Red Hat

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.

It's Reboot Hour time — and this month we've got a little something extra up our sleeve. 🐾 Join the **eWaste Warriors** community for our monthly **Reboot Hour** at **Carpool in Arlington** — our favorite spot to unwind, connect, donate your unused electronics, and talk about what's next for electronics sustainability. This month's gathering has a bear theme — and let's just say there's a reason for that. We've been working on something quietly for a while now, and our Reboot Hour crew gets to be the first to hear about it. No big stage, no formal presentation — just good drinks, good people, and a sneak peek at what the eWaste Warriors have been building behind the scenes. 🐻 Come curious. Leave inspired. **What to expect:** 🍻 Drinks & great conversation at Carpool ♻️ eWaste device drop-off — bring old phones, tablets & laptops to donate 🐻 A little bear-themed fun — yes, there's a story there 👀 A sneak peek at something new — come find out what we've been up to 🌱 The eWaste Warriors community — DC's best crowd in sustainability Whether you're a longtime eWaste Warriors supporter, a sustainability enthusiast, or just someone who wants a great Monday night out in Arlington — this is your crowd. Dress is casual. Drinks are on you. The good vibes are on us. 🐾 📅 Tuesday, April 28, 2026 📍 Carpool, 4000 Campbell Ave, Arlington, VA 🎟️ Free — RSVP so we know you're coming *Bear with us. You won't regret it.* **Details:** Tuesday, April 28th 5:00 – 7:00 PM (drop in anytime) Carpool — 900 N Glebe Rd, Arlington, VA Right off the Ballston Metro **What to bring:** Just yourself. Old devices welcome but not required. A friend, or meet a new one! **What to expect:** Pool, pinball, shuffleboard, darts, drinks, zero pressure — and a baseball game at the end of the week.

Allen Pond Park, 3330 Northview Dr, Bowie, MD \*\*\*PLEASE DOWNLOAD ROUTE PRIOR TO MEETUP. NOT A BEGINNER'S RIDE. Beginners please join us on Wednesdays at Paceline Meetup 5:30pm Ride off 6:00pm A/B Group Route (20 miles, 861 ft): https://ridewithgps.com/routes/52788042 A Group average moving speed = 20+ mph B Group average moving speed = 17-19 mph \-\-\-\-\-\-\-\-\-\- C Group Route (18 miles, 715 ft): https://ridewithgps.com/routes/42499268 C Group average moving speed = 14-16 mph \*\*\*PLEASE DOWNLOAD NEW ROUTE PRIOR TO MEETUP. NOT A BEGINNER'S RIDE. Beginners please join us on Wednesdays at Paceline \-\-\-\-\-\-\-\-\-\-\-\- This is a self-supported ride. No SAG. No Sweepers. Group Ride Guidelines: 1\. Safety first is the primary tenet of DMVCR\! 2\. Bicyclists who participate on DMVCR club rides are required to wear a properly fastened helmet\. 3\. Bicyclists may not ride more than two \(2\) abreast and may not impede traffic\. 4\. Bicyclists must come to a complete stop at all stop signs and traffic lights displaying a red signal\. 5\. Bicyclists are expected to have their bikes in proper working order\. 6\. Bicyclists are expected to ride with repair equipment in the event for flat tire\, etc\. 7\. Bicyclists should bring adequate nutrition to include enough hydration and snacks\. 8\. At night\, bicycles must be equipped with a front white light and a rear red reflector or red light visible\, both visible from 600 feet away\. Disclaimer: \*\*\*Please note DMVCR is not responsible for any accidents, injuries and/or damages or any combination thereof, which may occur to you and/or your bike. If you decide to participate on the ride, it means that you have read, understood and agreed that you are riding at your own risk and you waive all claims against all other riders who participate or organize the group.\*\*\*

A low cost, 6-week intermediate-level **中文** (Mandarin Chinese) course with the non-profit organization, the Global Language Network. \#\# Chinese \(Mandarin\) Frequent Flyer Language Class **Details:** \#\#\#\# Chinese \(Mandarin\) Frequent Flyer with Alex Tuesdays from 6:00pm - 8:00pm ET Apr 7th to May 12th In-person, Farragut Square DC * GLN classes are open to everyone over 18 years of age. * Have a credit or stipend to apply to your payment? Learn more about our credit, stipend, and refund policy on the [Pricing & Course Levels page.](http://%5B%5Bhttps://thegln.org/pricing-%26-course-levels%5D%5D(https://thegln.org/pricing-%26-course-levels%5D)(%5Bhttps://thegln.org/pricing-%26-course-levels%5D(https://thegln.org/pricing-%26-course-levels))) Ready to learn? **Register [HERE](http://%5B%5Bhttps://docs.google.com/forms/d/e/1FAIpQLSem9IdJEYqsE91SvfEEjIe8FuvoAjOusgE2ab_qkvm3apyjzg/viewform%5D%5D(https://docs.google.com/forms/d/e/1FAIpQLSem9IdJEYqsE91SvfEEjIe8FuvoAjOusgE2ab_qkvm3apyjzg/viewform%5D)(%5Bhttps://docs.google.com/forms/d/e/1FAIpQLSem9IdJEYqsE91SvfEEjIe8FuvoAjOusgE2ab_qkvm3apyjzg/viewform%5D(https://docs.google.com/forms/d/e/1FAIpQLSem9IdJEYqsE91SvfEEjIe8FuvoAjOusgE2ab_qkvm3apyjzg/viewform))).** **About GLN** We are a Washington, DC-based 501(c)(3) non-profit organization with a mission to "Use Language as a Tool to Help Fix Our World." Since 2015 we have been rated #1 Best Language Classes in Washington, DC by Yelp! We are so happy and grateful to have you join our network and we appreciate your support of our mission.

Think you aren't flexible enough for yoga? Afraid to get onto the floor? Living with physical aches or restricted range of motion? Then this is the perfect yoga class for you! Explore your body's strengths in a fun, supportive environment while maintaining and growing your range of motion, flexibility, balance, strength, and sense of peace. All are welcome in this therapeutic class. Come ready to try new things, laugh, ask questions, and support each other. **Please reserve your spot at www.piesfitnessyoga.com**. The session is offered both InStudio and OnLine. The Zoom link for the OnLine session will be emailed 15 minutes before class starts to those who are registered at www.piesfitnessyoga.com. **Sign up for sessions must be made at least 2 hours prior to class.** The address is 1322 Prince St. Alexandria, VA 22314 Our entrance is located on the side of the building, parallel to West St. **Street parking is available and additional parking is located at Shiloh Baptist church, spaces 36,37,38,39.** The church is located across the street from the studio, on the corner of Duke St. and West St. Discount is available to seniors, teachers, students, emergency responders, and military. All can save by purchasing class packs.

\#\# A low\-cost\, 6\-week intermediate\-level Spanish course with the non\-profit organization\, the Global Language Network\. Ready to dive into the world of Spanish? Join our fun and interactive class designed especially for those new to the language. **Details** Spanish Frequent Flyer with Anggela Tuesdays from 6:00pm - 8:00pm ET April 7th to May 12th In-person, Farragut Square DC Ready to learn? **Register [HERE](https://docs.google.com/forms/d/e/1FAIpQLSem9IdJEYqsE91SvfEEjIe8FuvoAjOusgE2ab_qkvm3apyjzg/viewform).** **Additional Information** * GLN classes are open to everyone over 18 years of age. * Have a credit or stipend to apply to your payment? Learn more about our credit, stipend, and refund policy on the [Pricing & Course Levels page.](https://thegln.org/pricing-%26-course-levels) **About GLN** We are a Washington, DC-based 501(c)(3) non-profit organization with a mission to "Use Language as a Tool to Help Fix Our World." Since 2015 we have been rated #1 Best Language Classes in Washington, DC by Yelp! We are so happy and grateful to have you join our network and we appreciate your support of our mission.

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.

Join us for a discussion of ***Cobalt Red: How the Blood of the Congo Powers Our Lives* by Siddharth Kara** Here's the summary: An unflinching investigation reveals the human rights abuses behind the Congo’s cobalt mining operation―and the moral implications that affect us all. Cobalt Red is the searing, first-ever exposé of the immense toll taken on the people and environment of the Democratic Republic of the Congo by cobalt mining, as told through the testimonies of the Congolese people themselves. Activist and researcher Siddharth Kara has traveled deep into cobalt territory to document the testimonies of the people living, working, and dying for cobalt. To uncover the truth about brutal mining practices, Kara investigated militia-controlled mining areas, traced the supply chain of child-mined cobalt from toxic pit to consumer-facing tech giants, and gathered shocking testimonies of people who endure immense suffering and even die mining cobalt. Cobalt is an essential component to every lithium-ion rechargeable battery made today, the batteries that power our smartphones, tablets, laptops, and electric vehicles. Roughly 75 percent of the world’s supply of cobalt is mined in the Congo, often by peasants and children in sub-human conditions. Billions of people in the world cannot conduct their daily lives without participating in a human rights and environmental catastrophe in the Congo. In this stark and crucial book, Kara argues that we must all care about what is happening in the Congo―because we are all implicated. **Let’s meet at Caboose Commons in Fairfax to enjoy some good discussion and meet new friends.**

We're back! The Cover6 Community's in-person meetup returns for round two — and if you missed the first one, this is your shot. We're keeping it intimate this time — we've got space reserved right by the bar. Perfect size for real conversations. **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 * Drinks right there if you want one **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. Seriously — 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)* 📅 Friday, May 1, 2026 🕕 6:00 PM – 9:00 PM RSVP so we know how many people to expect. See you soon! — Tyrone & the Cover6 Community team

Danceintime runs Cuban Salsa Classes & Social Dancing Every Saturday, all year-long. Come at 1:15 pm to sign in. Stay till 4 pm. Some of us go out for coffee or a bite to eat afterwards and everyone is welcome! $15/person. Cash, PayPal, Venmo, Apple Pay, or Card accepted. Chevy Chase Baptist Church; 5671 Western Ave. NW; Washington DC 20015. NOTE: Enter through back corner door of the church. Danceintime classes are great fun. The dance moves are beautiful, fun, and our class creates a bonded community... Check it out! Class will be held every Saturday in December....celebrate the holidays with dance! For more info: danceintime.com/classes Questions? Contact Barbbernsteintalks@gmail.com

Put our Gold Cup Sombreros on and party. We will have beers and drinks special, including Sangria. ¡Vamos! http://photos4.meetupstatic.com/photos/event/1/c/2/c/600_348667212.jpeg

Start with a Pisco Sour, a signature cocktail or mocktail. Enjoy ceviche just like you get in Peru, a choripan sandwich, some Lomo Saltado, Peruvian Chicken or many more delicious choices! [Check out their menu here](https://autenticoperu.com/menu/) Auténtico is born from years of dreams, sharing the rich diversity of Peruvian cuisine with Northern Virginia. Their menu celebrates variety and creativity, where traditional recipes meet subtle touches of innovation. It’s more than food, it’s a fusion of authentic flavors crafted with care, turning every plate into a story worth savoring.

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

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.

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/

Do you sometimes feel like you do well in life then something happens and you slide back, never quite getting ahead. At this Meetup you'll find out how to identify what actually causes the lows, the highs and everything in between. More importantly you’ll get the secret of how to gain control over your life so the highs are higher and the lows go away. Wouldn’t it be nice to stop the wild roller coaster ride for good? Or at least make it a fun roller coaster ride, with more ups and downs. There is a hidden factor that will be going over and you’re going to be quite surprised what it is and how much it affects your life. Be sure to click on the red "Attend" button below to come to the event. We look forward to seeing you there. This group is hosted at the Dianetics and Scientology Life Improvement Center.

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

Do you want more Self Confidence, less Self Doubt, more Happiness, less Anxiety, and more Love? This event is an introduction to how to handle irrational emotion. How often are yours or another's emotions out of control? What is that about??? I have asked these questions and after much search have found answers and am sharing. Maybe you have suffered a traumatic experience, a deep loss or been through a painful breakup? After that, you try to move on but you just can't. Possibly you have a thought or emotion that hangs around for days and you just can't shake it. What is all this stress, anxiety, depression, and self doubt? It's just crazy! It's not the real you. You can find out what is at the root of all this. This is a local event. Areas you can change with the right information: * Control of unwanted emotions * Lack of confidence * Grief * Anxiety * Anger management * Creating ideal relationships * Memory * and more... This is a local meeting that can start you on the way to a better life, more confidence and less negativity. All the happiness you have lies within you. Let's find it! 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 created by the Dianetics and Scientology life improvement center.

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9