Hacking

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!

**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.

Hi Everyone! This will be the FINAL (yes, you read that right!) event for this meetup group, so let's go out with a bang! Come celebrate Pride month and the community we’ve built for the last 4 years. Early arrival is suggested! This event is for Black queers only (no cis men)! Please update your RSVP if you can no longer attend. Happy hour drink specials pictured below. You're welcome to bring outside food since this venue does not serve food. We may have some celebratory cake. See you there!

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.

• What we'll do Economist William Michael Cunningham on Podbeam Thursdays at 6 pm. https://www.podbean.com/

If you’ve already learned the basics of volleyball and want to keep improving your skills while having fun, this event is for you! **Skill Level:** Advanced Beginner (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details). **Reminders** 1. Attendance: We’ve noticed that the waitlist is growing, so please make sure your name is on the Going list if you plan to play. Our number of nets is limited so this helps avoid too many rotations. If your name is on the list but you don’t show up, it will count as an absence according to Smiley Social rules. Please update your RSVP at least 12 hours in advance if your plans change. 2. Injuries: Play safely and be mindful of others on the court. Respect positions and avoid risky moves that could lead to injury. If you’re not sure the ball is yours, call it before going for it to avoid collisions. 3. Game Rules: Let’s follow the basic volleyball rules, especially the three-touch rule so we can play properly and improve as a team! 4. Waitlist: The waitlist is not first come first serve. We prioritize regular attendees, and will fill empty spots with new faces closer to the event date. **Smiley Social documents:** 1. [Group Rules ](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 2. [Liability Waiver ](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco) 3. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)

Let's get together to play some fun BB level Doubles games at Bluemont. **Format**: Doubles **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: Intermediate-BB (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Smiley Social documents:** 1. [Group Rules ](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 1. [Liability Waiver ](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco) 1. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)

Caledon State Park is a 2,500-acre property in King George County that has been designated as a National Natural Landmark. The park includes 16 miles of hiking trails and is home to old growth forests and American bald eagles. Given the low mileage and modest elevation gain, this backpacking trip is a great choice for those who are new to the sport or who are trying to get back into it. We will meet on the sidewalk between the parking garage and the bus lane at the Franconia-Springfield Metro Station at 9:00 AM and carpool to the trailhead. Drive time is about 1 hour and 30 minutes. Please post a comment below if you are willing to drive. Carpooling saves the environment and makes friends. ## Trail Facts * **Difficulty Level:** Easy * **Length:** 13.5 Miles * **Duration:** 2 Days * **Elevation Gain:** 702 Feet * **Bear Canisters:** Not Required * **Permits:** Not required, although I ask that each person chips in $10 to help cover the cost of the camping reservation. You can give me cash or send me money via PayPal or Venmo. * **Dogs:** Allowed on leash at the park, but not at the post-trip meal location. * **Parking:** Franconia-Springfield Metro Station (Free garage parking is available if you aren't driving to the trailhead.) * **Trailhead Coordinates:** 38.33376579936516, -77.14297900500688 * **AllTrails Maps:** [Day 1, Part 1](https://www.alltrails.com/explore/custom-routes/caledon-state-park-nova-tb-sat-1-f2fb9d7?u=i&sh=kucj8c) / [Day 1, Part 2](https://www.alltrails.com/explore/custom-routes/caledon-state-park-nova-tb-sat-2-8f2f470?u=i&sh=kucj8c) / [Day 2](https://www.alltrails.com/explore/custom-routes/caledon-state-park-nova-tb-sun-b016935?u=i&sh=kucj8c) **Trail Details:** **Day 1, Part 1:** After arriving at the park we will put on our packs and hike about 7 miles with 456 feet of elevation gain. During this leg of our journey we will stop by a few overlooks of the Potomac River and, if we're lucky, we may see some bald eagles. This loop will take us back to the Visitor Center, where you'll have the opportunity to top off your water supplies and check out the exhibits while Juanatán checks in on behalf of the group. You should be prepared to carry enough water to last you until we get back to our cars on Sunday, as there is no potable water near our campsite. **Day 1, Part 2:** Once the group is ready we'll hike another 3.5 miles with 75 feet of elevation gain to our camping location near the Potomac River and Jones Pond. I have reserved six camping sites, with two tents allowed per site. We will set up camp, eat dinner, and relax around the fire as we wind down for the day. There will likely be a lot of free time, so consider bringing games or some other form of entertainment. **Day 2**: While during many backpacking trips it is helpful to start early the second day, on this trip we can take our time in the morning as we wake up, eat breakfast, and pack. I still anticipate that we'll be able to depart our camping spot by 10:00 a.m. and hike a slightly different route of 3 miles with 171 feet of elevation gain back to our cars. I plan to stop at Pancho Villa in Stafford on the way home -- the address is 155 Garrisonville Rd, Stafford, VA 22554. **Gear List** *Note: Be prepared for varying temperatures; layering is key.* **Essential Items**: * Tent * Sleeping pad​ * Sleeping bag suitable for expected temperatures​ * Backpack (appropriate for overnight backpacking)​ * Backpacking stove with fuel​ * Pot, cup, dish, and utensils​ * Dehydrated meals​ and snacks (for lunch and dinner on Saturday and for breakfast on Sunday) * Water bottles or hydration system (3-liter capacity)​ * Bag or canister for securely storing food and other scented items * Water filter or purification tablets​ * Headlamp with extra batteries​ * Rain gear * Dry bags or pack cover​ * Warm clothing layers (non-cotton) * Trowel and toiletries for Leave No Trace compliance **Optional Items**: * Personal first aid kit​ * Map and compass or GPS device * Power bank or external battery * Trekking poles​ * Camp shoes * Electrolyte supplements​ * Alcohol​ * Books, games, or other entertainment * Gaiters​ * Sunscreen, lip balm, insect repellent​​ **Saturday Itinerary:** 9:00 AM: Meet at the Franconia-Springfield Metro Station. 9:15 AM: Depart for the trailhead. 11:00 AM: Arrive and begin the hike. 3:00 PM: Come back to the Visitor Center, top off water supplies. 4:30 PM: Arrive at the campsite. *(Set up camp, explore the beach, eat dinner, etc. for the rest of the evening.)* **Sunday Itinerary:** 8:00 AM: Break camp, eat breakfast. 10:00 AM: Depart for the trailhead. 11:30 AM: Arrive at our cars, drive to the restaurant. 2:00 PM: Depart for the carpooling location. 2:30 PM: Arrive at the Franconia-Springfield Metro Station. *(Setting the end time to 3:00 PM to allow time for the unexpected.)* **LIABILITY NOTICE:** Please remember that this group operates under the common adventurer model. We are a group of friends and volunteers organizing trips for fun and shared experience. Participants are expected to be familiar with best hiking practices and choose hikes that align with their physical abilities and experience. Organizers and members are not liable for any injuries, loss, or damage to persons or property arising from group activities. By attending this event, you agree to assume all risks associated with the activity.​ For more information on the common adventurer model, please see [Ron Watters' definition](https://www.ronwatters.com/CADefine.htm).​ If you believe you may be lost during the hike, follow the advice of the [US Forest Service](https://www.fs.usda.gov/visit/know-before-you-go/if-you-get-lost).​ See you on the trail! **[Featured Image Source](https://en.wikipedia.org/wiki/Caledon_State_Park#/media/File:CaledonStatePark.png)**

**\*TO ATTEND GET TICKET At** [https://www.socialevents123.com/event-details.aspx?id=13508#tix](https://www.socialevents123.com/event-details.aspx?id=13508#tix) (Multiple Meetup groups are co-organizing so the RSVP's shown are just a very small portion attending. We'll have at least 20 registered.) Our last online Bingo Night Party was such a BIG hit, we're doing it again! Do you like to play BINGO or want to just do something different?! Then you will LOVE this event! Here is your opportunity to have some fun playing our Live "Bingo" game. You will also get to socialize and make other friends from the comfort of your home. Prizes included Amazon gift cards, free future events and more! This completely online event will be LIVE and you will be able to see and hear the other participants while playing. You will either need to print or draw out your bingo cards. We will email you with how to get it after registering. You can have more than 1 person on your team as long as they're from your house and use same device. Friends/family around the country can also play. They would just need to also register for a ticket. This event will be held on Zoom which you would access through your computer/webcam, or via your phone/tablet. On day of the event, you will get a secured Zoom link and link to print out Bingo cards. \*RSVPS ON HERE ARE NOT REFLECTIVE OF ACTUAL ATTENDANCE as this is a multi group event. Cost: $15-$20 depending on how early you register. **\*TO ATTEND GET TICKET AT -** [https://www.socialevents123.com/event-details.aspx?id=13508#tix](https://www.socialevents123.com/event-details.aspx?id=13508#tix)

Top level Backgammon Tournament play. Have fun and improve your game. Free lessons to new and inexperienced players. Club been active over 40 years, posting on Meetup is new. Contact Director Larry Brown with any questions. 571-214-8298 or LuckyLarry1001@gmail.com

😀♠️❤️ 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. 🙏🏿 <><><><><><><><><><><><><><><

This Happy Hour is devoted to professionals in the International Affairs and Development community, to grow, interact, and learn from each other. It is designed to provide a professional environment to meet other International Affairs professionals to broaden one's career. It is also for those interested in International Affairs and Development careers and are studying or intend to enter the dynamic world of global development. HOW IT WORKS : We will try to assign tables for each represented INDUSTRIES/SECTORS/SPECIALIZATIONS and will direct attendees to their respective tables accordingly. All industries are welcome! However we don't guarantee the availability of a partner in that particular field, you would like to exchange experience. PLEASE BRING YOUR SOFT/HARD COPY BUSINESS CARDS. Rules to abide : 1\. Event is 21\+ \(bring ID\)\. 2\. Be respectful to your counterparts and give them a chance to exchange with others as well\. 3\. We all specialize in one or two fields and be willing to engage others and try to accommodate as much as possible\. 4\. If you don't specialize in the other person's required discipline\, LEAVE THEM ALONE\. 5\. Rude or aggressive members are removed from the group at an organizers discretion\. 6\. This is a face\-to\-face 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 greet you and take you to your respective group\. 10\. Don't be shy of your specializations\. We have diplomates assigned to different countries\, who would love to learn more from your experience\. 11. ***Please be patient for the first 30 minutes, up until we form a group with your respective industry/sector.*** ***AFTER THE SOCIAL, WE HIT THE DANCE FLOOR! BRING YOUR DANCING SHOES, WE WILL DANCE THE NIGHT AWAY!*** ***N.B. : 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](http://info@merevents.com/)).***

The Craft Cocktail Club ventures to Carving Room to partake in their selection of fine craft cocktails and cuisine. Bring your appetite. https://www.carvingroom.com/location/cr-noma/

We've moved to guild.host Look for us there. https://guild.host/events/buckeye-cocoaheads-nscoders-tcbrk5

Happy Hour on the Green ⛳ Join Black Love & Friends for a laid-back evening at Topgolf as we celebrate the fathers, father figures, brothers, uncles, mentors, friends, and positive male role models who enrich our lives and communities. This isn't a golf tournament—it's a social gathering designed to bring great people together for conversation, connection, laughter, food, drinks, and a little friendly competition. Whether you're a father, celebrating a father, bringing your brother, cousin, friend, or simply looking for a fun Saturday evening, you're welcome to join us. No golf experience is necessary. Come for the happy hour, stay for the company. Expect: • Topgolf games for all skill levels • Food and drinks available for purchase • Networking and socializing • Great music and positive vibes • A welcoming atmosphere for singles, couples, and friends Bring someone special or come solo and meet new people. Let's raise a glass to the men who lead, support, inspire, and show up for the people they love.

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

**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)

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

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.

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/).