Healthy Living

**Can R tame the LLM chaos? Let's find out. 🤖** Two talks. Two live demos. One evening that might change how you think about LLMs in R. Refreshments and networking from 18h00. **Agenda** \~\~\~\~\~\~\~\~\~\~\~\~ \* 16h30 – 16h45 \| Welcome and News \- Handre Williams & Luis de Sousa \* 16h45 – 17h20 \| Handre Williams: **R as the orchestration + statistical validation layer for LLMs** LLMs are powerful but unreliable. R is rigorous but underestimated. This talk explores what happens when you combine the two — using R as the orchestration backbone and statistical validation layer for LLM workflows. Handre will show practical patterns for calling, chaining, and stress-testing LLMs from R, and how classical statistical tools can keep your models honest in production. Includes a live demo. \* 17h20 – 17h55 \| Luis de Sousa: **RAG (Retrieval-Augmented Generation) in R** LLMs hallucinate. The fix? Give them better memory. This talk dives into Retrieval-Augmented Generation (RAG) in R — combining DuckDB's vector search capabilities with R's data ecosystem to ground LLMs in domain-specific knowledge. Luis will show how to build a RAG pipeline from scratch, turning your own data into a knowledge base that makes LLMs actually useful in practice. Includes a live demo. \* 17h55 – 18h00 \| Wrap up\, questions & close \* 18h00 \| Refreshments & networking — continue the conversation in person **Details** \~\~\~\~\~\~\~\~\~\~\~\~ When: 14 April 2026 @ 16h30 to 18h00 (GMT+2) Where: Microsoft Campus in Bryanston, South Africa Location: https://goo.gl/maps/4ffcC3N6T7S2 Keen to speak at a future event? Submit your session abstracts at https://sessionize.com/johannesburg-r-user-group/ **Stay connected** \~\~\~\~\~\~\~\~\~\~\~\~ \* Website: https://www.rusergroup.co.za \* Meetup: https://www.meetup.com/joburg-r-users-group \* Twitter: https://twitter.com/JHBRUserGroup \* GitHub: https://github.com/rusergroupcoza \* WhatsApp: https://bit.ly/3CeDifS

Let's head to Glenstone - a secretly famous museum in Potomac, MD. This museum has a lot to offer, in their own words: [Glenstone](https://www.glenstone.org/) is a place that seamlessly integrates art, architecture, and nature into a serene and contemplative environment. It is museum of modern and contemporary art and is integrated into nearly 300 acres of gently rolling pasture and unspoiled woodland in Montgomery County, Maryland, less than 15 miles from the heart of Washington, DC. The museum offers hiking/walking trails and we will be hiking 3-4 miles. Additionally it has two cafe's with vegan options. We will be stopping for a bit at one of them for snacks/coffee. Please note that the museum offers both outdoor and indoor exhibits that we will be visiting. **Meeting Point:** [Arrival hall next to Sycamore parking lot](https://maps.app.goo.gl/g4LyTVAKiNUSbdNz9) **Meeting Time:** 10am **Age restrictions:** 12 year and older Dog friendly? No! **No pets please.** Bathroom Facilities/Water: Yes - many. Please review the instructions and more information: * You might be asked at the gate to show tickets. Please let them know that you are part of VSDC group visit. Tickets have already been arranged for our group visit. * [Please check the group visit guide](https://www.glenstone.org/group-visits) for more information about the visit * **Outside food/beverage is not permitted** at Glenstone * [Sample menu of cafe's ](https://www.glenstone.org/dining-bookstore)\- please note that this is indicative menu only **Update Your RSVP** Out of respect for others interested in attending this event, please update your RSVP promptly as your schedule changes. We are restricted to 40 tickets and would not want any to be wasted. Be responsible! **\#\# Alcohol/Smoking/Intoxicants: Use of intoxicants such as alcohol\, cigarettes and/or illegal substances is banned during the event\.** **VSDC: More Than A Meetup** We are delighted to have you as part of The Veg Society of DC Vegan Meetup group, and we look forward to seeing you at our events. Did you know that [VSDC](https://vsdc.org/%20) is a nonprofit organization with membership benefits? With VSDC membership, you will save money at area restaurants and businesses, attend VSDC member-only events, and, most importantly, support us as a clear and consistent voice for improving the lives of all beings through community building and education centered on the benefits of a vegan diet and lifestyle. The membership fee is minimal, but the impact is significant! [Join today](https://vsdc.org/membership/)! **Ways to Stay In Touch with Us** Thank you for being part of our Meetup presence and bringing like-minded people together. We invite you to: * Become a [VSDC member](https://vsdc.org/membership/) to save money at area restaurants and support us in being a clear and consistent voice for improving the lives of all beings through community building and education centered on the benefits of a vegan diet and lifestyle. * Sign up for our[ monthly e-newsletter](https://vsdc.org/about/newsletter/) to hear more about our activities. * Follow us on [Instagram](https://www.instagram.com/vegsocietydc/) or [Facebook](https://www.facebook.com/vegsocietydc/) to engage with us. **Interested in Volunteering with VSDC?** VSDC offers many events each month, thanks to the dedication of our event planning team. Would you consider volunteering? To learn more and get started, [please visit our website](https://vsdc.org/volunteer/). **Only Vegan Food, Please** While VSDC welcomes people wherever they are on the path to an all-plant, vegan diet and lifestyle, it is our policy that only vegan food be served and consumed at our events. If you would like to [explore a vegan diet or get support in making lifestyle changes, consider these resources](https://vsdc.org/exploringvegan/). **Liability Waiver and Code of Conduct** When you sign up to attend, you automatically acknowledge [VSDC's Liability Waiver](https://vsdc.org/activity-waiver/) and commit to follow the code of conduct found at [Policies - VSDC - Veg Society of DC](https://vsdc.org/policies/). **VSDC. Creating communities. For your health, the animals, and the planet.**

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.

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.

This is NOT an official **Bike Rockville with RBAC** ride but a joint effort with our local Trek shop. Join the **Trek Rockville store** for a spring group ride in Poolesville and explore the Montgomery County Agricultural Reserve. You must be able to ride an average of 10 mph for 20-30 miles on moderate terrain. We will make an effort to stick together and regroup, but there is no sweep. Ride leader average pace is around 11.5 mph. More details and RSVP at this link: **[https://www.eventbrite.com/e/trek-rockville-spring-classic-ride-remote-start-tickets-1982550498911](https://www.eventbrite.com/e/trek-rockville-spring-classic-ride-remote-start-tickets-1982550498911)** Use this event page to share photos, feedback, carpooling and other comments.

This event is inspired by a suggestion from one of our members. I'm curious what we'll find, as I've never been to Roggenart. Join us in Reston for good vibes on a midweek morning, complete with essential fuel! (No discussions on politics, religion or potentially controversial topics. We're here to relax and have fun. Just be respectful and we'll be alright. Pay your own way, and enjoy!)

May is National Bike Month... so let's kick off the 2026 riding season with this casual, family-friendly, 6-mile loop. Join us to discover Rockville's diverse bicycling infrastructure -- including paths, bridges, and tunnels you probably never knew existed. We will be riding on shared-use paths and quiet residential streets at a pace of 10 to 12 mph. Please come with your bike in proper working condition. Before arriving, please pump up your tires, check your brakes, lube your chain, and take your bike for a test spin. Elected and appointed Rockville city officials will be formally invited to ride also. We will meet in the parking lot of Rockville City Hall. RAIN DATE: Sunday, May 3, 2026 READ THE FINE PRINT, PLEASE: • Bicycling involves inherent risks and requires that participants be in proper physical condition. When you RSVP "yes" to a Bike Rockville event, that RSVP is your digital signature attesting that you have read, understood, and agreed to the group's Liability Waiver and Release, located here: [https://drive.google.com/file/d/1BocKiaMJwba62c7b583CoOxIYamFiaWN/view?usp=sharing](https://drive.google.com/file/d/1BocKiaMJwba62c7b583CoOxIYamFiaWN/view?usp=sharing) • HELMETS ARE REQUIRED for all riders on every ride. • We strongly recommend you bring a water bottle, spare tube, cell phone, ID card, and cash or credit card for emergencies. • Rain at start cancels the ride; Wet pavement does not.