CoffeeScript

June Edition ✨✨! We will be at the MongoDB London office! Django London Meetup is a monthly meeting to discuss Django, Python, the web, and related topics. The meetups are open to all with an interest in building websites with Django. (in-person only event, no streaming) **Talks:** **AI Agents Need Memory Too: Building Systems That Remember What Matters — Abigail Afi Gbadago** AI agents are only as good as what they can remember, but deciding what to store, where to persist it, and how to retrieve it at the right moment is harder than it sounds. This talk walks through a practical framework for architecting memory systems for agentic applications, covering memory types, storage patterns, retrieval strategies using vector search, and managing the full memory lifecycle in production. Afi is a Senior Software Engineer and Developer Advocate (MongoDB). She serves as Vice President of the Django Software Foundation, a Fellow of the Python Software Foundation, and is a Microsoft MVP for Python and Web. Afi is passionate about building great software and stronger tech communities. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Replay Failed Python Runs: Reverse Debugging When Logs Aren’t Enough** **\- Nathan Matthews** Reproducing Python failures from a traceback alone is often impossible once the request is gone or the environment has changed. This talk introduces Retrace, an open-source reverse debugger that lets you record, replay, and step backwards through a failing run, giving both developers and AI agents concrete evidence for debugging. Nathan Matthews is Co-founder and CTO of Retrace Software. He has spent his career building complex Python and distributed systems across fintech, developer tools, and data platforms, including roles at 10x Future Technologies, Digital Asset, Elsevier, and Droit. At Retrace, Nathan leads the technical work behind deterministic replay and reverse debugging for CPython. **Want to share your Django or Python knowledge?** We’d love to feature your talk! Just fill out our [Speaker form](https://tinyurl.com/django-london-speaker-form) to propose a talk! **Agenda:** • 6:15pm Doors open, socialising • 6:30pm Food and drinks offered by our sponsor • 7:00pm Doors close • 7:15pm Introduction, Talks • 8:30pm Socialising • 9:30pm Fin **Please make sure to arrive between 6:15 PM and 6:55 PM**. If you arrive earlier than 6:15 PM or later than 6:55 PM, you can take a seat in the seating area located in the downstairs reception. **Please note that we cannot accommodate arrivals after 7:15 PM.** Our meetups are governed by a [Code of Conduct](https://www.djangolondon.com/code-of-conduct/). Please take a few minutes to read it. This meetup is sponsored by: • [MongoDB](https://www.mongodb.com/): “MongoDB is a database for dynamic, demanding software.” • [Kraken Tech (Octopus Energy Group)](Octopus%20Energy%20Group): "Kraken is a revolutionary energy tech platform built with predominantly Python & Django. We serve 54 million households worldwide and have 38GW of contracted capacity." • [JetBrains](https://www.jetbrains.com/): "We make professional software development a more productive and enjoyable experience." Website: [https://djangolondon.com](https://djangolondon.com/) BlueSky: [https://bsky.app/profile/djangolondon.com](https://bsky.app/profile/djangolondon.com) Github: [github.com/djangolondon](https://github.com/djangolondon/) Open Collective: [opencollective.com/the-london-django-meetup-group](https://opencollective.com/the-london-django-meetup-group/)

Hi all (Please note the session price is now £12) We are a small, competitive but friendly badminton club who are playing at Swiss cottage leisure centre in London on Tuesdays. We are opening up a few spots each week for advanced players only to attend our members club night session with a view hopefully to joining the club permanently. Any known members of other clubs that have no intention of joining the club who sign up will not be allowed to attend. We play on 4 courts at Swiss cottage leisure centre from 8-10pm. We play with feather shuttles and charge £12 per session. Please transfer your guest fee to our club account prior to attending and send an email to us at info@crescentbadminton.co.uk and pay it to the details below: The Crescent Badminton Club Sort Code: 40-05-33 Account Number: 11372297 We normally go to the pub after each session for a well-deserved beer! For any more information please contact info@crescentbadminton.co.uk or visit our Facebook page https://www.facebook.com/CrescentBadmintonClub Please note that we do not accept any responsibility for personal injury, stolen or damaged property or any other damage occurred in our club sessions. Late Cancellations Penalty: Cancel after 30 hours before the event, ie 2pm on Monday. £6 fee will be added on the next visit. No Show Fees: Full fee £12 will be added to the profile on the next visit.

We're back with our third event of the year and we couldn't be more excited. We'll stick to our usual format of 2 speakers and a fireside chat (with a twist this time). If you've not been to one of our events before then here is what you can expect. CRAP (Conversion Rate Optimisation, Analytics, Product) Talks is a cross-discipline event. We don't work in silos so why network and learn in silos. In the past we've had speakers from Data, Analytics, CRO, Product, Marketing, Data Science, Design and Research and so many more. If you work in tech, chances are you work cross-functionally, so come along and meet people doing amazing things in tech. **Hosts:** RVU - https://www.rvu.co.uk/ **Venue:** RVU The Cooperage, 5 Copper Row, London SE1 2LH **Date:** 09/06/2026 6pm doors open Talks kick off at 630 Wrap up approximately 9:00pm. **Speakers:** * **[Aya Gaballa](https://www.linkedin.com/in/aya-gab/)** \- "Building Products for Different Cultures" * Co-Founder & Product Lead, Kham Lab * **[Mark Palfreeman](https://www.linkedin.com/in/mark-palfreeman-662044160/)** \- "Gambling with Success: The Complexities Around Measurement in an Industry with Stellar Growth"\. * Senior Business Intelligence Manager, Flutter UKI **Fireside Chat:** * **[Alex Homan](https://www.linkedin.com/in/alexander-homan-3aab2a141/)** \- "Analytics in the age of AI" * Lead Data Analyst, Huel

☕ Little coffee catch-up - Tuesday 9th June, 2pm at GAIL'S Victoria! I'm in London right now and thought - why not make the most of it? I'm inviting you for a spontaneous little gathering over coffee. No agenda, no pressure. Just a relaxed chat about the real stuff - the struggles of building a business, navigating life, and everything in between. Come as you are. You might leave with a new friend, a fresh idea, or even a collaboration brewing. ✨ **Tuesday** 9th June **2:00pm GAIL's Bakery**, London Victoria Free to attend - just show up and pay for your own drinks/food. Drop a comment or RSVP so I know to look out for you 💛

​Join **AI Signals** and **LangChain Community London** for an evening of technical talks, practical insights, networking, and community conversations around the future of AI applications. ​This meetup brings together developers, founders, researchers, students, product teams, and AI builders to explore how modern AI systems are being designed, deployed, and scaled in the real world. ​The evening will focus on **AI agents, RAG pipelines, LangChain, production-ready AI workflows, storytelling in AI, and practical lessons from people actively building with emerging technologies**. *** ## ​Schedule ​6:00 PM — Doors open, pizza, drinks, and networking ​6:30 PM — Welcome ​6:35 PM — [Anshul Yadav](https://www.linkedin.com/in/anshulyadav1976/?utm_source=luma): AI Engineer @ Li & Fung The Agent Is Not the Product: The Harness Is ​7:00 PM — Break ​7:15 PM — [Bilge Aksu](https://www.linkedin.com/in/bilge-aksu-90595837/?utm_source=luma): ML Engineering Manager @ Cleo ​7:40 PM — Lightning Talk 1: [Abd Bastola](https://www.linkedin.com/in/abda-bastola-b0447b13a/?utm_source=luma): Senior Software Engineer @ AWTG ​Why Most AI Agents Never Reach Production ​7:47 PM — Lightning Talk 2: [Sofía Sánchez-Zárate](https://www.linkedin.com/in/sof%C3%ADa-s%C3%A1nchez-z%C3%A1rate-91493381/?utm_source=luma): Head of Technical Ecosystem @ CopilotKit ​AG-UI & The Generative UI Spectrum ​7:54 PM — AI Signals Wrap-Up ​8:00 PM — LangChain Final Remarks ​8:10 PM – 9:00 PM — Wrap-Up, Networking and drinks at [Angel London](https://g.co/kgs/3FVpa2i?utm_source=luma) *** ## ​What to Expect ​The evening will feature technical and practical discussions around: * ​Building reliable AI agents and intelligent workflows * ​RAG pipelines for real-world applications * ​Moving AI prototypes into production * ​Storytelling, design, and user experience in AI products * ​Lessons from AI builders, engineers, product leaders, and community speakers ​Whether you are experimenting with AI agents, deploying RAG systems, exploring LangChain, or simply curious about where AI development is heading, this meetup is designed to help you learn, connect, and contribute. *** ## ​Who Should Attend ​This event is ideal for: * ​Software engineers * ​AI and ML practitioners * ​Product managers * ​Founders and startup teams * ​Researchers and students * ​Designers working with AI products * ​Anyone interested in building practical AI applications ​You’ll gain insight into the tools, architectures, and workflows behind the next generation of intelligent applications, while connecting with the growing London AI and LangChain community. *** ## ​Important Information ​Please note that attendees will not be able to enter the venue before **6:00 PM**. ​RSVPs will close **24 hours before the event**. You may be unable to register after this time, but remote viewing will be available via our YouTube channel. ​Our hosts may require a list of all attendees. Please register using a name that matches your **government-issued ID or bank card**. If your registered name does not match your ID, we cannot guarantee entry to the building. ​If you can no longer attend in person, please un-RSVP so your space can be made available to someone else. *** ## ​About AI Signals ​**AI Signals** is a community focused on exploring the latest developments in artificial intelligence, emerging technologies, and practical AI adoption. It brings together builders, learners, and professionals interested in understanding how AI is shaping the future of work, business, and society. *** ## ​About LangChain Community London ​**LangChain Community London** brings together developers, AI engineers, researchers, and technology enthusiasts interested in building applications powered by large language models, agents, retrieval-augmented generation, and production AI systems. *** ​A huge thank you to our speakers, sponsors, hosts, volunteers, and community members for making this event possible. ​**Secure your place and join us for an evening of learning, collaboration, and AI community energy in London.**

Come on down and get fit make Some friends and train with an Olympian… yes I will give you guys an amazing boxercise before we than head to a local coffee shop to connect It’s £15 for the boxercise class than we will walk over to the grab some Coffee!

We are back! This is going to be a monthly IN PERSON meet up in London. A very big thank you goes to Accurx who is hosting us in their amazing Shoreditch offices. This will include access to facilities including coffee! 😻☕️ **Want to know more? 👇** As with all CoffeeOps, this is an interactive, chatty, build your own adventure type of meet-up. Instead of booking in experts to *learn* *from*, we gather a group of practitioners to ***learn*** ***with***. We have been running for over 4 years now and often get feedback that this is the most useful meetup people join! The event is approximately 90 minutes and always starts by brainstorming topics to discuss. The group then votes on the most relevant/interesting to them and we then cycle through the topics trying to discuss each deeply, but in a time bound slot. To get an idea of topics, you can check out our remote board [here](https://easyretro.io/publicboard/h404NF84Uje4tCcxpJdHr4Ycs9B3/a4a35d2b-181b-409b-832e-a729be1af79c). The general gist is anything is fair game, though we tend to revolve around software delivery and definitely lean towards the more Ops-y or DevOps-y side of things.

🎉 Come along to the London Scala Talks for a deep dive into functional architecture! 🎉 In this event you'll hear from David Lebl and Przemysław Pokrywka. **Agenda** 6:00pm - 🥤 Doors open. Come along and grab a drink! 6:35pm - 🗣️ Introduction 6:40pm - 🗣️ Przemysław Pokrywka: Ports and Adapters for People on Tight Schedules 7:20pm - 🍕 Intermission: Join us for some free food and drinks! Vegan and vegetarian options are provided. Let us know if you'd like something special - we'd be happy to accommodate. 7:50pm - 🗣️ David Lebl: Complexity is a Sin, But Hexagons Forgive 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 will not have a live stream** We hope to see you there in person. **🗣️ Przemysław Pokrywka: Ports and Adapters for People on Tight Schedules** Focus on software architecture is not always associated with pragmatism in common perception. Terms such as architecture astronautics and the ivory tower stereotype highlight the perceived disconnect between many architects and the realities of day-to-day code maintenance. Too often, architectural patterns are applied with insufficient understanding, leading to cargo-cult adoption and increased waste in the software development process. When applied in the right context, however, certain architectural approaches can be powerful enablers. In this talk, I would like to share the story of a serverless application in which elements of the Ports and Adapters architecture made a tangible, positive difference. ⭐ Przemysław Pokrywka ⭐ Husband, dad, grandad, software engineer. Functional Scala enthusiast with imperative OOP Java background. Fan of the command line. **🗣️ David Lebl: Complexity is a Sin, But Hexagons Forgive** A visual journey from spaghetti to sanity. This talk traces how cognitive load accumulates in unconstrained codebases, how domain-driven design and bounded contexts restore order, and how hexagonal architecture provides a practical, forgiving structure for real-world systems — all laid out on a single zoomable canvas where every example links back to the bigger picture. ⭐ David Lebl ⭐ David is a software developer with a CS background and 5 years of Scala and FP experience. He leads a small team, occasionally survives his own accidental complexity, and is here to share what he learned the hard way. ———————————————————— 🗣️ 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.

Unless otherwise announced this is an in-person social gathering for Smalltalkers to get together and talk about Smalltalk (the Programming Language!). Everyone is welcome from the grizzled and experienced to the merely curious.

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **Join the London Coffee Club and make new friends!** Each meetup brings together 4–6 people for casual conversations over coffee. We use the Groupvibe platform to facilitate the meetup and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com/](https://groupvibe.com/) We’ll share the exact location of the upcoming meetup the night before only if you have bought a ticket or membership plan. **Why this works:** \* Smaller groups make real conversations easier \* Matching helps avoid awkward dynamics **Note:** RSVPs on Meetup don’t reflect total attendance. Many attendees register directly via our website. The event on [Meetup.com](http://meetup.com/) is only a placeholder. This meetup is organized by Groupvibe, a small team passionate about helping people form meaningful friendships offline.

# Learn how to use open-source harnesses like OpenCode & Pi w/ your own LLM and with it, build a real-world application **Registration to this event is only valid through the Luma platform:** [https://luma.com/11txn8gq](https://luma.com/11txn8gq?utm_source=meetup-dot-com) ​Hello code campers! ​Since everyone is talking about using harnesses such as **Anthropic Claude** or **OpenAI Codex**, meaning, everyone is probably tired of hearing about them, we've decided to go in a different direction and explore other, lesser known things such as, [OpenCode](https://opencode.ai/?utm_source=luma) and [Pi DOT Dev](https://pi.dev/?utm_source=luma). Come and join us and learn how to work with a wide range of open-source large language models (**LLMs**) such as **DeepSeek V4**, **Gemma**, **Kimi K2**, and **GLM** across various local-first environments. This comprehensive workshop is designed to teach you what is a code harness, how many types of them there are out there (you might be familiar with **Claude Code** or **Codex** or **CoPilot** but there are others and since the big-tech companies are moving to token-based usage, why not run your own solution locally). Also, we'll explore how to go about having effective agentic coding workflows while benchmarking model performance and hardware requirements. ​We will go through the setup process, focusing on how to install the desired LLM runner like Ollama or LMstudio locally. ​This will be our **7th** 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. ​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 most likely accompanied by a guest speaker (TBD). *** ## ​Prerequisite ​Prerequisite: a local Ollama, LMStudio installation or equivalent (but if you don't have any of that, don't worry, come a bit early and we will help you). ​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/](%E2%80%8Bhttps://andysign.github.io/ai-london-01/) (Ollama); [​https://andysign.github.io/ai-london-02/](%E2%80%8Bhttps://andysign.github.io/ai-london-02/) (LangFlow, not really related but still) [​https://andysign.github.io/ai-london-03/](%E2%80%8Bhttps://andysign.github.io/ai-london-03/) (private RAG w/ Anything LLM) [​https://andysign.github.io/ai-london-04/](%E2%80%8Bhttps://andysign.github.io/ai-london-04/) (AI-native browsers) [​https://andysign.github.io/ai-london-05/](%E2%80%8Bhttps://andysign.github.io/ai-london-05/) (OpenClaw basics) [​https://andysign.github.io/ai-london-06/](%E2%80%8Bhttps://andysign.github.io/ai-london-06/) (OpenClaw advanced) *** ## ​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** 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). ​**20:30 - 20:45 Guest Speaker** ​**20:30 - 21:00 Networking** ​**21:00 - Closing remarks and follow-up** ​ **END:** Carry on the fun at a nearby pub around 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.

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!

Early-bird coffee and conversation at [Crimson Cup Coffee Shop - Clintonville](https://www.crimsoncup.com/about/location/clintonville)!

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

We’re still working to get more people into these Meetups, but our goal is to give PlayYourCourt members a few social tennis outings each week in addition to your practice sessions and Challenge League matches. These Meetups are co-ed, super laid back, and all skill levels are welcome. Post your skill level and a suggested court in the comments section so we can round up as many players as we can for some tennis fun! Also, if you’re looking to meet new practice partners or play some matches and you aren’t already in the PlayYourCourt Community, you can go here to see what we’re all about and sign up: https://www.playyourcourt.com/tennis-community/columbus-oh/meetup/ If you love tennis, we’d love to have you! Be sure and watch the quick video that explains how everything works. Happy hitting! - Scott

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

**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** *Customize the IDE: Building Extensions for Visual Studio Code* Visual Studio Code is one of the most widely used development environments today, and much of its flexibility comes from its extension ecosystem. Extensions allow developers to customize the editor with new features, integrations, and workflow improvements tailored to their needs. In this session, we’ll cover what extensions are and the different types available, including full extensions written in TypeScript or JavaScript, along with lighter-weight extensions such as color themes, language packs, language support, code snippets, and keymaps. We’ll also look at practical reasons a developer might create an extension, from automating repetitive tasks to adding custom tooling. The session includes a hands-on walkthrough of creating a new extension, testing it locally, and understanding the basic project structure. We’ll close with a brief overview of how extensions are packaged and published to the Visual Studio Marketplace and other distribution options. **YouTube Link** TBD

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).