ROS (Robot Operating System)

A community-based middle school/high school robotics team. Join FROGbots, a community-based middle school/high school robotics team, for a hands-on robotics experience: Drive the team's outreach robot, see their competition robot, and learn more about the team and robotics.

**Location**: Tysons-Pimmit Regional Library (Virginia) Conference Room A game development **Working Session** involves 3 key parts: 1. Tell people what you're going to do 2. Actually do stuff 3. Show people what you did That's what we'll be doing for this meeting. We'll briefly tell each other what we're going to do, then work on our projects, then at around 5:30 wrap up to show each other what we did and chat for a bit. You don't have to stay the whole time, so feel free to drop in and out as you have time. All game development skill levels welcome. Whether you're bringing a game you're trying to ship in a month, or you're just planning on following some tutorials or trying out a new tool to improve your skills, use this time to make progress. Working sessions also train you to think about the scope of your work: pick a chunk of work that you can complete in the time that we have. That way you can end the working session with a feeling of accomplishment! **What to bring**: Laptop, Charger, maybe a power strip if you have one handy, any other game development tools you need. Try to download any software you need before the working session. There is Wifi at this location, but it may be slow if you have to download any large files.

**Join a work party to organize the Velocity Bike Co-op warehouse, usually on the first Saturday of each month from 9 a.m. to noon.** Mike Pattisall, Velocity's business manager, will guide volunteers in improving the space where we work. You don't need to be there the whole time. Just come when you can, and wear clothes you don't mind getting dirty with bicycle grease. **Help keep the warehouse organized so there's space to work on bikes on volunteer nights!** Please note that volunteers under 18 are required to have a parent or guardian attend the beginning of their first volunteering session in order to sign a waiver for them, and volunteers under 16 are required to have a parent or guardian present with them during all the time they spend volunteering at Velocity.

Come exchange Asian Languages that you speak! ***GRAB A DRINK AND YOU WILL BE ALL SET TO FLEX YOUR LANGUAGE CAPACITY. YOU NEED TO GET AT LEAST A DRINK OR FOOD :) To get the event going and show support. We know that you like our events. P.S. : We have non-alcoholic drinks as well.*** We have a tiny venue and we hit capacity often and early arrival is suggested. We have the discretion to decide entry. We will assign tables for represented languages. All languages are welcome! However we don't guarantee the availability of a partner in that particular language, you would like to exchange. As you all remember well, this event used to bring out hundreds of people every week. However, it was discontinued last year for obvious reasons and we couldn't gather that many people now, because of restrictions. Hence, we are downsizing and caping the number of attendees. We have super limited spots and advance ticket purchase is required. ***AFTER THE HAPPY HOUR, WE HIT THE DANCE FLOOR! BRING YOUR DANCING SHOES, WE WILL DANCE THE NIGHT AWAY!*** HOW IT WORKS : We will try to assign tables for each represented languages and will direct attendees to their respective tables accordingly. All languages are welcome! However we don't guarantee the availability of a partner in that particular language, you would like to exchange. Rules to abide : 1. Event is free and 21+ (bring ID). 2. Be respectful to your counterparts and give them a chance to exchange with others as well. 3. We all are native speakers of one or two languages and be willing to help others and try to accommodate as much as possible. 4. If you don't speak the other person's required language, LEAVE THEM ALONE. 5. Rude or aggressive members are removed from the group at an organizers discretion. 6. This is a face-to-face language exchange event. DO NOT try to arrange an online meeting, by using the comment box or direct message. 7. Most of our members complained about people writing in the comment box. Since it sends notification to all attendees. If you have any questions, send a message to the organizers. Don't write in the comment box. 8. We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via (info@merevents.com). 9. When you get there, we will greet you and take you to your respective group. 10. Don't be shy of your local languages. We have diplomates assigned to different countries, who would love to practice your languages. 11\. Be patient for the first 30 minutes\, up until we form your respective language group\. 12\. We will have a registration station and check you in\. You ought to have register on Meetup for a free entry\. Otherwise\, you will be subject to a cover charge\. 11. 13\. This is mainly a social for Intermediate/Advanced/Native Speaker\. It is not as such to learn a language\. Beginners\, if you want to learn a language\, reach out to us \(info@merevents\.com\)\. We have a school and will arrange you a class\. 12.

Sign up to help with customer service at our Arlington shop! **If this is your first time doing customer service at our shop**, **please direct message Elizabeth here via MeetUp** so she can ensure someone can be there to orient you. **What you'll do:** * greet customers * manage customer traffic * help customers find basic bike parts in our store * direct customers to the mechanics if they need a bike repair * help customers find a bike that fits them * set customers up to test ride bikes * work the register to conduct customer payments **Qualities of a good volunteer for this role:** * customer service oriented * willing to work outside most of the shift * able to work on their feet most of the shift * comfortable working in a faced-paced environment * open to a steep learning curve with a rewarding experience the more times you volunteer * excited to learn about Velocity Bicycle Cooperative and become part of our volunteer team that keeps our wheels turning! **What to Bring/Attire** * A water bottle & snack * Wear comfortable shoes and clothes appropriate for the day's weather * Sunscreen and a baseball hat if it is sunny **Age Requirements:** If you are under 18, you must bring a parent/guardian with you to the orientation to sign the waiver.

What would it mean to take the possibility of machine consciousness seriously? To approach it as a question that may be studied with rigor? At this DC Digital Minds gathering, group organizer **Jessie Mannisto** will report back from the **Founding Assembly for Machine Consciousness Research** in Berkeley, CA, where researchers and thinkers are working to develop the machine consciousness hypothesis into something more scientifically useful. We’ll talk about what kinds of evidence might support hypotheses of machine conscience or sentience, what concepts researchers are using, where the major uncertainties are, and why these questions may have ethical, social, and policy implications as AI systems become more capable and socially present. This will be a casual conversation with a little structure: Jessie will give a short report-back from the conference, followed by open discussion. No technical background required -- just curiosity, good faith, and a willingness to think carefully about a strange and important frontier. Optional Pre-Read: [The Machine Consciousness Hypothesis](https://cimc.ai/cimcHypothesis.pdf)

Join us in the Sangha Hall and let us appreciate (in advance) all the volunteers who will be helping us with the Obon Festival in July! All are welcome to attend and enjoy a delicious breakfast of spam, eggs, and rice. Our Obon Team Captains will be on hand to share more information about the upcoming festival and how you can assist us in making it a success!

Date: June 7 2026 Sunday 10:00 am - Noon EDT Full title: Machine Learning for Reliable Quantum Computing: An Algorithm–Hardware Co-Design Perspective Summary: Reliable quantum computing requires co-design across the full stack, including algorithm structure, compilation, and execution, rather than isolated optimization of any single layer. This talk presents a unified framework in which these layers are jointly optimized under realistic hardware constraints. Structure-aware compilation exploits algorithmic interaction graphs to reduce circuit depth; joint optimization across mapping, term ordering, and algorithm parameters yields significantly improved success probability; and execution-layer analysis reveals that error mitigation effectiveness depends critically on circuit symmetry and native gate choice. While demonstrated on superconducting quantum processors, the underlying co-design principles are potentially transferable across architectures. Building on this foundation, the talk highlights machine learning as the key enabler for closing the feedback loop: data-efficient, parameterized noise models learned directly from workload execution data achieve substantially improved predictive fidelity over vendor models without the overhead of dedicated characterization. These insights situate the co-design perspective within the emerging framework of quantum deep learning. In this broader setting, the talk also presents an operational definition, a unifying taxonomy, and a benchmarking protocol grounded in explicit resource contracts. Speaker: Dr. Yanjun Ji has an interdisciplinary research background in Physics and Computer Science. In 2020, she completed my Master's degree in Theoretical Physics at Saarland University. In 2024, she earned her Ph.D. in Computer Science at the University of Stuttgart. She is currently a postdoctoral researcher at Forschungszentrum Jülich. She is committed to interdisciplinary research at the cutting-edge convergence of quantum computing and artificial intelligence. Her research encompasses both foundational theoretical investigations and the development of practical applications, aiming to serve society and benefit humanity. Moderators: Dr. Pawel Gora, CEO of Quantum AI Foundation [Quantum AI Foundation](https://www.qaif.org/ "https://www.qaif.org/") Dr. Sebastian Zajac, member of QPoland [QPoland - QWorld](https://qworld.net/qpoland/ "https://qworld.net/qpoland/")

DC Code and Coffee is an inclusive, informal co-working session. It's community-led and community-run by devs, for devs. People of all skill levels attend. Whether you’re dev-curious, aspiring, or a professional developer, we’d love to have you! Come chat or learn to code on a Sunday afternoon with coffee and cool-inclusive people. Bring your laptop! We typically meet every month on the weekend. **Join our online community!** For all things Tech in DC and to get latest updates and tech events from the DMV area, join the [DCTech Slack](https://dctech.chat/). All DC Code & Coffee announcements are in the #dccodecoffee channel **How it works** Near the beginning of the event, we do an introduction circle. You say your name, what you can help others with, and what you would like help with. You can also share job opportunities. After the introduction circle, everything is self-organized.

This is our weekly training session. NOVA Jujutsu is a self-defense focused system incorporating Geri (Kicking), Atemi (Striking), Uke (Blocking), Tai Sabakai (Body Movement), Tai Hodoki (Escapes), Kansetsu Waza (Joint Locks), Nage Waza (Throwing), Shime Waza (Choking), Katame Waza (Grappling), Tantojutsu (Knife), Bojutsu (Bo), Kenjutsu (Sword), and Kata (Forms). Come on down to a class and see for yourself what this group has to offer. You will get a great workout! You will have an awesome learning experience! You will meet some good people! We look forward to meeting you. See you there. TAGS: japanese, martial arts, self-defense, jujutsu, jujitsu, juijitsu, bujutsu, defense, karate, koppo, kenjutsu, bojutsu, tantojutsu

Let’s talk about how you use AI, what you love and hate about it, learn from others and connect with your tribe!

Let's get our 80s nerd on, BY THE POWER OF GREYSKULL!!!

**Register Here:** https://reg.experiences.redhat.com/flow/redhat/4102500/rhexpressregistrationapp/page/expressregistration?sc_cid=RHCTN1260000485001 **Automate at the speed of mission** Today’s landscape demands a shift in strategy. One where automation isn’t just a tool, but the engine driving modernization for your organization or agency. Join Red Hat experts and your peers at **[Ansible Automates in Washington, DC](https://reg.experiences.redhat.com/flow/redhat/4102500/rhexpressregistrationapp/page/expressregistration?sc_cid=RHCTN1260000485001)** for a full day of conversation on building an automation strategy that scales. We’re moving beyond isolated tasks to focus on the topics that define modern IT: * **Operational velocity and scale:** Deploy faster and eliminate manual bottlenecks by standardizing on Red Hat® Ansible® Automation Platform as the backbone of your IT estate. * **Continuous compliance and resilience:** Trade audit anxiety for automated governance, stay ahead of configuration drift, and minimize human error to ensure mission continuity. * **AI-driven operations:** Put data and intelligence into automated action with the latest advancements in Ansible Lightspeed and gen AI. **What you'll walk away with** You'll leave with real, applicable insight from technical experts, peer practitioners, and Red Hat product leadership, including a 1st-look at what's new in AAP 2.7. **Who should attend?** **#AnsibleAutomates2026** is for IT business leaders and their teams: * CIOs, CTOs, and IT Directors * Enterprise and Network Architects * IT Operations and DevOps Leads * Security and Compliance Professionals * Automation Architects shaping AI and modernization strategy * Anyone interested in Automation - no matter where you are in your journey **[Event Details](https://reg.experiences.redhat.com/flow/redhat/4102500/rhexpressregistrationapp/page/expressregistration?sc_cid=RHCTN1260000485001)** * **Location:** Marriott Marquis\, DC \| 901 Massachusetts Ave NW\, Washington\, DC 20001 * **Date:** Wednesday, June 24, 2026 * **Time:** 8:15 AM - 4:30 PM ET **Note:** Please register using your business email address. Questions? Contact us at infrastructure@redhat.com

Important: Register on [AICamp website](https://www.aicamp.ai/event/eventdetails/W2026061814) is required for admission. **Description:** Welcome to the AI meetup in Washington DC. Join us for deep dive tech talks on AI, GenAI, LLMs and Agents, hands-on experiences on code labs, workshops, and networking with speakers and fellow developers. **Agenda:** \* 5:30pm\~6:00pm: Checkin, Food/drink and networking \* 6:00pm\~8:00pm: Tech talks and Q&A \* 8:00pm: Happy Hour at Courthouse Social (cross the street) **Tech Talk: Secure Developer Environments in the Age of AI Agents** **Speaker:** Patrick Brown (Coder) **Abstract:** Federal engineering teams are under pressure to ship faster while meeting some of the most demanding security and compliance requirements in the world. In this talk, Patrick Brown of Coder explores how cloud development environments (CDEs) give agencies a foundation to accelerate software delivery without sacrificing control — and why that foundation matters even more as AI-powered coding agents enter the workflow. He'll cover how CDEs keep source code off endpoints, enforce zero-trust access patterns, and provide the consistent, ephemeral infrastructure that both human developers and AI agents need to operate safely at scale. **Speakers:** Stay tuned as we are updating speakers and schedules. If you have a keen interest in speaking to our community, we invite you to submit topics for consideration: [Submit Topics](https://forms.gle/JkMt91CZRtoJBSFUA) **Sponsors:** We are actively seeking sponsors to support AI developers community. Whether it is by offering venue spaces, providing food, or cash sponsorship. Sponsors will not only speak at the meetups, receive prominent recognition, but also gain exposure to our extensive membership base of 5,000+ AI developers in D.C and 500K+ worldwide.

Join us for another session of our study group as we cover the book Build a Reasoning Model (from Scatch). In this session, we will try to cover Chapter 1 titled "Understanding Reasoning Models", which defines what a Reasoning Model is and Chapter 2, on "Generating Text with an LLM". This isn't just a lecture! Come ready to ask questions, share insights, and code along. Whether you're a beginner or have some experience, this is the perfect opportunity to continue to learn together. If you plan to work with the code on your own laptop during the session, try and download the code from it's GitHub repository at https://github.com/rasbt/reasoning-from-scratch ahead of time.

For decades, application security has been built around a simple assumption: humans are the primary producers of software. We train developers, review their pull requests, model threats in design meetings, and build controls around human decision-making. That assumption is rapidly breaking down. As AI coding assistants evolve into autonomous software agents, organizations will gain access to an effectively unlimited engineering workforce capable of producing software at a speed no human team can match. The pressure to adopt these systems will be driven not by curiosity, but by competition. Companies that successfully harness agentic development will ship faster, iterate faster, and potentially outpace those that do not. This shift forces a fundamental rethinking of application security. The future of AppSec is not securing developers—it is governing an agentic workforce. Threat modeling, code review, security testing, and change management will not disappear, but they will need to operate at machine speed and increasingly be performed by systems rather than people. In this talk, Ken Johnson, CTO of DryRun Security, explores what the next decade of application security may look like, the assumptions that will no longer hold, and why security professionals must understand these systems deeply if they hope to influence the future rather than react to it.

This is our weekly training session. NOVA Jujutsu is a self-defense focused system incorporating Geri (Kicking), Atemi (Striking), Uke (Blocking), Tai Sabakai (Body Movement), Tai Hodoki (Escapes), Kansetsu Waza (Joint Locks), Nage Waza (Throwing), Shime Waza (Choking), Katame Waza (Grappling), Tantojutsu (Knife), Bojutsu (Bo), Kenjutsu (Sword), and Kata (Forms). Come on down to a class and see for yourself what this group has to offer. You will get a great workout! You will have an awesome learning experience! You will meet some good people! We look forward to meeting you. See you there. TAGS: japanese, martial arts, self-defense, jujutsu, jujitsu, juijitsu, bujutsu, defense, karate, koppo, kenjutsu, bojutsu, tantojutsu

VIRTUAL PRESENTER. NOTE SPECIAL DATE: 2ND TUESDAY IN THE MONTH .NET 10 is here alongside a practically rewritten Visual Studio 2026. Learn about the new C# 14 features, VS2026 niceties, and more!

**The Neural Revolution Is Happening Right Now — Are You Plugged In?** Imagine typing with your thoughts. Steering a robotic limb with a neural signal. Lifting depression by stimulating a single brain circuit. Loading a skill straight into memory. This isn't science fiction. It's happening in labs, clinics, and startups around the world — and the DC region, home to NIH, the BRAIN Initiative, and DARPA's neural-interface programs, is one of the places it's being funded and built. **This Event Is for You If…** * ✅ You're a **technologist** curious about the computing paradigm beyond screens and keyboards * ✅ You work in **healthcare** and want to see how neural interfaces will reshape patient care * ✅ You're an **entrepreneur** hunting the next real opportunity in deep tech * ✅ You're a **researcher** looking to plug into the broader BCI ecosystem * ✅ You're simply **fascinated** by where neuroscience and technology collide * ✅ You **missed our last meetup** and want to reconnect with the community **Why That List Makes Us Unique in DC** Read it again. A technologist, a clinician, a founder, a researcher, and the merely curious — in the same room, on the same afternoon. That mix is the whole point, and it's what no other event in the region offers. Neuroscience conferences are built for neuroscientists. AI meetups are built for engineers. Healthcare summits are built for clinicians. Each one serves a single silo. Brain computing doesn't live in any one of those silos — it lives in the overlap. So we built the one community in DC dedicated to that overlap: a place where the person decoding neural signals can talk to the person who'll commercialize the device, who can talk to the clinician who'll put it in front of a patient. **What You'll Walk Away With** This isn't just another tech meetup. Because of who's in the room, you get: * **Frontline insight** from people actively decoding neural signals * **Direct access** to the scientists, engineers, and founders pushing BCI forward — not a panel behind a rope line * **Hands-on work** with real neural data and BCI systems * **Career connections** in one of the fastest-growing fields in tech * **First looks** at breakthrough research before it reaches mainstream media **The Stakes Are Real** We're at an inflection point. The next decade decides whether brain-computer interfaces *expand* human potential or *deepen* inequality — whether they're built in the open or behind closed doors, whether the benefits are shared or hoarded. Your voice, your expertise, your perspective shapes which future we get. **Join the Minds Shaping Tomorrow** This is your entry point into the neural-interface revolution — your chance to stand alongside the researchers reading neural code, the engineers building the interfaces, the clinicians treating patients, and the founders bringing it all to market. **Saturday, June 13 · 12:00–3:00 PM** isn't just a meetup. It's the one place in DC where all of those people come together around brain computing. **Come curious. Leave connected. Return transformed.** Because the future of human-computer interaction isn't happening *to* you — it's happening *with* you.