OCaml Programming

On 23 June we will be gathering at the Star of Kings for some Postgres and a pint. This time we'll have a talk by **Andreas Karlsson** from Percona on **Stopping Collations Going Wrong**, followed by a brief recap from **Alastair Turner** (Percona) and **Valeria Kaplan** (Data Egret) on **this year's PGConf.DEV**, where the PostgreSQL community celebrated its 30th birthday. This event is generously sponsored by [Nexteam](https://nexteam.co.uk/), a London-based consultancy specialising in PostgreSQL-based solutions, database support, and bespoke software development. We are a very informal bunch, so hoping to see you and your colleagues there! We do need to know the numbers, so please register if you are planning on coming. WHERE The Star of Kings **on 23, June from 18:30.** PROGRAMME 18:30 Welcome 19:00 **Stopping Collations Going Wrong** (Andreas Karlsson, Percona) - More below! 19:45 Food and bar snacks 20:00 **Celebrating 30 Years of Postgres at PGConf.DEV** (Alastair Turner, Percona & Valeria Kaplan, Data Egret) 20:30 It's a pub, so we'll stay and hang out a bit longer — but feel free to leave whenever you prefer! About The Talk **Stopping Collations Going Wrong** Outside of causing trouble for you when upgrading libc what are collations good for? PostgreSQL's collations have gotten a lot of bad press from the upgrade issues but they are also a powerful and important tool, especially for working with text in other languages than English. This talk will give an introduction to collations in PostgreSQL, including how to use them, what they are useful for, how they work plus some common pitfalls and misunderstandings. You will learn, among other things, about the three collation providers (libc, icu, builtin), BCP 47, case insensitive collations, CTYPEs, what new features have been introduced in recent PostgreSQL versions and get a brief look into the future of collations in PostgreSQL. About The Speaker **Andreas Karlsson** is application developer and long time minor contributor to PostgreSQL who recently has started working with PostgreSQL full time. Right now working for Percona with PostgreSQL itself and extensions, including pg_tde. \*\*\* 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.

*Please ensure that you have READ THE SUBMISSIONS before attending the session. Contact Graig in advance for the submissions document and the exact location in NEW CROSS.* This session will focus on FEEDBACK for members' writing. We ask that people attend two meetings before submitting their own work. Read, read, read- and be ready to give thoughtful and detailed feedback at our meeting! We aim to finish at 10 each session, but several of us will often continue to socialise with a drink or two.

Vibe Coding Collective is a global community helping anyone turn ideas into working software with AI. We host relaxed social coding jams in bars, cafés, and maker spaces. Whether you're a developer or have never written a line of code, you'll fit right in! ​On June 23, we're teaming up with [Momen](https://momen.app/?utm_source=luma) for a special edition about building full-stack with vibes. It is the visual backend, that seamlessly turns front-end "vibes" from tools like Cursor or Lovable into scalable databases, AI workflows, and secure, production-ready architectures. ## ​Format 🛠️ ​We team up in small groups of 3-4. ​You'll start by designing and laying out your app by hand, dragging and dropping the screens, deciding how it should look and feel. Then you go from there to vibe-coded backends, including databases, workflows, AI agents, and logins. By the end you've gone from a blank canvas to a real, working app with a brain behind it. ​The goal is to vibe, and learn from each other. ## ​New to vibe coding? ✨ ​No worries. We provide simple starter ideas and example prompts so even total beginners can dive straight in without stress. ## ​Schedule 🕒 ​19:00 — Welcome 19:05 — Intro from the Momen team 19:15 — Live workshop: Building a challenge app with Momen 19:45 — Challenge briefing & team formation 20:00 — Build time 21:00 — Optional demos (show what you made!) 21:30 — Hang out, network, make friends ## ​Who is it for? ​Anyone! Curious coders, tinkerers, designers, founders, AI-curious folks, and developers. If you've ever wanted to take an idea all the way to a real, full-stack app without writing code, you belong here. ## ​What to bring ​- Laptop 💻 \- Vibes ⚡ ## ​Location 📍 ​Brewhouse and Kitchen Highbury 2A Corsica St, N5 1JJ, London ## ​About Vibe Coding Collective ​We're an international community of 3,500+ members across 9 countries, running relaxed social coding jams where everyone leaves with something they built. ​🌟 No pressure, no gatekeeping. Just good people, fun ideas, and some fast-paced collaborative building. ​Spots are limited and our events fill up fast, so RSVP early! ​#AI #vibecoding #AItech #LondonAI #social #fun #socialdrinking

*This event is supported by [languagecalendars.com](https://www.languagecalendars.com/)* Get **£5 off** their language calendars, posters & tees 👉 use code **HOLA5** or click this link: [https://www.languagecalendars.com/discount/HOLA5](https://www.languagecalendars.com/discount/HOLA5) **🌍 Connecting locals and internationals in London 🌍** Join us every Tuesday evening in Holborn for the London Language Exchange, where over 60 people gather each week to practice new languages, share cultures, and make new friends. See pics of our previous events on our [Instagram](https://www.instagram.com/babblelondon), and chat to other members who are coming via our [whatsapp group](https://languagexchanges.com/whatsapp/). **🙋 Who is this for?** All languages and levels are welcome, and we are inclusive of all ages, races, religions etc. Whether you're a polyglot, a beginner just starting with Duolingo Spanish, or you just want to come and socialise, you will be welcomed to our community of language learners and international friends. **🙌 What to Expect:** * **Language Practice:** Whether you’re fluent in Spanish, Italian, English, Arabic, Russian, Mandarin, or any other language, our hosts will help you connect with people who match your language interests. * **Friendly Hosts:** Our hosts will greet you at the entrance, give you a label where you can write the language(s) you speak and the ones you’d like to learn or practice. * **Inclusive Atmosphere:** We welcome all languages and levels, and make sure everyone feels comfortable—especially if you're coming alone! It’s a relaxed environment perfect for making new friends and practising languages at your own pace. * **Socialising:** Coming alone or with friends, this is a great opportunity to meet new people in the city. Unlike some other meetup ‘groups’, we do not fill our events with fake members, and you can check how many people attend each week via our [Instagram](https://www.instagram.com/babblelondon). **👋 How does it work?** * **Arrive!** No need to register, just come to our event any time between 7-9pm and our event host will welcome you. They will have an orange lanyard and will be sitting next to our sign. * **Write your ‘Language Label’.** Here you can write your name, the languages you are learning, and the languages you can help others with. * **Pay.** Our £1 event fee pays for our lovely event hosts and keeps the event going. Card only please. * **Get talking!** With the help of our host you will be able to find other people attending the event with compatible language interests - we are all very friendly and the majority of our attendees come alone, so there’s no need to worry about getting involved! **📌 Where are we?** We’re normally located in the downstairs room of The Penderel's Oak Pub, 283-288 High Holborn, London WC1V 7HP [https://g.co/kgs/57H1Wbr](https://g.co/kgs/57H1Wbr) However, always check the location on this meetup event and in our [WhatsApp Group](https://languagexchanges.com/whatsapp) just in case there is a change. **💡 Important Info:** Please disregard the attendee numbers shown on Meetup or Facebook. Because we meet at the same time and place every week, many regulars do not sign up beforehand, but we always have a great turnout, often exceeding 70 people. We also have many more participants who join through other platforms. **🔗 Connect With Us:** Stay updated by joining our WhatsApp and Facebook groups or following us on Instagram. You’ll get event updates and stay connected with the community! [https://linktr.ee/londonlanguageexchange](https://linktr.ee/londonlanguageexchange) **FAQ:** **Who is this for?** Anyone interested in languages, from complete beginners to fluent speakers! We welcome all levels and languages. **Do I need to sign up?** You don’t need to sign up, but feel free to join our WhatsApp group for updates and announcements. **Can I come alone?** Absolutely! Many people come solo, and it’s a great way to meet new friends in a relaxed environment. **How does the event work?** When you arrive, you’ll get a sticker to write your native language and the one(s) you’d like to practice. Our hosts will help you find people to chat with based on your preferences. **What if I don’t speak multiple languages?** No problem! Whether you’re fluent or just starting out with a new language, everyone is welcome. **More Questions?** Check out our [full FAQ here](https://languagexchanges.com/what-is-a-language-exchange/) **💛 WHAT THEY SAY** **🗣** “It's so great that people are very friendly and nice here. I practised my English speaking and listening.” - Gerome 🗣 “The language exchange events are a really great way not just to practise languages but also to meet new people in your area. I’ve made many local friends since I moved to the area” - Monika 🗣 “Everything was perfect. The host was so friendly and wonderful!” - Mojtaba 🗣 "It was a lovely language exchange, with lovely people. I practised so much German!" - Sara **About Languagexchanges:** We started in Leeds back in 2014 with the desire to provide a welcoming space that brings people together from all different walks of life, with a shared love of learning languages and culture. We now have communities across the UK including Birmingham, Bristol, Edinburgh, Glasgow, Leeds, London, Liverpool, Manchester, Newcastle, Sheffield and York - [see all our locations.](https://languagexchanges.com/product-category/events/) 👔 Interested in working with us? [https://languagexchanges.com/work-with-us/](https://languagexchanges.com/work-with-us/) ✍️ Feedback form: [https://languagexchanges.com/events-feedback](https://languagexchanges.com/events-feedback) 📩 Email: [info@languagexchanges.com](mailto:info@languagexchanges.com)

**Join us on June 23rd for the Stripe London developer meetup. This is an in-person event for anyone building with Stripe. An evening focused on Stripe user experiences, product insights, best practices, and community.** 🍕🍺 **Perks** Food, drink provided! **🎫 Tickets** There is a hard limit for RSVP :) Wait list will be operating on Meetup. **📍Location** The event is hosted at Stripe's London offices near Liverpool St station. **🕚 Rough timings** * 6:00 pm - 6:30 pm: Doors open with refreshments * 6:30 pm - 7:45 pm: Talks and Q&A * 7:45 pm - 8:00 pm: Drinks, food, and networking **📣 Talks** 1. **Enabling Crypto in Stripe - from pay-ins to pay-outs,** Ana Andres del Valle 2. **What developers need to know about payments** \- Allison Farris\, Developer Advocate at Stripe Don't miss this opportunity to connect with the Stripe community. **You must bring a government issued photo ID.** [Stripe developer code of conduct.](https://stripe.com/legal/developer-code-of-conduct)g

This **in-person theatre** and **livestream** talk is available online from Gresham College to Basingstoke Science subscribers. **ADVANCE BOOKING AND PAYMENT IS REQUIRED FOR THIS TALK.** **More details and booking instructions on the Gresham web site:** **[https://www.gresham.ac.uk/speakers/professor-robin-may](https://www.gresham.ac.uk/speakers/professor-robin-may)** **SUMMARY** #### Part of: **[The Sir Thomas Gresham Annual Lecture Series](https://www.gresham.ac.uk/watch-now/series/gresham-annual-lecture)** What does modern physics have to say about the meaning of time? Is it a fundamental feature of reality or merely an emergent property from something deeper? Does time flow, and is the present moment special when Einstein tells us that all times coexist? Where does the arrow of time come from, if all the fundamental laws of physics are symmetric in time? In this lecture, Jim Al-Khalili examines many of these issues and gives our best guess answers as we understand the universe today. This is the Annual Sir Thomas Gresham Lecture. **LIVESTREAM TIMING** **The livestream will go live at 6.55pm, and the introduction will begin at 7.00pm. If you register but miss the livestream, the video will be available to you via the same link for two weeks after the event date.** For more information on livestreams, see the information below, or [visit our FAQs page](https://www.rigb.org/whats/faqs-ri-livestreams). Please use the event link you have been provided with. Gresham College has offered an outstanding education to the public free of charge for over 400 years. Today, Gresham College plays an important role in fostering a love of learning and a greater understanding of ourselves and the world around us. Please consider making a donation on their web site to support the work of Gresham College.

Hey everyone, We’re back with a new edition of the AI Security Engineers Meetup in London on June 23rd with 2 great talks! **Talk #1 - Architecting Safe Autonomy: High-Stakes Autonomous Agents Need Deterministic Checkpoints for safety** In the rush to build autonomous agents, we face a fundamental tension: the more freedom we give an LLM to solve complex problems, the more likely it is to drift into “stochastic hallucinations” or policy violations. Most safety efforts focus on restricting the model via prompts, which often stifles the very reasoning capabilities required for sophisticated tasks. This talk introduces InsideOut, a design pattern that prioritizes agent autonomy by implementing deterministic checkpoints. Rather than micro-managing the agent’s “thoughts,” the InsideOut architecture allows the agent to navigate freely through a task—provided it periodically “grounds” its progress in structured, verifiable artifacts such as JSON or Markdown. We will walk through a real-world application of this method: an agent designed for setting up and managing cloud infrastructure. The agent is given the autonomy to discuss and decide on Features, Stack Components, Configurations, Cost Estimates, Terraforms, Deployment, and Management. To ensure reliability, each stage requires the generation of a JSON artifact validated against deterministic rules. If a boundary is breached, the agent is triggered to repeat that specific stage until the output is within bounds, preventing error propagation. By drawing a parallel to the concept of a Brownian Bridge versus Brownian Motion, we illustrate how these checkpoints act as “pins” that anchor a random walk. This approach demonstrates how forced artifact crystallization allows an agent to design and deploy complex stacks with high independence and zero “drift.” This session provides a framework for building agents that are more productive because they are safely unconstrained. Speaker: Hossein Kakavand. Hossein did his Ph.D. at Stanford University. He has been with several start up in AI, ML and Distributed Systems, with IPOs on NASDAQ and LSE. He is currently a Co-Founder of Luther Systems focused on solving the Enterprise Operations problem at scale. **Talk #2: Agentic Development Security: Securing the AI Workforce** AI agents are rapidly becoming part of the software development lifecycle, writing code, interacting with tools, and making decisions with increasing autonomy. But as organizations embrace agentic development, a new set of security challenges emerges: How do you trust the tools agents use? How do you prevent dangerous actions? And how do you ensure the code they generate is secure? In this session, we'll unveil and demo Snyk Agentic Development Security, a new approach to securing both AI builders and the AI-powered tools they rely on. You'll see how organizations can secure the agent supply chain by vetting MCP servers, plugins, and external tools before agents interact with them; govern agent behavior through real-time policies that prevent destructive actions with Agent Guard; and ensure trusted output by automatically detecting and fixing vulnerabilities in AI-generated code at the moment of creation. Join us for a live demonstration of how security can keep pace with the rise of autonomous development, enabling teams to innovate confidently while maintaining control, trust, and resilience across their AI workforce. Speaker; Denis Kent - AI Security Engineer at Snyk. Denis is an AI Security Software Engineer at Snyk, building Evo, Snyk's agentic security platform. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- As always, expect great talks, free pizza and drinks, and even better company. 📍 **Where**: Snyk Offices, 24 Eversholt Street, London (Euston tube station is right across the street) 📅 **When**: June 23rd ## Agenda **6:00 PM** – Doors open **6:00 PM – 6:30 PM** – Food & drinks **6:30 PM** – Talks begin **7:30 PM** – Talks end & social time **8:30 PM** – Doors close Looking forward to seeing you there!

**Hello There! And welcome to our June Gophers @ Meta event!** It's immensely exciting that we'll be visiting Meta for our June event, but with great big office comes great responsibility, so it is **CRITICAL THAT YOU HEED THESE ENTRY REQUIREMENTS!** * You MUST bring Government Issued Photo ID with you, matching the name with which you sign up to this event * You MUST complete the NDA that will be emailed to you in advance of the event, before arrival * You MUST be over 18 years old * You MUST NOT record when inside the venue * You MUST wear the lanyard provided to you on the night at all times And needless to say, if you satisfy all of those criteria and manage to make it through security without being tackled, you MUST have a lovely time otherwise you know I'll be giving you a hard stare. A massive thank you to Meta for hosting! See you all there! ==== 📓 **Agenda**📓 ===== (Certain timings and orders may be subject to change) **5:30pm onwards:** Sign-In, Food & Refreshments **6:55pm:** Introduction **7:00pm:** 🗣️ **Jon Bodner: Testing Go: From the Basics to synctest** Testing is fundamental to software engineering and as a language focused on software engineering, Go includes a wide variety of tools to ensure your code is working as expected. I’ll walk through the basics of testing in Go, and then cover some of the more advanced tools: benchmarking, fuzzing, and the new synctest package. **7:40pm:** Raffle and Break **8:10pm: 🗣️** **Simon Emms: Failure Happens. Your Code Shouldn't Care** As Gophers, we expect our code to be retried, restarted and run more than once. The challenge is making that safe and maintainable without layers of defensive plumbing. Temporal lets us write reliable workflows in Go that automatically recover from crashes and restarts, while still looking and feeling like normal Go code. In this talk, I’ll explain how it works and prove it with a live demo that treats failure as just another code path. **8:40pm:** Raffle Winners! **9:00pm:** Pub! ==== 🎉 **Prizes & Discounts!** 🎉 ===== **JetBrains Raffle!** \- We have 3 free JetBrains Product licenses to give away to some of our lucky attendees\! **Ardan Labs Raffle!** \- We're giving away one course license for Ardan Labs' Ultimate Go Bundle\! **Manning Publications Raffle!** \- We're giving away 4 free Go e\-books\! **45% Manning Publications Discount** \- a massive discount provided by the fine people at Manning\! You can also support London Gophers Events by purchasing via our affiliate link [HERE](https://mng.bz/oKqM) \- Use Code "**LGMeetup45**" for 45% off! **GopherConUK Raffle!** \- We're giving away one free ticket\!\!\! **10% GopherConUK Discount** \- The lovely people over at GopherConUK have provided a discount code for [GopherConUK 2026](https://www.gophercon.co.uk/tickets)! At checkout, use code "**GCUK26LGM"** for 10% off! ==== 💡 **Priority Queue** 💡 ===== We reserve 20% of the attendee spots at our events for those who are underrepresented in tech. If they join the waitlist and there is a reserved spot open they will be bumped into going! These spots are reserved until the last Sunday before the event. How do we define underrepresented? We use public surveys done by the tech community such as the ones linked below. https://survey.stackoverflow.co/2022/#section-demographics https://www.jetbrains.com/lp/devecosystem-2022/#gender-and-development ==== [📢](https://emojipedia.org/loudspeaker/) **Become a Speaker!** [📢](https://emojipedia.org/loudspeaker/) ===== Have something to say? We want to listen! We are always looking for new speakers who want to share their adventures with Go and have mentors who can help. You can sign up to be a speaker here: https://gophers.london/apply ==== 🧳**Looking For a New Adventure?** 🧳 ===== On the Gophers Slack (https://gophers.slack.com) there is a **#london-jobs** channel where company and recruiters can post job opportunities. ==== [📞](https://emojipedia.org/telephone-receiver/) **How To Reach Us** [📞](https://emojipedia.org/telephone-receiver/) ===== **Email:** contact@gophers.london **Linkedin:** https://www.linkedin.com/company/london-gophers/ **Twitter / X:** https://x.com/LondonGophers **YouTube:** https://www.youtube.com/c/LondonGophers 📜 **All London Gophers events operate under the Go Community Code of Conduct** \- https://golang\.org/conduct * **Treat everyone with respect and kindness.** * **Be thoughtful in how you communicate.** * **Don’t be destructive or inflammatory.** **Please do not message members without their consent** If you encounter an issue, please mail contact@gophers.london or conduct@golang.org

HELLO HELLO!! We'll be at the THE CAMBRIA today as per EVERY WEDNESDAY!! 🥳 🌟 We'll have wonderful professional Life Model modelling for us tonight 🌟 We'll run a SHORT or LONG POSES SESSION (depending on the week) with POSES from 2 to 30min. 🌟 Check out our INSTAGRAM page for more information! https://www.instagram.com/Camberwell_life_drawing ALL LEVELS WELCOME ! ¸¸.•¨•♫¸¸.•¨•♫¸¸.•¨•♫¸¸.•¨•♫¸¸.•¨•♫¸¸.•¨•♫¸¸.•* Let's get together for some drawing and a glass of wine!! Camberwell Life Drawing is a group for anyone that want to spend a lovely and chilled evening creating some art in a relaxed, friendly and bohemian atmosphere. Untutored life drawing classes, every Monday (ar The Sun of Camberwell) & Wednesday (at The Cambria) evening from 7pm to 9pm. https://secure.meetupstatic.com/photos/event/a/5/8/a/event_464082378.jpeg *£14 per session (Cash or Card)* Some materials will be provided but please feel free to bring your own too! RSVP or drop-in on the night Latecomers are very welcome, too. WE HAVE LIMITED SPACE SO COME EARLY TO AVOID DISAPPOINTMENT* *WHY US?* Untutored Cozy room with beautiful lighting and Bohemian looking venue Relaxed, friendly atmosphere and cool people! All abilities welcome!! Don't be shy!! A glass of wine/beer for the interval & pub for a post-session wind down chat and possibly another drink. Background soft music Like us on Facebook & Instagram for more informations! https://www.facebook.com/camberwellifedrawing https://www.instagram.com/Camberwell_life_drawing

# **Join us for an afternoon of drawing in the heart of Angel, exploring the character, typography, and visual stories of local shopfronts.** **We'll meet outside Angel Station and take a slow sketching walk through the neighbourhood, paying attention to hand-painted signs, vintage lettering, market stalls, window displays, and the unique identities of independent businesses.** **Whether you're an experienced urban sketcher, designer, illustrator, or simply curious about drawing, you're welcome to join. Bring your sketchbook and your favourite drawing materials.** **Meeting Point:** Outside Angel Station 230PM No experience required just curiosity and a willingness to look closely. We look forward to drawing with you. Drawing Credits Mike Green

This June we're at FundApps offices in HYLO, Bunhill Row. Chris Simon's back in town, and will be joining us to talk about streams and queues; plus Tiago Sousa from SteelEye will be talking about the work they're doing around using AI in comms surveillance. Our hosts at FundApps will be providing drinks and snacks, and there will be plenty of time to chat beforehand and in the pub afterwards. **Chris Simon: It's like 10,000 streams when what you need is a queue** *🎶🎵 A new dev team adopted E-D-A* *Got head of line blocking, on their very first day* *Isn't it ironic, don't you think 🎶🎵* The last few years have seen widespread adoption of Event-Driven Architecture, supported by DDD practices such as event storming. But what does that orange sticky note become when we start implementing our design? Common implementation choices include event sourcing, streaming platforms like Kafka and queuing systems like RabbitMQ. Unfortunately not every orange sticky note has the same operational needs, and many teams remain confused about the differences between these options, resulting in the selection of the wrong paradigm for their needs. This can lead to unnecessary complexity & operational challenges such as head of line blocking, dropped messages, challenges dealing with failed messages, difficulty with adaptive scaling and inadvertently increasing coupling between services. In this talk we'll bring that orange sticky note into the runtime of our system. We’ll start with a deep dive into the similarities and differences between event streaming platforms such as Kafka and queueing systems such as RabbitMq, Azure Service Bus & AWS SNS/SQS. We’ll then look at ways to assess your orange sticky notes to work out which messaging and persistence paradigms suit each one, helping you build more resilient, scalable and loosely coupled event-driven architectures. **Tiago Sousa: AI in Comms Surveillance** In this talk, Tiago shares what it's actually like to build AI for communications surveillance at SteelEye. Financial firms are required to monitor and flag communications for compliance, but making AI work reliably in that context is harder than it sounds. He'll walk through real examples from the trenches: what worked, what didn't, and what he'd do differently. **Tiago Sousa** is a Staff Data Engineer and AI Lead at SteelEye - a platform that helps financial firms monitor and flag communications and trades to stay compliant with regulations. He's spent the last five years building the data and AI systems that make that work. Before that, he did research in bioinformatics, which means he came into fintech from an unusual angle and has the scars to prove it. He's based in Braga, Portugal.

\> This group has a new home\. \[Luma → [https://luma.com/ldn_software_guild](https://luma.com/ldn_software_guild)]([https://luma.com/ldn_software_guild](https://luma.com/ldn_software_guild) ) **About the London Software Guild** ​The London Software Guild gathers developers, architects, and teams across London who care deeply about the craft of building great software. No fluff, no vendor pitches — just people who take the work seriously, sharing what they've learned the hard way. *** ## ​**Talk:** Dimming the Lights ​**Abstract:** Lessons from the front lines of transforming our enterprise SDLC into a dark factory. We'll talk about quick wins, surprising sticking points, the unsolved problems of orchestration and validation, and controlled experiments and challenges that you can try with your team. ## ​**🎤 Speaker:** Macey Baker, Community Engineer at @Tessl ​**Bio:** As Tessl's Founding Community Engineer, Macey Baker is busy helping to build the future of AI-native development (and helping you build it too). Now an AI code generation obsessive, she got her start as an early employee at tech unicorn Intercom in San Francisco, before jumping the pond and roaming the London startup scene, working primarily in big data / ML houses. Some of her best friends are LLMs. *** ## ​Talk: Secrets in Plain Sight ​**Abstract**: Your AI assistant needs to understand your code, but your model provider doesn't need to know your credentials. We'll explore a novel guardrail architecture that lets models reason about sensitive data they never actually see — preserving full performance without the leak. We'll cover the design philosophy, the tradeoffs, and why context-aware approaches outperform blanket redaction. ## ​**🎤** Speaker: Daniel Trugman, Co-founder and CTO at Requesty ​Requesty is building a novel AI Gateway that provides a complete control plane for any AI use case. The team at Requesty is building innovative solutions that solve the problems of tomorrow for AI trailblazers.

## Details Welcome to the DevSecOps London Gathering June Event on Wednesday 24 June! We bring you two more great speakers, as well as the usual conversations, pizza and beer! 📍 **Hosted at Autogen AI, 123 Pentonville Road, London, N1 9LG** 📅 **Wednesday, 24 June 2026** 🕕 **6:00–8:00 PM** ## **Talk** **Abstracts:** **Talk 1 - AI Pentesting by Andy Hornegold** A talk about Pentesting **Speaker Bio**: **Name:** Andy Hornegold **Title:** Chief Security Technologist at Intruder **Bio:** Andy has a long career in cyber security including a decade in threat simulation and consulting. He’s worked with some of the largest organisations and brands across most industries and sectors, advising how to defend themselves against advanced threat actors. Career highlights include being the Assurance Regional Lead at one of the UK's leading cyber security consultancies, managing a team of 30 cyber security consultants, and helping critical national infrastructure providers stay secure. **Talk 2 - A Deep Dive into SAML by Glyn Wintle** Glyn will explain how SAML works (yes there will be lots of xkcd cartoons), the flaws found in standard deployments and give example in most implementations, walk through some of the attack/defence techniques that work with any xml based protocol and digital signatures before going deeper into some more technobabble just for you. Security Assertion Markup Language (SAML, pronounced sam-el) is an XML-based, open-standard data format for exchanging authentication and authorization data between parties, in particular, between an identity provider and a service provider. Think enterprise single sign on, used by governments, large companies, web sites, what could possibly go wrong? **Speaker Bio:** Glyn is CTO at Tradecraft. They are security consultancy, specialising in attack. Tradecraft helps organisations to become more secure by breaching their systems in the same way as criminal hackers, and then working with them over the long term to help fix what they find, and to help them get better at finding and fixing things for themselves. Glyn has been in security for over ten years, and before that he used to program. He has appeared before parliament to give evidence on some of the more crazy laws they have introduced connected to the internet, and has worked with the Open Rights Group lobbying on trying to fix some of them.

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

**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 connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Whether you've never done improv before, or you've done it for so long you were quoted in *Truth in Comedy*, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup**! The idea behind improvised comedy is to create entire scenes from scratch. A suggestion is taken from the audience and laughter is built on the spot. This can be done in game form, like *Whose Line Is It Anyway, Make Some Noise,* or *Wild 'n Out*; it can also be done in a longer way, to tell a complicated story, like *TJ & Dave*. Our meetup, which is central Ohio's longest running (and FREE!) weekly comedy event, brings the games for you to play in a safe, supportive, and compassionate environment. Afterward, many members will hang out in *Gresso's* itself and get to know each other. Not only is this a lot of fun, but you get to work on thinking faster on your feet, your public speaking, plus it's an excellent way to meet new people and build relationships that will last a lifetime, and you do that while laughing your butt off! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "*Yes, And*" that you'll have a blast!

Most people still use AI like a search box: type one question, get one answer, repeat. But the next step is AI agents: systems that can take a goal, break it into steps, use tools, remember context, and produce useful work for a human to review. In this beginner-friendly session, we’ll demystify what AI agents actually are — without hype or jargon. We’ll walk through practical examples of how agents can help with research, planning, writing, coding, operations, and personal productivity. We’ll cover: * What makes an AI “agent” instead of just a chatbot * How agents break tasks into steps * Where agents are genuinely useful today * Where they fail, hallucinate, or need human review * How to design simple AI workflows for your own work * A live demo of an AI agent-style workflow from start to finish No coding experience required. This is for anyone who wants to understand where AI tools are going and how to use them more effectively right now. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

**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