Apple Mac

DC iOS returns to the Capital One campus for our first meetup of 2026! Come and meet with fellow Apple developers in the DC Area, enjoy some food, networking, and a great tech talk! PLEASE INDICATE IF YOU WILL BE ATTENDING IN PERSON OR OVER ZOOM. **Agenda:** • 5:40 PM - Doors Open (in-person attendees). **Don't forget your ID!** • 6:10 PM - Welcome (in-person and Zoom attendees) • 6:15 PM - **Talk: *SwiftUI Internals + Performance*** • 7:05 PM - Community Announcements & Networking • 8:00 PM - Doors close **Talk Description:** **SwiftUI Internals + Performance** Will Downey A fast-paced breakdown of how SwiftUI works. Aimed at helping build a conceptual understanding of SwiftUI whether you're experienced with the SwiftUI or still hanging on to UIKit. Bonus section on optimizing SwiftUI performance and profiling if time permits. Zoom Link: [https://us06web.zoom.us/j/89091509354?pwd=7y7ghL5i9iSA9rgbpQCdrBiWy5QX7c.1](https://us06web.zoom.us/j/89091509354?pwd=7y7ghL5i9iSA9rgbpQCdrBiWy5QX7c.1) **Location:** Capital One, C2 Building 1680 Capital One Drive, Mclean VA, 22102 100A Visitor parking is either in the garage attached to 1680 Capital One Drive, or the open lot next to 1600 Capital One Drive. After that you will walk over to the main entrance of 1680 Capital One drive, and then walk around the right to the corner to room 100A For the metro, take the Silver Line to the McLean metro stop, then walk into main campus (about a 5 minute walk). From there, walk to the main entrance of 1680 and then go to room 100A **What you need to bring:** ID **When to arrive:** Doors open at 5:50pm ET Event will start at 6:10 pm ET **Will food and drinks be provided?** Yep! **Will there be rapid testing provided?** No **Will masks be required?** No

**[Bitcoin District](https://bitcoindistrict.org/)** is a community of Bitcoiners living & working in the greater DMV metro area. Join us for an after-work happy hour at [WHINO](https://www.whinova.com/) where we'll talk about what's happening in the world of Bitcoin. We highly encourage anyone new to Bitcoin or just a little curious to come and ask questions... don't be shy! 🚗 Daily, 24-hour parking at Ballston Public Parking Garage at 627 N. Glebe Rd ($1 after 6 pm for the whole night). There is also street parking along Wilson Blvd. 🚆 METRO: From Ballston-MU Metro, walk south on N Stuart St one block. **Our events are Bitcoin-focused, and we avoid discussing other cryptocurrencies & tokens. Nothing discussed during this meetup is financial advice. Always do your own research.**

We’re excited to continue building AI in Practice with our monthly social! 🎉 Each month, we’ll host an informal happy hour and dinner at Upside on Moore in Rosslyn. Come join fellow AI builders, professionals, and curious minds for a relaxed evening of conversation, connection, and community. Whether you’re working on AI systems, advising on responsible adoption, or just interested in how AI is shaping law, compliance, finance, healthcare, defense, software, mission-driven organizations, or public service — this is a chance to meet like-minded people and help shape what this community becomes. 🍸 Drinks and food are available for purchase at the venue. 🤝 No formal agenda — just introductions, networking, and sharing what excites us about AI in practice. We’re so grateful for the early enthusiasm, and we look forward to seeing you each month as this community grows! **Date, Time & Location** 5:30 PM – 7:30 PM Thursday 23 October 2025 Upside on Moore 1831 Moore Street Arlington, VA 22209

**Agenda :** * 4.30 to 4.45 PM ET: Food and Networking * 4.45 to 5.30 PM ET: "Practical Applications of Model Context Protocol (MCP) (Feb 2026 Edition)" Hello Everyone! Please join us for our Feb 10th edition of the AI-ML MeetUp. **Please note this is an in-person meeting and light refreshments/food will be provided.** **Title:** Practical Applications of Model Context Protocol (MCP) (Feb 2026 Edition) **Description:** This session explores how the Model Context Protocol (MCP) can be used to connect AI models with real-world tools and data. Attendees will learn practical patterns for implementing MCP in production workflows and applications. Through examples and use cases, the session highlights how MCP enables more capable, context-aware AI systems. **Location:** The meeting will be hosted in the Applied Information Sciences ( AIS ) office in Reston, at 11440 Commerce Park Dr # 600 · Reston, VA. The location is also right off the Silver Line metro's Wiehle-Reston Metro Station. **Parking:** Parking is paid and can be validated at the AIS office reception. We will meet in Room Lake Anne. We hope to see you all there!!!!

We’re excited to bring the community together for an evening of learning and connection. This time, we'll have a community member sharing a use case and, as usual, an Elastic employee sharing their expertise as well. Come support your fellow developers, learn something new, and meet others who are passionate about search, observability, and security. **Date and Time:** Tuesday, February, 10th from 5:30-7:30 pm EDT **Location:** Elastic Arlington Office - 4100 Fairfax Drive, Ste 500, Arlington, VA 22203 **Agenda:** * 5:30 pm: Doors open; say hi, grab a seat, and eat some food. * 6:00 pm: "Streaming Context: Powering Semantic Search with Kafka and Elasticsearch", by Sandon Jacobs, Developer Advocate at Confluent * 6:30 pm: Q&A * 6:40 pm: "Agent Builder: Providing Relevant Context for Data Driven Agents", by Joe Gentsch, Senior Solutions Architect at Elastic * 7:10 pm: Q&A * 7:20-7:30 pm: Networking & refreshments **Talk Abstracts:** **"Streaming Context: Powering Semantic Search with Kafka and Elasticsearch"** As the de facto platform for event streaming, we’ve seen how data from Apache Kafka can easily empower basic keyword search. But let's be real, modern semantic search applications need *context* to interpret the real meaning and intent of a user's query. We could wait around for the next batch job to kick off and provide that context... *or* we could serve it up in near real-time right from our data streams. In this talk, we'll discuss how to leverage data streams from Kafka to power much smarter semantic search with Elasticsearch. We’ll follow a simple event from a Kafka topic and see how it transforms into a powerful vector embedding. Then, we’ll see this whole flow in action using a k-Nearest Neighbor search to instantly find similar items in milliseconds. While my code examples will be in Java or Kotlin using the Spring Boot and Spring AI ecosystem, FEAR NOT! The core concepts—getting data into a vector format via a stream—are totally language agnostic. Join us to grab a few practical ideas you can take and use in your next project! **"Agent Builder: Providing Relevant Context for Data Driven Agents"** What are agents? What is context engineering? Join us as we dive into the importance of context engineering for providing relevant information to agents, and how to build grounded agents using Elastic Agent Builder. **Parking:** * The building’s parking garage is operated by Colonial Parking and is located off N. Randolph Street * Book a spot on[ SpotHero](https://spothero.com/search?kind=address&latitude=38.8818514&longitude=-77.1095268&search_string=4100+Fairfax+Dr+%23500%2C+Arlington%2C+VA+22203%2C+USA) * A Metro Station is located across the street

We all sing. In the car, in the shower, at the pub. But many of us are unsure about our ability to sing in front of other people. The Arlingtones Barbershop Chorus wants to help you get the most beautiful sound possible from your voice with the confidence to perform. We love to sing – that’s why we do it and have for over 60 years. Join us for a Tuesday evening and we'll show you what Barbershop Music is all about. No experience or materials necessary.

Put aside your train specifications and population estimates: it's time to enjoy the lighter side of transit! Come watch curated video clips about the joys of public transportation, and play trivia games on our favorite subject. Also hear an update on our plans to celebrate the 50th anniversary of Metrorail, coming up in late March, including the chance to order your own commemorative t-shirt! Hope you all can make it!

Ready to build something amazing without writing a single line of code? Or want a front-row seat to watch it all come together? Join us for an AI-powered hackathon where you’ll create an app using **Lovable** – the no-code platform that turns plain English prompts into real products. This will be an interactive, high-energy event – not a sit-down lecture. Builders will be hands-on and products will be built! How it works: * We’ll form small AI building groups – no need to come with a team. * Bring a laptop to help your team build by adding features or testing your product. * Each group will collaborate to build an app and share it at the end. * The product brief will be revealed at the start – no prep required! * All Lovable credits are covered – no fees involved. Whether you’re curious about AI tools, eager to experiment, or just want to see how others build fast, this is your chance to experience the future of app creation. Since group spots are limited, please RSVP **only if you’re sure you can commit**. **Agenda:** * **5:00pm - 5:30pm – Arrival / Networking** * **5:30pm - 6:00pm – Hackathon brief** * **6:00pm - 7:00pm – Build time** * **7:00pm - 7:20PM – Networking / Shortlist** * **7:20pm - 7:50pm – Finalist demo, voting and prizes** * **7:50pm - 8:30pm – Wrap-up / Networking** This event will be held at Amazon’s HQ2 in National Landing, Arlington. Please bring a photo ID that matches your registration name to check in with security. There are metro stops (Pentagon City, Crystal City) and parking garages within convenient walking distance. There is also some street parking available in the vicinity.

Hello everyone, we are excited host our first meetup of 2026! We'll have an amazing speaker presenting on a great topic. Hope to see everyone there! **Schedule** 5:00 pm - 5:30 pm - Sign-in/Meet and greet/networking 5:30 pm - 6:30 pm - AutoMobile 6:30 pm - 7:00 pm - Networking **Talk and Speaker Details** **Time:** 5:30 p.m. EST. **Title:** AutoMobile **Summary:** What if you could tell an AI agent "explore this app and find accessibility issues" and watch it navigate your mobile app autonomously? AutoMobile makes this possible today. AutoMobile is an open-source MCP server that gives AI agents native control over Android and iOS devices using natural language. It combines platform tools (adb, simctl) with custom Kotlin AccessibilityService and Swift XCTestService to enable AI-driven mobile workflows that are 10x faster than existing automation frameworks. Live demonstrations include: \- Install & run from scratch \- AI agent running UX deep dive\, reproducing bugs \- Accessibility & performance audits \- What running tests looks like \- Prototype IDE integration **Speaker:** Jason Pearson **Speaker Bio:** Jason Pearson spent the last 15 years building great UX across Android, iOS, Mac, Web, Backend, and Windows. Now he's applying all of that to AI tools while working at Slack in DevXP. **How to find us:** 1680 Capital One Drive, McLean, VA 22102 We'll be located in C2 **100 A**. The area is publicly accessible. If you can't find it, you can ask the front desk for directions to the **C2 100 A** **Attending Virtually?** We'll be streaming the event on Zoom [https://us06web.zoom.us/j/85740109015?pwd=1FQJyvaQp2ZgRrj5drb3a2FGVqll7H.1](https://www.google.com/url?q=https://us06web.zoom.us/j/85740109015?pwd%3D1FQJyvaQp2ZgRrj5drb3a2FGVqll7H.1&sa=D&source=calendar&usd=2&usg=AOvVaw1A-o2UNm0I1YVmkJcSCxfx) Meeting ID: 857 4010 9015 Passcode: 437286 **Parking**: You can park at 1680 Capital One Drive; this garage has a sign indicating public parking. Or at the WEGMANS parking lot.

Join us for a fun and laid-back evening at Sports & Social DC! This event is specifically designed for those looking to socialize, make new friends, and enjoy delicious food and drinks in a vibrant atmosphere. Whether you're a foodie looking to indulge in some culinary delights, or simply want to unwind with like-minded individuals, this happy hour mixer is the perfect opportunity to connect and network in a casual setting. 50% select drinks, and a great menu from Upstate FTW! Don't miss out on this chance to expand your social circle and create lasting friendships with the Sports & Social DC group! RSVP Today!

Come celebrate the anniversary of DC UW's first walk! We will be repeating the same night walk around the national mall. We will be starting from the Smithsonian metro where we will make our way to the Lincoln Memorial via the Constitution Gardens. From there, we will walk around the tidal basin. Then swing by the wharf and finally head back up to the mall walking by the castle. Start Location: Smithsonian Metro. We will be standing right outside of the mall entrance to the station. End Location: Smithsonian Metro (Same as start) Map: [Google Maps](https://maps.app.goo.gl/x2GXFokpiyg2JbVP8) Milage: 4.5 mi

Start at the old train depot. After the run, we'll meet at Mile 20 for a drink! Run starts at 6:45 pm we will head toward Sterling tonight. Run at your own pace out and back. 2 mile runners turn around at Crestview Drive. 3 mile runners turn around at Tamarack Court. 3.5 & 4 - No cross streets in this stretch. You're on your own. :-) 5 mile runners - turn around at Sterling Blvd.

Reserve a spot for free on **[Eventbrite](https://www.eventbrite.com/e/lgbtq-community-coffee-and-conversation-as-you-are-tickets-1979542188975?aff=oddtdtcreator)** so we have an accurate guest count. Make new friends and meaningful new connections. Join us for the coffee shop gathering at **[as you are](https://asyouaredc.com/)**, a wonderful safe space in DC! Look for the Go Gay DC sign on one of the tables. We will be wearing name tags. This is a good event to attend if you like facilitated conversation. When you arrive, obtain a name tag, order on your own from the [menu](https://order.online/store/26244426?utm_source=sdk&visitorId=b5386c19b7fdf41e5742da7&pickup=true&redirected=true) if you wish and gather with about 10 LGBTQ+ folk around the sofa for relaxed conversation. Feel free to invite your friends to join you. **Metro Directions:** Be eco-friendly. Metro rides are capped at $2.50 on weekends, regardless of distance travelled. Eastern Market Metro (Blue/Orange/Silver lines) is only a few blocks away. The venue is where the Banana Cafe used to be. The area is generally considered safe. There is also **free street parking in DC on Sundays**. There is a free parking lot underneath the freeway overpass adjacent to the Marine Corps barracks. This event is being boosted by **[Go Gay DC](https://www.gogaydc.com)**[,](https://www.gogaydc.com) Metro Washington DC's inclusive LGBTQ+ community focused on friendship, leadership, and service. It reaches over 10K fabulous people and is growing fast. Visit [https://www.gogaydc.com](https://www.gogaydc.com) At this event you'll even get to meet **[TJ Flavell](https://www.linkedin.com/in/tjflavell/)**, Go Gay DC's founder. This event is a safe space for everyone under the rainbow. Go Gay DC is on social media: Join the Facebook Group [https://www.facebook.com/groups/GoGayDC](https://www.facebook.com/groups/GoGayDC) Like the Facebook Page [https://www.facebook.com/GoGayDC](https://www.facebook.com/GoGayDC) Follow on Instagram [https://www.instagram.com/GoGayDC](https://www.instagram.com/GoGayDC) Follow on Threads [https://www.threads.com/@GoGayDC](https://www.threads.com/@GoGayDC?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExZG1DTnM0VnJybG83U3FWcnNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR6DYjIHThPY00YK0dJfs6boxWhgU1OyzCNzCCt0uW6sjzSp6kJpEXoyvf5j6g_aem_3gSjPJmvC57T8kdbkMU1sw) Follow on Bluesky [https://gogaydc.bsky.social/](https://gogaydc.bsky.social/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExZG1DTnM0VnJybG83U3FWcnNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR6DYjIHThPY00YK0dJfs6boxWhgU1OyzCNzCCt0uW6sjzSp6kJpEXoyvf5j6g_aem_3gSjPJmvC57T8kdbkMU1sw) Follow on X [https://www.x.com/GoGayDC](https://www.x.com/GoGayDC) Watch on YouTube [https://www.youtube.com/GoGayDC](https://www.youtube.com/GoGayDC) LinkedIn [https://www.linkedin.com/showcase/GoGayDC](https://www.linkedin.com/showcase/GoGayDC?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExZG1DTnM0VnJybG83U3FWcnNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR765Xxf5t8wFzbCac74QNX3p0Bs2oT0drXZoOmLV63J8cURMl3ta5b8iP3ztg_aem_nSdndpxd5-hXJ8myNF2_vQ) Search tags: LGBT LGBTQ LGBTQI lesbian gay bisexual transgender queer nonbinary non-binary intersex

Keep the good times rolling with our next hangout in the Best of Bars series at Kaldi’s Social House — a trendy day‑to‑night spot in Arlington that’s equal parts cozy café and lively social lounge. By day it’s known for great coffee and fresh eats, and by night it transforms into a relaxed cocktail bar with craft drinks, wine, beer, and creative cocktails that set the tone for a laid‑back night out.  🍽 Food & Drinks: Expect a fun mix of coffee favorites, brunch‑style bites, sandwiches, salads, and seasonal dishes that pair perfectly with drinks whether you’re easing into the evening or kicking things off. Their drink menu leans into both classic and inventive options, making this a vibe‑filled place to sample something new or stick with a favorite.  🤝 Meet & Mingle: This meetup is all about socializing, making new friends, and having great conversations — whether you’re flying solo or with friends. Kaldi’s welcoming atmosphere makes it easy to mingle, catch up with familiar faces, and enjoy a great crowd that’s here to have fun and connect. 🅿️ Parking & Transit: Street parking and nearby garages make driving here simple 🚗. If you’re taking transit, the Clarendon Metro (Orange/Silver Lines) is a short walk away 🚇 — perfect for a stress‑free night out. Come for the drinks, stay for the laughs, and let’s keep the Best of Bars series going strong with good people and even better vibes! 🍻✨

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Bring a lightning talk with you and let's learn some quick things. 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/

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

In this local meeting, you will discover knowledge that you can use to get over the past. The key to improving your personal motivation, self-confidence, and happiness is to get over your painful memories. When you become free of your past, you will be free from stress, anger, anxiety and depression. Studies show that negative emotions can affect your health. By being free of negative emotions, believe it or not, you will most likely even look younger, feel more energetic, and become healthier! Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is brought to you by the Dianetics and Scientology life improvement center.

We will have lunch at Cap City Diner in Gahanna at 12:00 then walk over to the theater afterwards. The Movie Solo Mio starts at 1:20.It will be posted when tickets available to purchase probably the week before then we’ll post our seat number so we can all sit together 😎

**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 **Abstract** TBD **YouTube Link** TBA

I love my job and one of the main things I do is help customers get going with any of the data technologies at Microsoft. Right now there are a lot of my customers asking about Microsoft Fabric. It's hard to weave across all the shiny new options across the Fabric landscape, let alone figure out where it fits into your organization. In this session we'll focus on answering one question - how can I get data into Fabric? We'll talk through the "it depends" options and see some of the options in live demos.

### Tools in your AI's Toolbox : An introduction to MCP Servers The generative AI revolution has unlocked unprecedented capabilities, but the next frontier is agency: empowering models to interact with, query, and act upon the world. The current challenge is the “N x M integration problem,” where every AI model requires a custom, brittle integration for each external tool or data source. This approach simply doesn’t scale. How can we give an AI access to our sales leads, code repositories, or IoT devices in a standardized, secure, and reusable way? This session introduces Anthropic’s Model Context Protocol (MCP), the open-source framework designed to solve this challenge and become the universal connector—the USB-C port—for AI. MCP standardizes how AI models discover and use external tools, moving beyond simple function-calling to a robust, client-server architecture. We will dive into how this open protocol is creating a new ecosystem for building powerful, context-aware AI agents. Join this session for a developer-focused introduction where you will learn how to: Understand the core concepts of the open-source Model Context Protocol and its architecture. Utilize pre-built, open-source MCP servers to instantly connect AI to tools like Git, Slack, and databases. Build a custom MCP server to securely expose your own proprietary data and APIs as tools for any compliant AI. Move beyond bespoke integrations and contribute to a standardized, collaborative, and open ecosystem. Stop building one-off connectors and start building intelligent agents. This session will give you the practical knowledge to leverage MCP and create the next generation of AI that doesn’t just talk, but does. Want to be a speaker? submit your talk to our Call for Presenters!!! [https://sessionize.com/azure-cbus-2026/](https://sessionize.com/azure-cbus-2026/)