Red Hat

uSwitch is located on the first floor of the ZPG building at 5 Copper Row, London, SE1 2LH, London (Click on the map for directions) What 3 words location: [https://what3words.com/puts.sudden.else](https://what3words.com/puts.sudden.else) The Clojure dojo is a collaborative way to learn Clojure/ClojureScript through practice. The aim is to learn a little more than before you started. This event is for those new to coding through to more experienced developers. We organise into small groups (2-4) people and write code to solve challenges great and small, chosen by those at the event. We aim to ensure someone in your group has some Clojure experience, so you shouldn't feel lost (well no more than all developers do when Stack Overflow is broken). Example challenges for the coding dojo are listed on this website: http://www.londonclojurians.org/code-dojo/ Various past exercises have been loaded to [https://github.com/ldnclj](https://github.com/ldnclj/lisp1.5/blob/master/src/lisp1/5.clj) # Approximate schedule: 18:40 Doors open and start collecting suggestions 18.45 Pizza should have arrived 19:00 Quick intros and vote on suggestions 19:15 Break out into groups and start practising 20:45 Gather together for a quick show and tell # What should I bring? We organise into small groups, so if you have a laptop with a working Clojure environment please bring it along (there are lots of online Clojure environments, so you can just use your browser too). # How do I get in to the building? At the glass doors press the buzzer to inform the security guard you are here. Say you are here for the event on the first floor. Is there way to talk with the Clojure community? Why yes. The Clojurians Slack channel is full of friendly people who love to try and help. People based in London are often in the #clojure-uk channel. Sign up for a free account to the Clojurians Slack community via http://clojurians.net/ What is Clojure? Clojure is a JVM language that has syntactically similarities to Lisp, full integration with Java and its libraries and focuses on providing a solution to the issue of single machine concurrency. Its small core makes it surprisingly easy for Java developers to pick up and it provides a powerful set of concurrency strategies and data structures designed to make immutable data easy to work with. If you went to Rich Hickey’s LJC talk about creating Clojure you’ll already know this, if not it’s well worth watching the Rich Hickey “Clojure for Java Programmers” video or Stuart Halloway “Radical Simplicity” video .

# Every Tuesday – Fulham Salsa & Bachata Club [Fulham Salsa & Bachata Club, St. Dionis Church, 18A Parsons Green, FULHAM SW6 4UH](https://maps.app.goo.gl/G8sxwjb8iWVNPizr7) **7 pm – 10:00 pm** **Bachata classes: 7:15 pm – 8:10 pm** **Salsa classes: 8:20 pm – 9:20 pm** **FREE Social Dancing till 10 pm** * 1 min walk from Parsons Green station. * Free parking on surrounding streets after 6:30 pm * Absolute beginners are warmly welcomed to dance * No partners required * No prior bookings are needed, turn up and dance. * No alcohol allowed * You can bring your own soft drinks. Water will be provided. * Fun & friendly classes for dancers of all levels. Social dancing to the best and latest Salsa, Bachata, Cha-Cha, and Latin grooves.Wear comfortable shoes and light clothes, to keep you dancing comfortably all night * **[£16 for Both Classes + Social Club](https://www.incognitodance.com/product/ticket-for-fulham-salsa-bachata-club/)** * FREE social after-classes [Link to event](https://www.incognitodance.com/fulham-salsa-bachata-club/) To buy any of our award-winning classes online for our other venues, simply click on the package of your choice. The class credits can be used at any of our venues at any time in a 12-month period. **New Salsa & Bachata courses (includes free entry for social) for any level:** * [3 weeks SALSA BRONZE](https://www.incognitodance.com/3-week-salsa-bronze-course "3-week-salsa-bronze-course") @ £45 * [6 weeks SALSA SILVER](https://www.incognitodance.com/6-week-salsa-silver-course "6-week-salsa-silver-course") @ £84 * [9 weeks SALSA GOLD](https://www.incognitodance.com/9-week-salsa-gold-course "9-week-salsa-gold-course") @ £117 **Incognito Dance also still teach regularly at [Wimbledon Salsa & Bachata Club, ](https://www.incognitodance.com/salsa-classes-courses-mondays-at-wimbledon-salsa-bachata-club/)[Putney Salsa & Bachata Club, ](https://www.incognitodance.com/fridays-at-new-putney-salsa-club/)[Hammersmith Salsa & Bachata Club, ](https://www.incognitodance.com/wednesdays-at-hammersmith-salsa-club-hammersmith-london/)[Fulham Salsa & Bachata Club](https://www.incognitodance.com/fulham-salsa-bachata-club/)**

We're excited to be back and pleased to say this event is being sponsored by [pgMustard](https://pgmustard.com). On the talks front, we have **Anton Borisov and Vlad Bokov** from Fresha who will take us through how they recently upgraded their fleet with zero-downtime. We will then host our first ever debate, on a topic to be determined! WHERE Join us at **Doggett's Coat and Badge on 14 April from 18:30.** PROGRAM 18:30 Welcome 19:00 Swapping the Elephant Without Breaking the Room: Zero-downtime Major PG upgrades in practice (Anton Borisov and Vlad Bokov, Fresha) - abstract below 19:45 Sandwiches and bar snacks (paid for by our sponsor) 20:00 Debate — topic TBD ABSTRACT **Swapping the Elephant Without Breaking the Room: Zero-downtime Major PG upgrades in practice** Upgrading PostgreSQL across hundreds of production databases without downtime sounds impossible, especially when logical replication slots, Debezium CDC pipelines, and outbox event streams are in play. At Fresha, we faced exactly that: mission-critical workloads still on PostgreSQL 12, and no safe way to reach 17 without freezing the business. This talk walks through how we designed and automated a blue-green upgrade framework using logical decoding, controlled WAL overlap, and connector orchestration. We’ll dive into how Debezium connectors, replication origins, and PgBouncer pools were coordinated to guarantee continuity for both CDC and outbox topics, with rollback and dry-run modes built in. Attendees will learn practical techniques for: * Orchestrating zero-downtime Postgres major upgrades on RDS or self-managed clusters * Managing replication slots and Debezium connectors safely across clusters * Handling sequence alignment, WAL overlap, and connector state transitions * Designing reversible, testable database cutovers This is a practical session from real production experience: no magic tools, just PostgreSQL internals, Debezium, careful planning, and a few well-placed bash scripts. SPEAKERS **Anton Borisov** architects real-time data systems centered on PostgreSQL. At Fresha, he designs zero-downtime migrations, Debezium-based CDC pipelines, and overall data strategy integrating Postgres with Kafka and Flink. His work spans query planning analysis, partitioning and indexing, autovacuum and bloat optimization, and performance tuning under high-concurrency workloads. He also builds downstream lakehouse integrations with Iceberg, Paimon, and StarRocks. Anton publishes technical deep-dives on PostgreSQL internals, streaming infrastructure, and production reliability at medium.com/@borzoniusy **Vlad Bokov** is a Staff Engineer at Fresha working on systems behind activity feeds and communication between partners and customers. He deals with what breaks at scale: PostgreSQL under heavy write load, WAL bottlenecks, replication issues, Kafka pipelines, and zero-downtime migrations. Most of his work is about making production systems behave: fixing what is slow, unstable, or too expensive, and making trade-offs that hold up under pressure. He works across Snowflake, StarRocks, PostgreSQL, Elasticsearch, and Redis, and is currently exploring newer streaming approaches, including Apache Fluss, for real-world workloads. *** THE OFFICIAL BITS The meet-up abides by [PostgreSQL Code of Conduct](https://www.postgresql.org/about/policies/coc/). Postgres, PostgreSQL and the Slonik Logo are trademarks or [registered trademarks of the PostgreSQL Community Association of Canada](https://www.postgresql.org/about/policies/trademarks/), and used with their permission.

Have a fun session learning Bachata and Salsa with strangers every Tuesday! Bring a date or bring a mate!

*We have limited space, but we will do our best to record the event and publish on our [YouTube channel](https://www.youtube.com/channel/UC_a-vGdkAIRMKT1zzZ4I2ag) soon afterwards.* \-\-\-\- \-\-\-\- \-\-\-\-\- Flutter London will be back with another exciting event for 2026! We look forward to seeing some familiar and new faces. We are excited to announce the next FlutterLDN on ***Tuesday 14th April*** is being hosted at [Pod Point](https://pod-point.com/), (thanks go to [Few&Far](https://www.fewandfar.io/) for helping to arrange this). We're thrilled to deliver the familiar setup we all cherish and enjoy. Join us for an evening filled with insightful talks, networking opportunities, and a delightful surprise spread of food and drinks, thoughtfully put together by [George](https://georgemedve.co.uk/) and [Tom](https://www.linkedin.com/in/tomshannon1/) team - guaranteed to impress and satisfy. **The venue address is:** [Pod Point](https://pod-point.com/) 222 Gray's Inn Road, London, WC1X 8HB maps: [https://maps.app.goo.gl/vzLKj7G47u8ReRjw7](https://maps.app.goo.gl/vzLKj7G47u8ReRjw7) ⏰ **Schedule:** [6:00pm] Arrival & registration [6:15pm] Drinks and snacks and socialising (sponsored by [Pod Point](https://pod-point.com/) and Few&Far) [6:45pm] Introduction from FlutterLDN and [Few&Far](https://www.fewandfar.io/) [7:00pm] **Talk 1:** Raouf Rahiche \| Make Every Minute Count in Your Flutter Pipeline [7:45pm] **Talk 2:** Matt Meades \| Powering the Tewke smart light switch with Flutter [8:30pm] Q&A and networking [9:00pm] Drinks and chat: TBD \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 🌟**Talks and Speaker Information:** **// 🚀 Talk 1:** Raouf Rahiche \| Make Every Minute Count in Your Flutter Pipeline A practical tour of the optimizations that can speed up your Flutter CI significantly; selective native builds, Dart-only snapshots, modular parallelization, test bundling, and smarter coverage collection. *Tags:* **\-\-\-\-** // Raouf's Links Github: [https://github.com/Rahiche](https://github.com/Rahiche) X/Twitter: [https://twitter.com/raoufrahiche](https://twitter.com/raoufrahiche) LinkedIn: [https://www.linkedin.com/in/raoufrahiche/](https://www.linkedin.com/in/raoufrahiche/) **// 🚀 Talk 2:** Matt Meades \| Powering the Tewke smart light switch with Flutter Tewke’s 5 year journey developing a touch screen light switch using Flutter on an embedded device. *Tags:* Flutter, Embedded Linux, Smart home, IoT, Performance Optimisation, Yocto, DBus, Systemd, Flutter-Rust bridge // links: LinkedIn: [https://www.linkedin.com/in/matthew-meades/](https://www.linkedin.com/in/matthew-meades/) BlueSky: X/Twitter: Github: **FlutterLDN:** BlueSky: [https://bsky.app/profile/flutterldn.dev](https://bsky.app/profile/flutterldn.dev) X/Twitter us @FlutterLDN [https://x.com/FlutterLDN](https://x.com/FlutterLDN) Flutter London YouTube channel: [http://bit.ly/2yZLTTb](http://bit.ly/2yZLTTb) See you there! **[George Medve](https://www.linkedin.com/in/georgemedve/)** is Professional Mobile App Consultant and building and scaling teams for success. **[fewandfar](https://www.fewandfar.io/)** is a Tech, Product, Data and Design recruitment company, **[Tom Shannon](https://www.linkedin.com/in/tomshannon1/)** who heads up mobile hiring and will be at the event.

**RSVP TO ATTEND THIS EVENT. ALL TICKETS MUST BE PURCHASED IN ADVANCE TO ATTEND THIS EVENT..** **Welcome to Socialite Connections – Speed Networking for Film, TV, Music, and Media** Join us for an exclusive **Speed Networking for Film, TV, Music and Media**. Connect with creative professionals looking to accelerate their connections and grow their businesses. Imagine meeting and connecting with a room full of like-minded creative professionals in a fun and time efficient manner. **Ticket & Entry: Here is the payment link:** https://fatso.ma/3tTy **We start the event at 6.00pm with a warm welcome.** Speed Networking is a dynamic and efficient way to connect with professionals across various creative industries. Break out of your networking comfort zone and say goodbye to missed opportunities with this structured format. **The Refinery CityPoint** \- Located just around the corner from **Moorgate Station**, it is a stylish and expansive venue in the heart of the City. With its chic interiors, statement furniture, and welcoming atmosphere, **The Refinery** is the perfect location for **local corporate events**, **business breakfasts**, **working lunches**, **client entertainment.** **Event Schedule** **18:00 – 21:00 \| Welcome to the event** where your name will be checked off the guest list, you will be given a name badge and you will be introduced to each other. **19:00 – 20:00 \| Speed Networking Event Starts:** Take part in an exciting speed networking event focused on the film, TV, music, and media industries. This fast-paced environment is designed to help you make valuable connections, exchange ideas, and explore new opportunities in a relaxed environment. **20:00 \- 21:00 \| Network & chill:** It will be a free form event where guests can mingle amongst each other in a relaxed environment, when the speed networking are finished. **Why Attend?** Don't miss this exclusive opportunity to expand your network and forge valuable connections on a 1-2-1 basis. With just 3 minutes per attendee, you'll get the opportunity to speak to everyone attending in a timed and structured format. Are you a filmmaker, musician, media professional, or creative entrepreneur looking to expand your network and accelerate your career? This is your ultimate chance to connect, collaborate, and create magic in just one extraordinary night! **Who Should Attend?** Connect with Film, TV, Music and Media Professionals in a relaxed setting. **Producers, Directors, Artists & Actors, Musicians & Screenwriters, Media Lawyers, Photographers & Videographers, Investors, Anyone interested in Film, Media, TV, and Music Industry.** **Tickets are limited to just 40 attendees.** We like to make sure everyone gets the opportunity to talk to each other. **Ticket & Entry: Here is the payment link:** https://fatso.ma/3tTy You are invited to join the dedicated Whatsapp group for the event and start networking before the actual event. Register now to secure your spot and be part of this transformative networking experience! **Tickets need to be bought online in advance to attend this event. Tickets are not available at the door.** **Refund policy: There is no refund at this event..**

Join us at our next Emacs London meetup held at University College London (UCL) on Tuesday 14 April. 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!

**18-Apr @3pm @Red Lion 🍻 drinks, pub games & 📚 Ealing/ Richmond Photobook Chat (25 spots)** 🍻 Join us for drinks and an easy afternoon of **conversation**, **photography** and **pub games**! A relaxed gathering centred on two new photobooks celebrating the **Borough of Ealing** and the **Richmond Upon Thames**. The event will feature a short presentation of the books, followed by an open Q&A on photography, visual storytelling, and the creative process behind the work. We’ll round off the afternoon with informal drinks and **pub games** 🍻🍻 **ADMISSION FREE; HOWEVER, CAPACITY IS LIMITED TO 25 PEOPLE. PLEASE SIGN-UP TO RESERVE YOUR SEAT!** Copies of both books will be available for purchase at a special event price: *Borough of Ealing — £15 (save £7 off retail) - Richmond Upon Thames — £25 (save £5 off retail) To help manage printing, please mention in the sign‑up comments if you’re interested in purchasing a copy. This ensures enough books are printed ahead of time. 📚 View the books: [Member Profile: Postcards Pictures | Blurb Books UK](https://www.blurb.co.uk/user/postcardspic) **About the Author** *Postcards Pictures *is a West London–based travel and fashion photographer whose work blends documentary clarity with a quiet, poetic sensibility. Favouring natural light, subtle colour, and unforced moments, Postcards Pictures captures the character of a place through its textures, atmospheres, and everyday details. The photobooks focus on the overlooked and the intimate — fragments of urban life, traces of human presence, and landscapes shaped by time — offering a calm, observational way of seeing the world. **Event Details 📚🍻🍻** 📍 Venue: The Red Lion Ealing — Beer Garden (covered area available in case of rain) 📫 Address: 13 St Mary’s Rd, London W5 5RA 🗺 Google Maps: [https://maps.app.goo.gl/9aQVWQJa7XbArwgS6](https://maps.app.goo.gl/9aQVWQJa7XbArwgS6) **How to get there:** *2 stops from Ealing Broadway Station on the 65 bus - 10‑minute walk from Ealing Broadway Station *5‑minute walk from Pitzhanger Manor House

🎉 Come along to the London Scala Talks! 🎉 In this event you'll hear from Haoyi Li, Martin Durchov and Adam Deegan. **Agenda** 6:00pm - 🥤 Doors open. Come along and grab a drink! 6:35pm - 🗣️ Introduction 6:40pm - 🗣️ Haoyi Li: Scripting on the JVM with Scala 7:20pm - 🍕 Intermission: Join us for some free food and drinks! Vegan, vegetarian options are provided. Let us know if you'd like something special - we'd be happy to accommodate. 7:50pm - 🗣️ Martin Durchov: ScalaMeta: Treating Scala code as data 8:10pm - 🗣️ Adam Deegan: Practical Java Interop for Scala Effect Systems 8:30pm - 🥤 Socialising: Grab a drink and let's discuss the talks. 9:00pm - 🍻 Join us in a pub to discuss the talks! 🌐 **This event may have a live stream** Watch this space for more details. **🗣️ Haoyi Li: Scripting on the JVM with Scala** This talk will explore the use of Scala as a scripting language, replacing the Bash and Python scripts common throughout the industry. ⭐ Haoyi Li ⭐ Li Haoyi graduated from MIT with a degree in Computer Science and Engineering, and since then has been a major contributor to the open source community. His projects have over 10,000 stars on Github, and are downloaded over 20,000,000 times a month. Haoyi professionally built distributed backend systems, programming languages, high-performance web applications, and much more. **🗣️ Martin Durchov: ScalaMeta: Treating Scala code as data** Scala source code is usually something we write and hand off to the compiler. But what if we could parse it, inspect it, build it, and transform it all from regular Scala code? ScalaMeta is the metaprogramming library that makes this possible, and it underpins a lot of modern Scala tooling ecosystems: Scalafmt, Scalafix, and Metals are all built on it. In this talk we'll look at what ScalaMeta is, how its AST models Scala programs, and the core operations it provides: parsing, quasiquotes, tree traversal and more. We'll then turn to how we use it at Quantexa, where it powers code generation for our clients. Along the way we'll cover practical patterns that make code generation manageable at scale, and the rough edges you should know about before adopting it yourself. ⭐ Martin Durchov ⭐ I graduated from UCL in 2019 with a MSci in Theoretic Physics and started work in TxOdds, a small company focused on ultra-fast data streaming and processing, where I first encountered Scala, working with Typelevel libraries. Since January 2025 I have been working at Quantexa in the team responsible for data ingestion and processing also relying heavily on the Scala functional libraries and ScalaMeta. **🗣️ Adam Deegan: Practical Java Interop for Scala Effect Systems** Interfacing with a highly autonomous Java library in a functional manner is difficult. In this talk we'll explore the ways in which we've approached this; issues we found along the way; and the trade-offs between purity and pragmatism when there's a runtime which isn't yours to control. ⭐ Adam Deegan ⭐ Adam Deegan graduated from the University of Bristol with a degree in Computer Science in 2021 and has worked at Quantexa ever since. He started off as a Data Engineer and moved into software engineering a couple of years ago, working on the addition of a case management capability. His first true programming love was making Minecraft mods. ———————————————————— 🗣️ Would you like to present, but are not sure how to start? Give a talk with us and you'll receive mentorship from a trained toastmaster! Get in touch through [this form](https://forms.gle/zv5i9eeto1BsnSwe8) and we'll get you started 🏡 Interested in hosting or supporting us? Please get in touch through [this form](https://forms.gle/3SX3Bm6zHqVodBaMA) and we can discuss how you can get involved. 📜 All London Scala User Group events operate under the [Scala Community Code of Conduct](https://www.scala-lang.org/conduct/). We encourage each of you to report the breach of the conduct, either anonymously through [this form](https://forms.gle/9PMMorUWgBnbk1mm6) or by contacting one of our team members. We guarantee privacy and confidentiality, as well as that we will take your report seriously and react quickly.

𝗝𝗼𝗶𝗻 𝗨𝘀 𝗳𝗼𝗿 𝗮 𝗩𝗶𝗯𝗿𝗮𝗻𝘁 𝗘𝘃𝗲𝗻𝗶𝗻𝗴 𝗼𝗳 𝗦𝗮𝗹𝘀𝗮 & 𝗕𝗮𝗰𝗵𝗮𝘁𝗮 𝗶𝗻 𝗦𝗼𝘂𝘁𝗵 𝗟𝗼𝗻𝗱𝗼𝗻! 💃🕺 Get ready to dance the night away every Wednesday with our fun and friendly Salsa & Bachata classes, followed by an exciting party that lasts until late! 🎉 Why You Should Join Our Awesome Classes: \- 𝗕𝗲𝗴𝗶𝗻𝗻𝗲𝗿𝘀 𝗪𝗲𝗹𝗰𝗼𝗺𝗲: No experience? No problem\! 🌟 \- 𝗡𝗼 𝗣𝗮𝗿𝘁𝗻𝗲𝗿 𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗱: Come solo or bring friends\! 🤗 \- 𝗠𝗮𝗸𝗲 𝗡𝗲𝘄 𝗙𝗿𝗶𝗲𝗻𝗱𝘀: Connect with fellow dance enthusiasts\. 👫 \- 𝗛𝗮𝘃𝗲 𝗮 𝗚𝗿𝗲𝗮𝘁 𝗧𝗶𝗺𝗲: Enjoy a lively atmosphere and great music\. 🎶 \- 𝗙𝘂𝗻 & 𝗙𝗿𝗶𝗲𝗻𝗱𝗹𝘆 𝗘𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁: Perfect for all skill levels\. 😊 \- 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝗱 𝗜𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗼𝗿𝘀: Learn from the best in the business\. 👩‍🏫👨‍🏫 \- 𝗖𝗵𝗶𝗹𝗹 𝗩𝗶𝗯𝗲𝘀: Unwind after work in a welcoming space\. 🌈 \-\-\- Class Schedule: \- 7:00 PM: 𝗙𝗥𝗘𝗘 𝗦𝗮𝗹𝘀𝗮 𝗜𝗻𝘁𝗿𝗼 – Perfect for newcomers\! 🎉 \- 7:30 PM \- 8:30 PM: 𝗕𝗮𝗰𝗵𝗮𝘁𝗮 𝗖𝗹𝗮𝘀𝘀𝗲𝘀 – Two levels to choose from\. 💃 \- 8:30 PM \- 9:30 PM: 𝗦𝗮𝗹𝘀𝗮 𝗖𝗹𝗮𝘀𝘀𝗲𝘀 – Three levels available\. 🕺 \- 9:30 PM \- 11:00 PM: 𝗗𝗮𝗻𝗰𝗲 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗲 & 𝗦𝗼𝗰𝗶𝗮𝗹 – Show off your moves and socialize\! 🎊 \-\-\- Location: 𝗔𝗱𝘂𝗹𝗶𝘀 𝗘𝗿𝗶𝘁𝗿𝗲𝗮𝗻 𝗥𝗲𝘀𝘁𝗮𝘂𝗿𝗮𝗻𝘁 44 Brixton Rd, SW9 6BT, London Nearest Underground Station: Oval 🚇 \-\-\- Pricing: \- 1 𝗖𝗹𝗮𝘀𝘀: £13 💷 \- 2 𝗖𝗹𝗮𝘀𝘀𝗲𝘀: £15 💰 \- 𝗗𝗮𝗻𝗰𝗲 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗲 & 𝗦𝗼𝗰𝗶𝗮𝗹: £5 🎟️ \-\-\- Don’t miss out on an unforgettable evening filled with dance, laughter, and new friendships! We can’t wait to see you there! 🎈✨

WEDNESDAYS at Hammersmith Salsa Club, Hammersmith, London Open Every Wednesday Hammersmith Salsa & Bachata Club, 11 Rutland Grove, Hammersmith, W6 9DH (http://www.incognitodance.com/hammersmith-salsa-club-west-london/) 7pm – 11:00 pm Bachata Classes: 7:30pm – 8:20pm (6 levels) Salsa Classes 8:30 -9:20pm (6 levels) No prior bookings are needed, just turn up and dance. Absolute beginners are warmly welcomed. Wear comfortable shoes and light clothes, to keep you dancing comfortably all night £10 Club Only £16 Two Classes + Club Usually has 200+ dancers every week Fun & friendly classes for dancers of all levels. Plenty of social dancing to the latest Latin grooves.

👋 General Info Hey hey London folks, Join us on **April 15** for a React meetup where we’ll dive into modern web tooling and AI-powered developer workflows — from rethinking how we deploy Next.js to exploring new ways of building with Claude Code. Expect practical insights, real-world examples, and great conversations with the community. **To attend the meetup please ➡️➡️➡️ [REGISTER HERE](https://guild.host/events/react-advanced-london-vukgo9) ⬅️⬅️⬅️ via Guild.** **🗣 Call for Proposals** Have an idea or story to share? Submit your talk proposal through our [CFP form](https://forms.gle/rCiQ8Y4jajiC8AHMA) and take the stage at one of our upcoming meetups! **🤝 Organized by** This event made possible thanks to the support from [React Summit](https://reactsummit.com/), [JSNation](https://jsnation.com/) and [React Advanced London ](https://reactadvanced.com/)organizers – [GitNation](https://gitnation.com/). **🤝 Sponsored by** Huge thanks to our friends [Sentry](https://sentry.io/welcome/)! Sentry is the only app monitoring platform built for developers that gets to the root cause for every issue. For software teams, Sentry is essential for monitoring application code quality. From Error tracking to Performance monitoring, developers can see clearer & solve quicker — from frontend to backend. **🤝 Want to support our community?** We’re looking for venue partners and sponsors for future meetups. Let’s discuss collaboration — [contact us](https://forms.gle/zWYxsanfbhV64dEr5)! **🕑 Event Schedule** 18:00 - Doors open - snacks, beer, socialization 18:30 - Opening notes **18:40 - Vinext: Deploy Next.js Without Next.js - [Jan Peer](https://www.linkedin.com/in/jpeer/)** **19:05 - Mystery speaker 🎩** 19:30 - Break **19:45 - Tandem: Collaborative Agent Canvas - [Amman Vedi](https://www.linkedin.com/in/ammanvedi/)** 20:10 - Networking, Open Mic Lightning Talks Mingle until 21:00 pm 🗣️ **Talks** ➡️ **Vinext: Deploy Next.js Without Next.js - [Jan Peer](https://www.linkedin.com/in/jpeer/)** *Next.js is a great framework - until you want to deploy it somewhere that isn't Vercel. vinext is a Vite plugin from Cloudflare that reimplements the Next.js API surface from scratch, so your existing app runs everywhere with a single command. In this talk, we'll look at why this exists, how Cloudflare built it in a week using AI, and how close to "drop-in replacement" it actually gets.* ➡️ **Tandem: Collaborative Agent Canvas - [Amman Vedi](https://www.linkedin.com/in/ammanvedi/)** *Recently I have been building Menagerie a tool for dispatching many Claude Code agents to complete tasks in parallel while maintaining visibility of progress, status and outputs. agents can show you what they are doing to the web app via playwright and ask for help when the need it.* *I think the future of engineering will be based on creating robust agentic systems and amid all the doom and gloom that can exist in the industry these days I want to paint a positive picture of the exciting engineering problems that actually lay ahead of us.* *Along with this I'll describe what it has taken me to deploy a system like this, e.g. sandboxing, cursor compatibility, terminals over the network and also how i've made it fun to use (for example you can give your agent a cute avatar, and if you so choose also a top hat)* — **👍 Code of Conduct** By registering for this event you agree to comply with our [CoC](https://gitnation.com/coc) **📩 Contact** [events@gitnation.org](mailto:events@gitnation.org) [https://twitter.com/ReactAdvanced](https://twitter.com/ReactAdvanced) [http://youtube.com/ReactConferences](http://youtube.com/ReactConferences) [https://bsky.app/profile/reactadvanced.gitnation.org](https://bsky.app/profile/reactadvanced.gitnation.org)

Welcome to our April event. We're delighted to welcome [Alex Le Peltier](https://www.linkedin.com/in/alex-le-peltier/), Chief Technology Officer, Signapse and [Daniel Jones](https://www.linkedin.com/in/danieljoneseb/), Head of Product, re:cinq. **Alex** answers - “what if AI could sign for the entire world - in real time?” From Heathrow flight announcements to Netflix live streams, find out how Signapse is making accessibility possible at scale on AWS. **Daniel** answers - “how do you turn 100 developers AI-native in just a few weeks?” Daniel reveals the psychology, strategy, and surprising human side behind one of the most ambitious agentic coding rollouts in enterprise tech. A big thank you to our sponsors [The Scale Factory](https://rebrand.ly/scalefactory) and [Cloudscaler](https://rebrand.ly/cloudscaler)! **Programme:** 18:00: Arrival, registration 18:15: Talks start 20:00: Networking with food and a drink provided by the generosity of our sponsors. **Talk 1:** ***Real-Time Sign Language in the Cloud: Building Accessibility Infrastructure on AWS with Alex Le Peltier*** Accessibility is too often an afterthought - bolted on at the end, limited by budget, or simply impossible without a human interpreter in the room. Signapse is changing that. In this talk, Alex Le Peltier, CTO of Signapse, will show how a proprietary GenAI model hosted entirely on AWS is delivering real-time AI sign language at mass-market scale - from live flight announcements at Heathrow to Netflix live streams. By combining AWS infrastructure with custom and public LLMs, Signapse has built a platform that fills the critical gap where interpreters can't be present, freeing up scarce interpreter resources for where they matter most. **Alex** is a serial startup-er and tech leader with over 13 years of experience in both the public and private sectors. He’s passionate about understanding what challenges are faced by the deaf community and building innovative solutions that make a difference in people's lives. **Talk 2:** ***Agentic Coding For 100 Developers with Daniel Jones.*** How has a $3b Stockholm SaaS company transitioned 100 developers to AI-native development over a few weeks? Daniel shares how he helped Odevo with exactly this, but the answer might be more than you expect - it involves just as much discovery and psychology as it does training. Learn about the social and business prerequisites for such a transformation, the syllabus that enables developers to use multi-agent workflows, and how 'one-and-done' training is insufficient for this type of behavioural change. **Daniel** is Head of Product at re:cinq, an AI-native transformation consultancy, and a CTO Craft 100 member. He founded cloud consultancy EngineerBetter, spent six years helping banks, government and defence organisations deliver software faster, then scaled and sold the business. Now he focuses on agentic coding, AI-native engineering, and software factories - with a practical, engineer-first perspective: fix your path to production before you let agents anywhere near it. **Do you have a story to share?** If you are interested in speaking at one of our events, please check out our [call for papers here](https://awsuguk.org/call-for-papers/). We are advocates for greater inclusion & diversity in UK Tech and are especially keen to receive talk submissions from people in underrepresented groups. If you are interested in speaking at a future meetup but would like to discuss what to expect or need assistance, please contact our Inclusion & Diversity Lead Natalie Gray - graynataliej@gmail.com or DM her [@natjgray](https://twitter.com/natjgray) Check out our [website](https://awsuguk.org/) for more information about our community. Remember to follow us [@AWSUserGroupUK](https://twitter.com/AWSUserGroupUK) and on [LinkedIn](https://www.linkedin.com/company/aws-ug-uk) for the latest updates, and you can find videos of our past meetups [here.](https://awsuguk.org/our-videos/)

Hi UmbLondoners, We're having a post Spark social to catch up on everything Spark and to look ahead to Codegarden. If you've never been to one of these types of meetups before, our 'social' events are relaxed, informal evenings. We meet in a designated pub and talk Umbraco, .NET, community activities and more. People are responsible for paying for their own drinks and food (if wanted). We just promise to provide a friendly welcome! We've chosen The Old Thameside Inn Pickfords Wharf Clink St SE1 9DG Please sign up if you think you'll be joining the fun so that we can ensure that we have booked a space big enough for us! Hope to see you all there!

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

Do you feel introverted when you are in a group setting? Are you shy? Do other people have more fun than you do? There are simple life hacks you can use to improve your connection to others and improve your social life. Talking is one thing. Truly connecting is altogether another. It's the whole experience of connecting with people and forming relationships. It includes the joy, understanding, and love formed among people. * In our meetings, you will learn: * A simple life hack to increase your liking and tolerance of other people, or even of yourself! * How to become more interested and enjoy conversations with people. * How to be comfortable in social settings. * How to be yourself * How to become more extroverted and, * How to make connections with people. Feeling lonely, isolated, or bored? This local meeting is exactly what you need! Come join us! Be sure to click on the red "Attend" button below to come to the local event. We look forward to seeing you there. This group is created by 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** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

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.

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/

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.

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!