C#

**Tuesday Badminton Session – 8:00–10:00pm at Queen Mother Sports Centre, Victoria** **Venue** Queen Mother Sports Centre (Everyone Active), 223 Vauxhall Bridge Road, SW1V 1EL It’s a 5‑minute walk from Victoria Station. Full sports hall with 5 courts. **RSVP Required** Everyone attending must RSVP in advance. Members can also confirm by email or text. **Session Fee** £14 per session Includes premium feather shuttles. **Payment** Please pay at the start of the session. First‑timers must pay in cash due to previous no‑shows and non‑payment. All first‑timers must also register on our in‑house MatchMaking app before joining the courts. If you haven’t registered, you won’t be able to start playing. Mobile reception in the hall is poor, so if you are set up to pay by bank transfer, you must pay in advance before attending. If we have to chase payment afterwards, the fee becomes £20. Bank transfer is available from your second session onwards once it’s set up and we confirm your playing level fits the standard of the club. Please only attend if you have RSVP’d on Meetup and are able to pay the session fee on arrival or have already transferred in advance. If payment still isn’t settled, you will be removed from the group and blocked from attending future sessions. The same applies to no‑shows who do not release their RSVP within the cancellation policy. **Membership Options** We are a membership‑based club and offer several membership options if a place is offered to you and your playing level fits the club. If membership isn’t for you, pay‑as‑you‑play is also available by RSVP on meetup. Full details: [https://www.sidsbadmintonclub.org.uk/membership.php](https://www.sidsbadmintonclub.org.uk/membership.php?utm_source=copilot.com "www.sidsbadmintonclub.org.uk") **Skill Level** We keep a good standard at our Tuesday sessions, but don’t worry if you’re a bit rusty or haven’t played for a while. We’ll help you find your level. Our MatchMaking app grades you over your first three consecutive sessions, and we offer a three‑session trial for £36 so you can settle in and see where you fit. As a guide, Tuesday sessions are for intermediate to strong intermediate ladies, and strong intermediate to advanced men. If you’re unsure of your level, come along — we’ll assess it on court and point you in the right direction. **What’s Included** • Premium feather shuttles (Yonex, Yehlex, Victor) • 5 courts • Fair and organised rotation • Players grouped by level • Optional grade‑based competitive courts in the last 30 minutes when possible. • MatchMaking app available for those who want to track results **Cancellation Policy** Please cancel at least 12 hours before the session. Late cancellations or no‑shows will be charged the full fee. Outstanding fees must be cleared before attending again. **Parking** Free after 6:30pm on single yellow lines and after 7:00pm on single red lines. Always check local signs. **Liability** Sid’s Badminton Club is NOT responsible for personal property loss or injury. **Questions** Message us on Meetup or email info@sidsbadmintonclub.org.uk Website: [www.sidsbadmintonclub.org.uk](http://www.sidsbadmintonclub.org.uk/) Looking forward to seeing you on court. Sid’s Badminton Club

**BOOK HERE**: https://sportas.co.uk/games/45401 **Game Description:** Come and play Tuesday evenings Lower-Intermediate volleyball session in Poplar 🔥 Picturesque court with plenty of serving space and also space to stay warm on the side when your team is off waiting for the next game 🙌 **Rules** 3 teams of 6 Games to 15 points

**BOOK HERE**: https://sportas.co.uk/games/46656 **Game Description:** Come and join our badminton session in Canning Town 🔥 Join our whatsapp Group: https://chat.whatsapp.com/LsLjg8CxI8MIxSFb82qkdb Music 🎶 3 courts, social session - the general ability is mid intermediate. There will be spare rackets but please bring your own racket if you do have one. 1 new tube of FEATHERED shuttles will be provided per session, plus a set of Yonex 300 plastic shuttles. 🚪 Getting Into the School 1\. The school is surrounded by a green fence\. 2\. Entrance is near the stone wall\. 3\. At the gate\, find the intercom on the right\-hand side\. 4\. Press the ‘Call’ button and wait for security to respond\. 5\. When the intercom flashes green\, push the gate open\. \-\-\- 🏸 Finding the Indoor Court 1\. After entering\, go through the visitor gate\. 2\. Follow the corridor to the end\. 3\. Look for the yellow double doors – the badminton courts are inside\! \-\-\- 🚻 Facilities 🔹 Changing Rooms & Toilets \- Located outside the court area in the corridor\. \- Male facilities – right\-hand side\. \- Female facilities – left\-hand side\. 💧 Water Points \- There are three water points in the corridor outside the court\. \- Bring a water bottle to use with the water pump\. Enjoy your game! 🏸🔥 **Rules** Games to 21 Max two games on Max one game off

**BOOK HERE**: https://sportas.co.uk/games/45378 **Game Description:** Come and play in a casual​​​​​​​​​​​​​​​​​​​​​​,​​​​​​​​​​​​​​​​​​​​​​ friendly & social badminton session. The session is for mixed ability players (mainly beginners & intermediate players). So please be respectful and kind towards less experienced players - we all have to start somewhere 🧡 🌱 We use YONEX MAVIS 300 Nylon Shuttlecocks. 🏸 We have a few spare rackets if needed. Format: We play doubles for the whole time and keep rotating opponents/partners across courts so everyone plays each other. Venue: 🚪Entrance to the sports hall is on the corner of Celebration Avenue and Temple Mills Ln 🧼There are showers, changing rooms & a water fountain at the venue 🚶‍♂️5 minute walk from Stratford International DLR Station 🚗 Paid car parking is available on site **Rules** Classic doubles rules - can be explained at the start of the session if you’re new to badminton or need a reminder 🤝

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/)

**BOOK HERE**: https://sportas.co.uk/games/49820 **Game Description:** 🎮 Warm up and game only setting. 🌟 Positive environment. 30mins warm up 1.5 hrs game balls provided for warm up — Any questions pls reach out to your captain or the organisers 🙏🙂‍↕️ **Rules** \- point to 15 \- max 2 games in a row \- 3 team of 6 players \- modified games situation might be applied depending on situation \(5:1\, modified 5:1 or 6:2 etc\.\) \*Privacy policy for games only sessions\* By attending this game session, you agree to the following: \* Video recordings/photos are allowed only during free game\* sessions \* Attending implies consent to potentially being recorded by other participants \* Any videos must only be shared via private links \* Distribution limited to session participants only \* Explicit consent required for any public sharing \* Respect others' privacy and comfort \*Please contact the co-organisers if you have any questions about the policy.

**\*RSVP** then use this **Collctiv Payment Link>** \*\*[https://pay.collctiv.com/tuesday-badminton-37370](https://pay.collctiv.com/tuesday-badminton-37370) (\*\*full details below) This session is suitable for **Lower Intermediate and above players!**! Due to Exams at Haberdashers till the end on June, we will be here for 8 weeks! **SESSION DETAILS** * 3 court for tonight only (usually 4). so 18 players max. * Feather Shuttles Provided. Bring your own racket * **Time** \- 8\.00pm till 10\.00pm * **Cost** \- from £11\.50 per person \(book early to avoid a booking fee\) * Strict Cancellation, No-Show & Refund Policy! (see below) * **Updates & Notifications -** Make sure to have your meetup notifications on, **Booking & Payment Details (updated 12/01/26)** * **First RSVP,** then **use this [COLLCTIV](https://pay.collctiv.com/tuesday-badminton-37370)\* payment link** **until 2pm Tue** * \*Contributions toward the Collctiv App is optional, untick it! * **[Click Here](https://docs.google.com/document/d/1pMsg6dATGes2pM59YuuzQBXabl882VvvXeDby0Y2usc/edit?usp=sharing)** to see full details regarding Collctiv * * **After 2pm (AutoPay) payments made via Meetup/PayPal** (fees inc), and any unpaid bookings will be withdrawn, but can rebook if a space is available **TERMS & CONDITIONS** * **You must RSVP on MEETUP, and pay as instructed!** * If you plans change and you cannot attend, update your RSVP immediately! * **[Click Here](https://docs.google.com/document/d/12WmILk6X9dwgf_W0Cm6kgswKeW4ovHDTN8TBvN4Gq10/edit?usp=sharing)** to view details for Full Details By RSVPing for this event you confirm you have read and agree to our T&C's **VENUE DETAILS** * Harris Academy Peckham, 112 Peckham Road, SE15 5DZ * Parking is available within the school car park. Entry is via Peckham Road, buzz for entry if closed * Players enter via reception to gain access to the sports hall **Dress Code, Well Being, Conduct & Equal Opportunity:** * Wear suitable clothing and footwear for indoor sporting activity. * Ensure than your jewellery is also kept to a minimal, and avoid wearing large ear rings, chains or bracelets/bangles. * If the above is not suitable, you might not be able to participate within the session. No refund, exchange or credit will be given! * If needed please seek advice from your doctor before playing any sports. * You are responsible for warming up/cooling down stretches to reduce the risk of strains/ injuries. * Play at your own risk as Crossfire Badminton Club will not be held responsible for any injuries incurred. * We welcome players of all backgrounds, and treat everyone equally with respect. This is also expected from our participants. If you fail to do this, you may be asked to leave the session, or even banned from future sessions

🎉 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.

**BOOK HERE**: https://sportas.co.uk/games/49697 **Game Description:** 🎮 Warm up and game only setting. 🌟 Positive environment. Rules \- point to 15 \- max 2 games in a row \- 3 team of 6 players \- modified games situation might be applied depending on situation \(5:1\, modified 5:1 or 6:2 etc\.\) —- \*Privacy policy for games only sessions\* By attending this game session, you agree to the following: \* Video recordings/photos are allowed only during free game\* sessions \* Attending implies consent to potentially being recorded by other participants \* Any videos must only be shared via private links \* Distribution limited to session participants only \* Explicit consent required for any public sharing \* Respect others' privacy and comfort \*Please contact the co-organisers if you have any questions about the policy.

**BOOK HERE**: https://sportas.co.uk/games/45715 **Game Description:** Come and play in a Saturday evening Mid-Intermediate & Above volleyball session in Canary Wharf 🏙️ ❗️Please be considerate & only sign up to this game if you’re a MID-INTERMEDIATE player or above. If we think you are a beginner/lower-intermediate player we will cancel and refund you from the game❗️ 💦 Water fountain, showers and changing rooms available on site 🧭Directions: 🚶‍♂️5 minute walk from Canary Wharf station **Rules** \- 3 teams of 6 \- Games to 15 points \- Max 2 games in a row \- Please be kind and respectful to all players 🧡

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.

**BOOK HERE**: https://sportas.co.uk/games/49011 **Game Description:** Drills and Games for Lower Intermediate level on a smaller court. Led by a club's coach and open to 6-8 club members and 6 players from Sportas. **Rules** Respect all participants and have fun! Everyone plays all the time, no waiting around.

**BOOK HERE**: https://sportas.co.uk/games/49608 **Game Description:** Come and join a mid intermediate session in Canning Town 🚨Directions🚨 📍Enter via Morgan Street 🚶‍♂️5 minute walk from Canning Town Station🚗 Free car parking on site 🚿 Showers, changing rooms, water fountain & toilets are present **Rules** \- 3 teams of 6 \- Games to 15 points \- Max 2 games in a row \- Please be kind and respectful to all players 🧡

**BOOK HERE**: https://sportas.co.uk/games/50589 **Game Description:** 🎮 Warm up and game only setting. 🌟 Positive environment. \*Privacy policy for games only sessions\* By attending this game session, you agree to the following: \* Video recordings/photos are allowed only during free game\* sessions \* Attending means consenting to potentially being recorded by other participants \* Any videos must only be shared via private links \* Distribution limited to session participants only \* Explicit consent required for any public sharing \* Respect others' privacy and comfort \*Please contact the co-organisers if you have any questions about the policy. **Rules** \- point to 15 \- max 2 games in a row \- 3 team of 6 players \- modified games situation might be applied depending on situation \(5:1\, modified 5:1 or 6:2 etc\.\)

**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

**Presenter:** Matthew Hess, Microsoft MVP **Time:** Pizza at 6:00, Presentation Starts at 6:30pm Eastern **Location:** Theoris, 9000 Keystone Crossing, Either Downstairs or in Suite 230 if main meeting room isn't available, Indianapolis In 2019 (C# 8.0) Microsoft introduced a feature that has generated a lot of confusion, debate and outright dissent. I'm talking about Nullable Reference Types. In this presentation, I we dig into this feature, explore why it exists, what problem it tries to solve, how it works, and how people have critiqued it, so that you as a programmer can decide if and how you want to use it. Looking forward to seeing you there!

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

A session on using Claude Code, Anthropic's AI coding agent, in real Unity development. We'll cover what coding agents are, where Claude Code fits, and how to apply it to an actual game project. The format is presentation-style, with live demos and time for questions throughout. After brief scene-setting on coding agents and what makes Claude Code distinct, we'll go problem-driven: demoing it live on a released Unity game and introducing each feature as a solution to a problem we hit. What to Expect: * An intro to coding agents and where Claude Code fits * A live demo on a real Unity project * Key features as solutions to real problems: 𝖢𝖫𝖠𝖴𝖣𝖤.𝗆𝖽, context management, hooks, skills, subagents, and MCP * Unity-specific pain points, including Domain Reload and MCP caveats * Putting it together All experience levels welcome. Food and drinks provided. *Note: meetup topics may change — check back for the latest details.*

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

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com