Lisp

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/)

17:15-18:00 Doors open / Registration 17:30-18:30 Free English Classes in small groups 18:30-19:15 Meal for £3.5 / Meet new people www.freeenglishclasses.org

​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 : AI Engineer @ Li & Fung The Agent Is Not the Product: The Harness Is ​**7:00 PM** — Break ​**7:15 PM** — TBD ​​**7:45 PM** — **Lightning Talks: TBD** ​**8:00 PM** — Community networking and closing remarks **9:00 PM** — ​Wrap-up, 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.**

Join us for a fun and engaging morning filled with conversations and connections with international friends at the English Conversation Café in Chelsea. DOORS OPEN FROM 9:30AM A chance to meet new people, share stories and practice your English in a relaxed and welcoming environment. There will be a different topic every week for us to focus our conversations on. Every Tuesday morning - term time only. Food and drink provided, free of charge! No need to bring anything, just yourself!

Come and join us every week day from 12.45pm - 2.45pm. Classes for levels elementary to upper-intermediate (A1+ - B2+) Improve your fluency, listening and reading comprehension, grammar and vocabulary with our friendly classes. No payment needed - the classes are **completely free** because the teachers are training with a University of Cambridge accredited program. Join us at 24 Great Chapel St, London, W1F 8FS Take the level test in advance for more information about classes for your level (link to the level test: https://forms.gle/mn3hqUgo3BRLyAUi7) and wait for up to one business day for more information. OR Come 15 minutes early on your first day to do a quick speaking test and find your classroom. See you soon!

🎉 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.

Improve your Spanish/English with a bunch of friendly people over a pint! ¡Puedes mejorar tù Español/Ingles con un grupo de personas amables con una bebida!

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.

# 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.

2nd Sunday of every month, join us for a relaxed and fun language exchange, where meaningful conversations flow as freely as delicious coffee and tea! This isn't just practice; it's **accelerated progress** in a supportive setting, designed to quickly boost your **Mandarin, Cantonese and English** skills. **How We Make It Effective & Enjoyable:** * **Perfect Groupings:** We carefully match you with native speakers and learners at a similar level, ensuring comfortable and productive conversation practice. * **Forget awkward silences!** We provide fun, engaging discussion topics to spark lively chats and keep the conversation flowing. * **Maximise Your Practice:** Rotate between groups if you wish to connect with more people and strengthen your conversation skills! * **Expert Support:** Our experienced tutor is always on hand to help. 👌 **All levels welcome!** Native speakers and learners alike. 💛 Please support the cafe by buying a drink or snack while you are here - they've kindly let us use the space. We can't wait to welcome you! \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Take your Mandarin beyond the exchange.** 🤝 If you’re looking for a bit more structure to go along with your conversation practice, let’s chat! We're offering **complimentary 1-on-1 advice sessions** to help you find the perfect learning path. Get a professional assessment of your level so you can study with confidence. **No commitment** required. [Book your Free Session](https://eu.bigin.online/org20070515371/bookings/course-advice) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **China Unbound** is the best place to learn practical Chinese for adults. While most schools prioritise grammar and writing, China Unbound empowers you to confidently communicate in Chinese in real-world situations. Join us and discover a fun, fast, and personalised way to master Chinese! \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **🤘 FAQs:** **I'm learning Chinese, are the sessions suitable for beginners?** Yes! Come and speak as much or as little as you like, or just come and listen! There is no pressure! **Are there any discounts for Chinese lessons for members?** Yes, you can use code MEETUP10 for your exclusive £10 discount on our [Chinese courses](https://china-unbound.co.uk/personal/) site-wide! \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 每个月的第二个星期天，来加入我们，享受一场轻松又有趣的语言交流体验！在茶香与咖啡的陪伴下，开启一场自然流畅、充满收获的双语对话。 这不仅仅是练习，而是一种更快提升你英语水平的高效方式。我们为你打造一个轻松友好、真正有用的语言环境，让你的口语交流能力飞速进步！ **我们如何让语言交换高效又好玩：** * **精准匹配，聊天不尴尬**：我们用心将你和母语者或相近水平的学习者配对，确保每一次对话都轻松自在又高效实用。 * **话题有趣，轻松破冰**：拒绝冷场！我们提前准备了有趣又实用的聊天话题，让你一开口就停不下来，交流自然顺畅。 * **灵活轮换，提升更全面**：想多练一点？欢迎自由选择是否换组，认识更多人、接触不同语言风格，快速提升真实沟通能力。 * **专业老师现场支持**：我们的资深语言导师会在现场提供实时帮助，确保你在交流中不断进步、有信心开口！ **活动详情：** 🗓️ **时间**：每月第二个星期日 ⏰ **时段**：下午 2:30 - 4:30 💰 **费用**：免费参加 不只是练语言，这里还有文化的碰撞、朋友的陪伴和成长的喜悦。现在就来加入我们，开启你的高效交流之旅吧！ **🤘 常见问题解答：** **我最后会不会一直说中文而一无所获？** -不会，因为我们的“快速聊天”模式鼓励大家用中/英文交换来交流。 **会员有折扣吗？** 有，欢迎你跟你学中文的朋友分享代码**Meetup10**，他们会获得10镑的独家折扣！

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

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.

**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 will have our certified mediums available and you can receive 3 10-minute readings for $20. To keep you safe, we will be following all CDC and Health Dept. guidelines at our psychic fair today. Sitters and readers required to wear a mask. We will maintain a minimum of 6 foot physical distance during readings. Please, if you can, bring your own portable chair to use during your readings. Please note that we are at our wonderful new home at Unity of Columbus, 4211 Maize Road, Columbus, OH

We've moved to guild.host Look for us there. https://guild.host/events/buckeye-cocoaheads-nscoders-tcbrk5

Let's grab some coffee/food and share a morning chat! The East Market has an ample parking lot and outdoor and indoor seating. Grab a cup of coffee from Winston's Coffee & Waffles or on your way to East Market and meet us on the second floor - table behind or east of the elevator. Per what this group is about: "Everyone is welcome! International transplants to Columbus who want to improve language skills, Columbus residents who enjoy talking to people from other countries, and those who would like to discuss international travel and culture, and who enjoy getting together for good conversations."

**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