Lisp

🎉 Come along to the London Scala Talks! 🎉 In this event you'll hear from Caroline Morton and Katrina Petrevice. **Agenda** 6:00pm - 🥤 Doors open. Come along and grab a drink! 6:35pm - 🗣️ Introduction 6:40pm - 🗣️ Katrina Petrevice: Caching in Scala using Ref 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 - 🗣️ Caroline Morton: Accidental Functional Programming in Rust (From an Epidemiologist's Perspective) 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. **🗣️ Katrina Petrevice: Caching in Scala using Ref** Caching in memory is often one of the first strategies used to improve system performances. However, implementing caching in a purely functional way introduces unique challenges, specifically around state management and testability. In this talk, we will look at how to utilise functional programming principles with [Ref](https://typelevel.org/cats-effect/docs/std/ref), while maintaining clarity and composability. We will also deep dive into some common pitfalls and look into practical ways to test Ref effectively. ⭐ Katrina Petrevice ⭐ Katrina comes from a non–computer science background and was first introduced to Scala while working at JPMorgan. She credits much of her Scala knowledge to hands-on experience within her team, where she works on building and maintaining data pipelines and managing data systems. Since then, she has developed a strong interest in functional programming and now co-leads the Functional Programming Group at JPMorgan, where she helps share knowledge and foster a community around these ideas. **🗣️ Caroline Morton: Accidental Functional Programming in Rust (From an Epidemiologist's Perspective)** I don't have a background in functional programming - and I never set out to write it. But somewhere between writing trait-based epidemiological pipelines, composing data transformations, and leaning hard on Result, enums, and pattern matching, I started hearing from others: “That's pretty functional.” In this talk, I'll explore what it means to write “functional-ish” Rust as someone solving real-world scientific problems. I'll walk through the patterns I reach for - like chaining iterators, avoiding shared state, and embracing expressive types - and reflect on which functional programming ideas emerge naturally in Rust, even if you're not trying. I'll also share how designing for epidemiologists - most of whom are used to chaining functions in Python (like Pandas) or R - has pushed me toward creating ergonomic Rust APIs with Python and R bindings. These tools aim to feel familiar to scientists while leveraging Rust's power and safety under the hood. This is a talk for functional programmers curious about Rust, and for Rustaceans wondering if they've been functional all along. No formal theory required - just real code, real use cases, and a pragmatic perspective from someone building public health tools in Rust. ⭐ Caroline Morton ⭐ Dr. Caroline Morton is a medical doctor, epidemiologist, software engineer, and PhD candidate specialising in synthetic data, epidemiology, and Rust. With 60 peer-reviewed papers and two books on software, she combines deep technical expertise with a commitment to improving scientific workflows. Caroline co-founded the first [Women in Rust](https://www.meetup.com/women-in-rust/) group, fostering diversity and encouraging more women to explore opportunities in systems programming. She leads an open-source project improving codelist management in epidemiology using Rust, creating efficient, reliable tools for health data research. Her PhD focuses on synthetic data methods for epidemiology, particularly using Rust to generate large, realistic datasets. A strong advocate for open science and reproducibility, she contributes extensively to improving software practices through publications, workshops, and open-source projects. ———————————————————— 🗣️ 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.

This Meet Up is a chance to practice speaking English while meeting new people and making new friends from all over the world. The classes are fun, friendly and informal and we cover a variety of topics. I correct you and give you help with grammar and vocabulary as we go, so you can improve as you speak. I look forward to welcoming you and having a good conversation with you in English soon! TO FIND US: The class is in the CAFÉ on the FIRST FLOOR of the library. In the UK, the first floor is one floor ABOVE the ground floor. From the main entrance, go up the stairs or escalators straight ahead of you. Walk round to your left and you'll see the café. I'll have a sign with 'Meetup' and your names.

Register: [https://luma.com/hack-night-tessl-may13-2026?utm_source=neo4j](https://luma.com/hack-night-tessl-may13-2026?utm_source=neo4j) ## What's Hack Night? ​Five hours. One room full of builders. Zero fluff. As many demos as we can. ​Hack Night at Tessl is a London evening for people who would rather build than posture. You show up with an idea, find a team if you want one, spend a few focused hours shipping with a DJ in the background, and demo what you made before the night ends. Then we head to the pub. ​**When**: May 13\, 2026 \| 4:00 PM \- 8:45 PM BST **Where**: Tessl office, London ## Here's How It Works ​**4:00 PM - Doors Open** Check in, grab food, meet other builders, form groups, (or solo hack if you want) and decide what you're making. ​**4:30 PM - Opening Context** Quick welcome from the host and venue partner so everyone knows the flow for the night. ​**5:00 PM - Short Technical Remarks** If there are host or sponsor remarks, they stay short. The point is to get useful context, then get people building. ​**5:30 PM - Build Time** Heads down. Music on. Ship something. Use the time to test an idea, explore a tool, or finally build the thing you've been sitting on. ​**7:30 PM - Demo Time** Show what you made. Get feedback. See what everyone else shipped. ​**8:45 PM - Wrap Up** Final demos, shout-outs, and a clean finish to the night. And of course, Pub! We're heading to a pub nearby for a pint and a proper debrief. Come if you want to keep the conversation going.

Want to feel more confident in English? Join our friendly group classes and practise in a relaxed, supportive environment. ✔ Improve your grammar and comprehension ✔ Build your vocabulary and speaking skills ✔ Meet new people while learning ✔ Gain a certificate for good attendance ✔ Classes are completely **free** because the teachers are training with the University of Cambridge accredited CELTA course No cost. No pressure. Just real learning, face-to-face. 📅 Mondays & Wednesdays 🕡 6:30 – 8:30 pm 📍24 Great Chapel St. London W1F 8FS (near Tottenham Court rd) ✅ Everyone welcome!

We're delighted to announce an exciting LSCC event on Wednesday 13th May, in partnership with our friends at Zopa Bank! Join us at the Zopa Canary Wharf office in London for this session and get the chance to flex your architectural design muscles! "So how are we supposed to get great architects, if they only get the chance to architect fewer than a half-dozen times in their career?" — Ted Neward. This quote highlights the need for practice, which is what our LSCC architecture katas provide: a safe, repeatable way to hone your software architecture design skills by simulating architectural challenges. **What's the format?** You'll be split into groups and have a business problem to solve. You'll be tasked with designing a technical architecture to meet that problem context. As with real-life you'll have to manage various trade-offs in your design and interact with a Product Owner to clarify your questions. At the end of the task each team will showcase their architecture and technology choices back to the wider group as part of a group discussion. Whether you're a seasoned coder, software architect or new to the scene, you're invited to share insights, discuss best practices, and learn from fellow participants. No prior session attendance or architecture knowledge is required – just bring your enthusiasm. No laptop is required for this session, we'll provide each group with paper, pens and sticky notes to support the activity. Thank you to the Codurance team that will run the event at Zopa Bank's office. Find out more at https://www.codurance.com/ Food and drinks will be provided with vegetarian, vegan and non-alcoholic options available - thanks to Zopa Bank for sponsoring refreshments and hosting in their great office. **About Zopa** Founded in 2020 with a full banking licence and backed by some of Silicon Valley’s most iconic investors, digital bank Zopa is building the Home of Money. This is a place where financial products deliver good value and managing money is made effortless; deep and long-lasting relationships mean customers are left confident about their choices. One of the UK’s highest rated and most celebrated financial brands, Zopa has been recognised with over 10 British Bank Awards, holds a Trustpilot rating of 4.6/5, and has one of the highest customer satisfaction scores in the industry. Zopa Bank Limited is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority. https://www.zopa.com/ We look forward to seeing you soon!

Our first 'class cultural trip' was really fun so I'm carrying on the series and we're going to keep exploring the British Museum. The idea is we'll meet in the cafe at the British Museum, and then choose which part of the museum we want to explore. We'll walk around it, stopping to look at things we find interesting. I'll help you with the vocabulary you need to talk about what you can see. At the end we'll go back to the cafe to summarise what we've learnt and do a little vocabulary test to see what you can remember from your visit! If you are late, don't worry too much, because we will stay in the cafe until everyone has arrived and then start exploring the museum. I hope to make 'cultural visit classes' to museums/ exhibitions/ galleries into a regular event so let me know which places you are interested in. I plan to choose places that have free entry. I need a minimum of 2 students to run this Meetup. Maximum 5 students so everyone gets a good chance to speak.

For our May meetup, we're delighted to be back at the fabulous Accurx offices. We have two amazing talks lined up and the agenda will be: * 6:30pm - arrive, drinks, networking * 7:00pm - Welcome & Housekeeping * 7:15pm - **Talk** **1: "A practical guide to inner sourcing your IDP"** Bridging the gap between developers and platform teams is hard. Scattered documentation, fragmented language and hidden knowledge leave developers frustrated, while platform teams struggle to understand what devs really need. Treating platforms as products is a start, but treating them like open source projects unlocks real collaboration, allowing developers to contribute and maintain features. In her roles as Developer Advocate and platform engineer, Lian has years of experience working with highly bureaucratic organisations helping to improve developer experience and adoption. In this talk, she’ll share concrete steps to identify contribution opportunities, set up maintainable processes, and measure engagement. You’ll leave inspired with ideas to boost adoption, reduce friction, and turn your platform into a collaborative, thriving ecosystem. **Speaker:** Lian Li, Cloud Native Human *Lian always wanted to save the world. After leaving law school, she decided to work with computers instead. While in Web Dev, she started attending tech events, and soon fell in love with the community. In her roles as Consultant and DevRel, Lian combined technical knowledge with a focus on the human side.* *Currently, Lian works as freelance Platform Engineer in Amsterdam and is the Chief Karaoke Officer for Kuberoke, the first and only Kubernetes Karaoke Community. She also enjoys performing in musical improvisation theatre and standup comedy shows.* * 7.45pm - food, more drinks & networking * 8.00pm - **Talk** **2: "The Humans Behind the Platform: Structuring Teams for Culture and Capability**" It’s easy to focus on the tech when building a Platform team, and that’s tremendously important, but it’s often the people and how they work together that determine success. Over the past couple of years, Claire has led a Platform Engineering Team through different formations, migrations, and tooling adoptions. Whatever shape the team has taken, whatever they're working on, the constants have been a need for clear purpose and a culture where people can thrive, this takes work, and has sometimes been tricky to get right. In this talk, she’ll share what she's learned from shaping and supporting platform teams: what’s worked (and what hasn’t) when it comes to team composition, balancing seniority, and supporting career growth. Collaboration is central to how to operate, so she’ll talk about how her team works with and supports internal customers, and what’s helped to navigate complex, knotty migration projects. She’ll also cover how they built a culture that gives engineers space to lead. We want engineers at every level to feel confident taking ownership, and that takes deliberate effort. If you’re figuring out how to shape your platform teams to enable others as well as deliver, this talk will offer practical ideas, and maybe a few things to rethink. **Speaker:** Claire Reckless, Engineering Manager *Claire is an Engineering Manager and leads a Platform Engineering Team. With a background spanning Tech Support, Testing, and QA across sectors like Finance and Security, she brings a deep appreciation for resilient systems and collaborative teams. Claire is passionate about learning and development, and she’s especially proud of her past work coordinating an apprentice programme, an initiative that’s helped build a more diverse and sustainable pipeline of engineering talent. She’s energised by helping engineers at all levels grow their confidence, take ownership, and shape the future of their teams.* * 8.30pm onwards - drinks and networking. So, please come and join us, we look forward to seeing you there. The LOPUG team. * Food and drinks provided * Good time will be had by all

Discover the World at International Cafe! We are a group of Christian volunteers set out to create a friendly community that welcomes everyone! Come and practice speaking English with our English speaking volunteers. You will learn more about British culture and discuss life with NEW topics each week. We also include a Bible story at the end of our sessions. At International Cafe, we start our meet up with Tea & Coffee and continue in engaging conversations. Each week, we'll look at NEW topics about British culture and history, so you can learn and socialize. Best of all, it's a free event and open to everyone! So mark your calendars: 🕕 Time: **Sunday at 2:30 PM** 📍 Address: ECIR OEA, Inspire at St James Questions? Text Organiser at 07708228436.

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!

MCP is changing how developers build with AI, but we're just scratching the surface. Join us for an evening of talks that go beyond retrieval to explore what's actually possible when you give agents real tools, real constraints and real APIs. **Agenda** ​6:00 PM - Doors open, registration and networking ​6:10 PM - Welcome (Upsun & Cloudflare) ​6:20 PM - MCP: Context is Everything! - Carly Richmond, Elastic ​6:45 PM - Sandboxes: how to limit agents so we can use them more - Patrick Dawkins, Upsun ​7:00 PM - Break (Food & Drinks) ​7:30 PM - Cooking with MCP in VS Code - Liam Hampton, Microsoft ​7:55 PM - Efficient tools with MCP code mode - Confidence Okoghenun, Cloudflare ​8:15 PM - Open networking and drinks ​9:00 PM - Close 🗣️ ​**Talks** ​**MCP: Context is Everything! - Carly Richmond (Developer Advocate Lead, Elastic)** ​MCP is a powerful tool for giving LLMs capabilities to not just retrieve information, but to automate key actions based on relevant data. Let’s see how it can be used for retrieving relevant context and other activities such as observability. ​**Efficient tools with MCP code mode - Confidence Okoghenun (Senior Developer Advocate, Cloudflare)** ​Traditional MCP approaches choke on context windows: Cloudflare's 2,500+ endpoint API would require 1.17 million tokens. Code Mode flips the script by having LLMs write code against typed APIs instead of making direct tool calls, achieving 99.9% token reduction. Come learn how code mode works and how to optimize your MCP tools with it. ​**Sandboxes: how to limit agents so we can use them more - Patrick Dawkins (Principal Engineer, Upsun)** ​We want our agents to run longer and use more tools, but we're hampered by constant prompts for approval. Sandboxes are the practical middle ground: isolate the agent so you can stop watching every command and let it work. This talk covers what "sandbox" means, who provides them today and the Linux primitives that let you build one yourself. ​**Cooking with MCP in VS Code - Liam Hampton (Senior Cloud Advocate, Microsoft)** ​In this session Liam will show you how VS Code is fully supporting the MCP spec, from MCP Apps to sandboxing and elicitations. 📅 **Date and Time:** Thursday, May 14, from 6:00-9:00 PM 📍 **Location:** Cloudflare Address: 6th Floor, County Hall/The, Riverside Building, Belvedere Rd, London SE1 7PB, UK 👉 You can also register here: https://luma.com/eb8j6lhu ⚠️ Please make sure you provided your full name (no nicknames or abbreviations will be allowed) and to bring your ID card as it will be mandatory to show it upon check-in to security. Entry will be first come, first served. We recommend arriving early to make sure you get in. **⚡️ Interested in giving a talk? ⚡️** Have you ever considered presenting on your Elastic use case? We welcome 5-10 minute lightning talks, 45-minute deep dives, and everything in between. If you're interested, please submit via our [CFP](https://sessionize.com/elastic-meetups/) or send us an email at [meetups@elastic.co.](http://meetups@elastic.co./)

**MONTY ENGLISH CONVERSATION GROUP** [https://montyenglish.co.uk/english-conversation-group-classes-in-london](https://montyenglish.co.uk/english-conversation-group-classes-in-london) **How to find us** When you arrive at the Royal George we go down into the basement and you will find us there. Just ask a staff member if you cannot find us! Here is the location of the Royal George on google maps: [https://maps.app.goo.gl/HpkySsu2rEqUUub1A](https://maps.app.goo.gl/HpkySsu2rEqUUub1A) * Food or drink at the pub is not included (please make at least one purchase - they have a good range of drinks and great food if you feel hungry) **How are the lessons?** The lesson is a General English lesson focused on speaking and error correction - every lesson we usually cover 3 different topics. This will encourage you to use new vocabulary and practise grammatical structures. The group has a limit of 25 people but I usually accept people if you are on the waiting list. You will be divided into groups of 3-6 with others of a similar speaking level so you'll have plenty of opportunity to talk and ask questions to your qualified, native teacher Jon. The lesson takes place in the relaxed environment of the Royal George basement which is a pleasant pub, a two-minute walk from Tottenham Court Road tube station. The lesson is ideal for pre-intermediate, intermediate and upper-intermediate students wishing to get to the next level. If you have any questions about the English lesson then please call me or send me a message. **Payment** Payments can be made in cash or by card (free of charge) when you come to the class. If it is your first time it is only £2! After your first time it is £6 for a single class or you can buy a ticket that makes each class cheaper; 5 classes for £20, 10 classes for £25 (you can use these tickets whenever you like and do not need to come in a set period of time) or 20 classes for £40 which has a limited use to within a six-month period. You can also pay via our website: [https://montyenglish.co.uk/english-conversation-group-classes-in-london](https://montyenglish.co.uk/english-conversation-group-classes-in-london) I hope to see you soon - if you have any questions please message me (via WhatsApp) on 07771 561 576 All the best, Jon (event organiser)

PLEASE READ the event information 👇 **You must have a confirmation to** **attend this event** **Welcome** to the Highest Rated International Language Exchange group in London🏆 with 1600+ reviews rated 5 stars ⭐⭐⭐⭐⭐ Join us every **Friday** for our weekend global language exchange and social 😊🍻🥂 **TO ATTEND THIS EVENT...** 🔘 BEFORE buying your drinks, collect & wear your badge as soon as you arrive 🔘 Have your Meetup confirmation visible on your phone. 🔘Pay the £2 event fee. The event starts at 7pm. **The event fee is £6 if you arrive after 8:30pm** Start meeting the community and having fun...lots of fun! [www.languages.london](www.languages.london) 🇬🇧🇪🇸🇫🇷🇯🇵🇮🇹🇩🇪🇮🇳🇨🇳🇧🇷🇰🇷🇪🇬🇭🇰🇺🇸🇨🇴🇺🇦🇹🇷🇷🇺🇦🇺 **WHEN & WHERE** **The fun** starts at 7pm. We're returning to The Craft Beer Co, St Mary Axe.** **Address: 29-31 Mitre Street, London, EC3A 5BU** [https://maps.app.goo.gl/49HnHGap8hQMbQNWA](https://maps.app.goo.gl/49HnHGap8hQMbQNWA) **HOW WE DO IT** It's simple .... ▶️When you arrive please collect your personalised language badge from us. We'll be waiting to give you a warm welcome 😃 ▶️Wear your badge during the event and always return it before you leave ♻️ ▶️You're expected to buy something from the bar to support the venue, who kindly offer us a dedicated space. 🇵🇱🇹🇼🇲🇽🇻🇳🇧🇬🇵🇸🇸🇪🇮🇱🇨🇦🇳🇱🇿🇦🇭🇺🇹🇭🇵🇪🇧🇴🇳🇬🇳🇿🇨🇭 **WHO** Languages in London events are organised for our community - being social, making new friends, building cultural bridges and always very relaxed. We have the largest number of languages and countries represented in our weekly language exchange and social events in London. This is** not **a dating event. Our events are open to Internationals, Locals, Expats, Students, Travellers...Everyone! Are you an 18 to 24 year old? Come and explore our events. Our events are for a truly global community and citizens from around the 🌎 It's your international language hub in London 💂 Is this the Intercambio you've been looking for? Want to practice your ingles, espanol , francais, italiano, Deutsch, portugues or other European languages? Asian languages ? Or maybe prefer to only speak English.... that's just fine. **All languages and all fluency levels are welcome **Spread the word...Bring your friends, colleagues and family 💚 The creator and organiser of** Languages in London - Girish**, will always be visible at the event and there to support you and help with introductions, if you prefer. We want to remain the BEST language events group in London, being the biggest isn't our focus. These are real events with real people. We don't fill our events with inflated numbers and fictitious attendees 👻 **Inactive community members and those that "no-show" at our events are regularly removed from our group.** **LANGUAGES** Here's a selection of some of the languages that our community speak or have been practicing ... English, Spanish (incl Latin American), French, Italian, Portuguese (incl Brazilian), German, Japanese, Chinese (Mandarin & Cantonese), Russian, Korean, Hindi, Turkish, Arabic, Ukrainian, Polish, Hebrew, Swedish, Bulgarian, Vietnamese, Hungarian, Bengali, Dutch, Catalan, Farsi, Greek, Urdu, Welsh, Romanian, Norwegian, Czech, Slovakian, Estonian, Danish, Finnish, Turkmen, Latvian, Lithuanian, Nepali, Yoruba, Filipino, Thai, Albanian, Croatian, Serbian, Ebo, Afrikaans, Tamazight, Tagalog, Creole, Malagasy, Mongolian, Tok Pisin and more... you get the idea! 🇷🇴🇬🇹🇨🇿🇳🇴🇩🇰🇫🇮🇨🇾🇺🇾🇪🇬🇧🇬🇦🇷🇰🇪🇱🇰🇲🇦🇹🇳🇩🇿🇸🇬🇲🇾 **SUSTAINABLE **🌎🌳 Like you, we really care about our planet. We don't like single use paper name tags, stickers or wristbands as they can't be reused or recycled and can even damage your clothing ☹️ The Solution? Our personalised and completely reusable Languages in London badges! 👍 So, please make sure you return your badge to us, before you leave the event. We'll sanitise it (anti bacterial & disinfectant cleaners) and use it again & again & again. Thanks for helping us do the right thing and keep our costs down🙏 **SAFE SPACE FOR EVERYONE **👮‍♂️ We don't tolerate prejudice or harassment of any kind, at any time. Be polite and respectful to everyone else and they will reciprocate. Let's keep the space safe, welcoming for everyone and free of any political agendas. Please report any concerns to the Organiser immediately. Please look after your belongings, the venue is a public place. We may take photos or video at the event for future promotional use. Let us know if you'd rather not be included, we respect your choice 📸 **SPREAD THE WORD **🗣️💬** If you enjoy our events, please tell your friends and colleagues and help us grow your **community, thank you 💚 Join our community - [https://www.languages.london/](https://www.languages.london/) We're looking forward to welcoming you at Languages in London 😊👋 🇲🇰🇳🇵🇧🇩🇵🇭🇦🇪🇦🇱🇧🇪🇮🇪🇰🇿🇱🇦🇯🇴🇱🇹🇱🇻🇪🇪🇰🇭🇨🇱🇲🇳🇨🇺

We have three great talks lined up, plus time to chat and meet others in the community. We can’t wait to see you there! We want NSLondon to be welcoming to everyone and support a broad range of voices. To help address existing imbalances in attendance, we’re offering a limited number of **early-access spots to women, non-binary people, and others who are currently underrepresented** in the iOS developer community. You can request one of these spaces by filling in [this form](https://docs.google.com/forms/d/e/1FAIpQLSfkWvVomYXUwESWHet2HDxTia4euvYcP2WKtkVQLXCzjmtbvA/viewform) before RSVPs open for general availability. (**Update:** This form is now closed.) **💬 Talks:** **Raphael Velasqua** — “Claude as Your iOS Pair Programmer” *What if your codebase could teach Claude how your team codes — not just generic Swift? A glimpse of scaffolding, writing reliable tests and more with Claude.* **Paul Shone** — “Turning Applications in to Apps: Tips on getting hired in a changing marketplace” *Join Paul Shone, Co-Founder of Pixelated People, a recruitment leader with over 15 years of experience in building world-class mobile engineering teams. Paul shares invaluable insights on how to standout and secure your dream job in this changing and competitive job market. If you are a job seeker aiming to land the perfect role this session is packed with actionable advice that will set you apart from the competition.* **Vadim Popov** — “From ARKit to Vision – How Far Can You Push the iOS Camera” *This talk explores how far you can push the iOS camera by rebuilding core camera features using AVCaptureSession, comparing real-time face and skeleton detection across ARKit, Vision, and MediaPipe, and diving into live image analysis like sharpness, brightness, and composition scoring with Vision and Accelerate. It also reflects on what users actually value in a camera app, sharing practical lessons and missteps from the journey.* **🕓 Schedule:** 6:30 PM Arrival and check-in at JustPark reception 7:00 PM Presentations start 9:00 PM Continue the conversation at the pub (TBA) * **Arrival Time:** Arrive at 6:30 PM to complete the check-in process. If you need mobility assistance, let us know at least one day in advance. * **Check-in Process:** Go to JustPark reception. Provide your full name and mention the NSLondon event to receive your badge. * **Full Names Required:** Ensure your Meetup profile has your full name or send it to us in a private message at least 48 hours before the event. * **Late Arrival:** A JustPark staff member will guide us to the event space. If you arrive late, you may need to wait. 💎 **Acknowledgments:** We'd like to thank JustPark for their generous support in hosting this event. NSLondon is a community-driven group and needs your support! Contact us for information about venues, speakers, or sponsorships. Feel free to reach out with any questions. See you there! Please read our [Code of Conduct](https://nslondon.com/coc). MC: Aled Samuel

**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** TBD **YouTube Link** TBD

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.

**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 John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. 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

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."

Join us for a practical, beginner-friendly guide to choosing the right large language model. We’ll compare major models like ChatGPT, Claude, Gemini, and Llama, talk about when to use hosted APIs versus local models, and break down the tradeoffs around cost, speed, quality, privacy, context windows, coding ability, and reliability. You’ll leave with a clearer mental model for picking an LLM based on your actual use case instead of hype, benchmarks, or brand names. No deep AI background required. 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.

# **Saturday, May 16, 2026** **Beginners’ Session 1:30 to 2:00 PM** **Dancing 2:00 to 4:30 PM** **Please note that this is an afternoon dance!** **You are invited to join us for dinner at Olive and Lime (in the church’s back parking lot) after the dance.** **Kim Thompson, from Athens, will take the mic and we’ll dance to the music of Roscommon Sessions. Kim will lead us through a variety of old and new dances that welcome newbies and delight experienced dancers.** **Roscommon Sessions, a traditional Irish music quartet from Columbus, Ohio, began their musical journey centered around the energy and spontaneity of Irish sessions. They are excited to bring their lively jigs and reels, a couple of flowing waltzes, and the occasional musical surprise to the All Soles contra dancers!** **Roscommon Sessions is Steve Steele (guitar), Jim Lindroth (percussion), Carol Metheny (fiddle) and Sarah Sigmon (fiddle).** **We hope to see you dancing!** **Location: First Unitarian Universalist Church, 93 W. Weisheimer Road, Columbus, OH 43214.** **Cost is $10 for adults, $5 ages 12-25.** **New to dancing? A beginners’ session, from 1:30 to 2:00 PM, will get you started. You will learn some basic figures that will be repeated in the afternoon’s dances. All dances will be taught and no partner is needed. Dancing is from 2:00 to 4:30 PM.** **Please bring your own refillable water bottle.** **All Soles Dance upcoming dance dates are, as follows:** **June 20, 2026** **Tentative:** **July 25, 2026–Summer Potluck and Dance** **No August Dance** **September 26, 2026** **October 17, 2026** **November 21, 2026** **December 19, 2026** **Visit our website at: https://firstuucolumbus.org/connection/all-soles/**

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.