Hardwaretechniek

Want to mess with some electronics? Or perhaps contribute to HacDC's main group project? HacDC's latest event brings hardware projects to the community. We will focus primarily on the main project (Space Blimp!) but please feel free to bring some of your own projects to show off and work on!

📚 Do you love reading, but wish you had a structure and a community to share your insights with? Join our small circle of curious minds (just 4 members per gathering) as we come together for an hour of focused reading—in the calm setting of a library or the cozy atmosphere of a café. Here’s how it works: First part: Quiet reading on your own—bring a book you’re exploring, whether it’s philosophy, history, psychology, literature, or anything meaningful to you. Second part: We regroup and each person shares key takeaways, insights, or questions sparked by their reading. This sparks a structured yet free-flowing conversation around ideas, perspectives, and personal reflections. Why join? Add structure to your reading habit. Discover new books, authors, and ideas through others’ choices. Build real connections by sharing and listening deeply. Socialize around something meaningful instead of small talk.

A small team of AWS Solutions Architects not traditional software engineers, built AIRE Traffic Control (ATC), a production agentic AI platform now serving thousands of builders. We used AI at every stage: spec-driven development, AI-generated code, automated testing, and agentic workflows. In this talk, we'll share the real story, the architecture, the failures, the breakthroughs, and what we learned about driving adoption from 32% to 92% in 10 weeks. You'll walk away with practical patterns for building multi-agent systems, using AI-DLC methodology, and empowering non-traditional dev teams to ship production-grade applications.

Join your fellow Late Morning Hikers to celebrate (an early) start to summer! We'll meet at Alexandria Bier Garden to catch up, meet new friends, and compare notes on Summer hiking. We'll post a comment on this page with our whereabouts on the day of the event.

• What we'll do On https://blackecon101.podbean.com/ Thursdays at 6 pm. discussing the economy....

**Agenda:** • 5:00 PM - Doors Open (in-person attendees). • 5:30 PM - **Deep Dive into Claude Code** • 6:30 PM - Networking • 7:00 PM - Doors Close **Talk Overview:** **Deep Dive into Claude Code** Ever wondered what happens under the hood when Claude Code runs your next Android task? This talk dives into the internals of Anthropic's AI coding agent — its bootstrap pipeline and agent loop. You'll see how fork agents share prompt-cache prefixes to cut input token costs and how four-layer context compression keeps long conversations from exhausting the window. You'll leave with a mental model of how this production AI agent actually works. Whether you're building custom MCP integrations, orchestrating multi-agent tasks, or just trying to get more from the tool you use every day, you'll have a toolkit of patterns to apply to your own Android workflows. **Speaker**: Mohit Sarveiya **Speaker Bio:** Staff Android Engineer AirBnb & Google Developer Expert **How to find us:** 1680 Capital One Drive, McLean, VA 22102 We'll be located in C2 **100 D/E**. The area is publicly accessible. If you can't find it, you can ask the front desk for directions to the **C2 100 D/E** **Attending Virtually?** Zoom Link: [https://us06web.zoom.us/j/84509924569?pwd=jLXAAyOY94b9BARoiACKtKz16MoDi1.1](https://www.google.com/url?q=https://urldefense.com/v3/__https://us06web.zoom.us/j/84509924569?pwd%3DjLXAAyOY94b9BARoiACKtKz16MoDi1.1__;!!FrPt2g6CO4Wadw!LFvXbAXwA9nr_LdcnaIwoMGePe66Msg5rsnSUkUB9Z2ixCtXMfmUuOCTC5hZPsJVUdvuRVQrAUvdV-jdXQm6$&sa=D&source=calendar&usd=2&usg=AOvVaw16hb6F9SrCsaIabEet1HR7) Meeting ID: 845 0992 4569 Passcode: 754789 **Parking**: You can park at 1680 Capital One Drive; this garage has a sign indicating public parking. Or at the WEGMANS parking lot.

We are going to talk about the books we read—any books, from any genre. Whether it’s fiction or nonfiction, classic literature or something modern, everyone is welcome to share their thoughts, impressions, and favorite passages. It’s a relaxed and friendly conversation where we can discover new ideas and enjoy each other’s perspectives.

Join PSW Science® on THURSDAY June 11 at 8 PM as we welcome Earl Miller, Picower Professor of Neuroscience. During the question and answer period, in-person attendees and live stream viewers may ask the speaker questions, and in-person attendees may also engage with the speaker during the post-lecture reception. Refreshments are served. For more information on this meeting, please visit: https://pswscience.org/meeting/2537 The meeting will be held in the John Wesley Powell Auditorium, adjacent to the Cosmos Club. The Powell Auditorium is located at 2170 Florida Avenue, NW Washington, DC 20008. Use of the Cosmos Club is restricted to the Powell Auditorium, the entryway to the auditorium, and the restrooms immediately outside the auditorium. Please note there is no onsite parking available. PSW Science, founded in 1871, is one of the oldest scientific societies in Washington D.C. Now, over 150 years later, we celebrate the Society's rich history and contributions to scientific discovery and cross-disciplinary collaboration. For information on how to become a member of PSW Science and membership benefits, please visit https://pswscience.org/join/

Join us for an evening of world-class jazz at The Kosciuszko Foundation Washington, DC Center as we celebrate our valued members with a special performance by internationally acclaimed Polish pianist Mateusz Kolakowski, presented by Robert Swistelnicki. **Friday, June 12** **6:30 PM** **The Kosciuszko Foundation Washington, DC Center** **2025 O Street NW, Washington, DC 20036** A remarkable artist whose career spans prestigious concert halls and jazz festivals across Europe, the United States, Cuba, India, and Kenya, Mateusz Kolakowski is known for his extraordinary fusion of classical virtuosity and contemporary jazz innovation. His expressive improvisations, lyrical sensitivity, and dynamic artistry have captivated audiences worldwide. Kolakowski has performed at renowned venues including The Knitting Factory in New York, The Jazz Bakery in Los Angeles, and the Montreux Jazz Festival in Switzerland, sharing stages with celebrated artists such as Stanley Jordan and collaborating with jazz legend Dave Liebman. The evening will be hosted by Polish lyricist, composer, philosopher, and multi-instrumentalist Robert Swistelnicki, whose groundbreaking jazz-poetic projects have earned critical acclaim and recognition as some of the most innovative contributions to contemporary Polish jazz. Wine and refreshments will be served. Tickets **• $25 General Admission for Non-Members [HERE](https://www.eventbrite.com/e/friday-jazz-soiree-presenting-mateusz-kolakowski-piano-tickets-1990664783956?aff=oddtdtcreator)** • FREE for Kosciuszko Foundation Members (RSVP required: KFDC@thekf.org) Whether you're a devoted jazz enthusiast or simply looking for a summer evening filled with exceptional live music, this intimate concert promises a truly inspiring experience. Not yet a member? Join today and enjoy complimentary admission to this special event, along with year-round access to KF programs and benefits. Become a KF member **[HERE](https://thekf.org/become-a-member/)** We look forward to celebrating with you!

We will be playing two games of **Nemesis:** **Retaliation** with up to 4 players per game. All experience levels welcome. Expect the game teach to start promptly within the first 10 minutes. In **Nemesis: Retaliation** players take on the roles of highly trained marines, entering the alien nest with strict orders and the most advanced tools available. But will they be well-prepared enough to face the unrelenting horde that awaits them? Players must survive against overwhelming odds and the possibility of betrayal at every step. This is a semi-cooperative game in which you and your crewmates must survive on a ship infested with hostile organisms. To win the game, you have to complete one of the two objectives dealt to you at the start of the game and survive. You will find many obstacles on your way: swarms of Intruders, the poor physical condition of the ship, agendas held by your fellow players, and sometimes just cruel fate. Find [here](https://www.youtube.com/watch?v=vXRMfvCweLI&pp=ygUfaG93IHRvIHBsYXkgbmVtZXNpcyByZXRhbGlhdGlvbg%3D%3D) a how to play video on youtube. Find [here](https://awakenrealms.com/download) the rulebook. Note: Please remember to update your RSVP if you can not attend the event. By updating your RSVP when you can't make it other players on the waitlist will have a chance to attend. No-shows may make it harder to attend future meetups. Also, all library rules apply to this meetup event. Mainly that no food is allowed in the library. Covered drinks are allowed.

Title: An Easy Intro to Feynman's QED, Part 3: Electron-Photon Interactions Date: June 13 2026 Noon - 14:00 EDT Summary: In his second QED talk on May 16, Terry discussed how Nobel Laureate Richard Feynman kept Einstein’s idea of a photon as a particle, but replaced the photon’s singular path through space and time with an integral of all paths the photon could have taken. In this final talk, Terry adds Feynman’s critical concept of how photons interact with another incredibly common particle, the electron. He shows the resulting model, called QED, describes not only most everyday phenomena, but also issues such as why antimatter can be interpreted as ordinary matter traveling backward in time. Speaker: Terry Bollinger is a computer scientist with BS, MS, and Professional Degrees from the Missouri University of Science and Technology.

* **Would you like to look deeper into the source of life?** * **Do you want to find your own answers to everyday questions?** * **Singing HU can bring you Love, Happiness, and Stability** **You’re warmly invited to join us at our** **Friday HU Chant at 7:00 pm** **You will be welcome to chant out loud or simply listen, whatever is right for you. The chant lasts about 20 minutes, followed by brief contemplative time and conversation with others of like heart.** **Attend In-Person at:** **The Maryland Eckankar Center** **1738 Elton Rd., Suite 104** **Silver Spring, MD 20903** **(Doors open at 6:30 pm)** **For more information:** **Call or text: (301)439-2120** **MEC@eckankarmaryland.org** **Presented by the DC & Maryland Satsang Societies, Inc. Chartered Affiliates of ECKANKAR.** **Copyright © 2025 ECKANKAR. The terms ECKANKAR, ECK, EK, MAHANTA, SOUL TRAVEL, and VAIRAGI, among others, are trademarks of ECKANKAR, PO Box 2000, Chanhassen, MN 55317-2000 U.S.A.**

😀♠️❤️ A Spades Special - Cards in Downtown Silver Spring 😀♠️❤️ We are hosting another event in Downtown Silver Spring - at Comma's Food Hall inside City Place Mall. 😀 Enjoy a friendly night of Spades play, lots of laughs, and Friday fun. ♠️ Spades games will be the main event, from 6pm to 10pm! 🌯 Play cards, eat, drink, & socialize! Enjoy drink specials and variety of reasonably-priced restaurant options. 🌟 Get matched with a partner onsite. All skill levels are welcome. The fun starts at 6pm! 🍷 Happy Hour Specials all night! 🎶 A Live DJ will be playing music all evening 🚗 Parking available in Ellsworth Garage (connected to the venue through the Skywalk) 📷 See the photo section for details 🌜Join us for a night of card play and fun times! 🌛 🙏🏿 We will also be honoring our friend, Tony, we recently lost in the Spades community. 🙏🏿 <><><><><><><><><><><><><><><

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)

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.

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. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Thanks for being a part of the CABS Meetup Group! We meet @ the COFFEE UNDERGROUND on Indianola Avenue. We play many different games @ CABS - bring your own or play one of the OVER 2222 in our library. What are your favorite games? What was the last game you played? Hope to see and game with you soon! Check us out on Facebook! Doors open early on Saturday Mornings at 10am and around 4pm on Fridays if you are interested in learning new / simpler games ... or new to the hobby or just want to check us out come in early just after noon and we will show you around before the crowd grows. Stay for a game or two, an hour or two or for the day! Your first visit is free and after that it's $5 a meeting or you can join for the year! It's Your Move

## 🤝 Host Information A co-hosted event by ProductTank Columbus & Women in Product Columbus 💡 About the Workshop AI adoption is stalling across organizations — not because of a lack of motivation or tools, but because it's fundamentally a behavior design challenge. This hands-on workshop applies proven Behavior Design models and methods to help you move from a vague organizational wish to boost AI adoption to 3-5 concrete, testable interventions you can act on starting tomorrow. Whether you're a product manager, on a product team, or just someone trying to get AI to actually stick at work, you'll leave with a clear picture of what's worth focusing on, what to ignore, and how to drive real, sustained adoption — no guesswork required. 🛠️ What to Bring Laptop: Fully charged and ready to go. AI Assistant: Have your favorite AI assistant pulled up. (Dom will be using Claude, but feel free to use whichever assistant you prefer!) 🍕 Logistics & Perks Food & Drink: Pizza and drinks provided! Parking: Plenty of free spaces available on-site. ###

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. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).