Computer Networking

**Hey fellow AWS enthusiasts! ✨** This evening we'll takle our AWS costs! 💪🏻💸 We are happy to have **[Meisi Zhan](https://www.linkedin.com/in/meisi-z-52702b61/),** a Customer Facing Cloud Engineer @ codecentric, joining to walk us through **FinOps in Action with AWS Spot Instances**. Thanks to our friends at **[codecentric Nürnberg](https://www.codecentric.de/standorte/nuernberg)** for sponsoring the event with food and drinks and opening their wonderful offices for us! **📆 Tonight's Agenda** 19:00 - Welcoming **19:15 - Talk by Meisi followed by Q&A and knowledge sharing** 20:00 - Food, Drinks & Networking Looking forward to seeing you 👋🏻 **[Nora](https://www.linkedin.com/in/nora-schoener/)** & **[Frank](https://www.linkedin.com/in/frankprechtel/)** \-\-\- The talk ⤵️ **FinOps in Action: Real-World Cost Optimization using AWS Spot Instance** The talk is about our AWS funded PoC project, this project demonstrates the implementation of FinOps principles by leveraging AWS Spot Instances to achieve significant infrastructure savings without compromising workload performance. It provides a technical blueprint for orchestrating Spot Fleets and Auto Scaling groups, offering a practical approach to data-driven cloud financial management. The speaker⤵️ **Meisi Zhan** is a distinguished Customer-facing Cloud Consultant and Evangelist at codecentric, bringing over eight years of expertise in IT consulting and software engineering. As a highly experienced Pre-Sales Engineer and Solution Architect, she has a proven track record of building trusted advisor relationships and driving customer success across multi-cloud environments, including AWS, Azure, and GCP. Meisi excels at translating complex technical challenges into quantifiable, TCO-justified business value and viable technical architectures. Her approach focuses on Transformation Consulting, DevOps, and FinOps, ensuring that cloud-native solutions are both innovative and financially optimized. Get in Contact with Meis through [LinkedIn](https://www.linkedin.com/in/meisi-z-52702b61/). \-\-\- **Please note:** At the event, photos and videos will be taken for marketing purposes both by our hosts and our location sponsors. We try to offer a hybrid experience by providing a video stream of the talk. There will be no recording published after the event. Please also keep in mind, that we try our best effort to provide a good streaming experience. We don't offer a professional stream, so delays, technical issues or other interference are a matter to be tolerated.

Kom naar het HaHaHo Makers Lab Utrecht voor een avond vol kennis & ervaringsdelen en maken, met de focus op elektronica met microprocessoren zoals Arduino & Raspberry Pi, LED’s en meetapparatuur. 19:00 Inloop + opzetten apparatuur 19:45 Standup: wat wil iedereen doen en/of leren deze avond? 20:00 Parallelle activiteiten: – startactiviteiten voor nieuwe deelnemers (Arduino, soldering, meetapparatuur, etc.) – onderlinge kennisuitwisseling adhv de wensen uit de standup – werken aan het gezamenlijke [PraatPaal-project](https://github.com/hadoopmarc/hahaho-interactive-pole) – werken aan je eigen project – ordenen/markeren van de ladenkasten met elektronisch componenten 21:30 Start met opruimen 21:45 Einde en verlaten van de Bibliotheek Wij zijn meestal met een groep van een kleine tien (er is ook nog een whatsapp aanmeldingslijst). Een laptop is niet noodzakelijk maar komt vaak van pas! We vragen een vrijwillige donatie van €5,55 per avond om de inventaris met apparatuur en elektronische componenten op peil te kunnen houden. English 19:00 Room available for setting up equipment 19:45 Standup: what are the participant’s plans and wishes for the evening? 20:00 Parallel activities: – starter activities for new participants (Arduino, soldering, measuring equipment, etc.) – sharing knowledge as follow-up on the plans and wishes expressed during the standup – working on the community [Interactive Pole project](https://github.com/hadoopmarc/hahaho-interactive-pole) – working on your individual project – sorting the chest of drawers with electrical components 21:30 Start decluttering the room 21:45 End: leave the Public Library Most evenings see a group of about 10 people (there is an additional whatsapp list). Bring your laptop if you want to program microcontrollers! We ask for a voluntary donation of €5,55 per evening to maintain the inventory with equipment and electrical components.

***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

If you are living in The Netherlands, by now, you may well have noticed the amount of open water. If you enjoy cycling in the city, you may wish to feel safer as you navigate the bridges and canals. And you may also want to get ready for visiting the beach, pools or the many lakes this summer. Learning how to swim takes approx 1 year and it all starts with the very first lesson. New comers enroll via our website and pay € 30,50, this is the first lesson and a goody bag. After the class you agree with the personal swim coach how to continue to obtain your final objectives. Enrolling is only possible via [www.your-personal-swim-coach.nl ](https://www.your-personal-swim-coach.nl/)hence a rvsp via meetup is not enough.

A great ride along the Vecht and Gein rivers. You will love this route. Please ride single file along the winding river as there can be cars around each corner. **Route:** https://connect.garmin.com/modern/course/441606271 GPX: https://drive.google.com/file/d/17-T_pT_GH3QKSFcH1WWgfArvxSdAkVzO/view?usp=sharing **Afterwards:** Drinks at Polder https://maps.app.goo.gl/tbt5DDG7YLU3uWvaA **Rules:** \- Download the route to your cycling computer so you can always find your way home \- Make sure to arrive on time \- Before you ride\, decide as a group how you want to ride: you can split up in a fast and a slow group or stay together\, but make sure to discuss what pace you are going to ride and whether you are going to wait if someone is slower than the group\, or not\.

Samen sporten, gewoon voor de fun, elke week een divers programma, met allerlei verschillende sporten. Je hoeft niet de beste te zijn, maar wel zin hebben om samen te spelen en te leren. Tijdens een training doen we verschillende spelletjes, basketbal, voetbal. volleybal, spikebal, honkbal. Kom je ook, de bal ligt bij jou!! Eerste keer meedoen is altijd gratis, daarna kan je beslissen of dit voor jou is, of niet!! Dus kom een keer proberen. Kan je niet op deze dag, we sporten ook op andere dagen nl Zondag om 9:30 of Maandag om 20:30 Stuur mij een berichtje als je op die dagen een keer wil proberen! The amount of people rsvp'd to this game doesn't match the real number of people at the event, as Meetup is only used for promotion purposes.

**In het kort:** 💻 **Wat:** Live workshop @ NOVI Hogeschool 👥 **Wie:** Studenten van NOVI én iedereen die coderen wil ervaren 🧠 **Onderwerpen:** Git, GitHub , HTML, CSS, React en samenwerken 📅 **Wanneer**: Woensdag 10 juni 2026, 14:00 uur (tot uiterlijk 17:00) 📍 **Waar:** Op locatie! Newtonlaan 247, Utrecht (4e etage) **Welkom bij Coding Wednesday!** Samen duiken we in de creatieve wereld van programmeren. Elke maand is er een challenge of workshop gericht op coderen. **Wat doen we deze keer?** We bouwen een portfolio webpagina met HTML, CSS en React (Javascript framework). Een begin hebben we al. We werken samen aan dezelfde codebase om componenten toe te voegen en te verbeteren. Dit doen we met een versiebeheersysteem -> Github. **Heb ik voorkennis nodig?** Het is handig als je al wat code hebt geschreven hebt in eerdergenoemde programmeertalen en Git hebt geïnstalleerd en een Github account hebt. Zo niet, geen probleem. Je kan ook alleen meekijken, of samenwerken met iemand uit de groep. **Wat heb je nodig?** * Je eigen laptop met WiFi aansluiting * Installeer een **code editor**. Novi studenten kunnen Webstorm, Pycharm of IntelliJ gebruiken. Anders is [VSCode](https://code.visualstudio.com/download) een prima editor (gratis). **Is er een minimum aantal aanmeldingen?** Coding Wednesday gaat door als er 5 aanmeldingen zijn of meer. Dus vergeet vooral niet om je aan te melden :) Mocht het niet doorgaan, laten we dit een dag van tevoren weten Tot snel!

**\*\* Let op: Registratie van deze conferentie loopt niet via deze site! \*\*** **\*\* Registratie link:** [Registration | CollabDays Netherlands 2026](https://www.collabdays.org/2026-nl/register/) **\*\*** De CollabDays Netherlands is onze jaarlijkse **Microsoft 365** & **Power Platform** community 1-daagse **GRATIS** conferentie. Een dag om jezelf onder te dompelen in Teams, SharePoint, Power Platform, security en alle nieuwe ontwikkelingen op dit vlak. CollabDays zijn non-profit conferenties, voor en door de community georganiseerd, en bieden gratis toegang voor alle bezoekers. Dit evenement brengt experts en enthousiastelingen samen om te leren, netwerken en kennis uit te wisselen over alles wat met Microsoft 365 en het Power Platform te maken heeft. Of je nu een professional, ontwikkelaar, eindgebruiker of gewoon nieuwsgierig bent, dit evenement is perfect voor jou! Binnen een dag ben jij bijgepraat over de laatste ontwikkelingen en heb je een hoop nieuwe inspiratie opgedaan! **Evenement details:** * 🔥**Naam**: CollabDays Netherlands * 📆 **Datum**: zaterdag 13 juni 2026 * 📌 **Locatie**: Van der Valk, Vianen * 💻 **Website**: [https://www.collabdays.org/2026-nl/](https://www.collabdays.org/2026-nl/) Registratie voor deze editie is geopend, schrijf je nu snel in: [Registration | CollabDays Netherlands 2026](https://www.collabdays.org/2026-nl/register/)

**Um was geht es dieses mal?** **Barrierefreiheit automatisiert testen - Anna Maier (codecentric)** "Barrierefreiheit – ein Produkt für alle nutzbar machen - ist ein komplexes Thema. Bei der Entwicklung barrierefreier Software müssen viele Anforderungen berücksichtigt werden. Ein großes Problem ist, dass das Testen ein weitgehend ein manueller Prozess ist. Das kollidiert mit den schnellen Veröffentlichungszyklen moderner Software. Wie können wir unser Tempo beibehalten und gleichzeitig sicherstellen, dass das Produkt zugänglich bleibt? In diesem Vortrag gebe ich euch das Handwerkszeug, um euch in Hinblick auf Barrierefreiheit besser abzusichern. Dabei lernen wir zunächst automatische Tools und ihre Möglichkeiten und Grenzen kennen. Danach schauen wir auf Strategien zum Schreiben eigener Tests mit gängigen Testframeworks. Abschließend schauen wir uns an, wie KI uns in dieser Hinsicht unterstützen kann" **Hybrides Setup!** Wir freuen uns, euch bei uns in den Räumen der codecentric AG in Dortmund willkommen zu heißen. Vor Ort versorgen wir euch mit Snacks und Getränken und freuen uns gleichzeitig über interessante Diskussionen und einen guten Austausch. Für alle, die es nicht zu uns ins Office schaffen, werden wir das Meetup Hybrid durchführen. Der Stream beginnt ca. 10 Minuten später, damit wir vor Ort ausreichend Möglichkeit für persönliches Kennenlernen haben. Den Live-Stream findet ihr auf dem [YouTube-Channel](https://www.youtube.com/@codecentricAG) der codecentric AG. **Wichtig - Absage bitte rechtzeitig:** Wir bestellen das Essen bereits 3 Tage vor dem Meetup. Falls ihr doch verhindert sein solltet, bitten wir euch um eine rechtzeitige Absage. Das ist wichtig, damit wir nicht unnötig Essen verschwenden müssen. Vielen Dank für euer Verständnis! **Anreise:** Per Zug: Vom Dortmunder HBF sind es ca. 10 Minuten zu Fuß. Mit dem Auto: Rund um das Office gibt es einige Parkflächen, dazu befinden sich in dem Parkhaus der Thier-Galerie weitere Parkplätze.

This hike is one you don’t want to miss! It offers a lot of variety on a relatively short distance. From train station Rhenen, we will cross the river and walk along it for a while, until we cross it again by ferry, taking us to the beautiful wetlands of the ‘Blauwe Kamer’, where we might encounter all kinds of wildlife. After a break, we will continue to climb the Grebbeberg, a 52 meter peak in the hilly forest, towering above the river. We will then return to Rhenen, with the option of visiting this pittoresque old town. **Where to meet**: we will meet at **10.30am** at train station Rhenen. This train station can be reached by Sprinter train from Utrecht Centraal. **This hike is fully booked.** [You may register for a place on the waitlist on my website.](https://rewildyourself.nu/dutch-nature-hikes/)

​Join **AI Signals** and **LangChain Community London** for an evening of technical talks, practical insights, networking, and community conversations around the future of AI applications. ​This meetup brings together developers, founders, researchers, students, product teams, and AI builders to explore how modern AI systems are being designed, deployed, and scaled in the real world. ​The evening will focus on **AI agents, RAG pipelines, LangChain, production-ready AI workflows, storytelling in AI, and practical lessons from people actively building with emerging technologies**. *** ## ​Schedule ​**6:00 PM** — Doors open, pizza, drinks, and networking **6:30 PM** — Welcome ​**6:35 PM** — Anshul Yadav : AI Engineer @ Li & Fung The Agent Is Not the Product: The Harness Is ​**7:00 PM** — Break ​**7:15 PM** — TBD ​​**7:45 PM** — **Lightning Talks: TBD** ​**8:00 PM** — Community networking and closing remarks **9:00 PM** — ​Wrap-up, drinks at [Angel London](https://g.co/kgs/3FVpa2i?utm_source=luma) *** ## ​What to Expect ​The evening will feature technical and practical discussions around: * ​Building reliable AI agents and intelligent workflows * ​RAG pipelines for real-world applications * ​Moving AI prototypes into production * ​Storytelling, design, and user experience in AI products * ​Lessons from AI builders, engineers, product leaders, and community speakers ​Whether you are experimenting with AI agents, deploying RAG systems, exploring LangChain, or simply curious about where AI development is heading, this meetup is designed to help you learn, connect, and contribute. *** ## ​Who Should Attend ​This event is ideal for: * ​Software engineers * ​AI and ML practitioners * ​Product managers * ​Founders and startup teams * ​Researchers and students * ​Designers working with AI products * ​Anyone interested in building practical AI applications ​You’ll gain insight into the tools, architectures, and workflows behind the next generation of intelligent applications, while connecting with the growing London AI and LangChain community. *** ## ​Important Information ​Please note that attendees will not be able to enter the venue before **6:00 PM**. ​RSVPs will close **24 hours before the event**. You may be unable to register after this time, but remote viewing will be available via our YouTube channel. ​Our hosts may require a list of all attendees. Please register using a name that matches your **government-issued ID or bank card**. If your registered name does not match your ID, we cannot guarantee entry to the building. ​If you can no longer attend in person, please un-RSVP so your space can be made available to someone else. *** ## ​About AI Signals ​**AI Signals** is a community focused on exploring the latest developments in artificial intelligence, emerging technologies, and practical AI adoption. It brings together builders, learners, and professionals interested in understanding how AI is shaping the future of work, business, and society. *** ## ​About LangChain Community London ​**LangChain Community London** brings together developers, AI engineers, researchers, and technology enthusiasts interested in building applications powered by large language models, agents, retrieval-augmented generation, and production AI systems. *** ​A huge thank you to our speakers, sponsors, hosts, volunteers, and community members for making this event possible. ​**Secure your place and join us for an evening of learning, collaboration, and AI community energy in London.**

## 🎨**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! 😉** ✨✨✨✨✨✨✨ ## 🖌️**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!** 💐🥰 ✨✨✨✨✨✨✨ ### 👩🏻‍🎨**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)** 🍀 ✨✨✨✨✨✨✨ ### ☕**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. ✨✨✨✨✨✨✨ ### **🎟️ 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 ✨✨✨✨✨✨✨ ## **See you to Paint, Draw, and drink together!🌟☕🍷🍪🍰**

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. So please RSVP for a head count!

**PLEASE BUY TICKETS THROUGH EVENTBRITE. RSVP THROUGH MEETUP IS NOT A TICKET PURCHASE CONFIRMATION.** Strive welcomes you to 'General Business Networking', Columbus' hottest networking event! We are set in the perfect central location in Downtown for all to join. Are you interested in business? Want to elevate your career? Meet Consultants, Analysts of all types, Bankers, Software Engineers, Entrepreneurs, and more who are active in the space or are eager to get started. **\*\*This will be a multi-vertical event\*\*** **There will be professionals with backgrounds in the arts, finance, tech, real estate, healthcare, and more. Come with an open mind, and leave with connections that wouldn't be possible otherwise!** Pack some business cards and come with an open mind! Meet your future business partners, employers, coworkers, investors, and friends. You don't want to miss this opportunity to expand your network and create a brighter future. We will have a space for our event to check-in. The event will go from 6:00 PM - 8:00 PM (feel free to come at any point in this timeframe). Name tags will be provided. Business casual dress code. Job fair attire. **Remember, it's not who you know, it's who you meet tomorrow!** We look forward to meeting you at the event! Sincerely, Strive Networking Team *Refund requests are permitted up to 24 hours after purchase, so long as we are not within 48 hours before the event start time. Refunds will be made in full and repaid to your method of payment. Note that we are unable to reimburse PayPal fees.* *Disclaimer: By attending Strive Networking events you agree to photos/videos taken during the event being used to promote future events.*

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd