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Yes! Check out mobile technology events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.

Discover all the mobile technology events taking place this week here. Plan ahead and join exciting meetups throughout the week.

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Mobile Technology Events Today

Join in-person Mobile Technology events happening right now

AWS Meetup @ Rabobank Utrecht
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
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
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
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
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
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 Digital Freedom - SEDI & KERI Protocol and eIDAS-based EUDI Wallet
*A quick introduction* of Sheila Ghosh: System architect 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/). **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 area (exact location to be announced) 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. ### 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. ### The 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 * European Digital Identity Wallet: more features online - 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/permissionless-society/events/314848909/](https://www.meetup.com/permissionless-society/events/314848909/) **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**)

Mobile Technology Events This Week

Discover what is happening in the next few days

Agentic Engineering - Patterns and Anti-Patterns by Victor Rentea
Agentic Engineering - Patterns and Anti-Patterns by Victor Rentea
The Rabobank Tech Community together with [CodeLab](https://www.meetup.com/codelabjug/) is organizing a Java meetup for our community. Victor Rentea will speak at Rabobank in the evening of July 2nd. 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. **IMPORTANT:** Due to Rabobank security measures, we need to present in advance an attendee list with everyone’s full names. This is partly because Rabobank is, well, a bank, but also related to safety measures in case of an emergency. That is why we need to ask you the following: If you do not use your real full name as profile name at Meetup.com, could you send us your full name in a private message? The attendee list presented to Rabobank will only be used for visitor's registration at the reception and will not be published anywhere, we only do this to comply with said safety measures. The meet-up will be held in a non-public area of the building. This means that without proper registration the security team will not be able to let you in. Hoping for your understanding. === **Agenda** 17:00 Walk in + Dinner 18:15 Talk 20:00 Drinks 21:00 Ending **Talk** **Agentic Engineering - Patterns and Anti-Patterns** A compilation of emerging patterns and common pitfalls observed in over 50 companies. From unhealthy context management, naive prompting, unvetted AI slop, and careless supply-chain to self-learning skills, sub-agent orchestration, AI guardrails, and backpressure. Join this talk to cut through the hype, learn from the early adopters of agentic engineering – see what works, what ships better code 3x faster in production, and what fails **Speaker** Victor Rentea is a Java Champion and an Independent Trainer delivering intense webinars for dozens of companies worldwide since 2014. His passion is Simple Design, Refactoring, and Unit Testing, about which he regularly talks at top conferences, but also to the European Software Crafters Community that he founded. On [victorrentea.ro](http://victorrentea.ro/) you can find his blog, best talks, training curriculum, live masterclasses, and social channels.
UX Beers Antwerp June @ Craftzing
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
Kintsugi workshop in Utrecht
Kintsugi workshop in Utrecht
**Modern and Authentic kintsugi workshop in Utrecht.** Choose from three options: * 1-Day Modern Kintsugi workshop-€60 * 2-Day Modern Kintsugi workshop-€96 * 4-Day Authentic Kintsugi workshop -€180 For all details, please visit my website. [https://japanworkshopnet.com/upcoming-workshops/](https://japanworkshopnet.com/upcoming-workshops/) Location: **CLAY TO PLATE** [Biltstraat 55, 3572 AG, Utrecht](https://www.claytoplate.com/) **Booking is essential**. Please contact me if you would like to participate in the workshop. Webiste: [https://japanworkshopnet.com/](https://japanworkshopnet.com/) Email: info@japanworkshopnet.com Mobile:0616059840
IN-PERSON Book Club Meeting - 'THE SYMPATHIZER' - Viet Thanh Nguyen
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.*** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **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
Japanese art_MAKI-E workshop in Utrecht
Japanese art_MAKI-E workshop in Utrecht
Maki-e is a traditional Japanese lacquer decoration technique. Techiniques are involved drawing pictures, patterns, and letters on the surface of lacquerware using lacquer, and then sprinkling and fixing metal powder, such as gold or silver, onto the surface. In our workshop, you have the opportunity to create maki-e designs using traditional Japanese patterns (wagara) or your own original designs. Then your canvas can be a glass cup or a glass picture frame. Join us for this unique Japanese art workshop in Utrecht. * Place: CLAY TO PLATE Biltstraat 55, 3572 AG, Utrecht * Price: three options you can choose from €56 pp(for a glass cup) €60 pp (for a glass picture frame) €76 pp (for a lacquerwares) Limited seats available. **Booking is essential for adequate preparations. If you've enrolled/registered on the Meetup app, we'll contact you through the app message. Kindly communicate with us accordingly, and refrain from showing up without prior contact. We appreciate your understanding** Website:[https://japanworkshopnet.com/ ](https://japanworkshopnet.com/) [MAKI-E workshop info](https://japanworkshopnet.com/maki-e-workshops/) Email: info@japanworkshopnet.com Mobile:0616059840
United Clusters of Europe: Solving Kubernetes Chaos with SUSE Rancher
United Clusters of Europe: Solving Kubernetes Chaos with SUSE Rancher
**SUSE X I-share:** **Sprekers:** * [Hugo de Vries](https://www.linkedin.com/in/hugo-de-vries/) (Solution Architect) * [Bert Boerland](https://www.linkedin.com/in/bertboerland/) (Account Executive) * [Keown de Koning](https://www.linkedin.com/in/keowndekoning/) (Head of Channel) **Beschrijving** ''Tijdens deze sessie nemen we je mee door het brede SUSE-portfolio. Van de betrouwbare basis van SUSE Linux Enterprise Server (SLES) tot multicluster Kubernetes-beheer met Rancher en zero-trust containerbeveiliging met SUSE Security: SUSE biedt een compleet, onafhankelijk open-source ecosysteem van besturingssysteem tot cloudtechnologieën. We starten met de basis van SUSE en kijken terug naar de ontwikkeling van een Duitse open-source pionier in 1992 tot een wereldwijde enterprise speler van vandaag. Daarbij prikken we door de marketingverhalen heen en delen we praktijkvoorbeelden van organisaties die het volledige SUSE-portfolio inzetten om complexe infrastructuuruitdagingen op te lossen. Ook laten we zien hoe klanten de overstap maken van een Amerikaans georiënteerde infrastructuur naar een Europees alternatief. Tot slot geven we een live Rancher-demo, waarin je ziet hoe alle componenten naadloos samenwerken om moderne IT-landschappen te beveiligen, beheren en schaalbaar te maken. Wat kun je verwachten: * **Het volledige SUSE-verhaal** Hoe een Europese open-source pionier een complete technologiestack heeft opgebouwd – van operating system tot Kubernetes. * **Meer dan alleen containers** Inzicht in het bredere portfolio (Linux & Cloud Native) en waarom dit aansluit bij de behoeften van moderne enterprises. Inclusief mogelijkheden om jezelf hierin te laten opleiden tot specialist. * **Praktijkvoorbeelden uit de markt** Hoe organisaties het volledige ecosysteem gebruiken voor stabiliteit, compliance en schaalbaarheid en waarom SUSE steeds vaker de nieuwe standaard wordt. * **Live demo** Zie het portfolio in actie en ontdek hoe SUSE de volledige keten verbindt: van infrastructuur tot en met de applicatielaag. Of je nu infrastructure architect, platform engineer of security specialist bent: sluit aan en ontdek waarom het SUSE-portfolio perfect aansluit op jouw moderne infrastructuurstack!'' *Het programma zal deze avond als volgt zijn:* * Vanaf 17.15 u: inloop * Rond 17.30/18.00 u: eten * 18.30 u: start sessie * 20.00 u: afsluiting We zien jullie graag dan!
Nimma.codes: 40ᵉ editie - Monthly meetup @ Deftpower
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)

Mobile Technology Events Near You

Connect with your local Mobile Technology community

NFT AI ART Columbus
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.
Data & Analytics Wednesday - Learning from Everyday Data
Data & Analytics Wednesday - Learning from Everyday Data
**Practical Curiosity: Learning from Everyday Data** How do we actually get better at utilizing our day-to-day data? Fancy dashboards and complex models might look nice and draw attention, but that’s not where most of us spend our time. In fact those shiny outputs frequently sit unused, while the real insights are drawn from the analyst’s daily practice. Sometimes it’s as simple and as powerful as noticing that a segment is shrinking, a channel is underused, or certain links keep getting all the clicks. There’s many different places that the spark of insight can come from, but you have to keep your head in the data and know where to look. In this session, we’ll explore real-world examples of how segmentation, testing, and click behavior can uncover practical digital marketing opportunities. You’ll leave with inspiration for your own use cases, along with a few simple ways to ask better questions, spot meaningful patterns, and make smarter decisions without overcomplicating it. **About Our Speaker:** [Elaine Armbruster](https://www.linkedin.com/in/elainearmbruster/) is a Director of Digital Experience at the [American Diabetes Association](https://diabetes.org/), where she focuses on using data and insights to create smarter, more effective digital experiences. A lifelong Columbus resident, she has built her career in email marketing and the broader digital user journey, and is finding she most enjoys working in the messy middle where systems, data, and big ideas don’t quite line up yet. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)
Christians in Tech - Meetup #39 @ Improving
Christians in Tech - Meetup #39 @ Improving
Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)
Cocoaheads
Cocoaheads
We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd
IxDA Chat n Pancakes
IxDA Chat n Pancakes
You can sleep in on the Sesquicentennial (observed), we’re shifting to the following Friday. But join the local UX community for a chat and some biscuits to catch up. If you were in CA for Figma Config, tell us all the lines and you can tell me how I can animate an SVG without coding it by hand, and why I’d even want to. Thanks to the team at Nationwide of supporting the group.
Azure CBUS July
Azure CBUS July
Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/
Columbus Arduino Raspberry Pi Enthusiasts (CARPE) (Check Location)
Columbus Arduino Raspberry Pi Enthusiasts (CARPE) (Check Location)
Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability.