Firewalls

Competitive Wallyball Monday Event is for players that know or learn how to play Wallyball positions. Have strong skills in pass, set, spike. No shows will be tracked and players will be removed. \*New Players if you are an A/BB volleyball player you should come out and try it on a Thur but if we have room Host Decision just DM them \*New Players BB/B should come out on a Tues or Thurs to have fun learning the walls and improving skills.

Learn Kali at OSMA in Herndon, VA: a beginner-friendly Filipino Martial Arts (FMA) class that builds coordination, timing, and confidence. 🔥 Experience FMA training through **partner drills**, **movement flow**, and **practical self-defense applications**. In this session you’ll: * Train classic **FMA weapon systems** such as **rattan sticks**, **training knives**, and **empty-hand applications** of Kali and Arnis. * Develop **coordination**, **timing**, **range awareness** and **reflexes** through **practical drills** drawn from Filipino Martial Arts traditions. * Improve your **conditioning**, **speed**, and **agility**: FMA’s weapon-based flow patterns and hand-to-hand transitions push both **mind** and **body**. Join a supportive community of martial arts enthusiasts in [Northern Virginia](https://en.wikipedia.org/wiki/Northern_Virginia) \-\- whether you're new to weapons training or experienced\, this class is designed to **challenge** and **reward**. This class is **open to all levels** and emphasizes **safety**, **precision**, and **continuous learning**. Whether you’re looking to explore **Filipino Martial Arts** (FMA) for **[self-defense](https://en.wikipedia.org/wiki/Self-defense)**, **coordination training**, **weapons fluency**, or simply finding a **unique**, **dynamic workout** in [Herndon, VA](https://en.wikipedia.org/wiki/Herndon,_Virginia) -- *this is your class*. 👉 Come build real **skills**, boost **conditioning**, and ***train with great people*** \-\- j**oin us today and explore the flow and discipline of [Filipino Martial Arts](https://en.wikipedia.org/wiki/Filipino_martial_arts)!** The **drop-in fee** for non-members is **$20**, **payable on-site**. We are located in **Suite #130** — let us know when you arrive and we’ll take care of the rest.

Wallyball Monday Event is for players that know or learn how to play Wallyball positions. Have skills in pass, set, spike. No shows will be tracked and players will be removed.

This walk was inspired by the opening to This Land Is Your Land - should be an interesting cross section of the city **Route:** 1. Dupont Metro 2. California: USC Capital Campus 3. NY Island: Mamie Johnson Plaza 4. Redwood Forest: Redwood on capitol grounds 5. Gulf Stream Waters: Diamond Teague Park 6. Navy Yard Ballpark Metro **Mileage:** 5.7 mi **Start Location:** Dupont Circle Metro Station **End Location:** Navy Yard - Ballpark Metro Station **Map:** [https://maps.app.goo.gl/R3LpvfiQ7YgGAND18](https://maps.app.goo.gl/R3LpvfiQ7YgGAND18) **Time:** 6 pm - 8:30 pm **Terrain:** This will be mostly flat, on paved or gravel ground We try to be punctual with our event times so please be respectful to others and show up a few minutes early, because we will leave without you. Note, we often limit the RSVPs to keep group sizes manageable. We're always looking for new leaders who can showcase their neighborhood or any cool places they know, so please reach out either at an event or on meetup if you are interested. If you've enjoyed our walks please consider donating a few bucks to help us keep this group running (meetup is expensive!). [Donation Link](https://venmo.com/code?user_id=2158403661070336114)

The Mission: Finding Your Strength It’s natural to feel intimidated by the idea of a self-defense class. At Kore, our “First Friday” sessions are designed to replace that hesitation with confidence. This isn’t about traditional “gym moves” or martial arts rituals—it’s about taking agency over your life. Taught by our Certified Female Instructors, this free workshop focuses on practical applications of the Kore Standard. We help you sharpen your natural intuition and provide a toolkit of effective, simple responses to common safety concerns. This is about building the confidence to navigate the world on your own terms.

The next NoVABeerSec event - "Informal Gathering of Security Minds Over Beer" will be Wednesday, April 29th, 5:30PM til 7:30ish at Aslin Beer Company - Herndon Taproom (767 Elden St., Herndon VA 20170). **Venue for April:** Aslin Beer Company (https://www.aslinbeer.com) - Aslin Beer Co. was founded in 2015 by Andrew Kelley and Kai Leszkowicz. The name, Aslin, comes from the family that connected Andrew and Kai through marriage; they each married a daughter from the Aslin Family. Andrew’s professional background was in finance and consulting, while Kai worked in public service. They bonded over a shared interest of craft beer and home-brewing, which eventually lead to the idea that “We can do this too.” **Additional Info:** We are an inclusive group, so if we missed anyone please let us know or if you want to bring your significant other/spouse please do. We do know there are folks that have changed roles since we last met so please also let us know if we need to add new contact info for people. Have a great week and see you later this month! Cheers, Rinaldi Rampen & Mike McCabe of @NoVABeerSec

Consider it cancelled if it’s raining (Sorry, not at that level yet 😬) Maybe one day!

Important: Register on [AICamp website](https://www.aicamp.ai/event/eventdetails/W2026043014) is required for admission. **Description:** Join us for a community-led developer event focused on AI-assisted coding with GitHub Copilot. This event brings together developers to explore practical workflows, real-world use cases, and hands-on experiences using GitHub Copilot. Whether you are new to GitHub Copilot or already using it, this event will help you better understand how to apply AI-assisted coding techniques in everyday development. **Speakers/Topics:** \- Reynald Adolphe\, Microsoft\. \- Christopher Harrison\, GitHub 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 our weekly walking meetup to have fun, maintain a healthy lifestyle, meet new people, and enjoy nature! We meet Saturdays at 10am, by the bike racks and benches 150 feet in front of BUBBLES Hair Salon in Reston, leaving no later than 10:05. Every week we'll walk the Green Trail to Lake Anne Plaza (\~1 mile), pause there for 5-10 minutes (water, bio, and from April-Nov a Farmer's Market), then circle the lake (2 miles) before returning to our starting point. It's roughly 3.5 miles and takes about an hour and a half. Afterwards, some members will often head to a local restaurant to refuel and relax before tackling the rest of the day. This event is open to all ages and fitness levels, and both friends and dogs are always welcome! We recommend dressing for the weather (umbrella, water bottle, snow shoes, hat, etc.) since we'll always walk, rain or shine. By signing up, you accept and assume all risks and responsibilities with this activity, and nobody will be held liable.

Let’s reboot the DC Postgres Meetup series! This inaugural meeting will be hosted by John Porvaznik and Eddie Pickle and all are welcome. We’re actively looking for speakers, co-hosts, event spaces and other folks that want to help bring this group back to life. If you can’t make it but want to be involved in the future, please let us know. John Porvaznik will present a talk on Postgres fundamentals including shared buffers, memory usage, pages, and more. John is a long time PostgreSQL Engineer and DBA in the government space with focus on ETL / Data Ingestion, PostGIS and spatial data sets, query optimizations, Database Design // DDL, benchmarking and specifications, data health, and system healths and monitoring. This meetup will be hosted near the Snowflake office in Tysons (event space sponsored by Snowflake). We’ll have pizza and drinks for folks. 6:00 arrival and networking, 6:30 talk followed by discussion, 7:45 close. The event is at 1750 Tysons Boulevard, McClean, VA, 22102, in the 1750 Tysons Conference Center. This is Metro Accessible from the Silver Line to Tyson's Corner station. Parking at the mall next door is free or the event building has paid parking.

Develop Communication and Leadership skills in a friendly and fun club! Guests are always welcomed at Leesburg Speakeasies https://leesburgspeakeasies.toastmastersclubs.org/ Visit our website (link above) for more details Leesburg Speakeasies Toastmasters 10:15 AM Rust Library 380 Old Waterford Rd NW, Leesburg, VA 20176 ·

If **CMMC** is on your radar (or keeping you up at night), this is the conversation you don’t want to miss! Join us on **Tuesday, May 12, 2026,** at **Honor Brewing Company** at **42604 Trade West Dr, Sterling, VA 20166**! Want a custom name tag to enhance your networking opportunities? Register here and yours will be ready at the door: https://share.hsforms.com/1YxovFyF9RzKCcq9EjAN8-wdwxz1 Join us for an “**Ask the CMMC Experts**” session with **Brian Gallagher and Carter Schoenberg of Koniag Cyber.** These two seasoned leaders have been deep in the trenches of cybersecurity, compliance, and national security! **Brian** brings 20+ years of experience leading cybersecurity services across **highly regulated industries** and a unique perspective as a former **U.S. Secret Service Technical Security Division** professional who has helped secure some of the nation’s most sensitive environments. **Carter** pairs 30+ years spanning cyber investigations, threat intelligence, and cyber law with hands-on CMMC leadership as a **Lead Certified Asessor**. He’s conducted 35+ independent CMMC assessments, supported 30+ Authorizations to Operate for **DHS and DoD**, and helped shape national conversations through work with **NIST, MITRE, and federal agencies.** Bring your questions, your challenges, and your curiosity on **May 12**, for this candid, practical conversation with **Brian Gallagher and Carter Schoenberg**, designed to help you move forward with confidence! **Agenda** 5:30 Social hour and networking begins 6:10 Welcome 6:15 Ask the CMMC Expert - **Brian Gallagher & Carter Schoenberg** 6:50 Q&A 7:00 Open Mic & Networking Continues 7:30 Adjourn

Consider it cancelled if it’s raining (Sorry, I’m not at that level yet 😬) maybe one day!

**Title**: Amplifying Engineering Skills with Claude Code In this session we will dive into how Claude Code can augment modern engineering practices, from rapid prototyping and refactoring to test generation and documentation. We’ll cover real-world use cases, integration patterns, and tips for getting the most out of AI in your development lifecycle. 6-6:30p.m. - food & drinks 6:30-7:30p.m. - Presentation 7:30-8:00p.m. - Q&A and Possible concept presentation for feedback

**Inflow 6:00 PM - Talks Start \~6:30 PM** **Reston Community Center - 2310 Colts Neck Rd, Reston, VA 20191** NoVA Hackers is a group located in the Northern Virginia area and is made up of Information Security Professionals from all walks of life, from government and private sector, to students and beginners. The monthly meetings are held much like a mini-conference with 4-8 speakers and only a few basic but strict rules. Participation and Permission Active Participation is required for continued membership and is the only due required. Permission is required to be obtained from anyone providing information to the group from the person providing it to be made public by anyone other than the provider. Historically our talks generally run a bit late and we have a hard stop at 9:30pm for the room. If you want to socialize we recommend you arrive at 6 to meet and greet before the talks. Agendas and remote meeting option available after you join the group.

Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects.

Shut Up & Write meets at Cascades Library in Room D. We hope to see you there! *Shut Up & Write is not affiliated with the Loudoun County Public Library.*

Shut Up & Write! meets at Cascades Library Room D We hope to see you there! Shut Up & Write is not affiliated with the Loudoun County Public Libraries.