Hacking

**REGISTER AT THE LUMA EVENT PAGE!!!** https://luma.com/27ja5gwl Join us for an exciting talk by Mary Gibbs, Senior Applied Scientist at Relativity. ​ ​**​Agenda:** ​​6:00 - 6:30 PM - Welcome and mingle 6:30- 6:45 PM - Introductions 6:45 - 7:30 PM - Talk 7:30 - 8:00 PM - Wrap up **​​Description:** ​If you have ever shipped a model, watched your metrics improve, and later learned from your users that something was wrong, the metrics were always wrong. You just didn’t know it yet. An evaluation consists of three components, a benchmark, a scorer, and a claim about what a score represents. Each component has its own weaknesses. Benchmarks can suffer from narrow coverage, contamination, or saturation. Scorers are often chosen for ease of automation or computation rather than for their alignment with user outcomes. And the claim connecting a score to reality is rarely made explicit. These gaps compound across the model development lifecycle. When metrics improve, teams treat that as a signal and optimize directly against it, which is how a measurement problem becomes a model problem. This talk maps where evaluations can go wrong, considers counterarguments, and ends with practical advice for building better ones. **​Speaker Bio:** ​Mary is a Senior Applied Scientist at Relativity, tackling data science challenges in the e-discovery and legal tech space. She is also an organizer for Women and Gender eXpansive Coders DC (formerly Women Who Code DC), fostering a community dedicated to empowering women and nonbinary individuals to excel in their careers. Mary's experience spans various domains. She has developed data science solutions related to job search and career progression at Teal, cybersecurity challenges at LiveAction Software, and commercial and government consulting at Mosaic Data Science. Before venturing into the field of data science, Mary conducted and published research pertaining to the cellular and molecular mechanisms underlying neurodevelopment at the National Institutes of Health. In other words, she has dissected and imaged a lot of fruit fly brains. She holds a M.S. in Data Science from The George Washington University and a B.A. in Biological Sciences from Cornell University

\*\*\*Note: We have temporarily moved off of the UMD Track and are meeting at Herbert Wells Ice Rink (Same location as Thursdays) for our speedwork. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Join us for a structured speed workout! If you are new to running, just getting back into it, or checking out the club for the first time, this a great first workout to join. All paces and abilities welcome. A pre-determined workout will be announced at the beginning and participants can adjust the workout to meet their needs and level. Workouts are usually planned by time, rather than distance, which helps accommodate the wide variety of paces that we have and allows the group to stick together. Warm-up starts at 6:30pm. Children are welcome, if accompanied by a responsible adult. **Parking information:** Free parking is available; park nearest the trail (farthest from the ice rink)

Reboot Hour is a feel-good, drop-in happy hour for meeting great people, playing a few games, and resetting your week. **Come stressed, leave refreshed. Donate old tech too!** This is the **anti-event**: no agenda, no speakers, no pressure. Just good people + games + conversation. Quick community note: eWaste Warriors has been getting noticed — **Rob Link was named a RealLIST Connectors DC 2026 Top 20 Connector**. You’ll feel that energy in the room: a lot of those “connector” folks show up here to meet people and pull others in. **Optional bonus (1 minute): bring 1 working device** (phone/tablet/laptop/etc.). Donating feels good because it helps real people and keeps good tech in circulation. Accepted: phones, tablets, laptops, smartwatches, AR/VR headsets, game consoles, headphones. Not accepted: screens, CRTs, appliances, loose batteries. **When/Where:** Tue, May 26 • **5:00–7:30 PM** (drop in anytime) Carpool Ballston — 900 N Glebe Rd, Arlington, VA (Ballston Metro)

Calling all Crew Members! 🚢 BBaddies On A Track! We will be meeting at 6am to hit the track. We will do a warm up and then a few drills and sprints on the track! We will also have fun and be in community!

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Artemis II and Beyond,”** on how the recent space mission fits into long-term plans for the Moon, with Michael J. Neufeld, retired senior curator for the Space History Department of the Smithsonian’s National Air and Space Museum. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond](https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond) .] NASA’s recent, spectacular Artemis II mission is a sign that the United States is serious about sending humans to the Moon again. Gain an understanding of how Artemis II fits in both past and planned lunar missions with historian Michael Neufeld, who was lead curator of the Smithsonian’s Destination Moon exhibit. He has taught at Johns Hopkins, Colgate, and other universities, and is the author or editor of nine books dealing with the history of technology. He’ll start by looking at the aftermath of the Apollo program of a half century ago and why it ended only four years after its first lunar mission. He’ll consider why no lasting lunar programs emerged from major announcements by two presidents, George H.W. Bush and George W. Bush, that astronauts would be going back to the Moon and on to Mars. His vividly illustrated lecture will then explore how Artemis is a product of a human spaceflight program that has changed dramatically over the past 50 years. We’ll look at how collaboration with Europe, Canada and Japan became integral to the shuttle and International Space Station programs, and how the rise of new commercial space companies such as SpaceX has enabled NASA to buy both space services and space craft. Both international and commercial partners are involved in the latest Moon efforts, with SpaceX and Blue Origin expected to supply the landers to take astronauts down to a planned base on the Moon’s South Pole. How soon will any of this happen? Probably not as quickly as NASA says, but the specter of a Chinese landing on the Moon by 2030 is one obvious reason to keep things moving along. We’ll look at the sustainability of the Artemis space program for at least the next decade or so. You’ll emerge from the talk with no doubt that exciting days are ahead for space fans. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: The Artemis II mission launch (NASA photo).

Meet us on Tuesday, May 26th from 6-8 PM at the Shake Shack at Columbia Mall! Remember to bring your arts, crafts, and creative projects to work on for the evening. Can't wait to see you all soon!

Alexandria Pints & Pawns is now part of the Chess on Tap community! If you have a travel chess set and/or clock, please bring them so we can be sure to accommodate everyone. If not, feel free to come anyway!

The Cover6 Community's in-person meetup is back — round three, and we're keeping it exactly where it should be. We're downstairs this time — right by the bar. No conference room, no roped-off section upstairs. Just the right amount of space for real conversation, and drinks already there if you want one. What to expect: • Pure open networking — no agenda, no presentations, no slides • Three hours to connect, catch up, and build real relationships • Genuine conversations with practitioners, newcomers, students, and professionals from across the industry • Good energy, familiar faces — and plenty of new ones When you walk in, skip the elevator. Head straight to the bar and you'll see me close by. Who should come: Anyone in or entering the cybersecurity space in the DMV. It doesn't matter if you've been in the industry for 20 years or you're still studying for your first cert. You belong here. Bring a friend — the more the merrier. Tag someone who needs to be in this room. 📍 AC Hotel by Marriott Arlington National Landing 1999 Richmond Highway, Arlington, VA 22202 (Metro accessible — Blue/Yellow Line, Crystal City Station) We're downstairs — look for us by the bar. 📅 Thursday, May 28, 2026 🕕 6:00 PM – 9:00 PM RSVP so we know how many people to expect. See you Thursday. — Tyrone & the Cover6 Community team

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!

Welcome to the JGOOT Travel Hacking Enthusiasts Meetup Group! Whether you're a seasoned traveler or just starting to explore the world of points and miles, this group is perfect for anyone looking to travel more luxuriously for less. Mason Social is a great neighborhood restaurant. We'll have fantastic food, drinks and conversation! Easy street parking is available and it is walkable from the Braddock Road Metro (blue & yellow lines). Come hang out with fellow travel enthusiasts and swap stories, tips, and tricks about travel hacking! Whether it’s maximizing rewards programs or finding the best ways to use points for flights and hotels, this is a casual, laid-back space to share ideas and pick up new strategies. Connect with experienced travelers and get inspired to level up your adventures. Located in the Washington DC area, we host engaging, interactive events where you can ask questions, share experiences, and find inspiration for your next adventure. Ready to turn your travel dreams into reality? Come join us and learn how to travel smarter, better, and for nearly free! 🌍✈️ \*RSVP fee: $25 in advance. Fee covers the location, light appetizers, and ensures accuracy of number of attendees. Mason Social has a full menu of food and beverages for purchase.

Hands-on learn how to save life & limb, when mired in the wilderness of an urban disaster zone, travel or rural area far from hospital, or natural area miles from an access point, during the critical minutes or hours before ambulance arrival. Come away with actual do-it-yourself care-giving skill and confidence, and 2-year SOLO certification. Counts as WFR Recertification, too. No prerequisites. YOUR SPOT IS NOT RESERVED UNTIL YOU'VE COMPLETELY REGISTERED AT WWW.SOLOWFA.COM \***Spaces are limited. REGISTER: www.solowfa.com or 434.326.4697** Can't make these dates? Check out more course locations and dates on our website. WHO: Open to the general public, adults & teens with solid attention spans. Know your loved ones are safe wherever they are. WHY: Mired in a disaster zone, travel or rural area far from a hospital, or natural area miles from an access point ... accidents, destructive weather, and terrorism happen, and all-too-often members of a group are not capable of dealing with the emergency. This leads to improper care of the patient, and endangers the entire group. Many recreational accidents are preventable, and improper care of trauma can compound even simple injuries. Very few first aid programs actually address the issues of providing emergency care in a setting where 911 is overwhelmed or not immediately reachable. In this course, classroom instruction and Q&A are interwoven with practical work and problem-solving exercises. Hands-on experience - a most powerful learning tool - during scenarios comprise \~50% of class. TIMING: This is a 2-day class, Saturday and Sunday, 8:00am -7pm each day. Fee: $295 (Earlybird)

**\*TO ATTEND REGISTER AT - [https://www.socialevents123.com/event-details.aspx?id=13390#tix](https://www.socialevents123.com/event-details.aspx?id=13390#tix)** Cost: $15- $20 depending on how early you register. (\*Multiple Meetup groups are co-organizing so RSVP's shown are just a small % attending. ABOUT: Do you know more than 6th Graders! Here is your opportunity to have some fun playing our Live interactive trivia game (Categories will be History, English/literature, Geography, Science, Math, Potpori). HOW IT WORKS: You can attend via a computer & Webcam or Smartphone/Ipad/Tablet. This completely online event will be LIVE and you will be able to see and hear the other participants while playing. In addition you get to meet and interact with other participants. At game time, your host will read off Trivia questions. Your goal is to come up with the right answer to each question and write it down on your paper. Once the round is over (about 6 questions), we will go through the answers and determine who had the highest score for the round. They will get a raffle ticket for a chance to win a prize at the end of the event. We will have multiple rounds of play and have a system to also virtually introduce you to other participants. HOW DO YOU FIND THE VIRTUAL ROOM: After you purchase your ticket, you will get a confirmation with the zoom link ON DAY OF THE EVENT. RSVPS ON HERE ARE NOT REFLECTIVE OF ACTUAL ATTENDANCE as this is a multi group event. **\*TO ATTEND REGISTER AT - [https://www.socialevents123.com/event-details.aspx?id=13390#tix](https://www.socialevents123.com/event-details.aspx?id=13390#tix)** Cost: $15- $20 depending on how early you register.

Our larger singles party - meet even more people then Speed Dating. Lock & KeyTM Event in Washington DC, Maryland, the FUN way to socialize, make new friends, meet your match… or just have a great time! Woman get a Lock and men get a Key. Meet and mingle as you unlock and get tickets for a prize drawing at the end... but the real prize is all the new people you'll meet! Invite your fun single friends in Washington DC, buy your ticket, and join us to meet local singles Friday May 29 at LOCK & KEY SINGLES PARTY at Astro Beer Hall. \* This is the REAL, Trademarked, Lock & Key Event: Don't be fooled by illegal copycats. Read more: [Lock and Key Events.com](https://www.lockandkeyevents.com/dc-metro-singles-parties/)

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

Do you feel introverted when you are in a group setting? Are you shy? Do other people have more fun than you do? There are simple life hacks you can use to improve your connection to others and improve your social life. Talking is one thing. Truly connecting is altogether another. It's the whole experience of connecting with people and forming relationships. It includes the joy, understanding, and love formed among people. * In our meetings, you will learn: * A simple life hack to increase your liking and tolerance of other people, or even of yourself! * How to become more interested and enjoy conversations with people. * How to be comfortable in social settings. * How to be yourself * How to become more extroverted and, * How to make connections with people. Feeling lonely, isolated, or bored? This local meeting is exactly what you need! Come join us! Be sure to click on the red "Attend" button below to come to the local event. We look forward to seeing you there. This group is created by the Dianetics and Scientology life improvement center.

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

**Huntsville Hack The Box – Monthly Meetup (In-Person + Online)** **Location:** UAH I2C, Huntsville, AL **Time:** Starts at 6:00 PM – Drop in anytime! **Discord (Join us online!):** [https://discord.gg/5sgUTzMqHS](https://discord.gg/5sgUTzMqHS) **Ready to Hack the Box (literally)?** Join us for our 11th *Huntsville Hack The Box* meetup — a free monthly cybersecurity event where beginners and experts alike team up to tackle real-world hacking challenges from the Hack The Box platform. Whether you're just curious about cybersecurity or you're already deep into pwning boxes, there's a challenge here for you. **What to Expect:** * **Live hacking**: We'll have HTB machines at all skill levels — beginner to 1337 — for you to work on solo or with others. * **In-person & online**: Come hang out with us at GigaParts or join remotely via Discord. * **Free food**: Provided by our awesome sponsor, SecurIT360. * **Prizes**: Hack The Box is hooking us up with swag and giveaways. * **No experience necessary**: Just bring a laptop. We’ll help you get started! **Don’t worry if you can’t make it right at 6:00 PM — drop in when you can. We’ll be hacking all evening.** Stay in the loop and connect with the crew before or after the event on our Discord: [https://discord.gg/5sgUTzMqHS](https://discord.gg/5sgUTzMqHS)

Black Nonbelievers is proud to bring you our 2nd annual Revival of Reason!!! Join us in Atlanta as this year, we will celebrate 15 years as an organization, along with our own version of the Juneteenth holiday! Featured speakers include: – Chris Cameron – Candace Gorham – Kellie King, aka Detroit Atheist Queen – Hemant Mehta, The Friendly Atheist – Godless Engineer – Mandisa Thomas – And MORE!!! This is a family friendly event, so please bring your loved ones, and anyone who is interested in learning and needs secular support. [Sponsorship](https://blacknonbelievers.wufoo.com/forms/revival-of-reason-2026-sponsors-and-exhibitors/) and [volunteer](https://blacknonbelievers.wufoo.com/forms/revival-of-reason-2026-be-a-volunteer/) opportunities are also available. You can also register to view sessions online. Official BN members get a special discount, so [sign up or renew ](https://bit.ly/3DMndSK)today! **We look forward to seeing you at the 2026 Revival of Reason. [Register TODAY!!!](https://bit.ly/RoR2026sitepage)**

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/