GNU Linux

We are excited to announce our May Community Showcase. This event is an opportunity for individuals at all skill levels to come together and share their experiences with Rust. Whether you’re working on a personal project, contributing to an open-source initiative, or teaching a concept related to Rust, we invite you to present your work and insights. Take this opportunity to build your confidence and share what you are doing. Speakers === **Sang Young Noh** **Talk title:** FerrumMD: Building a Molecular Dynamics Engine in Rust **Abstract:** FerrumMD is a molecular dynamics engine written in Rust, built to explore high-performance scientific computing from first principles. The project implements core simulation components, including Lennard-Jones interactions, periodic boundary conditions, Verlet integration, velocity rescaling, and electrostatics via Particle Mesh Ewald. It aims to bridge computational chemistry, systems programming, and extensible design for future free-energy workflows. === **JC Campagne** **Talk Title:** DAGraph: Local reactive graph-based data analytics in Rust. **Abstract:** DAGraph is a reactive node-based canvas app for local data analytics — every cell is a node in a reactive DAG, from basic arithmetic to OLAP-style SQL. Built in Rust, it runs natively or fully in-browser via WASM, with no server and no data leaving your machine. === **Darek Luksza** **Talk Title:** Building a streaming technical-analysis crate in Rust **Abstract:** Darek will share lessons from building quantedge-ta, an open-source Rust crate for technical analysis indicators designed for streaming market data rather than batch-only calculation. The talk will cover practical problems around warmup periods, convergence, forming versus closed bars, and stateful updates, plus where Rust helped and where the ergonomics became tricky. === **Ben Knightsberg** **Talk Title:** AI and Encryption: Hmm or Mmm? **Abstract:** A wacky deep dive into modern encryption, focusing on homomorphic techniques and their practical implications through Rust. Drawing on recent work, we'll explore how secure computation can unlock value without exposing data. We'll also figure out how to successfully engage partners to invest in encryption initiatives, translating complex cryptography into tangible business outcomes and strategic advantage across multiple sectors globally.

**Join us on *Discord* to keep updated!** **[(Click me! Online Offline Discord)](https://discord.gg/uuwybw93kj)** Meetup with a group for a nice stroll in Battersea park! Bring a coffee.. or grab one in the parks café after! This event is weekly! Get out and about in Battersea park with new people! This isn't a strict walk - however it should be a scenic, fun and enjoyable walk for people of all ages, sizes & abilities! If you're looking for something more energetic have a look at some of our other group exercise activities!

**LLMday: In-Person Event on LLMs, AI & ML in LONDON** Conference focused on Large Language Models (LLMs), Artificial Intelligence, and Machine Learning, bringing together engineers, researchers, and product teams to share real-world experience building, deploying, and operating AI systems. 🫆[Speakers & Topics](https://llmday.com/2026-london-q2/) 🎟️ **Important:** Meetup RSVPs are for interest only. Still NEED registration, it is handled exclusively through Luma [here](https://luma.com/llmday-2026-london-q2?lm_source=embed) Enjoy 50% OFF with promo code: MEETUP50

Please join us for our weekly run and social - a great (free!) way to meet new people! We meet at 7pm outside The Horatia ( https://maps.app.goo.gl/p1QnyurFQh3gywov6) and head for the run together from there. You can leave a small bag or extra layer at the pub at your own risk. The winter route is around Highbury Fields and in the summer we do a loop to Clissold Park, both ending at the starting point- the Horatia pub. We run 5km at an easy pace (about 6-7 mins per km), with some people going faster and some slower. After the run, we will head to the Horatia pub for some drinks (alcoholic and soft are fine- no judgment!).

**Please register on [Eventbrite](https://www.eventbrite.co.uk/e/ljc-meet-up-at-redis-tickets-1989301512374) join this event.** **About this event** The LJC is delighted to be partnering with our sponsor **Redis** for an exciting meetup! This will be a wonderful opportunity to learn, network and enjoy great food together. Huge thanks to our friends at **Redis** for sponsoring this event and supporting our Community. **Agenda:** **5:30pm:** Doors open **6pm:** LJC and Redis intros **6:10pm:** Samuel Agbede: Designing Production-Ready Multi-Agent Systems with Spring AI **7pm:** Break & food **7:30pm:** Leif Åstrand: UI with Redis and Vaadin using 100% Java **8:15pm:** Networking **9pm:** Event finish **Speaker One:** Samuel Agbede, **Title:** Designing Production-Ready Multi-Agent Systems with Spring AI **Synopsis:** Exploring how Redis can go beyond traditional caching to support semantic caching, intelligent routing, and short-lived application memory in AI-driven Java systems. **Speaker Bio:** Software Engineer and Developer Advocate at Redis focused on AI agents and memory systems. Samuel explores how context, retrieval and state shape intelligent behaviour in real-world applications. **Speaker Two:** Leif Åstrand **Title:** UI with Redis and Vaadin using 100% Java **Synopsis:** Full-stack development can be intimidating, especially when going beyond the typical CRUD. A reactive application with real-time updates requires knowing things like WebSockets on top of the regular frontend stuff. But what if you could build a full-featured full-stack web app using only straightforward Java? No JavaScript, no HTML, no CSS. Just Java. Join this live coding session to discover how to develop a reactive web app using Spring Boot, Redis and Vaadin. Starting from scratch, we'll cover everything: real-time updates, external services, and a good-looking UI. All in Java. **Speaker Bio:** Leif has been working with full-stack web application development in various ways for the past 20 years. Building applications, building frameworks for building applications, and in the last few years mainly working to understand what it takes to build applications. Works at Vaadin in areas related to product management, research, architecture and product development. This event is organised by [RecWorks](https://recworks.co.uk/ "https://recworks.co.uk/") on behalf of the London Java Community. The London Java Community is sponsored by Hazelcast, Neo4j, Redis, and Discover You can see our latest jobs [here](https://recworks.co.uk/java-developer-jobs-london/ "https://recworks.co.uk/java-developer-jobs-london/") You can see our privacy policy [here](https://recworks.co.uk/privacy-policy/ "https://recworks.co.uk/privacy-policy/") Continue the conversation at our Slack Group: [https://londonjavacommunity.slack.com](https://londonjavacommunity.slack.com/ "https://londonjavacommunity.slack.com") Sign up here if you're not a member: [https://bcrw.typeform.com/to/IIyQxd](https://bcrw.typeform.com/to/IIyQxd "https://bcrw.typeform.com/to/IIyQxd")

**Hello there!** Our Face-to-Face Afternoon Classes are back this May in London! Are you learning English as a second language and looking for an opportunity to practise your English? Interested in **free, in-person classes**? We’ve got you covered! Here at **Stafford House,** our teachers-in-training are gaining hands-on experience by teaching enthusiastic English learners. Each lesson is interactive and fun, with plenty of opportunities to practise speaking, meet other learners, and improve your English along the way. We also offer **free online English classes**. Check out our other events for more information! Please see the **updated** details below! 🕑 **When:** From **4th May - 28th May (4 weeks)** ➡️**Mondays, Tuesdays, Wednesdays, and Thursdays** 2:30 p.m. – 4:30 p.m. ➡️**Fridays** 1:30 p.m. - 3:30 p.m 📍 **Where:** Stafford House London, 2 Southampton Place, WC1A 2DA (just 2 minutes from Holborn Station) 📚 **Level: Both levels available** **\- Pre\-Intermediate \(A2\-B1\)** **\- Upper\-Intermediate \(B2\)** Spaces are limited and allocated on a first-come, first-served basis. Please arrive **15- 30 minutes early** to secure your spot. We will ask for your name and email upon arrival. *Please note⚠️ confirming attendance on Meetup does not guarantee a place in the classroom.* **Please note that class times or dates may occasionally change due to the nature of the course. If this happens, we will inform you by email.** We look forward to seeing you all very soon! Got Questions? send us an email at [[teachertraining@staffordhouse.com](mailto:teachertraining@staffordhouse.com)]

**Everyone's talking about graphs now: What does Azure have to offer?** Microsoft Fabric now has a built-in graph database. So do you still need Neo4j? In this session we put Fabric Graph and Neo4j Aura head to head. Not as a marketing exercise, but as a practical decision guide. We’ll cover where Fabric Graph earns its place as a zero-friction, OneLake-native option for connected data, and where Neo4j Aura pulls ahead on query maturity, algorithm depth, and production readiness. We’ll run the same problem through both platforms live, so you can see the real differences rather than just read a feature table. You’ll leave with a clear decision framework: when to use what’s already in your Fabric capacity, when to bring in the specialist, and why the answer is sometimes both. **About the Speaker** Sandy is a Principal Innovation Consultant at Acora (a title all the cool kids aspire to) and Databricks Champion. He’s passionate about technology and finding the best tool for the job. Having recently worked on a project building out a knowledge graph, he’s got the experience with Neo4j to really show the differences between where it wins and where fabric wins.

**Beginner Friendly Mixed Gender Football** A friendly mixed gender football game in Regents Park. Equipment such as balls, goals and bibs will be provided. This is a beginners only game. We aim to have roughly equal numbers of men and women for each game. This is the **Mens Signup Page**. Please check the [meetup page](https://www.meetup.com/socialsportsmix/) page for the Womens Sign up Page. We also welcome non-binary and other genders to join us. **Can't put yourself down as attending or on the waitlist?** Our mixed football games are usually oversubscribed for men and so we only guarantee places for: **1\. Those who are able to bring a woman or non binary player** Please message the organiser if you can are interested in attending and can bring a woman player. We encourage couples in particular as it's a great activity for you to do together. **2\. Those who donate to our supported charity** We also currently offer 3 special invitations per event for those who are happy to donate a minimum of £5 to our supported charity. We would like our events to raise awareness and money for worthwhile charities. For more info, please visit: [https://www.justgiving.com/page/social-sports-mix-warchild](https://www.justgiving.com/page/social-sports-mix-warchild) Please get in touch with the organiser if you're interested in a charity place. We are strict in our aim in getting equal numbers and men and women for each game. We also have limits to the number of people we can accommodate. **If you turn up without invitation, you might not be able to participate.** **How it works** We meet at the venue to organise teams and for everyone to get to know each other. Here is where we meet: [https://www.socialsportsmix.co.uk/regents-park-football-and-rounders](https://www.socialsportsmix.co.uk/regents-park-football-and-rounders) This is a friendly game, no hard tackles or aggression! We will play for 60-90 minutes depending on how we all feel. You can leave early if you need to. If there is no Goalkeepers, players who are willing to go in goal will rotate every 8 mins. We recommend you bring shinpads and water. Here are our Terms and conditions [http://www.socialsportsmix.co.uk/terms-and-conditions](http://www.socialsportsmix.co.uk/terms-and-conditions)

Inviting all women and non-binary NSLondoners to a relaxed Sunday morning coffee social ☕️😌 Feel free to bring an app or code project to show and talk about, but no pressure if you’d rather just come along for a chat and to meet others in the community! Please RSVP on Meetup if you’re planning to come. Looking forward to seeing you there! All attendees are expected to follow our [code of conduct](https://nslondon.com/coc.html).

**Beginner friendly mixed football** A friendly mixed gender football game in Regents Park. Equipment such as balls, goals and bibs will be provided. You will have the choice of playing in a beginner friendly or intermediate level game. We aim to have roughly equal numbers of men and women for each game. This is the **Womens Signup Page**. Please check the [meetup page](https://www.meetup.com/socialsportsmix/) for the Mens Sign up Page. We also welcome non-binary and other genders to join us. **About Social Sports Mix** Social Sports Mix is for anyone interested in playing mixed gender sports and meeting new people in London. This event happens every Sunday throughout the Summer. You can join our events as an individual or with friends. There is no commitment to come weekly required and we welcome beginners. **How it works** We meet at the venue to organise teams and for everyone to get to know each other. Here is where we meet: [https://www.socialsportsmix.co.uk/regents-park-football-and-rounders](https://www.socialsportsmix.co.uk/regents-park-football-and-rounders) This is a friendly game with no hard tackles or aggression! We will play for 60-90 minutes depending on how we all feel and there will be a half time. There is no pressure to stay for the entire event and you can leave early if you need to. If there is no Goalkeepers, players who are willing to go in goal will rotate every 8 mins. We recommend you bring shinpads and water. We usually go for drinks in the pub or have a picnic in the park after. **Free or play for charity** Our Sunday football events are free for everyone. The organisers volunteer their time and fund for the equipment, public liability insurance, marketing and meetup costs to make this happen. We would like our events to raise awareness and money for worthwhile charities. If you appreciate our events, please consider making a donation on our fundraising page. To donate and for more info, please visit: [https://www.justgiving.com/page/social-sports-mix-warchild](https://www.justgiving.com/page/social-sports-mix-warchild) Here are our Terms and conditions [http://www.socialsportsmix.co.uk/terms-and-conditions](http://www.socialsportsmix.co.uk/terms-and-conditions)

We will be playing Rounders in Hyde Park. Equipment is provided. However, please bring a bat and ball if you have them. Min attendance: 11 If the min attendance isnt met the event will be cancelled. See you there.

The weather is getting absolutely gorgeous in London ☀️ It has been a long winter, and now it is time to go out and enjoy nature. Join us on this unique UXers Nature Walk and learn about the area we are focused on this year to drive social impact through our [Responsible Design for Change Fellowship](https://www.ux4change.org/responsible-design-for-change-fellowship/). Get a chance to meet our founder, Sandra Gonzalez, and some of the fellows who are currently enrolled in the third cohort of the Fellowship. This is a very lovely opportunity to connect with nature and our community. You are welcome to bring your pet and/or your children, especially if you are juggling half-term at the moment. We will end the walk at the Princess of Wales to share a drink and network a bit. We look forward to spending a lovely afternoon with you.

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/

🔥 Lincoln Street Salsa HAS MOVED TO EVERY FRIDAY, NO MORE SATURDAYS! 🔥 Lincoln Street Salsa @ 1717 Brice Rd, Reynoldsburg 43068 🔥 Salsa, Bachata, Merengue Dancing! 🔥 NO PARTNER OR EXPERIENCE NEEDED! 🔥 Every FRIDAY, 8 pm - 1 am 🔥 8:00 pm - 8:30 pm = Registration 🔥 8:30 pm - 9:30 pm = Beginner Dance Class 🔥 9:30 pm - 1:00 am = Open Dance Party 🔥 LincolnStreetSalsa.com 🔥 Questions? Text Todd 614-774-8146

**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 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

**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

Summer Session, Thursdays, June 4 - July 23, 2026, from 6 to 8:30pm ET **NAMI Family-to-Family** is a free, eight-week program for family members, caregivers, and partners of individuals living with mental illness. NAMI Family-to-Family provides information about anxiety, depressive disorders, schizophrenia, bipolar disorder, and other mental health conditions. Other topics covered include communication, problem solving, treatment, and recovery.

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!