Open Source

We will have open shop hours for anyone to bring their bikes to work on or need help fixing your own bike. We will also have bikes that need to be fixed so you can learn if you like. We will need everyone to sign in when arriving and sign out when leaving so we can keep track of volunteer hours and shop times. Suggested donation of $15 per hour for use of tools and space would be appreciated. Thank you!

PLEASE CHECK THE ONLINE MEDITATION CALENDAR FOR DETAILS OF THESE MORE THAN 50 SERVICES A WEEK- https://onlinemeditation.yogananda.org/calendar/

Come volunteer with us refurbishing donated bicycles so that they can be used again by the community! This event is open to both new and existing volunteers. No mechanical experience is necessary. Note: The warehouse location is in the alley behind 1502 Mt Vernon Ave. Enter through the gray door next to a roll-down garage door. If you drive to the location, be sure to park in the street, not in the alleys or parking lots surrounding the warehouse. And wear clothes you don't mind getting dirty with bicycle grease! Please be aware that volunteers under 18 need a parent or guardian to accompany them to their first volunteer experience and sign a liability waiver, while volunteers under 16 need a parent or guardian to accompany them at all times while volunteering with Vélocity.

http://photos2.meetupstatic.com/photos/event/6/3/f/8/event_160705592.jpeg (https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=ZA8SWMLWS7WHA) NOTES 1. The conversation course is continuing education, designed to excel students' Amharic conversation skill. 2. The course runs for 12 weeks. 3. We don't give placement test. The students place themselves and they can switch to a level up or down, after they examine themselves. 4. Class cancelled due to 'Force Majeure', will be recovered at the end of the course. 5. Arriving by Metro: The closest metro stations are Farragut West and Farragut North. 6. Meter parking is also an option. It is about $ 0.25 for 8 minutes. 7. The payment for each class is $ 15.00 per person per hour. It will be $ 20.00 per person per hour for walk-ins. However, it is depending on availability. 8. Students can bring friends and pay $ 20 for 2 persons per hour. But it has to be an advance payment.

Please join our Advisors and other invited speakers to hear a presentation on investing basics. Topics to be discussed will include an overview of asset allocation, diversification, market volatility, tax efficient accounts, and general income strategies. Refreshments and Hors D’oeuvres will be served. Seating is limited and available on a first-come, first-serve basis. To reserve your spot, please RSVP today to your financial advisor. We look forward to seeing you!

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.

PyData London 2026 brings together data scientists, engineers, and researchers from around the world for three days of insightful talks, tutorials, and community connection. Hosted in one of Europe’s leading tech hubs, the event highlights the latest developments in Python, machine learning, and data science. Attendees can expect a mix of cutting-edge research, real-world applications, and opportunities to network with industry leaders. Whether you're a beginner or an expert, PyData London offers something for every level of the data science community. **THIS IS NOT A TICKET- TICKETS MUST BE PURCHASED ON CONFERENCE WEBSITE.** https://pydata.org/london2026

Come to our very first Heritage Unplugged! Celebrate identity and heritage through music, spoken word, rap, hip-hop and more. From acoustic guitar to traditional songs, poetry to freestyle — share your story in any language or style. Voices ages 16 and up are welcome — elders, youth and everyone in between. Whether you carry the songs of your ancestors or the beats of a new generation, this is a space to honor where you come from and what you're becoming. Free, noncompetitive and community rooted. **Registration is required to perform or attend. Capacity is limited.** [REGISTER HERE! (Click Green RSVP Box)](https://columbiaassociation.org/community-program/multicultural/heritage-unplugged/#event=78087416;instance=20260402174500?popup=1&lang=en-US) **Heritage Unplugged** is a space for cultural celebration, creativity, and community. By attending, you agree to: * **Respect every voice** — listen with openness and care. * **Honor diversity** — no discriminatory or harmful behavior will be tolerated. * **Hold peace** — keep words and actions kind and considerate. * **Support one another** — encourage creativity and inclusion. Together, we create a safe, inspiring, and welcoming space for all. **Location:** Columbia Art Center 6100 Foreland Garth, Columbia, MD 21045 Doors open at 5:45pm. First Act at 6:30pm. Last act at 8pm.

GM Brendan will run a game of **Weird Heroes of Public Access**. Lights! Camera! Technical Difficulties! Action! In WHPA we'll play 80s-vibes small-town TV hosts taking on monsters or \ angry parent groups. New players welcome! No prep needed! **Where**: 1111 Belle Pre Way, Alexandria. Right across the laneway from Lost Dog. Looking for a place to play in-person RPGs and make new friends? Burnt out on internet D&D? Interested in trying games like Shadowdark and Dungeon Crawl Classics? Look no further than DMV RPG - Open Table! Whether you're a seasoned player or just getting started with tabletop role-playing, our group offers a welcoming, inclusive, and safe environment for all gamers to gather and embark on epic adventures together. From Dungeons & Dragons to sci-fi sagas, there's something for everyone here. Join us for regularly scheduled meetups, make new friends, and unleash your imagination in a fun and collaborative setting. Let the games begin! **Rules**: always teachable at the table **Gaming is for everybody**: Welcoming, inclusive, and safe **Pregens**: the GM will have pre-made characters so you can jump right in **Game**: Old School & New School, but likely lightweight **Multiple GMs**: We run games in a rotating GM format, so come to play and make friends, but we'll be looking for your interesting one-to-three shots to try.

**\*GET TICKETS AT - [https://www.socialevents123.com/event-details.aspx?id=13425#tix](https://www.socialevents123.com/event-details.aspx?id=13425#tix)** (Multiple Meetup groups are co-organizing so the RSVP's shown are just a very small portion attending. .) Do you like word games and enjoy playing with others? Then this is your opportunity to have some fun online playing word games our Live Word Game Night Party. These will include Word Twist, Categories, Rebus and more. We will email you everything you need to play! You will also get to socialize and make other friends all from the safety and comfort of your home! Plus, winners receive Amazon Gift Cards, free events, and more! **\*GET TICKETS AT - [https://www.socialevents123.com/event-details.aspx?id=13425#tix](https://www.socialevents123.com/event-details.aspx?id=13425#tix)** \*After you purchase ticket, you will get the zoom link ON DAY OF THE EVENT. $15- $20 depending on how early you register for ticket. HOW IT WORKS: 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. You can attend via a computer/ webcam or smartphone/iPad/tablet. At game time, your host will show you a word search board. Your goal is to come up with as many words as you can within the specified time frame. We will have multiple rounds of play and have a system to also virtually introduce you to other participants. The people who made the most words, will get a raffle ticket for a chance to win a prize at the end of the event. You also can earn raffle tickets for audience participation and finding certain bonus words. Winners receive Amazon Gift Cards, free events, and more! We will also play several other games including Word Twist, Categories, Rebus and more. **RSVPS on here are NOT reflective of actual attendance as this is a mlulti group event. \*GET TICKETS AT - [https://www.socialevents123.com/event-details.aspx?id=13425#tix](https://www.socialevents123.com/event-details.aspx?id=13425#tix)**

Date: June 7 2026 Sunday 10:00 am - Noon EDT Full title: Machine Learning for Reliable Quantum Computing: An Algorithm–Hardware Co-Design Perspective Summary: Reliable quantum computing requires co-design across the full stack, including algorithm structure, compilation, and execution, rather than isolated optimization of any single layer. This talk presents a unified framework in which these layers are jointly optimized under realistic hardware constraints. Structure-aware compilation exploits algorithmic interaction graphs to reduce circuit depth; joint optimization across mapping, term ordering, and algorithm parameters yields significantly improved success probability; and execution-layer analysis reveals that error mitigation effectiveness depends critically on circuit symmetry and native gate choice. While demonstrated on superconducting quantum processors, the underlying co-design principles are potentially transferable across architectures. Building on this foundation, the talk highlights machine learning as the key enabler for closing the feedback loop: data-efficient, parameterized noise models learned directly from workload execution data achieve substantially improved predictive fidelity over vendor models without the overhead of dedicated characterization. These insights situate the co-design perspective within the emerging framework of quantum deep learning. In this broader setting, the talk also presents an operational definition, a unifying taxonomy, and a benchmarking protocol grounded in explicit resource contracts. Speaker: Dr. Yanjun Ji has an interdisciplinary research background in Physics and Computer Science. In 2020, she completed my Master's degree in Theoretical Physics at Saarland University. In 2024, she earned her Ph.D. in Computer Science at the University of Stuttgart. She is currently a postdoctoral researcher at Forschungszentrum Jülich. She is committed to interdisciplinary research at the cutting-edge convergence of quantum computing and artificial intelligence. Her research encompasses both foundational theoretical investigations and the development of practical applications, aiming to serve society and benefit humanity. Moderators: Dr. Pawel Gora, CEO of Quantum AI Foundation [Quantum AI Foundation](https://www.qaif.org/ "https://www.qaif.org/") Dr. Sebastian Zajac, member of QPoland [QPoland - QWorld](https://qworld.net/qpoland/ "https://qworld.net/qpoland/")

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!

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!

Odoo Academy is a series of **one-day**, **FREE training** sessions where participants can learn directly from our **seasoned experts**. Master a specific **Odoo application** or delve into **industry-specific** functionalities. Join us in our **Columbus, OH** for hands on training in Odoo's Accounting app and take your business to the next level! Training will be given in **ENGLISH**. Lunch is **included**. Participants must bring their **OWN laptop** for the practical exercises. For any inquiries, feel free to reach out to us at ellee@odoo.com. [Register Here Now! ](https://www.odoo.com/r/8yd)**[\[](https://www.odoo.com/r/gO9)Limited Seats Available!]**

Where innovation meets practicality. Join us in **Columbus, OH** for our **immersive event** featuring dynamic, audience-driven demonstrations showcasing the groundbreaking features of our software. We'll cover a wide range of topics, from Manufacturing and Accounting to Inventory Management, Sales/CRM, and eCommerce, as we **delve into the capabilities of Odoo 19**. Discover how it can transform your business processes and support your journey towards digital transformation! Attend for FREE -[ ](https://www.odoo.com/r/dKG)**[Register now!](https://www.odoo.com/r/QU4)** For any inquiries, feel free to reach out to us at ellee@odoo.com

Main Library, Meeting Room 2B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd