GNU Linux

**We're back at Salisbury House for our summer London Airflow Meetup! Join fellow members of the data engineering community for an evening of engaging talks, great food and drinks, and exclusive swag!** **PRESENTATIONS** ***Talk #1: The Orchestration Layer: A Blueprint for Scaling Dynamic DAGs with Integrated Data Quality Gates*** * **Speaker**: [Vasudev Maduri](https://www.linkedin.com/in/vasudevmaduri/), Staff Data Engineer, Admiral Group Plc Ensuring high-quality data, accuracy, completeness, and schema validity is essential for building data trust. However, scaling data quality checks across diverse datasets often leads to duplicated boilerplate Python code, human error, and a massive bottleneck for Data Engineering teams. In this talk, we’ll explore how to shift data quality from a backlog of tech debt into an automated, self-serve developer experience directly tied to Airflow. We will demonstrate how to build a multi-faceted data observability framework that empowers end-user teams to define their own DQ rules without writing any Python code. By hiding complex Airflow code, users simply select their parameters—YAML configurations that instantly translate into fully dynamic, end-to-end DAGs, including in-flight data quality gates. The core of this session focuses on the technical implementation of integrated DQ checks that live directly *inside* the generated pipelines. You’ll learn how this metadata-driven approach enables a "shift-left" strategy for data observability, automatically enforcing data contracts and routing alerts without manual engineering intervention. ***Talk #2: Self-healing Data Pipelines in Airflow*** * **Speaker**: [Nilesh Khandalkar](https://www.linkedin.com/in/nileshskhandalkar/), Senior Manager, Capgemini Modern data pipelines remain largely reactive—failures trigger alerts, manual retries, and ongoing operational overhead for engineering teams. As systems scale, this approach introduces fragility, delays, and growing complexity in maintaining reliable workflows. This session explores how to design self-healing data pipelines in Airflow using practical patterns such as intelligent retries, conditional branching, and targeted recovery mechanisms. Real-world failure scenarios are used to illustrate how pipelines can detect issues, trigger remediation steps, and resume execution without full restarts or human intervention. The session also looks ahead to how AI-assisted anomaly detection can further enhance these systems by identifying unexpected patterns and enabling more proactive, resilient data workflows. ***Talk #3: What We Got Right (and Wrong) Building a 50-Source Data Platform on Airflow*** * **Speaker**: [Arnaud Caldow](https://www.linkedin.com/in/arnaud-caldow-384423142/), Senior Data Engineer at Collibra Collibra helps enterprises govern their data, but how does Collibra's own data team manage the data that powers the business? The answer is an Airflow-based platform that stitches together dlt, dbt, Kubernetes and Collibra's own product for governance -- all orchestrated through 87 DAGs serving 12 business domains. This talk traces a data point's journey through the stack: from API extraction via dlt pipelines running inside KubernetesPodOperator pods, through a layered dbt architecture where platform engineers standardize data and analysts build business models on top, into analytics outputs that serve multiple business teams, and finally back into Collibra Data Governance via reverse-ETL integration DAGs. Along the way, I'll share the patterns that emerged from operating this at scale: how we evolved from one-off custom pipelines to a reproducible framework that's documented well enough for AI subagents (or a new hire) to generate models from scratch, how our own Pod Operators let us test feature branches on shared environments, and how we're leveraging that same mechanism to migrate from Redshift to BigQuery (and from Airflow 2 to Airflow 3) without downtime. Behind the scenes, a 1Password-backed pipeline diffs credential hashes nightly, catching rotations before they break a DAG. **AGENDA** * **5:30-6 PM:** Arrivals, networking, food & drinks * **6-7:45PM:** Presentations * **7:45-8PM:** Networking

**Join us on *Discord* to keep updated!** **[(Click me! Online Offline Discord)](https://discord.gg/uuwybw93kj)** Meetup with a group for a nice stroll in Battersea park! Bring a coffee.. or grab one in the parks café after! This event is weekly! Get out and about in Battersea park with new people! This isn't a strict walk - however it should be a scenic, fun and enjoyable walk for people of all ages, sizes & abilities! If you're looking for something more energetic have a look at some of our other group exercise activities!

**NOTE: PLEASE READ THE DESCRIPTION BELOW FOR REGISTRATION:** **OWASP AI Security Summit** is taking place at **Infosecurity Europe 2026** on **Thursday, 4 June 2026 at ExCeL London** **Location inside Excel:** South Gallery Rooms 18 & 19 This summit brings together security leaders, researchers, and enterprise practitioners to discuss the latest developments in GenAI and Agentic AI security — including emerging threats, governance, incident response, real-world implementation lessons, and the evolving OWASP guidance shaping the industry. Sample sessions include: • The State of GenAI: Key Trends and OWASP GenAI Security Project • Beyond the Top 10: The Next Chapter of the Agentic Security Initiative • Agentic Security at Microsoft: Strategy, Implementation, and Lessons Learned • Implementing the Agentic Top 10 at AWS • 22 Seconds to Contain: Rewriting IR for Agents • Top 10 for LLMs Update • No Room for Hype: Securing Agentic AI Inside a UK Bank Featured speakers and contributors include OWASP GenAI Security initiative leaders and experts from: Microsoft, AWS, Lloyds Banking Group, OWASP, Deep Cyber, Zenity, and more. **Location inside Excel:** South Gallery Rooms 18 & 19 **REGISTER TO ATTEND HERE** **Register for Infosecurity Europe to attend the summit -** use promo code **OWASP** for a free pass: [https://www.infosecurityeurope.com/en-gb/visit/owasp-gen-ai-security-summit.html](https://www.infosecurityeurope.com/en-gb/visit/owasp-gen-ai-security-summit.html)

Please join us for our weekly run and social - a great (free!) way to meet new people! We meet at 7pm outside The Horatia ( https://maps.app.goo.gl/p1QnyurFQh3gywov6) and head for the run together from there. You can leave a small bag or extra layer at the pub at your own risk. The winter route is around Highbury Fields and in the summer we do a loop to Clissold Park, both ending at the starting point- the Horatia pub. We run 5km at an easy pace (about 6-7 mins per km), with some people going faster and some slower. After the run, we will head to the Horatia pub for some drinks (alcoholic and soft are fine- no judgment!).

**Fabric Data Warehouse with Tino Tereshko** For our June meetup, we’re excited to welcome Tino Tereshko, Partner Director of Product at Microsoft, responsible for Fabric Data Warehouse. Having previously spent several years at Google working on BigQuery, Tino later co-founded MotherDuck — the DuckDB-based SaaS analytics platform — before joining Microsoft to lead Fabric Data Warehouse. It’s fair to say Tino knows a thing or two about modern analytical databases. Tino is visiting from Seattle and has kindly offered his time to present at our London user group. The session will include an introduction to Fabric Data Warehouse, an overview of recent developments and future direction, followed by an open “Ask Me Anything” discussion where attendees can quiz Tino on all things data warehousing, Fabric, and analytics. **Agenda** 18:30 - Welcome, drinks, pizza & networking 19:00 - Main Session 20:30 - Close **Venue** Tenth Revolution offices in London. Aldgate House, 33 Aldgate High St, London EC3N 1DL Please provide your first and last name when registering for the event, as this is provided to building security to allow you entrance into the venue.

Black Stars in Dim Carcosa is the definitive Necronomicon field notes, the bridge between the book’s messy legend and the step-by-step reality of practice. It begins with the strange, contested history of the Simon Necronomicon and the postmodern blend of Mesopotamian magick and Lovecraftian literary myth it helped unleash, then poses a blunt question: what does the grimoire actually teach, and what changes when you put it into practice with discipline? At its core, this book offers a clear analysis of the Seven Gates and their operating logic, followed by step-by-step gatewalking practice, with practical attention to the Zonei, the Watcher and the Elder Signs, Marduk’s Fifty Names as operative keys, and the liminal cartography GANZIR and the Mauve Zone. From there, it opens a second, parallel approach to Mythos-inspired magick through a repeatable Lost Carcosa visionary praxis, circling Hastur and the King in Yellow with an emphasis on integration. Along the way, it treats dread as an epistemology and tangential tantrums as usable data, those sideways eruptions that can mark real contact, real risk, and real initiation

**Beginner Friendly Football** A friendly football game in Regents Park. Equipment such as balls, goals and bibs will be provided. **Mixed Gender Games** We usually have 1 or 2 mixed gender games going on where we are strict in our aim in getting equal numbers and men and women. If you did not bring a woman, expect to be in a men's only open community game. **Can't put yourself down as attending or on the waitlist?** Our football games are usually oversubscribed for men and so we only guarantee places for: **1\. Those who are able to bring a woman or non binary player** Please message the organiser if you can are interested in attending and can bring a woman player. We encourage couples in particular as it's a great activity for you to do together. **2\. Those who donate to our supported charity** We also currently offer 3 special invitations per event for those who are happy to donate a minimum of £5 to our supported charity. We would like our events to raise awareness and money for worthwhile charities. For more info, please visit: [https://www.justgiving.com/page/social-sports-mix-warchild](https://www.justgiving.com/page/social-sports-mix-warchild) Please get in touch with the organiser if you're interested in a charity place. **How it works** We meet at the venue to organise teams and for everyone to get to know each other. Here is where we meet: [https://www.socialsportsmix.co.uk/regents-park-football-and-rounders](https://www.socialsportsmix.co.uk/regents-park-football-and-rounders) This is a friendly game, no hard tackles or aggression! We will play for 60-90 minutes depending on how we all feel. You can leave early if you need to. If there is no Goalkeepers, players who are willing to go in goal will rotate every 8 mins. We recommend you bring shinpads and water. Here are our Terms and conditions [http://www.socialsportsmix.co.uk/terms-and-conditions](http://www.socialsportsmix.co.uk/terms-and-conditions)

PyData London 2026 brings together data scientists, engineers, and researchers from around the world for three days of insightful talks, tutorials, and community connection. Hosted in one of Europe’s leading tech hubs, the event highlights the latest developments in Python, machine learning, and data science. Attendees can expect a mix of cutting-edge research, real-world applications, and opportunities to network with industry leaders. Whether you're a beginner or an expert, PyData London offers something for every level of the data science community. **THIS IS NOT A TICKET- TICKETS MUST BE PURCHASED ON CONFERENCE WEBSITE.** https://pydata.org/london2026

**Beginner friendly mixed football** A friendly mixed gender football game in Regents Park. Equipment such as balls, goals and bibs will be provided. You will have the choice of playing in a beginner friendly or intermediate level game. We aim to have roughly equal numbers of men and women for each game. This is the **Womens Signup Page**. Please check the [meetup page](https://www.meetup.com/socialsportsmix/) for the Mens Sign up Page. We also welcome non-binary and other genders to join us. **About Social Sports Mix** Social Sports Mix is for anyone interested in playing mixed gender sports and meeting new people in London. This event happens every Sunday throughout the Summer. You can join our events as an individual or with friends. There is no commitment to come weekly required and we welcome beginners. **How it works** We meet at the venue to organise teams and for everyone to get to know each other. Here is where we meet: [https://www.socialsportsmix.co.uk/regents-park-football-and-rounders](https://www.socialsportsmix.co.uk/regents-park-football-and-rounders) This is a friendly game with no hard tackles or aggression! We will play for 60-90 minutes depending on how we all feel and there will be a half time. There is no pressure to stay for the entire event and you can leave early if you need to. If there is no Goalkeepers, players who are willing to go in goal will rotate every 8 mins. We recommend you bring shinpads and water. We usually go for drinks in the pub or have a picnic in the park after. **Free or play for charity** Our Sunday football events are free for everyone. The organisers volunteer their time and fund for the equipment, public liability insurance, marketing and meetup costs to make this happen. We would like our events to raise awareness and money for worthwhile charities. If you appreciate our events, please consider making a donation on our fundraising page. To donate and for more info, please visit: [https://www.justgiving.com/page/social-sports-mix-warchild](https://www.justgiving.com/page/social-sports-mix-warchild) Here are our Terms and conditions [http://www.socialsportsmix.co.uk/terms-and-conditions](http://www.socialsportsmix.co.uk/terms-and-conditions)

We will be playing Rounders in Hyde Park. Equipment is provided. However, please bring a bat and ball if you have them. Min attendance: 11 If the min attendance isnt met the event will be cancelled. See you there.

**This month’s book: 1984** For information on the meetup location, please join the WhatsApp group! 🗺️ **Important**: Please only select attending if you have read the book (or will haveve finished it by the event date), and are part of the Bookclub Whatsapp Group- otherwise you will be removed from the attendee list!☝🏼 Interested in reading and discussing more literature that explores thought-provoking themes? Keen to try out more classics, books that have philosophical themes, or books that explore the human condition or question the meaning of life, the universe and everything? 🌍 Our book club aims to get together like-minded autistic individuals **from the original Adults on the Spectrum group** to do just that! Please note that you must be a member of the original group to join this group! 💫 Each time a new book is chosen, it will be advertised on the main group. This is so that existing members of the book club can either join or choose not to join, and gives the opportunity for others to join who might be interested! 🤓 Meetups will be held centrally in a quiet location such as a cafe that can accomodate the group’s size. 📍 If you are interested in joining this month’s book club, please RSVP if you’re already in the WhatsApp group or message me on WhatsApp so I can add you! 📬

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

**💥 Join us THIS Saturday and EVERY Saturday!** **💥 At Columbus’ Hottest New Salsa Venue!** **.** Lincoln Street Salsa THIS Saturday and EVERY Saturday! 8 pm – 1 am **.** **💥 Gorgeously Renovated Studio!** **💥 Free Parking!** **💥 BYOB!** **💥 Easy Access from Highway!** **.** Lincoln Street Salsa 1717 Brice Rd Reynoldsburg, Ohio 43215 **.** **ENTRANCE IS ON THE NORTH SIDE OF THE BUILDING** **Behind Anthony’s Pharmacy!** **.** **PLEASE SHARE and help get the word out!** **.** **🟣 Salsa, Bachata, and Merengue Dancing!** **.** **🟣** 8:00 pm – 8:30 pm **𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻** **.** **🟣** 8:30 pm – 9:30 pm **𝗕𝗲𝗴𝗶𝗻𝗻𝗲𝗿 𝗗𝗮𝗻𝗰𝗲 Class!** **.** **🟣** 9:30 pm – 1 am **𝗢𝗽𝗲𝗻 𝗗𝗮𝗻𝗰𝗲 𝗣𝗮𝗿𝘁𝘆!** **.** **✅ Questions?** **Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/)** Or Text Todd: 614-774-8146 **.** **✅ No Experience Necessary!** **✅ No Partner Required!** **✅ Plenty of People to Dance With!** **.** **✅ $15 Cash / $16 Card** **✅ College Students $5 Off with Valid ID!** **✅ BYOB** **✅ Age 18+** **.** **✅ Lincoln Street Salsa is the perfect place for…** **.** **👉 Learning to Dance** **👉** Social Dancing **👉 Birthday Celebration** **👉** Bachelorette Parties **👉 Girl’s Night Out** **👉 Date Night** **👉** Getting Fit / Burning Calories **👉 Meeting New People** **👉** Having Fun, Fun, Fun! **.** ✅ **Questions?** Visit [LincolnStreetSalsa.com](https://columbussalsadancing.com/ "https://columbussalsadancing.com/") Or Text Todd: 614-774-8146 .

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. So please RSVP for a head count!

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

We are going to build together with all the CLIs! E will be doing it at Columbus Code and Coffee Agenda --- Hosted By James Power, Organizer Pete Gordon, Organizer Just a Software Guy in the age of the Internet. Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-columbus-presents-ai-improv-lets-build-a-game-together-with-claude-code-codex-and-gemini-and-be-the-judge/.