MapReduce

Be part of the next Londroid event on Thursday 18th December, hosted by Redis at their London office. Join us for an evening of Android community, conversation and end of year celebration. This session is a little different from our usual format, with a mix of interactive activity and plenty of time to network with others working in Android. Refreshments will be provided, and we’ll use the final meetup of the year to look back, share ideas and round things off together. **Tickets:** We have 100 tickets available on Meetup. **Schedule:** **6:00PM – 6:30PM:** Doors open and initial networking. Grab a drink and meet other Android enthusiasts. **6:30PM – 7:00PM:** Londroid 2025 Rewind: A celebration of the milestones, talks, and community moments that defined our year. **7:00PM – 7:30PM:** Interactive activity – a fun segment for everyone to enjoy. **7:30PM – 8:00PM:** Final networking and close. Spend time chatting and engaging with the community before the evening wraps up. **Venue:** Redis OfficeFloor 5, Bridge House4 Borough High StLondon SE1 9QQ **Our Hosts and Sponsors** **Redis** Redis is the world’s fastest data platform, offering cloud and on-prem solutions for caching, vector search and high-performance data workloads. Designed to fit easily into any tech stack, Redis helps teams build, scale and deploy fast, reliable applications with minimal setup and responsive support. **Novoda** Novoda is a digital product agency dedicated to building high-quality software. Their team of engineers helps companies scale, modernise and improve their development practices to deliver exceptional digital experiences. Join us for an evening of learning, collaboration and community as we wrap up the year with Londroid. Looking forward to seeing you there.

Join startup founders, tech entrepreneurs, business owners and professionals in business, finance and tech for an **evening of business networking in the elegant Sycamore Bar at the 5-star Middle Eight Hotel, Covent Garden.** **💼 Note re Contactless Cards** 
Free RSVP gives entry only - the contactless business card is not included.
To receive a contactless networking card, please book a paid ticket when available. **This informal yet refined business mixer** is the perfect opportunity to exchange ideas, spark collaborations, and build meaningful business connections that go beyond LinkedIn. **👔 Dress Code**
 This is a 5-star hotel. Dress code is strictly smart or business attire.
No casual wear, trainers, hoodies or sportswear allowed. **What to Expect** ✅ Relaxed, premium networking environment - no stage or speeches, just natural conversations with inspiring professionals.
 ✅ Guest list of max 40 attendees to encourage genuine connections as opposed to impersonal crowded conferences.
 ✅ Mix of industries - startups, tech, finance and business. **Why Attend** • Expand your network with startup founders, tech entrepreneurs, business owners and senior professionals in business, finance and tech from London and beyond.
 • Share insights and opportunities in tech, business growth, and digital innovation.
 • Experience luxury yet relaxed networking in one of Covent Garden’s most sophisticated venues. **Venue** Sycamore Bar, Middle Eight Hotel
A refined, design-led bar inside the 5-star Middle Eight Hotel.
Located in the heart of Covent Garden, within walking distance of Holborn, Covent Garden, and Tottenham Court Road stations. **Important Info** • Ages: 18+ (ID required for bar purchases)
 • Photography Notice: The event may be filmed or photographed for promotional use by CineEye (audiovisual production company in London)
 • Dress Code: Smart/business attire only (see above). 
• Contactless Cards: Free RSVP does not include contactless business card (see above). **Join Us** Step into an evening where business meets elegance - designed for founders, innovators, and professionals who value meaningful business conversations. **Limited to 40 spots - reserve yours today!**

Guillaume Gomez is coming from Paris to explain what are front-end and back-end in the rust compiler, how they are implemented and will show-case how some things are implemented in the GCC backend

\*\*\* The more parents and kids, the cheaper it gets for all of us! \*\*\* \*\*\* Do you know a Location? \*\*\* **Action Steps Needed:** **1,** RSVP to the Waitlist to show your interest. **2,** Post your location idea in the discussion! **3,** Fill in our basic info form at https://form.typeform.com/to/z37tCjtL. **Interested in East London are:** Jonathan, Anna Butterworth, Victoria474389760, **Interested in North West London are:** Soba **Possible location Ideas are:** Your home, an Adventure Playground, free play coffee shop, Soft play location, your garden or summer house, task-based play like clay modelling, Wall or rock climbing, splash pad, forest play time with hut, River Picnic... What would work well for you?

Nipnip provide a free 'Doctor Bike' service each month.

Join us for a heartwarming family gathering where children of all ages, along with their furry dog friends and beloved grandparents, are warmly welcomed with open arms! **Place:** Republic.London Sandpit **Where:** Sandpit Outside East India DLR station, next to Tesco Express **Time:** 3 pm to 5 pm **Cost: £1** (Just pay for the adult, this decreases the chance of no shows) This special event invites parents to come together with their kids to have a fun play time in the sand pit! Let’s gather, unwind, and delight in watching our children play, laugh, and make memories together!

At Bitcoinology, we look for the signal amongst the noise. In this event, Antoine Riard will help us explore and understand the latest, most recent advancements in BitVM and other on-chain proof technologies. Come and learn how the brightest minds are thinking outside the box to scale Bitcoin for millions in the future. Join us at the Cyphermunk House, the home away from home where bitcoiners hang out and unwind and let's have some fun. Location: **9 John Street, Holborn, London, WC1N 2ES** Date: Thursday 18th Dec 2025 Time: 18:30

Join us for a heartwarming family gathering where children of all ages, along with their furry dog friends and beloved grandparents, are warmly welcomed with open arms! **Place:** Republic.London Sandpit **Where:** Sandpit Outside East India DLR station, next to Tesco Express **Time:** 3 pm to 5 pm **Cost: £1** (Just pay for the adult, this decreases the chance of no shows) This special event invites parents to come together with their kids to have a fun play time in the sand pit! Let’s gather, unwind, and delight in watching our children play, laugh, and make memories together!

**REGISTER BELOW FOR MORE AVAILABLE DATES!** ↓↓↓↓↓ **[https://luma.com/stelios](https://luma.com/stelios)** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Who is this for?** ​Students, developers, and anyone interested in using **Large Language Models (LLMs)** to build real software solutions with \*\* Python. ​*Tired of vibe coding with AI tools? Want to actually understand and own your code, instead of relying on black-box magic? This session shows you how to build LLM systems properly, with full control and clear engineering principles.* **​** **Who is leading the session?** ​The session is led by **[Dr. Stelios Sotiriadis](https://www.linkedin.com/in/stelios-sotiriadis)**[,](https://www.linkedin.com/in/stelios-sotiriadis) CEO of **[Warestack](https://www.warestack.com/),** Associate Professor and MSc Programme Director at Birkbeck, University of London, specialising in cloud computing, distributed systems, and AI engineering. ​*Stelios holds a PhD from the University of Derby, completed a postdoctoral fellowship at the University of Toronto, and has worked on industry and research projects with Huawei, IBM, Autodesk, and multiple startups. Since moving to London in 2018, he has been teaching at Birkbeck. In 2021, he founded Warestack, building software for startups around the world.* **​** **What we’ll cover?** ​A hands-on introduction to building software with LLMs using **Python**, **Ollama**, and **LiteLLM**, including: * ​How LLMs, embeddings, and agents work. * ​Calling local models with Ollama or cloud models (OpenAI, Gemini and more). * ​Using LiteLLM for custom prompts and tool-calling. * ​Building simple agents from scratch. * ​Introduction to RAG (Retrieval-Augmented Generation). * ​Working with vector databases (ChromaDB) and vector similarity search library (FAISS). * ​Storing, searching, and retrieving embeddings. * ​Introduction to Streamlit for interactive data apps. * ​End-to-end examples you can run on your own machine. ​This session focuses on theory, fundamentals and real code you can re-use. **​Why LiteLLM?** ​[LiteLLM ](https://docs.litellm.ai/docs/)gives you low-level control to build custom LLM solutions your own way, without a heavy framework like LangChain, so you understand how everything works and design your own architecture. A dedicated **LangChain** session will follow for those who want to go further. **​What are the requirements?** ​Bring a laptop with **Python installed** (Windows, macOS, or Linux), along with Visual Studio Code or a similar IDE, with at least **10GB of free disk space** and **8GB of RAM**. > ​*This space is needed for running local models during the workshop.* > ​*If you don’t have a suitable laptop, please contact Stelios ([stelios.sotiriadis@warestack.com](mailto:stelios.sotiriadis@warestack.com)) before registering.* **​What is the format?** ​A 3-hour live session with: * ​Interactive theory blocks * ​Hands-on coding * ​Step-by-step exercises * ​Small group support * ​Three 10-minute breaks * ​Q&A and class quizzes ​This is a **highly practical, hands-on class** focused on code and building working LLM systems. **​What are the prerequisites?** ​A good understanding of programming with Python is required (basic to intermediate level). I assume you are already comfortable writing Python scripts. **​What comes after?** ​Participants will receive an optional mini capstone project with one-to-one personalised feedback. **​Is it just one session?** ​This is the first session in a new sequence on applied AI, covering agents, RAG systems, vector databases, and production-ready LLM workflows. Later sessions will dive deeper into topics such as embeddings with deep neural networks, LangChain, advanced retrieval, and multi-agent architectures. > ​*You can decide afterwards whether you’d like to join future sessions.* **​How many participants?** ​To keep this interactive, **only 15 spots** are available. Please register as soon as possible.

A Rabble session is 1 hour of fun and social team games. Each game disguises high-intensity intervals within the rules, giving you an effective, all-body workout without even realising it. We play a bunch of different games at each session (like British Bulldog, Capture the Flag, Dodgeball, Frisbee and many more), and every class is different. Sessions are open to all, no matter your sporting ability. Each game is explained before we start, so there's no need to have played any of the games before. Come solo or bring friends! And stay at the end for the social part! Who knew getting fit could be this fun? **TO BOOK**: It's essential that you book onto sessions via our website, using the link below; due to restrictions on games and preparation times we cannot accept walk-ins, or late arrivals. [https://joinrabble.com/locations/london/](https://joinrabble.com/locations/london/) Use the code **FREEPLAY** to get your first game free! *** We play every: * Monday in Finsbury Park (19:00 - 20:00) * Tuesday in Shoreditch Park (19:00 - 20:00) * Wednesday in Elephant & Castle (19:00 - 20:00) * Saturday in Southwark Park (10:30 - 11:30) * Saturday in Finsbury Park (11:00 - 12:00) * Sunday in Clapham Common (12:00 - 13:00) We hope to see you playing soon! PS. We have a group of dedicated regulars, so numbers are usually much higher than Meetup might suggest. Book your place here: [https://joinrabble.com/locations/london/](https://joinrabble.com/locations/london/) **Love Rabble**

**BOOK HERE**: https://sportas.co.uk/games/37242 **Game Description:** Come and join our social badminton session in Canning Town 🔥 Music 🎶 3 courts, social session, so no matter your ability you are welcomed to join 🙏 There will be spare rackets but please bring your own racket if you do have one. Plastic shuttles will be provided. Join our whatsapp Group: https://chat.whatsapp.com/LsLjg8CxI8MIxSFb82qkdb 🚪 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 points

**BOOK HERE**: https://sportas.co.uk/games/36633 **Game Description:** Join us in East London, John Orwell Centre in Wapping. Full-court, 3 teams, 5v5. A team stays on twice in a row regardless of win or lose (Apart from the first game of the session when the winning team stays on). A good game level. Quite inclusive. A mix of regulars and guests. **How to get there:** Come in either from Wapping Overground station (5’ away from the venue). Or via bus 100 or D3 and stop at Wapping Health Centre. Via DLR from either Shadwell or Towergate stations. Closest underground station is Tower Hill (15’ walk). Whatsapp Valentin on 07879011856 for more details. **Rules** 11 points or 8 minutes game: 2 points each shot inside the circle 3 points from outside No free throws No advantages, as in whichever team reaches 11 points first wins. But each team must rotate after being on twice in a row.

Monday December 29th at 6PM we'll be meeting up dinner at the Pies & Pints at Easton. Feel free to bring guests. Sandwiches run about $15 and large pizzas run $20-30.

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 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)

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant. Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'! Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life. Mission: grow, support, and provide community for atheists in Central Ohio. Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision. Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge. Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ). This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us.

The December Ohio North Database Training user group meeting will be held on **January 6th, 2025 at 5:00PM**. This will be a **HYBRID** event and we will be joined online by **Jason Romans**. You're welcome to come meet in-person at our meeting location, the offices of Improving at **[6000 Freedom Square Dr,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Unit 110,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Independence, OH 44131](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** [Teams Link ](https://teams.microsoft.com/l/meetup-join/19%3ameeting_N2Q3ODVjM2YtNDQ1NS00MDBjLWI5MzYtNDQ3YmFlZjkzMjAx%40thread.v2/0?context=%7b%22Tid%22%3a%22b966f302-6b93-4686-9041-c084635642c5%22%2c%22Oid%22%3a%2278c760cb-657f-46aa-bd2f-7066d9403bdb%22%7d)if anyone needs it after RSVP-ing for in person. If you would like to subscribe to our email list outside of Meetup, we have changed platforms recently and you will need to register [here in Kit ](https://ohio-north-data-training.kit.com/b8f036f615)instead to receive emails. Agenda: **5:00 PM EST**: Online and in-person meeting begins with a social hour. This is an unstructured hour where you can join us to catch up and meet other group members before the session starts. There will be food brought in for in-person attendees. **6:00 PM EST**: Updates and announcements, followed by our feature presentation. See below for presentation details. **7:30 PM EST**: Optionally after the main presentations, the in-person crowd may go out for snacks and drinks at a local establishment. We hope to see you there! Session Abstract **Data on Fire: A Hands-On Intro to Spark in Fabric** Curious about Apache Spark but not sure where to start? This hands-on session introduces you to Spark in Microsoft Fabric Notebooks—a powerful and accessible way to process and analyze big data using familiar tools in the Microsoft ecosystem. We’ll break down key Spark concepts like distributed computing, DataFrames, and lazy evaluation, then show how they come to life inside Fabric’s notebook experience. You’ll see practical demos that cover loading, transforming, and analyzing large datasets—while leveraging Fabric’s modern data stack, including OneLake, Dataflows, and Pipelines. You’ll also learn how to choose between Spark and pure Python notebooks in Fabric, based on execution needs, data integration, and use case fit. Whether you're a SQL pro, BI developer, or data engineer, this session will give you the tools and confidence to start using Spark in your own projects—no cluster management required. \*Please note, that we will be using Microsoft Teams for the online portion of this meeting. You may want to join a few minutes early to ensure you do not have any issues. If you are attending in person, there are large TVs at the office, and you do not need to bring a laptop or use Teams.

This is an in-person meeting. At this meeting you will get answers to depression and anxiety. Find out the source of them and how to get rid of them. Did you know that unwanted emotions like anxiety, depression, unhappiness, loneliness, hopelessness, anger, fear, or feelings of irritation don’t just fall on you for no reason. They are not random occurrences that simply happen to people's minds. They are definitely not due to a chemical imbalance in your brain from some nebulous chemical reaction "by chance". Your negative emotions are the symptoms of the painful experiences that you have which are not healed, and which are still affecting you. The effects of these painful experiences are exacerbated by the pressures or difficulties of the other problems in your life. Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Hubbard Dianetics Foundation of Central Ohio and Church of Scientology of Central Ohio.