Hackathons

# 🧠 **Build With Me #1: Prompt to Product (Live Demo Night)** 🗓 Wednesday \| 7–9 PM 📍 Venue: Martha Washington Library Ever had an idea… but no clue how to actually build it? In this session, we’ll take a simple idea and turn it into a real, working product — live. No slides. No theory. Just building. *** ## ⚡ What You’ll See * Idea → working app in real time * A project dashboard built from scratch * A landing page generated and refined live * How AI improves as it learns your context *** ## 🧠 What You’ll Learn * How to talk to AI effectively (prompting that actually works) * How to go from vague idea → structured build * How non-engineers can start building real tools *** ## 🎯 Who This Is For * People with ideas they haven’t built yet * Developers curious about AI workflows * Founders, operators, and side-hustlers *** This is your starting point. Come see what’s possible — and how fast you can get there.

Wednesday night skate and chill is our weekly group ride. DCESK8 has been hosting this weekly ride for several years now. We are very active in our group chat and that is where you will find the most up to date information on the rides. Follow the link below to join. Join our Telegram chat here https://t.me/dcesk8 to stay current on what's going on in DCESK8. Our ride meets up at the Lincoln Memorial, near the southwest side of the Reflecting Pool and the Korean War Memorial. That is on the left side if you are looking at the Lincoln Memorial. We meetup at 6:30pm, with the ride leaving at 7:00pm.

**The next GeoDC will be held on Wednesday, May 6 from 6-9pm at Sudhouse DC (1340 U St NW, Washington, DC 20009) with the program starting at 7pm.** We’ve got 3 presentations scheduled for the evening– Please check out the program details below. Join us early from 6-7pm to grow your network, socialize and grab drinks and appetizers, compliments of our sponsor for the month, [Voyager](https://www.voyagersearch.com/). Please remember to [RSVP through the GeoDC Meetup page](https://www.meetup.com/geo-dc/), and we hope to see you in a few weeks. *If you’d like to present or sponsor a future GeoDC Meetup, please complete this [form](https://forms.gle/QbAXPfrDnX12GGaS8).* **Brian Davidson:** **Zero to Map: A 10-Minute Geospatial Speedrun with Gemini** * Think building a functional mapping application requires hours of boilerplate and API frustration? Think again. In this talk, we’ll race against the clock to build a live mapping app from scratch using Gemini and Antigravity. You’ll see how to leverage LLMs to handle everything from a mapping provider integration to complex coordinate rendering in minutes. Whether you’re a seasoned GIS pro or a curious dev, my hope is you'll leave with a better understanding of how to turn your idea into a working map before your coffee gets cold. **Noah Goodman**: **Voyager** * The Voyager platform has enabled customers to resolve data management issues, such as duplication, lack of governance & metadata. Demos of the Voyager platform capabilities and will discussion of a recent State DOT project. **Dr. Aditya Kapoor: Assessment of Inundation Dynamics in Nebraska Using AlphaEarth Foundations** **Embeddings** * This study demonstrates that AlphaEarth Foundation Embeddings (AFE) provide a highly efficient, "analysis-ready" framework for mapping regional surface water inundation without the computational burden of traditional multi-source data fusion. By applying Random Forest classifiers to AFE data across 901 Nebraska lakes from 2017 to 2025, I found that this method outperformed existing products like Dynamic World, which exhibited estimation errors of up to 43.8%. The analysis revealed a critical environmental trend: a mean inundation decline of over 6,600 m² per year, closely mirroring a regional rainfall reduction of 14.18 mm/year. Ultimately, the findings highlight AFE as a scalable tool for identifying hydrological instabilities, particularly in smaller water bodies, offering significant advantages for real-world water resource planning and flood risk assessment.

James is out of town this week, so let's draft my variant of the famed 100 Ornithopters cube, featured in [this video by Rhystic Studies](https://www.youtube.com/watch?v=Pddm1gbBuWE). My list is slightly different, but keeps the same design philosophies, although there might not be exactly 100 Ornithopters. The cube has no creature tokens, no creature lands, and no ways to kill your opponent without the card having something to do with controlling or having Ornithopters. My cube list is below: [https://cubecobra.com/cube/list/100ishornithopters](https://cubecobra.com/cube/list/100ishornithopters) The event will take place at a **NEW LOCATION** in Arlington, near Ballston Quarter, and the Ballston metro, accessible through the Orange and Silver lines! Feel free to contact me through Meetup or call me at 9194578870 if you have any questions about getting to the location. **CONDUCT POLICY** We cultivate a safe, friendly atmosphere. Please keep other's feelings close to mind. Derogatory comments of any kind are unacceptable, as is behavior that may make others uncomfortable, such as rage-quitting. If the stresses of the game are getting to you, we encourage you to politely sit out for a while. Thank you!

Looking for a new skill? Want to seem mysterious when people ask about your hobbies? Enjoy puzzles? Lock picking might be right for you! Is this legal? Yes! Is it fun? Yes! The meeting is very casual, come and go as you please. We meet in the upstairs area of Board Room. No payment, skills, tools, or RSVP necessary. If you can make small precise movements with your hands, you can learn to pick locks. Introductory talk at 7pm. All are welcome. We meet in a bar but minors are allowed to attend. We are not in a private room; parental discretion advised. If you are a minor or are responsible for one who's attending, please email the organizer in advance at chapter-DC@toool.us Open invite; bring friends! We are the DC chapter of TOOOL. More information here: http://toool.us/

Join the St. Augustine Society every Wednesday at 7:00 pm in St. Timothy Catholic Church's New Parish Hall for study on the Church Fathers! We'll read and discuss a chapter a week from the book: Reading the Church Fathers: A History of the Early Church and the Development of Doctrine by James Papandrea Email staugustinesociety@sttimothyparish.org for more information or if you have any questions. Sponsored by the St. Augustine Society, a 30's to 50's Catholic singles ministry based at St. Timothy's in Chantilly. We host weekly meetings on Wednesday on topics related to the Catholic faith and serve as both a fellowship meeting and a learning opportunity. We also host monthly social events, which are usually advertised by email to our members. Email us if you'd like to get on our email distribution list.

Join Service Design DC for a community movie night focused on learning, reflection, and connection through two keynote presentations from last year’s Service Design Global Conference. SDGC25 brought the global service design community together around the theme “Business Transformation by Design,” exploring how service design can influence strategy, operations, and customer experience across organizations. For this gathering, we’ll watch 2 selected talks from SDGC25, then open up a casual group discussion about what resonated, what feels relevant for our work now, and what these ideas might mean for service design practice in DC. The 2025 conference centered on service design’s role in helping organizations navigate cross-functional transformation, making these talks especially relevant for practitioners working across systems, teams, and change. **What to expect** * Watch 2 selected presentations from SDGC25 together. * Casual facilitated discussion after each talk. * Time to connect with other service design and adjacent practitioners in the DC area. **Evening Agenda** 6:00 P.M. - Doors Open + Socializing & Networking 6:30 P.M. - First talk highlights + conversation 7:15 P.M. - Second talk highlights + conversation 8:00 P.M. - Wrap up **Many thanks to our host and sponsor, MediaBarn!** *Mediabarn’s customer-centric philosophy defines who we are.* *In its simplest form, we are committed to applying Human-Centered Design (HCD) methods to understand customer needs, collect feedback, and use that feedback to improve services and products. Whether it’s for customers, citizens, or employees, our Experience Design Studio creates research-informed designs to improve the experience of every human involved.*

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!

Join us as The Washington Area Roadskaters lead you on a different adventure every week, skating through and around our Nation's Capital! Skate description will be placed here as the route is published. For up to the minute details, check Facebook and Instagram. Facebook: https://www.facebook.com/groups/WashingtonAreaRoadskaters/events Instagram: https://www.instagram.com/weareskatedc/ We hope to see you Sunday!

This meetup is designed to be an open forum amongst our community. We intend for it to be an opportunity for members to showcase what projects we've been working on this year related to Linux and AWS. If you are a current (or aspiring) professional looking for a practical way to build your experience with Linux and cloud computing, this event is for you! About us: Respect The Tech is an organization focused on information technology education and innovation. Our mission is to innovate technology education through virtual labs and gamified training. All of our team members are experienced professionals in the cybersecurity and cloud computing field. We are based out of the DMV and aim to serve the DMV with the same tools that enabled us to be successful with technology. ______________________________ Requirements: A functional laptop AWS account created and ready to use (free tier recommended)

Bring your lights for the “Friday Night” Skate! **Join us for the Friday Night Skate!** See the monuments of DC all lit up at night! We will meet at the National World War I Memorial “Pershing Park” at 7pm. We’ll warm up with a nice easy skate to the Capital and skate along the mall and museums to the National Monument. We will then head to the Lincoln Memorial through the World War II Memorial. Those interested in just a 5.5 mile skate can backtrack to Pershing Park. The group will then proceed from the Lincoln to Haynes Point via Ohio Drive with the option to take the 3 mile loop (12 mile total skate) or sit by the water and enjoy the crisp air (8.5 mile total skate.) There are three options to loop back to the Pershing Park WWI Memorial and our path back will depend on the preferences / skill of the group. The skate is mostly flat on good pavement with a small slope coming down from the Washington Monument and a 40 yard small slop from the Lincoln to Ohio Drive. If skaters are more advanced we will cross the 14th St bridge, enjoy a few up and down hills and finish with a downhill through the 12th St. tunnel. Please feel free to jazz it up with lights, I wear a helmet bike light, a fun set of lights and lighted wheels! Wear your lights so you have fun, can see and be seen! In case of bad weather, I will cancel the skate by 6pm on this post. **Of course, all skating is at your own risk.**

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/)).***

What does it look like when ideas come to life? Join NOVA Scribes and MAFN for a full-day, in-person open house where the public is invited to step inside the world of facilitation. This is a come-and-go experience designed for curiosity, exploration, and conversation. Whether you are new to facilitation groups, you are welcome. The space will be set up as a "theater in the round," (see the image) with facilitators working live around the room. Throughout the day, you will see different techniques, styles, and modalities demonstrated in real time, from visual templates, facilitation tools, and decision-support methods. You can observe, ask questions, and engage directly with the practitioners as the work unfolds. **What you can expect** * Live demonstrations of facilitation techniques * Multiple practitioners working simultaneously, each with their own approach and style * Short, informal demos and tiny teaches that explain how and why specific techniques are used * Opportunities to talk one-on-one with experienced facilitators * A chance to see how facilitation can support sensemaking, alignment, and group dialogue **What you might explore** * Methods and templates for planning, strategy, and reflection * Facilitation methods that support participation and decision making * Tools, materials, and setup considerations for live work This open house is designed to be accessible, hands-on, and inspiring. You do not need to stay all day. Come for 20 minutes or stay for hours. Watch ideas take shape. Notice how facilitation can change the energy in the room. Ask the questions you have always wanted to ask. If you have ever been curious about how facilitation works and supports groups, this is your chance to experience it up close. **Open to the general public. No prior experience required.** We’re not charging for this workshop, but we will be asking for donations!

**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

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!

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message \*\*Chris (the organizer)\*\*with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.linkedin.com/company/transformlabs/) Sign up also accessible via [Transform Labs Luma](https://luma.com/transformlabshq)

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant. *** Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'! Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life. Mission: grow, support, and provide community for atheists in Central Ohio. Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision. Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge. Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Short North Street Skates return Saturday, April 4 and we’re excited to get back rolling together. These weekly rollouts are a chance to move through the city as a group, build community, and create more visibility for skating and small-wheeled movement in Columbus. Details: Meet: 1160 N High St 9:30 AM meet 10:00 AM rollout All wheels welcome We’ll be skating through the Short North and surrounding areas at a steady, social pace. Routes will use a mix of streets and bike lanes, so comfort navigating the city is helpful, but you don’t need to be an expert. If you’ve been meaning to come out, this is a great place to start. Come solo or bring a friend!

FREE event [https://www.ccad.edu/chroma](https://www.ccad.edu/chroma) Friday, May 15, 3–7 p.m. CCAD campus, 60 Cleveland Ave, Columbus, OH Join Columbus College of Art & Design for *2025* *Chroma: Best of CCAD*, our annual campuswide exhibition showcasing outstanding student work from across the college’s academic programs. This faculty-juried show features select work from CCAD students of all class years, and is a can’t-miss end-of-year campus celebration recognizing their tremendous achievements. It’ll be a night of fun and entertainment, with interactive games, animation and film screenings, art symposiums, poetry and prose readings, and more (along with some of the best local food trucks). *Chroma* is free and open to all. Many exhibitions including... **Game Art & Design:** **DSB, first floor, Welcome Center lobby and Room 115**