Functors and Monads

Love *The Traitors*? Enjoy murder mysteries, psychology, or board games with a twist? Join your host, Matt, for an evening of **Blood on the Clocktower** — a thrilling, live-hosted social deduction game full of strategy, suspicion and dramatic reveals. *** ## **🔎 What Is Blood on the Clocktower?** Blood on the Clocktower is a game of murder and mystery, lies and logic, deduction and deception. Each player is secretly assigned a unique role on either the **Good** or **Evil** team — and every role has a special ability. * The **Good team** must work together, share information and identify the Demon. * The **Evil team** will sow distrust, manipulate conversations and eliminate players under the cover of night. Expect intense discussions, clever bluffs, unexpected alliances and plenty of laughs along the way. No two games are ever the same. *** ## **🎭 Fully Hosted & Beginner-Friendly** Your Storyteller for the evening is Matt, who has been playing and running Blood on the Clocktower for over four years. He’ll: * Clearly explain all the rules before you start * Guide the game throughout * Make sure everyone feels comfortable * Keep things moving and fun Never played before? No problem at all. Beginners are very welcome. ## **📍Where to find us** You'll find us at one of Time Out's Top 20 London breweries, the Hiver Taproom. The games takes place in their tasting room - the perfect location for an evening of gaming! *** ## **👥 Who Should Come?** This event is perfect for: * Fans of social deduction games * Murder mystery lovers * Board game enthusiasts * Strategic thinkers * Friendly chaos-makers * Solo attendees looking to meet new people You don’t need to bring a team — many people attend solo, and the game naturally encourages interaction. *** ## **⏳ What to Expect** * Duration: Around 1.5–2 hours * Group size: Typically 8–15 players * Atmosphere: Engaging, dramatic, friendly and inclusive * Experience level: Open to all *** ## **🎲 Why You’ll Love It** If you enjoy reading people, spotting lies, forming alliances and making bold accusations (all in good fun), this is the game for you. Whether you're ultra-competitive or just here for a great social night, you'll leave with stories to tell. *** RSVP now and join us for a night of suspicion, strategy and serious fun. Will you save the town… or get away with murder?

This might be the first time we've had two events in one month! We have a special *second* March event with a panel of experts from Citadel Securities who will discuss what it's *really* like using C++ in financial systems. The event is timed to be just before the WG21 (C++ standards committee) meeting the following week, so we have some big visiting names. **Citadel Securities** will be hosting this one and providing a larger venue (the same place they hosted us last summer) with drinks and snacks. Thanks Citadel! **For this venue we need to collect full names and email addresses** so they can send you a QR code to get in. You will also be sent terms & conditions via Docusign. The data will only be used for this purpose and not published anywhere or used for other purposes. Please note that the QR code will be sent from **[notify@22bishopsgate.com](mailto:notify@22bishopsgate.com)** (a send-only address). If you'd like to speak at a future event please get in touch at [cppldn.uk/speak](http://cppldn.uk/speak). **Here's the approximate schedule:** **18:30** *Doors open* **19:00** "Intro and news" - *Phil Nash* **19:10** Lightning talks * Timur Doumler – *C++26 contract assertions* * Gasper Azman – *std::execution* * Juan Alday – *Why C++ Is Critical to Finance* * Carl Cook – *C++26 and Low Latency Systems* * Herb Sutter – *Reflection + Totality of C++26 and Why it is an important release* **20:00** Panel Discussion Herb, Timur, Gasper, Juan and Carl stay with us for a panel, moderated by Allie Tamburro, on the topic of, "*What it’s really like using C++ in financial systems/industry"* **21:00** *Conclusion, and moving on somewhere else* \-\-\- **About the speakers** *Herb* is a technical fellow at Citadel Securities, designer of several Standard C++ features, and chair of the ISO C++ committee and the Standard C++ Foundation. His current interest is simplifying C++. *Juan* is a seasoned professional with a rich background in finance and technology. He has a specific focus on C++, and serves as a member of the ISO C++ Standards Committee (WG21) and Vice-Chair for INCITS Programming Languages, US. His expertise extends to developing high-frequency electronic trading systems, with a focus on derivatives and financial markets. His academic foundation is in computer science and electrical engineering. *Timur* is a software engineer specialising in low-latency and real-time C++. He works at Citadel Securities and is an active member of the ISO C++ standard committee, where he has (co-)authored many successful proposals including [[assume]], std::inplace_vector, and contract assertions. *Gašper* is a C++ committee member (WG21), ecosystem engineer (CitadelSecurities), and occasional monad whisperer. Currently developing \`std::execution\` as the basis for general async in C++ and advancing contracts for a safer, more expressive language. Believes the best abstractions are zero-cost — the rest are just category theory you haven't applied yet. C++ London regular. *Carl* is a quantitative developer on the low latency options team at Citadel Securities, where he builds and optimizes resilient, high-performance trading systems. Carl holds a Ph.D. in Computer Science from the University of Canterbury in New Zealand.

🤖 **Most AI writing tools keep you in a chat box. This talk is about what happens when you step outside it.** Led by **[Max Clayton Clowes](https://www.linkedin.com/in/maxclaytonclowes/)**, afractional product manager, we'll look at how technical writers — regardless of coding background — can use Claude Code to work in a docs-as-code environment, extend their documentation tooling, and build workflows that hold their own standards over time. We'll cover: \- Why Claude without proper context is a frustrating experience and how Skills fix that \- How Claude Code enables technical writers to work with frameworks like Docusaurus without needing to be developers \- Building and extending documentation tooling — plugins\, components\, GitHub Actions — that most teams don't have the time or skills to build from scratch \- Using Claude Code to maintain docs at scale: auditing\, keeping content in sync with a changing codebase\, and automating the checks that keep quality consistent The talk is aimed at technical writers of all levels. You don't need to be comfortable in a terminal to get value from it — we'll show a clear path from the Claude web interface through to Claude Code, and you can engage at whichever level suits you. **Want to follow along?** Pick the level that works for you and get set up before you arrive: \- Web interface: A Claude account at claude\.ai\. Free tier is fine\. \- Claude Code: Download the Claude desktop app at claude\.com/download\. Requires a paid Claude plan \(Pro or above\)\. On macOS/Linux\, run *curl \-fsSL https://claude\.ai/install\.sh \| bash* to install. Windows users can download the installer directly. No other dependencies needed. Not set up? Everything will be on screen — you can explore at your own pace afterwards. **🗒️ Agenda** **When:** Thursday 19 March, from 6.30pm **Where:** The Gallery @ [The Corner](https://maps.app.goo.gl/C1iSyEeMffB7BZjf6) (42 Adler Street, E1 1EE) **What:** **18.30 - 19.00** Arrival **19.00 - 19.10** Welcome & Housekeeping **19.10 - 19.40** Part 1 of presentation **19.40 - 20.00** Break **20.00 - 20.30** Part 2 of presentation **20.30 - 21.00** Closing and networking *All times are approximate.* **📍 How to find us:** Enter the hotel, turn right and right again past the bar to find The Gallery meeting room. Look for WTD signs and friendly organisers. **📸 Photos:** Note that the organizers will take some photos for the WTD group.

Our THURSDAY EVENING Session and social is primarily for Club Members but guests are welcome. It is aimed at Players of INTERMEDIATE LEVEL AND ABOVE. We would like to keep the level above intermediate. Anyone below this level may be asked to attend coaching sessions until they reach the required standard There is coaching available for beginners and players of all levels. The session will be run as follows. Courts 1 and 2 Games Court 3 Coaching & Drills If you believe you should be playing at a higher level I will be pleased to assess your game. Please respect the way the session has been planned. Any deviation from this and you may be asked to leave. Sometimes team members will need to practice together. If you are interested in trying out for one of our many league teams please let Mani know. Places may be restricted if a match is being played. The cost for this session is £13 MEMBERS WILL ALWAYS BE PRIORITISED WHEN SIGNING UP FOR SESSIONS. **THERE IS A 12 HOUR CANCELATION PILICY. IF YOU CAN'T MAKE IT PLEASE UPDATE YOUR RSVP TO NO 12 HOURS BEFORE THE SESSION. ANY TIME UNDER 12 HOURS AND YOU WILL BE RESPONSIBLE FOR PAYMENT AND UNABLE TO RSVP AGAIN UNTIL PAYMENT IS CLEARED** PLEASE BRING DRINKING WATER TO STAY HYDRATED AS ACCESS TO WATER FOUNTAINS MAY BE RESTRICTED. PLEASE PAY WHEN YOU RSVP TO GUARANTEE YOUR SPOT. I WILL NOT BE TAKING CASH PAYMENTS FOR THE TIME BEING. PAYMENT DETAILS Use Payment link https://monzo.com/pay/r/storm-bc_lDA87GJFk9hkqt Or Monzo Bank Storm BC 04-00-03 77638837 Thanks and see you on court.

***Please note: signing up to this event does not mean you are booked onto the course. For full details and booking information, please visit [Cademy.](https://datacove.cademy.io/introduction-to-r-shiny)*** **Introducing Datacove** Datacove are a Data and Analytics Consultancy Team based in Brighton, with experience in founding many well-attended R & Python events. Plus, home of the EARL Conference! We work across multiple streams - from marketing and consumer analytics, to bespoke dashboards, process automation, and training! :) **Introduction to R in Shiny** Thursday 19th March, online 10am-12pm. £99 + VAT **Understand what Shiny is and when to use it** * What Shiny does, how it fits into the R ecosystem, and common use cases (apps, dashboards, internal tools, data products) * Differences between static R outputs (plots, reports) and interactive Shiny applications **Learn the basic structure of a Shiny application** * The roles of ui and server components * How shinyApp() brings the UI and server together * File structures for a multi-file Shiny app **Build user interfaces with Shiny layouts** * Using layout functions such as fluidPage() , sidebarLayout() , sidebarPanel() , and mainPanel() * Organising content with rows, columns, tabs, and panels * Adding titles, text, and spacing for clean, readable app design **Work with Shiny input and output elements** * Common inputs (sliders, dropdowns, text inputs, buttons, checkboxes) * Displaying outputs such as plots, tables, and text * Connecting inputs to outputs through the server logic **Introduction to Shiny’s reactive programming model** * What reactivity is and why it matters in interactive apps * How Shiny automatically updates outputs when inputs change **Create a foundation of a complete, working Shiny app** * Combining UI layouts, inputs, outputs, and reactivity into a functional application * Running and testing apps locally * Leave with a foundation app, ready to learn more advanced content to build upon. **Be ready to build your first dashboard or application** * Understanding next steps, such as theming, modules, and deployment options **How to Join** Please visit [Cademy](https://datacove.cademy.io/introduction-to-r-shiny) to book your space.

**Kindly note that this is a paid event and the average number of attendees for our events is 60-70 people. You can register on [https://www.eventbrite.co.uk/e/ukrainian-connector-london-march-business-networking-tickets-1983428238253?aff=meetup](https://www.eventbrite.co.uk/e/ukrainian-connector-london-march-business-networking-tickets-1983428238253?aff=meetup)** Ukrainian Connector® London brings together Ukrainian entrepreneurs & professionals to build trusted connections and grow in the UK. Ukrainian Connector® is a professional networking event bringing together **Ukrainian entrepreneurs, founders, company directors, investors, and senior professionals** based in London and across the UK. Hosted at **2 Chesham Hotel, London**, this Ukrainian networking event is designed for ambitious professionals who want to expand their network, build strategic partnerships, and strengthen the Ukrainian business community in the UK. If you are searching for: • Ukrainian networking event in London • Ukrainian entrepreneurs in the UK • London business networking in March • Ukrainian founders in London Ukrainian Connector® is designed for you. ## **👥 Who Should Attend?** This London professional networking event is ideal for: • Ukrainian entrepreneurs and startup founders in London • Ukrainian company directors and business owners in the UK • Investors and entrepreneurs looking to connect with Ukrainian businesses • Consultants, advisors, and senior professionals • Professionals interested in Ukrainian–UK business collaboration Whether you are launching, scaling, investing, or expanding, this Ukrainian business networking event connects you with the right decision-makers. ## **🌟 Why Attend Ukrainian Connector®?** ### **Expand Your Ukrainian Business Network in London** Meet Ukrainian professionals, founders, and directors building businesses across the UK. ### **Build Strategic Partnerships** Create collaboration opportunities, new client relationships, and long-term business alliances. ### **Strengthen the Ukrainian Professional Community** Support visibility, cooperation, and growth within the London Ukrainian business ecosystem. ### **High-Quality London Networking Format** Unlike large expos or informal meetups, Ukrainian Connector® prioritises meaningful conversations, structured networking, and long-term opportunity creation. ## **📅 Event Details** 📍 **Venue:** 2 Chesham Hotel, London 📅 **Date:** 19 March ⏰ **Time:** 19:00 (London time) This Ukrainian networking event at 2 Chesham Hotel provides a professional and elegant setting for focused business networking in London. ## **🕒 Event Format** **19:00 - 21:30– Arrival & Professional Networking** Hosted, free-format networking focused on quality business conversations. ## **📲 WhatsApp Group** On the day of the event, attendees will receive an email invitation to join the exclusive Ukrainian Connector® WhatsApp group to continue conversations before and after the event. ## **👔 Dress Code** Business attire or smart casual. No T-shirts or trainers. ## **ℹ️ Refund Policy** Advance tickets are discounted and non-refundable but may be reassigned to another person if you are unable to attend. ### **Event Disclaimer 📸** Photos and videos may be taken during the event for use across social media and promotional materials. * [United Kingdom Events](https://www.eventbrite.co.uk/d/united-kingdom/events/) * [Greater London Events](https://www.eventbrite.co.uk/d/united-kingdom--greater-london/events/) * [Things to do in London](https://www.eventbrite.co.uk/ttd/united-kingdom--london/) * [London Networking](https://www.eventbrite.co.uk/d/united-kingdom--london/networking/) * [London Business Networking](https://www.eventbrite.co.uk/d/united-kingdom--london/business--networking/) * [#business](https://www.eventbrite.co.uk/d/united-kingdom--london/%23business/) * [#startup](https://www.eventbrite.co.uk/d/united-kingdom--london/%23startup/) * [#entrepreneur](https://www.eventbrite.co.uk/d/united-kingdom--london/%23entrepreneur/) * [#networkingevent](https://www.eventbrite.co.uk/d/united-kingdom--london/%23networkingevent/) * [#london](https://www.eventbrite.co.uk/d/united-kingdom--london/%23london/) * [#ukraine](https://www.eventbrite.co.uk/d/united-kingdom--london/%23ukraine/) * [#businessnetworking](https://www.eventbrite.co.uk/d/united-kingdom--london/%23businessnetworking/) * [#business_growth](https://www.eventbrite.co.uk/d/united-kingdom--london/%23business_growth/) * [#business_professional](https://www.eventbrite.co.uk/d/united-kingdom--london/%23business_professional/) * [#londonconnector](https://www.eventbrite.co.uk/d/united-kingdom--london/%23londonconnector/)

**\*\*** ***When you RSVP, please ensure your full name is included on your meetup account profile to ensure successful entry to the event, thank you. \*\**** Join the London Software Craftsmanship Community (LSCC) and a panel of speakers with a wide range of career paths from **IG Group, Bank of America, Ohme** & **Codurance** for an evening of tech career advice. **A big thank you to our sponsors for the evening, IG:** IG is a FTSE 250 FinTech company building award-winning trading platforms used by over 340,000 people worldwide. Our mobile, web, and desktop products give clients access to thousands of markets — from stocks and shares to futures, options, and crypto — across 16 global regions. We operate with high autonomy in cross-functional teams, moving fast to ship better experiences for our customers. With offices in 18 countries and ambitious growth plans ahead, we're on a journey to evolve our tech and push the boundaries of what's possible in financial trading. Come along to learn more about the engineering challenges we're tackling and the products we're building. Discover IG at [https://www.ig.com/uk](https://www.ig.com/uk) \-\-\- Panelists: * Tolga Sofuoglu - Head of Engineering, Ohme * Nathalie Gavet - Engagement Manager, Codurance * Qaiser Maher - CTO UK&IE, IG Group * Micheal Nestor, Technology Analyst, Bank of America Merrill Lynch The panel will be facilitated by **[Ed Farrow, Principal Consultant @ Codurance](https://www.linkedin.com/in/edfarrow/)** Hear our panel discuss their personal journeys and strategies, including: * Unlocking career growth and key points to look out for * Navigating career pivots and embracing new technologies * Practical strategies to land your next promotion * Tech careers in the AI era Whether you're starting out, aiming for leadership, or a seasoned pro ready to share your wisdom, this event is for you. **Spots are limited, register now!** **Agenda:** 18:00 - 18:30 - Arrival, pizza and drinks + networking 18:30 - 20:00 - Intros and panel + Q&A 20:00 - 21:00 - Networking & exit A big thank you to our amazing sponsors IG Group who are providing the space, drinks and pizza and to [Codurance](https://www.codurance.com/) for organising the meetup.

If you are you interested on creating your own comic, but need help to put your vision together or do not know were to start then we may have the solution for you. Come talk shop with fellow creators, share experiences, ideas, techniques and tips to help each other grow and have a chance in the industry.

**Love to Drum - Djembe and Percussion Fun!** Join us for an exciting drum circle experience with our regular host, Simon, who will be teaching simple and not-so-simple West African based drum rhythms. Together, we'll create uplifting and positive vibrations through the power of drums and percussion instruments, sharing in the joy of making music in a friendly and inclusive environment. Whether you're a beginner or have some experience, this drumming session is open to all. You'll have the opportunity to learn Djembe and Dundun drum rhythms and playing techniques. It's a chance to immerse yourself in the world of drumming and connect with others through the universal language of music. Don't miss out on this joyful and enriching experience! No matter your level of ability, you're bound to enjoy it. The cost for the entire session, including drum hire, is £15. Advance booking available here or at www.bunow.co/events

Fancy having a laugh and making some friends? Then join us for an afternoon at the Top Secret Comedy Club! Tickets are a bargain at just £1 each, so snap yours up now: [https://thetopsecretcomedyclub.co.uk/events-listings/saturday-330pm-13/](https://thetopsecretcomedyclub.co.uk/events-listings/saturday-330pm-13/) They do a collection at the door after the show and ask that audience members contribute. Meet us outside the Top Secret Comedy Club at 2:00 PM sharp, and let's share some laughs together and have a good time :) If you can't find us, please ring 07961179692. After the show, we'll be heading for a meal - more opportunity to get to know each other! The perfect way to round off the day.

The topic for March is "Our Bodies, Ourselves" Speak Easy: true stories, told live. The idea is simple: an audience, an open microphone, and great stories. Hilarious, gripping, poignant- it's up to you. Audiences are invited to come to listen or come to tell as folks from all corners of Columbus offer their stories live on stage! Held at Wild Goose Creative's warm, intimate space, this night of tales occurs on the 3rd Thursday of every month. Doors open at 6:30 pm, show starts at 7:00 pm. Please arrive early if you want to tell, as we generally only have room for a limited number of tellers, and the sign-up sheet has a tendency to fill up fast. Formed around the idea that people need stories--they're what hold and draw us together--SpeakEasy celebrates the strangeness and commonness of being human. And in a world of smartphones, Facebook, Twitter, and more . . . it gives people a real, breathing, in-person way to connect. The night is geared for true stories of all kinds, taking the best tales told around kitchen tables, in darkened pubs, on the street corner, and at late-night parties and giving them an audience. Speak Easy is also a great outlet for performers, writers, and artists looking to share their favorite stories and perfect their skills. We strongly encourage tellers to please tell the story rather than read it so we keep within the spirit of good storytelling and stay engaged with the audience. All are welcome. Hang around after the show for a drink and build community!

**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 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA

Let’s do it again! 😍 12:30 Lunch- First Watch 6547 Artesian Run,Delaware Shop after lunch at: Painted Tree Boutique (over 100 indoor vendors) 59 Meadow Park Ave., Lewis Center

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

**Tickets still on sale for Play (posted separately)**

**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: Type Annotations with John Cassidy 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

**New Dojo Location!** **Buffalo Wild Wings in Grandview** 968 W 5th 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 topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)