was quieter and possibly private.
2. “I wish they accepted Bitcoin.”
We’ve finally found a solution to these requests with The Daily Growler. We’ll have access to their private room, and you’ll be able to pay your tab with Bitcoin.
Join us for a fun and relaxed social event! Enjoy delicious food and drinks as we chat about the latest news in the Bitcoin world. Everyone is welcome, whether you're looking for guidance, have questions, or just want to meet like-minded people. These social evenings are a great opportunity to make new friends and enhance your experience at the larger events throughout the year. We look forward to seeing you there!
PSA: If the attendee RSVP seems low, keep in mind that most of our attendees come from X and not [meetup.com.](http://meetup.com./) You are welcome to come and become a part of our online community.
Recordings of past guest speakers are available on our YouTube channel
[https://www.youtube.com/@columbusbitcoin](https://www.youtube.com/@columbusbitcoin)
Recruiting Virtual Mental Health Group Leaders!
We are recruiting new group leaders for virtual men's groups! Our primary groups are outdoor movement groups, but we are launching virtual groups for the state of Ohio and beyond and the groups will move outside in the spring, creating room for men's groups, women's groups and coed groups all over the country.
Read below to learn about our groups and click the links at the bottom to apply.
### **What is an Outdoor Empowerment Group?**
Our Outdoor Movement & Community Empowerment Groups are simple, guided experiences designed to help people reconnect with nature, themselves, and others. We combine some form of movement (hike, walk, run, bike, yoga, workout) and meaningful conversation within a simple community circle to create a space where individuals can support each other while prioritizing mental and physical well-being.
Whether you’re seeking stress relief, personal growth, or community, our groups offer everyone a unique and welcoming environment.
## **Why Join?**
* **Improve Mental & Physical Well-Being** – Movement, nature, and supportive conversations reduce stress and promote balance.
* **Feel Less Alone** – Build genuine connections with like-minded people in a safe, welcoming space.
* **Gain Clarity & Perspective** – Step outside daily routines and into a space designed for personal growth and reflection.
## **The Ideal Group Leader**
The ideal group leader
* Has a born-in passion for mental health, movement, connecting with nature and building community.
* Has 5 extra hours per week to dedicate to a meaningful cause for at least one year. Yes, you can leave any organization at any time and we can also ask you to leave, but we are building with legacy in mind and we need people who can commit and be ALL IN on this mission to build with us.
* Is independently financially stable with the ability to volunteer with no expectation of pay. This is a deeply beautiful journey of service that all participants commit to at Speak Your Mind.
* An ability to manage groups with high emotional intelligence and desire for human connection.
* An ability to self-motivate and market/promote their group on Facebook and other social platforms.
* Nature informed therapy or clinical therapists/psychologists a plus.
## **Our Impact**

Since launching, we have helped thousands find support, connection, and healing through our Outdoor Movement Groups. 100% of participants surveyed have reported:
* A noticeable improvement in mental clarity and emotional well-being.
* An increase in social connection and a sense of belonging.
* Said they would return again.
We believe mental health should be accessible, community-driven, and rooted in nature. Join us and take the first step toward a more connected, grounded, and supported version of yourself.
### **Why Our Groups are Donation-Based**
Our Outdoor Movement Groups are made possible through a donation-based model. This approach allows us to keep our events accessible to everyone, regardless of financial circumstances, while also ensuring that we can continue expanding our reach. It’s a great way to pay it forward and support the growth of this beautiful mission!
Every contribution helps us:
* **Cover Essential Costs** – Donations allow us to pay essential legal, marketing, insurance, and admin costs as well as nourish the important people who run the organization.
* **Grow Our Mission** – With your support, we can bring these healing experiences to thousands more people in the future and execute our long term plan to expand across the USA, affecting up to 500,000 people per year.
By choosing to contribute, you’re not just leading an event—you’re helping build a mental health movement that supports long-term well-being and connection for all during a severe mental health epidemic.
## **Come Join Us!**
We’d love to have you be part of this growing community of people prioritizing their mental health, movement, and connection.
🔹 **Visit Our Website to Learn More:** https://speakyourmind.men/joinusoutside
🔹 **Apply Here to Lead Your Own Group!** – https://form.jotform.com/taketimespeakyourmind/sym-group-leader-application
🔹 **Support the mission**: If you resonate with the mission and want to support, feel free to join a group before applying or donate to help us reach our goals to help more people! You can donate here: https://secure.givelively.org/donate/angels-for-angels/speak-your-mind
Please text Mario with any questions: (808) 855-8831
Columbus Bitcoin Social Meetup
*Sorry for the 2 month break but I had to deal with some family member health issues, but we are now back!!*
**LOCATION - THE DAILY GROWLER -**
**2812 Fishinger Rd, Upper Arlington, OH 43221**
Over the years, we’ve heard two requests constantly:
1. A place that was quieter and possibly private.
2. “I wish they accepted Bitcoin.”
We’ve finally found a solution to these requests with The Daily Growler. We’ll have access to their private room, and you’ll be able to pay your tab with Bitcoin.
Join us for a fun and relaxed social event! Enjoy delicious food and drinks as we chat about the latest news in the Bitcoin world. Everyone is welcome, whether you're looking for guidance, have questions, or just want to meet like-minded people. These social evenings are a great opportunity to make new friends and enhance your experience at the larger events throughout the year. We look forward to seeing you there!
PSA: If the attendee RSVP seems low, keep in mind that most of our attendees come from X and not [meetup.com.](http://meetup.com./) You are welcome to come and become a part of our online community.
Recordings of past guest speakers are available on our YouTube channel
[https://www.youtube.com/@columbusbitcoin](https://www.youtube.com/@columbusbitcoin)
Rays Of Light Spiritualist Church Service
Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel.
Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger.
Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life.
Please visit our Official Church Website (http://raysoflightchurch.com) for more information.
NFT AI ART Columbus
NFT's are here to stay folks!
This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more.
**PLUS**
This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.
Saturday Morning French Club
Bienvenue! We host a twice-a-month French conversation club at La Chatelaine on Lane. All levels welcome! Whether you're new to French or running for Président de la République you are welcome here! We often read plays together, play vocabulary games, and generally enjoy the delicious food available at La Chatelaine! We will be at the long table in the back of the restaurant. A bientôt!
BeComing Circle Initiates
http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg
Instructor - Crow, HPS
Class fee is $30 at the door or approved exchange
RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642.
Reservations made directly to Enchanted Elements will be added to the class list manually not online.
Private Instruction ~ Closed to the Public ~ Initiated Members Only
Please come prepared for ritual.
Blessings ~ Crow

















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