Rust

Please register here: https://hazelcast.com/resources/resilient-java-in-production-meetup/ ### Modern Java systems don’t fail all at once. They fail under load, during warmup, and sometimes days after a “successful” zero-downtime deployment. Join us for an evening focused on real-world resilience in production Java systems, from JVM performance stability to the hidden risks of mixed-version state during rolling upgrades. Come for the talks, stay for the conversations. Food, drinks, swag, and a LEGO® raffle included. ### **Special Guest: Simon Ritter** Java Champion and Deputy CTO at Azul, Simon Ritter shares how to make JVM performance more resilient by reducing latency risk from GC, warmup, and JIT behaviour without changing application code. ### **Hazelcast Session** Zero-downtime rolling upgrades in distributed Java systems are hard when multiple versions of the same service and data model must run concurrently and share state. Using Hazelcast and Hazelcast Compact Serialization, we’ll show practical Java examples and tests that demonstrate how mixed versions behave and how to make those upgrades resilient in real systems. ### **What’s in Store?** * Two technical talks on resilience in production Java systems * Food & drinks included * Swag + LEGO® raffle * Networking with the local Java community Please register here: https://hazelcast.com/resources/resilient-java-in-production-meetup/

**No pressure. No plans. Just new friends ✨** Whether you’re visiting London for the first time, just arrived, or simply love meeting curious, open-minded people, this bi-weekly **Just Gutsy** meetup is an easy way to share stories, make friends, and explore the city together. **Who it’s for?** • Solo travelers • Expats & digital nomads • Locals who love meeting travelers **What to expect?** ✨ Relaxed, **self-led** gathering 🤝 Small group energy 🌍 Travel stories, tips & shared adventures 🍹 Grab a drink or snack if you like **How it works?** This is a self-led meetup, meaning I set it up for you but the magic happens between you. To make sure everyone finds each other smoothly, please follow these simple coordination steps: 1️⃣ **RSVP** Thoughtfully If you’re planning to come, tap “Going.” It helps others feel confident joining and builds momentum before the meetup. Even if you’re 80% sure, RSVP. If your plans change, please update your RSVP so others aren’t expecting your attendance. 2️⃣ **Confirm 2 Hours Before** (Essential) To ensure the meetup runs, please comment on this event page at least 2 hours before the start time: “Confirmed for today 😊” This allows everyone to see, ahead of time, who is actually coming. The meetup moves forward when at least 2 people confirm 2 hours before the event. If fewer than 2 confirmations are posted by then, attendance may be low that day. This avoids anyone showing up uncertain. 3️⃣ **Signal Your Arrival** When you arrive, comment on this event page: “Arrived” + where you’re sitting + what you’re wearing Example: “Arrived. Sitting outside near the entrance. Wearing a black t-shirt.” This ensures everyone can easily find each other. Recognition Tip Having a clear profile photo on Meetup is highly encouraged — it makes recognition effortless and helps the group form faster. **When & Where?** 📅 Day: Every Tuesday & Saturday 🕓 Time: 4:00 PM local time 📍 Meeting point: In front of Starbucks **Marble Arch.** **Arrive on time,** smaller groups make it easier to connect. **Why join Just Gutsy?** • Meet open-minded people who genuinely want to connect • Feel at home anywhere in the world • Be part of a growing global solo travel community • Early members get lifetime premium access to the future Just Gutsy app 🚀 Join here 👉 https://justgutsy.com/ WhatsApp: After attending, you’re welcome to join the London Just Gutsy WhatsApp group to stay connected and suggest spontaneous meetups: 👉 https://chat.whatsapp.com/KQbwperKYc7F0QvbWp1w9w **About Just Gutsy** **Just Gutsy** is a global community for solo travelers who are free spirited, love exploring the world believe that real connections make the best memories. Hi, I am Syrine, I started solo traveling in 2018 and it changed my life, from introvert to extrovert. Along the way, I loved meeting people, but also felt how hard it can be to find connection when traveling alone. I’m building Just Gutsy so no one has to feel alone on the road — and so anyone who’s still shy to take that first step has a welcoming place to start. 💛

Your survival depends on knowing who you can rely on. But how can you tell who your real friends are? How can you determine if a person will help make a joint venture successful? Is there a way to predict behavior? Yes. There are fundamental elements to human behavior. When you know them you have insight into your fellow man, and just by observing how people act, you will know *everything* about them. #### On this lecture you will learn: * The important role of trust in human relationships. * The Hubbard Chart of Human Evaluation—the tool to know true character and predict what people will do. * How to evaluate others accurately and guarantee a more certain future for yourself and those you care about. With the knowledge you learn on this course, you will have tools to know who you can trust and who you can depend on. *“Trustworthiness is a highly esteemed commodity. When one has it, one is considered valuable. When one has lost it, one may be considered worthless.”* *—L. Ron Hubbard*

# Beginners Hands-On Workshop: Breaking Down OpenClaw: From Minimal Installation Mode to Full-Featured Installation Mode w/ Your Own Custom Skills & More... **Registration to this event is only valid through the Luma platform:** [https://luma.com/it7a6h53?utm_source=meetup-dot-com](https://luma.com/it7a6h53?utm_source=meetup-dot-com) Hello code campers! Since **OpenClaw**, both as a project and as a tech movement, is growing, and since there is so much happening in this space, we've decided to dedicate the next **FreeCodeCamp \| AI** almost entirely to **OpenClaw,** especially following the success of the previous event. This is quite relevant since AI is moving soooo fast nowadays, making everyone scratch their heads confused while making some feel overwhelmed or have a small sensation of AI news fatigue. We will try to break down what this whole project is all about and whether or not all the hyperbolic statements about what this system can do are true. The aim for this workshop is to go through the setup process (it will hopefully take less time compared to last time because the maintainers of this project are constantly improving things), focusing on how to install the agent not only locally (virtualised, of course) but also in the cloud. We will probably look at AWS and GCP with the caveat: if you have your own server, which we encourage you to look into, the same will apply. This will be our **6th** event in our series of **local-first, open-source** AI events; therefore, we will try to focus on building a setup that doesn't depend on Big Tech but on smaller open-source tech instead. People who already have OpenClaw installed will be guided to customise it to use local LLMs or at least privacy-first cloud-based AI systems (that is because an individual's private ideas and personal project are their personal moat). At the end, we will be looking at what **SKILLS** are in the context of agents, how to build them, and if we have time, we will look at use cases for OpenClaw or, alternatively, look at emerging open-source AI agent toolkits like Pi. This workshop is open to all levels, from beginners to experts. Bring your laptop (make sure it's fully charged as local LLMs tend to be power-hungry), and don't forget to bring your coding gear (hoodie). This workshop will be accompanied by a guest speaker (full details TBA). *** ## Prerequisite First and foremost**, VERY IMPORTANT**, a VM (Virtual Machine) system like Docker/UTM for MacOs or WSL for Windows. Lastly, a local install of Ollama / LMStudio (but if you don't have any of that, don't worry, come a bit early and we will help set you up). If you want to take a quick look at the slides from the previous events fell free to do so: [https://andysign.github.io/ai-london-01/](https://andysign.github.io/ai-london-01/) (Ollama); [https://andysign.github.io/ai-london-02/](https://andysign.github.io/ai-london-02/) (LangFlow, not really related but still) [https://andysign.github.io/ai-london-03/](https://andysign.github.io/ai-london-03/) (private RAG w/ Anything LLM) [https://andysign.github.io/ai-london-04/](https://andysign.github.io/ai-london-04/) (AI-native browsers) [https://andysign.github.io/ai-london-05/](https://andysign.github.io/ai-london-02/https://github.com/andysign/ai-london-05) (OpenClaw basics) *** ## Agenda for the evening (Subject to change) **18:00 - 18:30 Arrival and networking** Mingle with fellow developers over refreshments. **18:30 - 18:45 Introductions (What is Local-First?)** Intro and a bit of audience engagement **18:45 - 19:40 Workshop** ​Hands-on technical workshop (if you are non-technical it's OK, tag along). **19:45 - 20:15 Guest Speaker (TBA)** **20:15 - 21:00 Networking** **21:00 - Closing remarks and follow-up** **END:** Carry on the fun at a nearby pub which is right @ the corner. *** ## Event Venue We'd like to extend a heartfelt thank you to **Encode Club**. [Encode Club ](http://encode.club)has spent over five years fostering a global community of developers, researchers, and founders in Web3, AI, and emerging technologies. The [Encode Hub](http://hub.encode.club) brings everything together under one roof, providing a dedicated environment for collaboration and innovation through meetups, co-working, and in-person events.

## Details Welcome to the DevSecOps London Gathering March Event on Wednesday 26 March. We bring you two amazing talks, as well as the usual conversations, pizza and beer! 📍 **Hosted at Autogen AI, Pentonville Road, London** 📅 **Wednesday, 26 March** 🕕 **6:00–8:00 PM** ## Talk 1 **Abstract:** Software supply chain attacks are no longer rare or theoretical. They are happening every day. Recent ​ incidents show how easily malicious packages can enter trusted registries and make their way into production systems before anyone notices. Today’s package managers host millions of components and support billions of downloads each week. That scale enables modern software development, but it also creates an enormous attack surface. Typosquatting, dependency confusion, malicious install scripts, and credential harvesting are no longer unusual techniques. They are now common and repeatable attack patterns. This session looks at how these attacks are playing out. Using malicious code detection data from Veracode, we walk-through real-world supply chain attack campaigns, the techniques attackers use, and the indicators that separate legitimate open-source packages from malicious ones. Attendees will see how weaponized components are identified, sometimes before they reach production and sometimes after damage has already begun. The talk also draws on industry research, including findings from the Veracode State of Software Security report, to put hard numbers behind the risk introduced by open-source dependencies and transitive trust. The session concludes with practical guidance for reducing exposure without slowing development. Topics include dependency controls, CI CD enforcement, malicious code detection, and continuous monitoring approaches that fit modern engineering workflows. ## Talk 2 **Abstract** [The National Archives](https://www.nationalarchives.gov.uk/ "https://www.nationalarchives.gov.uk/") is the official archive and publisher for the UK Government. Our records include physical records such as the Domesday Book and Magna Carta, along with digital records from UK Government departments, Enquiries, and other public bodies, held both on premise and in public cloud. It's vitally important to protect our digital records from accidental deletion and the increasing threat of ransomware. We therefore initiated a programme to implement immutable cloud backups using the AWS Backup service within a central, segregated AWS account. In this talk, we'll share our learnings from this programme of work, including: * why AWS Backup compliance mode vault locks are not always truly immutable * which KMS key types should be selected to support backup and restore to a central vault * the importance of Logically Air Gapped (LAG) vaults * how each AWS service has implemented backups differently * which widely used AWS database option doesn't support centralised backup * cost considerations for setting up backup plans We soon learnt that it's not just a case of "Turn on AWS Backup". To deploy a centralised solution, we needed to: * configure centralised AWS Backup vaults and vault policies * deploy components to workload accounts, including Backup vaults, EventBridge, IAM roles * select the appropriate vault type depending on AWS resource type We decided to implement our solution as an open-source, public Terraform Module which deploys immutable AWS Backups across an AWS Organization, to handle this complexity, and simplify onboarding new accounts and resources to be backed up. You'll come away with an increased understanding of AWS Backup, an appreciation of its complexity and limitations, and the opportunity to greatly simplify deployment of truly immutable backups across your AWS accounts, using our public Terraform module.

Дорогие друзья! Я приглашаю вас на встречу для практики русского языка как иностранного 🎉 📍 Где: Southbank Centre 🕖 Когда: каждый четверг в 19:00 💷 Стоимость участия: £5 В отличие от нашей традиционной встречи в пабе, это занятие будет более структурированным: • вы получите раздаточные материалы (handouts); • мы будем обсуждать интересные темы, делиться мнениями, дебатировать и играть — всё на русском! 🇷🇺 Эта встреча идеально подойдёт для тех, кто владеет русским языком на среднем уровне и выше, и хочет улучшить разговорные навыки в живом и увлекательном формате. Приходите — будет весело, полезно и по-русски! 😊

Every week is a badminton academy for improver/intermediate/advanced standard. I also run nine teams that play in leagues out of the academy. Unfortunately this class does not cater for beginners! Wanting people who wish to enjoy and improve with games and advice with a coach who has played county and national level badminton, and has also played for England. Just come along, bring a racket, very friendly atmosphere! Class from 7.30 - 9.30pm weekly, £14.00 per session or £35.00 for three sessions t be paid up front and must be used within six months, payable by cash only. I have coached players from beginner to international standard. Please message me with any questions. Thanks

​Join us for the 25th London PyTorch Meetup! 🔥 ​We have our first speaker confirmed: **Peter Romov** – Open Source Contributor, 2. PyTorch/Opacus Autoresearch for Discovering State-of-the-Art LLM Adversarial Attacks ​More speakers to be announced.

**Amplify Her is a live event supporting women in the music industry.** Amplify Her is a thriving community committed to empowering women in the music industry. Come join us for a hot beverage, connect with like-minded music professionals and leave inspired. Let's embrace some joy, release the self-imposed pressure, and simply enjoy each other's company. As music professionals, we navigate through ups and downs, and here, we've created a space to foster a community—supporting one another, growing together and forging ahead. Our mission is clear: to cultivate a community of female music industry professionals who not only uplift each other in advancing their careers but also champion the cause of gender equality. Together, let's move forward and make a lasting impact. **[Make sure to grab your ticket on our website, so that you receive a QR code to use upon arrival.](https://www.amplifyher.co.uk/event-details/coffee-meeting-london-2026-02-27-11-00)** **Follow us on:** [https://www.instagram.com/amplify_herLive/](https://www.instagram.com/amplify_herLive/) [https://www.amplifyher.co.uk/](https://www.amplifyher.co.uk/) [https://www.linkedin.com/company/amplifyher/](https://www.linkedin.com/company/amplifyher/)

**About the London Software Guild** ​The London Software Guild gathers developers, architects, and teams across London who care deeply about the craft of building great software. No fluff, no vendor pitches — just people who take the work seriously, sharing what they've learned the hard way. *** ## ​**Tonight's Speakers** ## ​**🎤 Kieran — Founding Engineer, Demand-Genius** ​Kieran is a founding engineer at Demand-Genius, working to close the gap between how humans and machines perceive your brand versus reality. Background in electrical & electronic engineering, previously working on real-time payments systems, high-scale distributed dynamic rules engines, and reverse proxies. Third Start-Up/Scale-Up (because I'm dumb and have never learnt my lesson). ​ **Talk: The Statistical (Un)Certainty That Our AI Co-Founder Ruins Everything** ​We have handed the most powerful text prediction machines ever built the keys to our codebases. They write code that is statistically likely to be correct. But "statistically likely" and "correct" are not the same thing. As we move toward autonomous multi-agent systems writing production code at machine speed, that gap becomes the central engineering problem of our time. ​Code is not text. It is a formal, deterministic, mathematical structure that happens to be serialised as text. Every tool in the agentic coding stack — retrieval, editing, version control, coordination — treats it as text. ​This talk argues that the answer isn't better frontier models. It's better systems around models. Specifically, the engineering disciplines we've used for a century to control uncertain systems — feedback loops, formal verification, dependency analysis, and control theory — are the missing layer between "AI can write code" and "AI can write code you can trust." *** ## ​**🎤 Andy Roberts — Senior Engineering Leader** ​Andy Roberts is a senior engineering leader with 25+ years of experience — the kind where you've actually written the code, run the teams, and been in the room when things went wrong at scale. Previously Head of EMEA Enterprise Solutions at Apollo GraphQL, where he helped companies like [Booking.com](https://booking.com/), PayPal, and The New York Times stop arguing about their APIs. Before that, Head of API Engineering at RS Components, wrangling 11 teams. Has strong opinions about federated architecture and isn't afraid to use them. ​ **Talk: Built for Browsers, Billed by Tokens** *Your microservices solved for latency. AI agents are solving for context. Nobody told your APIs.* ​Every era of software development has been defined by a constraint that reshaped architecture. In the database era we optimised for round trips. In the web era we obsessed over latency. Mobile forced us to think about bandwidth and battery. Each shift required new instincts, new patterns, new defaults. We're in the middle of another one. ​The AI era introduces a new constraint: context. Language models have finite working memory, and every API response your services return goes into it. The kitchen-sink response payloads that work fine for browsers are quietly making your AI agents more expensive and less capable — and the cost is almost entirely invisible in your existing dashboards. ​This talk maps the constraint transition from latency to context, shows what it means for the microservice APIs you have today, and offers five concrete things you can do about it without touching a line of existing backend code.

Special event for our PyTorch Friends. ## **ABOUT Agents and Robots 26 HACKXELERATOR™** * ​**Purpose:** A comprehensive HackXelerator focused on agents and robotics, spanning pre-event networking to final showcase in Berlin. * ​**Themes:** Digital agents, autonomous systems, human-robot interaction, and AI ethics. * ​**Duration:** 20 days of collaborative creation and mentoring. * ​**Agents and Robotics 26 Schedule:** * ​**March 12th \| Virtual Pre\-Event Briefing:** HackXelerator overview, rules, prizes, categories, sign-up, team formation, and Q&A * ​**March 27th \| AR26 In\-Person Kick\-off:** Inspiring keynotes on agents and robotics, expert panels across all streams, networking with sponsors and recruiters, plus yummy food and drinks. * ​**Mar 27th– Apr 17th \| Main HackXelerator:** intensive development period with mentoring, collaboration, and project creation. * ​**April 17th \| Showcase & Awards In\-Person Finale:** Project presentations, awards ceremony, and celebration party under the disco ball. ## ​HOW TO JOIN AR 26 1. ​[Sign in or sign up](https://www.kxsb.org/ar26#) to **KXSB** 2. ​Join the Discord server with the invite from the KXSB platform 3. ​Attend the pre-event virtual briefing [Agents and Robotics HackXelerator Pre-event · Luma](https://luma.com/tdi2pf5t)

伦敦线下交友局 open麦等你来 最近真的越来越觉得 在伦敦待久了，最难的不是生活 而是圈子太固定了 每天就是 上课写作业or打工 想认识新朋友，但又没有合适的场景 所以我们干脆自己办了一场👇 🎤 留学生Open Mic线下局 完全🆓🆓🆓 不是什么很正式的活动 更像是一个 👉 可以聊天 / 吐槽 / 认识人 的轻松局 🌟活动内容 ✨ 🆓奶茶+小吃 ✨ 破冰小游戏（不尴尬版） ✨ Open Mic分享（想讲就讲，不想讲就听） ✨现场抽🎁（有点小惊喜，图个开心） 🫧氛围大概是这样 不是那种很社交恐怖的场 不会强行社交 你可以： 上来分享/表演才艺anything 或者就安安静静喝奶茶 都可以 30 Churchill Pl, Canary Wharf Estate, London E14 5RE 1pm. 29/03/2026 Sun 报名方式 +vx: snjdl012 备注open麦即可

**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 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA

**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: Type Annotations with John Cassidy 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

**🌹 Meet Toledo, Ohio, USA Singles Tonight – Online Speed Dating on Zoom** Speed dating from home — meet real Toledo, Ohio, USA singles on Zoom. Each round is a quick one-on-one Zoom chat with a Toledo, Ohio, USA local matched by age and personality. A host keeps things moving and comfortable. **Pick your age group and register:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo%2C%20Ohio%2C%20USA&groupurlname=rose-quartz-singles&ar=18-32&face_v=6.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo%2C%20Ohio%2C%20USA&groupurlname=rose-quartz-singles&ar=30-46&face_v=6.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo%2C%20Ohio%2C%20USA&groupurlname=rose-quartz-singles&ar=40-58&face_v=6.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo%2C%20Ohio%2C%20USA&groupurlname=rose-quartz-singles&ar=55+&face_v=6.0) **⚠️ RSVP alone doesn't secure your spot.** You must register through your age group link below and complete the personality quiz. Places are limited. --- 🎯 **Perfect for:** - People tired of dating apps who want real conversation - Anyone who prefers connecting online before meeting in person - Toledo, Ohio, USA locals looking for personality-matched dates **How It Works** 1. **Sign up** – Click the link for your age range above. 2. **Complete the quiz** – Quick personality quiz so we can pair you well. 3. **Log in** – Join the Zoom session from home. The host runs everything. 4. **Speed date** – One-on-one rounds with personality-matched Toledo, Ohio, USA locals. 5. **See your matches** – Find out who you clicked with after the event. **Event Details** - **Format:** Hosted on Zoom – one-on-one video rounds - **Location:** Your place – couch, desk, wherever works - **Host:** Live host managing rounds and introductions - **Vibe:** Good vibes, real people, genuine conversation 💡 **Tip:** Have a couple of questions ready — helps the conversation flow. **Frequently Asked Questions** **What happens after?** Mutual matches are shared after the event. **Do I need anything besides Zoom?** Nope. Zoom, a webcam, and Wi-Fi is all you need. **Do I need experience?** No. The host guides you through everything. --- ✨ Register, take the quiz, and meet Toledo, Ohio, USA locals tonight. 💝 ✨

**New 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 topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

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

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm