Liferay

Happy 2026! Our first meetup of the year will be back at Zühlke's offices near Old Street, with Guillaume Faas talking about better ways to handle exceptions, Jenny Martin talking about taming complexity with OOPSI, plus the usual drinks, snacks, and plenty of time to chat. Doors 18:30, the first talk starts at 19:00 and we'll be done and heading to the pub at 21:00 to continue the conversation. **Guillaume Faas: Throw exceptions... out of your codebase** Throwing exceptions is often used to handle errors, validations, and other specific use cases. It is considered by many to be the standard way of indicating a failure and providing feedback to the caller. However, this approach can cause significant issues like being hard to detect, obfuscating the flow or leaving the system invalid. In this talk, I want to show you a faster alternative that offers more transparency and predictability. We will see how to integrate ideas from the Functional paradigm, such as "Monads", into an Object-Oriented codebase using a real-life project: Vonage's open-source .NET SDK. This talk will be the perfect opportunity to show you what they are and how easy they are to use. **Guillaume Faas** is a Senior .Net Developer Advocate at Vonage, based in Thionville, France. In recent years, Guillaume has focused on sharing my experience through mentoring, public speaking, and open-source contributions; all aimed at helping teams grow and build sustainable software. With nearly 15 years of experience in .NET development, he's worked across industries as an engineer, coach, and now developer advocate. His current focus is on developer experience: building SDKs, writing approachable technical content, and speaking at conferences around the world. **Jenny Martin: OOPSI: Making Sense of Complexity** OOPSI stands for outcomes, outputs, process, scenarios, inputs. It’s a flexible, easy-to-use collaboration framework that helps agile and product development teams cut through complexity and focus on value. OOPSI is timely because it maximises the intrinsically human aspects of effective delivery, helping teams understand how and when to collaborate, while producing lean, example-driven artefacts that clarify scope and intent so both people and automation can work more effectively. In this talk, you’ll learn how to apply OOPSI to strengthen shared understanding, clarify assumptions, and support testable delivery, using a detailed, end-to-end example. **Jenny Martin** is a practitioner, facilitator, and product discovery specialist with over 25 years’ experience working at the intersection of technology, delivery, and human behaviour. She has spent more than 15 years working with Agile and modern product development teams, helping them make sense of complexity and build shared understanding. Known as The Collaboration Coach, Jenny focuses on practical collaboration that supports effective delivery. She is currently writing a book on OOPSI.

weekly life drawing classes every Tuesday different model every week. In our Large open victorian function room. £15 to attend This is a non guided class in a casual setting. Bring your own drawing tools (we do provide the basics if you dont have any). All levels welcome! For more info contact us on 07751881112 https://www.eventbrite.co.uk/e/tuesday-life-drawing-at-the-owl-hitchhiker-holloway-road-tickets-702448551527?aff=oddtdtcreator Hope to see you soon.

London TypeScript is back! We’re kicking things off with a smaller, more relaxed social before announcing our first major event of 2026. Four Quarters is a great chain of retro arcade bars, with plenty of classic games and a laid-back atmosphere. Come along to play a few games, meet some fellow TypeScript fans, and most importantly, share your ideas and suggestions for the future of London TypeScript.

live from the Candid Skylab The Skylab life drawing studio is open to artists to draw a life model. £15 **Drop In** or book online More info here: https://www.candidartslondon.com/shop/life-drawing-book-your-in-studio-zoom-places-here/2 £15 The classes are running simultaneously on Zoom Zoom tickets here https://www.candidartslondon.com/shop/zoom-life-drawing-classes/2 £7

*Code Green London is an independently organised Green Software meetup sponsored by the Green Software Foundation.* Please join us for the latest Code Green London x Climate Action Tech meetup, sponsored by the Green Software Foundation! Code Green London is a community meetup group which aims to build the biggest green tech community in London. Join us on the 24th to learn about the latest in green software and network with London’s fantastic green tech community. Our event is designed to foster meaningful connections and collaborations that can lead to further developments in green tech and new partnerships between innovators in the field. Whether you're a seasoned green tech professional, an entrepreneur looking to launch a new venture, or simply interested in learning more about the latest developments in sustainability and technology, this is the place to be. ** The timings:** * 6:30 pm - 7:00 pm: Drinks & food * 7:00 pm - 8:30 pm: Talks + Q&A * 8:30 pm - 9 pm: Networking ** The talks** * **Lee Cameron, VP of Product, Octaipipe** OctaiPipe is a deep-tech company developing transferable control solutions for data centres, ensuring critical digital infrastructure is safe, secure, and sustainable. Lee Cameron, VP of Product, will present how OctaiPipe has used its in-house distributed AI platform to deliver its AI for Cooling Efficiency solution, and how the company will move beyond cooling towards a holistic data-centre optimiser using collaborative, federated AI. * **Mark Bjornsgaard,** **Founder and CEO, System Two Group** Mark Bjornsgaard is a founder and CEO who has grown numerous businesses from scratch to scale. Mark will be talking about heat reusing data centers, taking advantage of his experiences of founding Deep Green and Heatio, and how that is impacting the distribution of compute and the growth of edge. ** The sponsors:** * [Red Badger](https://red-badger.com/) Red Badger is the digital product transformation consultancy for blue chips and scale-ups. We work at the heart of organisations on the tough, complex challenges that get them close to customers. Making a positive impact where others fail, we embed new ways of working and build high performance platforms primed for innovation. Red Badger creates lasting business change through integrating robust product design with deep engineering expertise. * [Green Software Foundation](https://greensoftware.foundation/) The Green Software Foundation is a non-profit with the mission to create a trusted ecosystem of people, standards, tooling and best practices for building green software. ** The everything else:** At Code Green London, we believe that green tech has the power to create a better future for all of us. Join us on February 24th 2026 for an evening of learning, networking and collaboration towards building a more sustainable world. Follow [Code Green London on LinkedIn](https://www.linkedin.com/company/code-green-london/) to receive information about all upcoming Code Green London events. If you have inquiries or would like to get in touch, please contact us by email at codegreenlondon@gmail.com. If you are interested in getting involved with Climate Action Tech, you can find all the details [here](https://climateaction.tech/). Code Green London is an externally-organised group. All events are the responsibility of the organisers so please contact them if you have any questions.

**Its so great to welcome you back into the studio for our weekly drop in life drawing sessions** Our Covent Garden space is beautifully spacious and airy – with lovely high ceilings and light- a fantastic venue to add to our portfolio which we hope you will love As with all our drop in classes- expect professional tutors and models in an inspiring and unique space. With poses from 30 seconds to one hour- there is something for everyone. This is a general life drawing class with tuition for beginners and advice for those who are more experienced, all designed to encourage you to develop your own style and approach. **Please don’t come to class if you feel ill- you can rebook to another date- just email info@londondrawing.com** **Classes can be booked ahead via tickets below** **We also have drop in places available- cash or PayPal on the door** **[INFO AND TICKETS](https://londondrawing.com/tuesday-studio-in-person-tutored-life-drawing-sessions-2/)** Easels and drawing boards provided Materials available to buy, or bring your own- Paper 20p per sheet, charcoal 25p per stick **Tuesday Studio** **Every Tuesday** **7-9pm** **£15 / £10 students and under 25's** **Tickets in advance – or cash / PayPal on the door** **Venue:** 52 St. Martin’s Lane Charing Cross, London WC2N 4EA [https://westminsterquakers.org.uk/](https://westminsterquakers.org.uk/)

Join us at our next Emacs London meetup held at University College London (UCL) on Tuesday 24 February. A projector will be available, if anyone wants to give a presentation and/or if helpful to share Emacs tips, for some collaborative debugging, etc. We might head to a pub for a drink and/or a nibble afterward. Emacs users of all levels welcome! Interested in Emacs but not really a user? You're more than welcome too! **Call for presentations** Fancy talking about your favourite Emacs package? Proud of your latest Emacs Lisp hack and you want to tell everybody? Anything parenthesis-related that's bugging you? There'll be a monitor waiting for you for a short presentation!

This is a new life drawing class in Harrow-on-the-Hill. The class is open to all and we particularly welcome those who are trying life drawing for the first time. The event is hosted by Glen, an experienced life model and member of the Register of Artists' Models. The class will start promptly at 6 pm and finish on time by 8 pm. There will be a mix of short and longer poses. Drawing materials will be provided, along with tea and coffee (or a glass of wine if you prefer). Please note that the session takes place in a dedicated studio space at my home in Harrow-on-the-Hill: by day, it is a professional photographic studio. It is a private, quiet environment suitable for focused work. What better way to start your early Friday evening and weekend?  Alternative timings can be requested if Fridays do not suit you. Come along, relax and enjoy a great drawing experience! Check us out on Instagram: https://www.instagram.com/harrow_life_drawing?igsh=MW0zMnZudm9mNzVr&utm_source=qr

Life Drawing Friendly sessions for all levels run by professional artist for 16 years. U

**Be part of the next Londroid event on Thursday, 26th February 2026, hosted by Vonage.** Spend the evening enjoying Android talks, conversation and community. Expect engaging sessions, the chance to meet others working in Android, and an opportunity to speak with the Vonage team. After the event, we’ll head to **The Fox** for post-event drinks and further conversation. **Tickets:** We have 100 tickets available. Don’t miss out. Follow us on Twitter and LinkedIn for updates. **Schedule:** 18:00 – Doors open & registration 18:30 – Welcome from Londroid and Vonage 18:45 – Zachary Powell - *Beyond the Smartphone: Android’s Identity Crisis in 2026* 19:30 – Nicola Corti – *What I Learned from Publishing Libraries to Maven Central for 10 Years* 20:15 – Q&A and socialising 20:30 – Drinks at The Fox **Our Hosts and Sponsors** **Vonage** Vonage is a cloud communications platform that enables developers to integrate voice, video, and messaging into their applications using communication and network APIs. Whether you’re building video calls, creating a chatbot, or working with programmable phone numbers, Vonage provides the tools to make it happen **Novoda** Novoda is a digital product agency dedicated to building high-quality software. Their team of engineers helps companies scale, modernise and improve their development practices to deliver exceptional digital experiences. Join us for an evening of learning, collaboration and community. We look forward to seeing you there.

Accessible-format life drawing and portrait session with a range of poses from 2 minute tutor-led warm up exercises to 15 mins in the first half of the class with general tips and tuition. In the second half, a long portrait pose of 35-40 mins with a demo/draw-along led by tutor Rod who will show and talk through the process of drawing a portrait in front of the class. There is the option of doing a life drawing or a portrait as the model will be fully nude throughout. One-to-feedback given where required. Material and half-time tea provided.

**Please register on [Eventbrite](https://www.eventbrite.co.uk/e/ljc-meetup-at-capital-one-tickets-1981939102207) to join this event.** **About this event** LJC Meet-ups is a new series of events, aimed at giving all Community members an opportunity to present at an LJC event. Join us on 26th February 2026 for a London Java Community meetup hosted at Capital One. This event brings together practitioners exploring what it means to build modern, cloud‑native platforms and work effectively with AI‑powered development tools. As cloud adoption matures and AI coding agents become embedded in engineering workflows, this evening focuses on two critical themes: architecting for cloud‑native efficiency and leveraging AI agents more effectively in real‑world development. **Talk 1 – Tom Clifford‑Clarke, Lead Software Development Engineer at Capital One** *Keeping our heads in the cloud, using AI agents on the ground* Many organisations operate entirely in the cloud — but far fewer are truly cloud‑native. As architectures evolve and AI becomes a core concern, the gap between “running in the cloud” and “optimising for it” becomes increasingly costly. Tom explores why robust architectural patterns and standards are non‑negotiable today. Drawing on Capital One’s journey, he’ll cover practical approaches to Event‑Driven Architecture, serverless adoption, and service cataloguing strategies that unlock scalability, efficiency, and AI readiness — while improving the developer experience. **Talk 2 – Steve Poole, Community Director at LJC** *AI-Assisted Development and the New Risk Surface* AI-assisted coding is now a standard part of development. It accelerates delivery and reduces friction, but it also changes how risk enters our codebases. AI models replicate patterns at scale, including insecure defaults, outdated practices, and subtle flaws. In some cases, attackers can influence public training data or open-source projects, allowing weaknesses to spread quietly through tools and libraries developers trust. This talk looks at how AI-generated code fits into the modern software supply chain, and how speed, automation, and trust can be exploited. We'll examine how vulnerabilities slip past reviews, why unvetted AI output can bypass safeguards, and what these failures look like in real systems. With real-world examples, we'll focus on practical ways to review, test, and integrate AI-generated code responsibly. Strengthening your workflow instead of undermining it. AI isn't the problem. Unexamined automation is. The goal is not fear, but sharper judgment about when AI is helping, and when it needs a closer look. **Speaker Bios** **Tom Clifford‑Clarke** Lead Software Development Engineer at Capital One. Tom’s background spans large‑scale corporate software, end‑user products, and custom delivery tooling. He now focuses on cloud productivity engineering — improving developer experience and enabling teams to build high‑quality software at a sustainable pace. LinkedIn: [https://www.linkedin.com/in/tbc2/](https://www.linkedin.com/in/tbc2/) **Steve Poole** Community Director for the London Java Community. Steve is a Developer Advocate, DevOps practitioner and a long time Java developer, leader and evangelist. He’s been working on Java SDKs and JVMs since Java was less than one year old. Linkedin: [https://www.linkedin.com/in/noregressions/](https://www.linkedin.com/in/noregressions/) Huge thanks to our friends at **Capital One** for sponsoring this event and supporting our Community. This event is organised by RecWorks on behalf of the London Java Community. The London Java Community is sponsored by Hazelcast, Neo4j, Redis, and Discover

DROP IN'S WELCOME *If you'd like to book in advance, you can purchase tickets [here](http://www.soholifedrawing.com/store/p82/Thursday_Drop-In_Life_Drawing%3A_Both_Sessions.html) . Otherwise please bring cash as we are cash only* £17.00 (cash, £1 surcharge for PayPal/card payments) Soho Life Drawing is a non-profit drawing group in central London that aims to make life drawing affordable and accessible while paying our models a fair wage. We believe that creativity is an essential part of well-being that is often stifled by the demands of busy schedules or fear due to lack of experience. We want to change that. Whether you're a professional, student, or amateur artist you'll find yourself at home at Soho Life Drawing. Located in one of London's most central locations, our drop-in classes provide an easily accessible and nonjudgemental space for you to hone your life drawing skills. We offer a portfolio boosting mix of both short and long poses with new models every week, making us a great fit for professionals and novices alike. Our members come from literally all walks of life, so don't be afraid to drop by if you have no background in art--at Soho Life Drawing, you are guaranteed to find a supportive place to explore your artistic abilities. Here's why you'll love Soho Life Drawing It's a Great Space!--Our sessions are held at one of London's best kept secrets--the historic Quaker Meeting House, which provides an oasis of calm just minutes away from Leicester Square Station. Short and Long Poses!--Our sessions begin with short, gestural poses and move up to a longer sustained pose. Our models are personally vetted professionals, and some of the best in the business. No Need to Bring your own Supplies!--We provide clipboards, and pencils, paper, and rubbers are available on site. Tea and Biscuits!--Yes, that's right. We provide tea and biscuits to keep your energy up during the breaks! Also, quite often homemade cookies! Drop-ins Welcome!--No need to book in advance! So come by and check us out—we look forward to seeing you there! 6:30-7:30 PM Guided Life Drawing 7:30PM-8:30PM: Tea Break + Longer Poses We also host private events. For more information visit www.privateartevents.co.uk

Join us **the night before Elastic{ON} London** for an exclusive meetup, a perfect warm-up to the big day ahead! This is your chance to connect with the Elastic community, mingle with fellow attendees, and get energized for a full day of presentations at Elastic{ON} London. Don’t miss out! Register for the meetup and make sure you’ve also signed up for [Elastic{ON} London](https://www.elastic.co/events/elasticon/london) as well to experience a full day of learning and networking! **Date and Time:** Wednesday, February 25, from 6:00-8:30 PM **Location:** Davidson Building Address: 1st floor, 5 Southampton St, London WC2E 7HA Note: please use Exeter St entrance as the main entrance is closed after 6pm **Agenda:** * 6:00 pm: Doors open; say hi and eat some food * 6:30 pm: #Talk 1 - Re-thinking significant term discovery Mark Harwood - Ex-Elastic Core Developer and Lucene committer * 7:00 pm: Q&A * 7:10 pm: #Talk 2 - From Specs to Play: How I Built a Generative AI Game with Elastic + Microsoft AI Mike Richter - Principal Partner Solution Architect at Microsoft * 7:30 pm: Q&A * 7:40 pm: Networking and event wrap-up * 8:30 pm: Event close If you’re a long-time Elastic user or just starting your journey, this is the perfect opportunity to share ideas, meet new people, and get inspired. Invite your friends and RSVP on this page! **⚡️ Interested in giving a talk? ⚡️** Have you ever considered presenting on your Elastic use case? We welcome 5-10 minute lightning talks, 45-minute deep dives, and everything in between. If you're interested, please submit via our [CFP](https://sessionize.com/elastic-meetups/) or send us an email at [meetups@elastic.co.](http://meetups@elastic.co./)

Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel. Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger. Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life. Please visit our Official Church Website (http://raysoflightchurch.com) for more information.

We will show a variety of methods for building agents that run in Microsoft Foundry. This covers the different types of agents: Prompt, Multi, and Hosted, as well as the development lifecycle using evals and traces.

Do you sometimes feel like you do well in life then something happens and you slide back, never quite getting ahead. At this Meetup you'll find out how to identify what actually causes the lows, the highs and everything in between. More importantly you’ll get the secret of how to gain control over your life so the highs are higher and the lows go away. Wouldn’t it be nice to stop the wild roller coaster ride for good? Or at least make it a fun roller coaster ride, with more ups and downs. There is a hidden factor that will be going over and you’re going to be quite surprised what it is and how much it affects your life. Be sure to click on the red "Attend" button below to come to the event. We look forward to seeing you there. This group is hosted at the Dianetics and Scientology Life Improvement Center.

**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** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA

Do you want more Self Confidence, less Self Doubt, more Happiness, less Anxiety, and more Love? This event is an introduction to how to handle irrational emotion. How often are yours or another's emotions out of control? What is that about??? I have asked these questions and after much search have found answers and am sharing. Maybe you have suffered a traumatic experience, a deep loss or been through a painful breakup? After that, you try to move on but you just can't. Possibly you have a thought or emotion that hangs around for days and you just can't shake it. What is all this stress, anxiety, depression, and self doubt? It's just crazy! It's not the real you. You can find out what is at the root of all this. This is a local event. Areas you can change with the right information: * Control of unwanted emotions * Lack of confidence * Grief * Anxiety * Anger management * Creating ideal relationships * Memory * and more... This is a local meeting that can start you on the way to a better life, more confidence and less negativity. All the happiness you have lies within you. Let's find it! Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Dianetics and Scientology life improvement center.

Come chat about Atlassian tools and best practices at the Reynoldsburg Sunny Street Cafe and Breakfast is on Atlassian! Let's get the day started off with breakfast with your ACE Leaders! We're always excited to talk about Atlassian Products, share our knowledge and hand out swag! Come chat with us about new product news and anything you are working on within the Atlassian product stack. This is a great opportunity to come see what we are all about, hear new business news and share with other Atlassian users your questions and experiences. We'd love to see new and old friends come out to chat and learn about Atlassian! Agenda --- Moderators Kimberly Deal - Columbus Atlassian User Group Leader Kevin Stanley - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Hosted By Kimberly Deal, Atlassian User Group Leader Kevin Stanley, Chief Everything Greg Sprowls, Agility Lead --- Global Partner Atlassian (http://atlassian.com) Millions of users globally rely on Atlassian products every day for improving software development, project management, collaboration, and code quality. Partner Atlassian --- For over a decade, Atlassian customers have come together to network, share ideas, solve problems, and find new ways to use Atlassian products. Today, more than 15,000 people take part in Atlassian community events in more than 30 countries. --- Complete your event RSVP here: https://ace.atlassian.com/events/details/atlassian-columbus-presents-rise-and-shine-with-atlassian-reynoldsburg-4/.

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