Red Hat

*Talk by Claes Worm* `tatr` is a new tool written in OCaml for recursively traversing file-hierarchies and finding all indented trees of text that match your queries. Its design tries to be simple, powerful, elegant and general. A common action on the CLI is to search for all the files within some directory that contain a specific regular expression - e.g. using a mix of `find` and `grep` or tools that do both like `ripgrep`. These tools only match on lines, not on “sets of lines” or “related lines” or “trees of indented text” - `tatr` does this and filters the trees to only show the parts you are interested in. What formats can you query? Anything that contains lines of text that are related to each-other based on indentation. E.g.: * bullet-point based notes like markdown, wiki, org-mode or plain text * notes with *tags* * code that contains comments * structured configuration-formats like json, sexp, etc. When used with your notes; you suddenly get the opportunity to not only structure your notes by linking pages in a graph or tree - but also by tagging and logically relating “verbal arguments” via indentation. [https://github.com/rand00/tatr](https://github.com/rand00/tatr) [https://r7p5.earth](https://r7p5.earth) *As usual, there's mingling at the local bar after the talk.*

Join us in the next AZUG meetup and learn how to tune your cloud database. **Hands‑on tutorial on Azure Database for PostgreSQL Flexible Server parameter tuning** PostgreSQL exposes hundreds of configuration parameters, but only a few dozen truly determine performance and resource efficiency. Tuning them correctly is notoriously difficult due to complex interactions and workload‑specific behavior. Traditional approaches—manual tuning or generic rule‑based tools—often fall short. In this practical workshop, participants will learn the fundamentals of server parameter tuning and get hands‑on experience using heuristics‑based open‑source tools such as PGtune to achieve meaningful performance improvements. We'll explore which parameters matter most, how PGtune's heuristics work, and why they influence performance. The session concludes with an introduction to DBtune Community Edition , an AI‑powered agentic tuning engine that blends heuristic rules with modern AI and ML techniques to deliver smarter, workload‑aware optimization. **Prerequisites: Bring your own laptop with a command‑line shell (eg, PowerShell).** If you are using a company laptop, please whitelist \*\* [http://app.dbtune.com%2A%2A./]app.dbtune.com\*\*. **About our Speaker:** Dr. Luigi Nardi is the founder and CEO of DBtune, a leading company driving advancements in AI, database systems, and cloud computing. Previously an associate professor of AI at Lund University and a research staff at Stanford University, Luigi's expertise centers around Bayesian methods and optimization theory and practice. Luigi's journey includes a post-doctoral position at Imperial College London and a role as a software engineer at Murex, following his Ph.D. program in applied mathematics at Université Pierre et Marie Curie in Paris in 2011. Luigi is a public speaker and prolific researcher, having co-authored more than 50 peer-reviewed papers at leading venues in machine learning and computer science. **Sponsors:** https://www.dewise.com/ https://codenode.dk/

Dear Scrum Masters Kim and Christian are signoff as meetup organizers, we like to say a proper goodbye to as many of you as possible at this dinner May 26th. Please refer to our LinkedIn for more details We like to see how many will signup before we find the venue. Please sign up her and expect great conversations with fellow Scrum Masters with a cost of 365 DKKR incl beverages. We will dine at Food Club Rådhuspladsen. It has a wide range of food that hopefully suit everybody It has a cost of 365 DKKR. Please deposit 365 at MobilePay : Box 3016CB. When you are signed up here meeting and have contributed to the MobilePay before May 19, you will participate 😊 If you for some reason cant make it. Please decide before May 19th and you will get you money back. After that We cant change number of dinner participants. Contact me or Kim if that is the case

We are a group of people meeting on Tuesdays to socialize around cooking and eating together. Usually around 40-50 people. Many are international students, but also other people join. The foodclub exist independent of Meetup, we invite you because we have room for a few more people. The food is vegan and made from donated leftover veggies from a local greengrocery. The place has originally hosted leftwing activist groups, and many of the people joining are also involved in political groups. If you want to join for chopping and cooking, we will be doing that from 3 to 6 pm. It is possible to join part of the time. From 6:30 to 8pm we are serving food. Donation around 30 kroner. If you are helping out some hours, chopping, cooking or cleaning, you can eat for free. From 8 to 9 - 9:30 pm we are cleaning up the place. We hope to see you in our lovely foodclub <3

Fulfillment. Joy. – Do you know what it is? Do you feel it now? Many of us are living lives that have “just sort of happened”. We had a dream, a vision (maybe we still do) for what we wanted our lives to look like. Somewhere along the way, life took over and something else ended up happening. We made decisions, took a turn down a path, and now our life isn’t what we thought it would be. Or we’re living someone else’s life. Maybe it’s what our parent’s wanted for us. What we believe our partner or a potential partner might want. Or maybe it’s what we believe we need to do and have to be happy. I was one of these people. My life checked all the boxes for what I thought I needed in order to be happy. And still, I wasn’t. Join me for a coffee talk on what it means to live a Life By Design. Where your choices are deliberate and based on your authentic, true self. What you have to let go off to achieve this (hint: the notion that vulnerability is a weakness and feelings of fear and guilt) and who you will become in the process.

Join us for an inspiring session exploring the frontier of "constructive" democratic technology. As traditional mechanisms for citizen engagement struggle against polarization and an algorithm-driven attention economy, how can we build digital public infrastructure that actually brings people together? Digital deliberation provides a new framework for our democracy. Rather than focusing on division, these tools allow us to map underlying consensus and foster collective sense-making across society. In this meetup, we move beyond abstract theory to explore the practical ways the Finnish Innovation Fund (Sitra) has successfully deployed citizen participation at scale, and look ahead to the new European Civic Tech Hub. We will dive into: * **The Power of "Voxit":** How Finland successfully scaled this open-source platform across more than 120 societal dialogues, utilizing AI and statistical clustering to map "Uncommon Ground" and find consensus. * **From National Labs to European Impact:** Insights from massive citizen dialogues—such as the "What do you think about AI, Finland?" campaign—and how they directly shape public sector rulebooks. * **The European Civic Tech Hub:** How the ongoing work to build a centralized hub under the European Commission's *European Democracy Shield* aims to solve the biggest bottlenecks in civic tech adoption, from procurement to GDPR compliance. **About the Speaker & Moderator:** **Sanna-Kaisa Saloranta (Speaker)** is a Specialist and Democracy Team Lead at Sitra's International Programmes. She leads efforts to scale democratic innovations that support collective sense-making, actively working to bridge the gap between Finnish open-source success and the wider European digital ecosystem. **Michael Jensen (Moderator)**, Co-founder of DemAI, will host the session and guide the conversation, drawing on his expertise in democratic AI to bridge the themes of the presentation with our audience's questions. Come prepared for a constructive dialogue on how we can learn from these approaches to build a more transparent, resilient, and connected democratic future in Europe. We look forward to seeing you there!

Join us for an hour of writing! We’ve discovered that it’s strikingly helpful to write with other writers. See if it’s true for you at our Copenhagen Shut Up & Write! sessions. Be it a book, blog, script, essay, dissertation, résumé, melody, poem, or just plain work stuff, you are invited to write it with us. No one will see what you've written or give you unsolicited advice. Instead of just thinking about writing, come and get some real writing done. SCHEDULE: - 15 minutes of hellos and getting settled; maybe some quick intros. - Then, the timer starts! : writing for 1 hour. - After the hour is up... chat / take off / keep writing, if you're on a roll. OPTIONAL SOCIALIZING happens once the hour of writing is complete. Writing can be very solitary... connecting (and sometimes even commiserating) with other writers is a cool thing. It's best to be on time, but BEING LATE IS ALSO OKAY: just show up and get settled, then check in with us after the session. (We’ll be the ones with the small Shut Up & Write! sign.) If you were on time, please be willing to make room for the friendly latecomer. What Should I Bring? Whatever you need to be able to write! Bring earbuds/earplugs if you want to block the cafe’s overhead music or the occasional conversation by other patrons.

We are looking much forward to welcome you to Rust meetup #68! This month's meetup will be hosted by Microsoft. Microsoft are located at: Kanalvej 7, 2800 Kongens Lyngby As usual, RSVPs open a week before the meetup. The agenda for the night is outlined below: \- 18:05\-18:15: Welcome \- 18:15\-19:00: Mossa: **THE RUSTY ROAD TO EPIDEMIOLOGY** \- 19:00\-19:50: Food Break\, Sponsored by Microsoft \- 19:50\-20:35: Game Show 2 \- 20:35\-20:50: Raffle \- 20:50\-21:00: Clean Up\, Leave \- 21:00 \- ???: Bar Make sure to bring your best energy for a cozy evening in great with other Rust enthusiasts, professionals and amateurs alike. Let's Rust up! 🦀

Join us for another evening of deep dives into data engineering! This time, we are hosted by **[Heyra](https://heyra.io/)** for two talks that explore the practical side of the "Agentic" shift in data workflows and the high-performance internals of data transfer with Apache Arrow. As always, there will be food, drinks, and plenty of time to network with fellow data engineers in the Copenhagen community. Based on the style of your previous events and the details provided, here is a draft for the upcoming **Agentic data engineering, beyond the hype** *Kilian Tscherny, Lead Data Engineer @ Heyra* Data engineering is changing fast, and the teams getting ahead are the ones rebuilding their workflow around agents instead of just bolting them on. In this talk, Kilian will cover how the team at Heyra has adapted to this shift, sharing real-world examples of how agentic workflows can move beyond the hype to provide actual architectural value. **Taking Flight: Zero-Copy Data Transfer at Scale with Apache Arrow Flight and Friends** *Anders Bogsnes,* *Head of Investments & Trading Engineering @ Nordea Asset Management* We all love Apache Arrow in our DataFrames and DuckDBs - but have you considered how the data is ending up on your machine? Arrow Flight and friends was designed as a way of enabling end-to-end native Arrow communication and in this talk we will go through the motivations behind the Arrow Flight protocol, introduce some of the derived protocols, and we end by building an Arrow Flight server from scratch and demonstrating how to interact with that server from a client. **Agenda** * **18:00:** Doors Open & Networking * **18:20:** Welcome from Copenhagen Data Engineering & Heyra * **18:30:** Agentic data engineering, beyond the hype – Kilian Tscherny * **19:00:** Food, Drinks & Networking * **19:30:** Taking Flight: Zero-Copy Data Transfer at Scale – Anders Bogsnes * **20:00:** Networking & More Drinks

Speak to Lead Toastmasters helps people to improve their public speaking and leadership skills in a supportive and fun environment. No matter what your age, background, and level of confidence are, it is a place for you. If you are scared as hell of public speaking, then you should definitely come! If you are new to our club and would like to attend one of our club meetings, go to our [website](https://sites.google.com/view/speaktoleadtoastmasters) or [Facebook](https://www.facebook.com/SpeaktoLeadToastmasters) / [LinkedIn](https://www.linkedin.com/company/speak-to-lead-toastmasters-copenhagen/) / [Instagram](https://www.instagram.com/speaktolead.toastmasters/) pages for our current updates, send us a message on Messenger and see how our previous meetings have been. Email: speaktolead.membership@toastmasters.dk if you have any questions. Guests are welcome, ​and it is for free as a guest. If you find it interesting, you can later sign up as a member by paying a small monthly fee (non-profit). As a member, you will get access to online educational programs and manuals, will be able to give speeches, take on different roles, participate in contests and international conferences as well as befriend lots of cool people. We meet on Wednesdays from 18:00 at: **Kulturstationen Vanløse, Jernbane Allé 38, 2720 Vanløse.** The room​ is on the first floor. How to get there: 1\. Once you exit the Vanløse station turn 2\. towards the Burger King & Netto\, then 3\. On the left side is a white building with an elevator and staircase 4\. Go up to the first floor and use your CPR card to get in 5\. You will see the room with a Toastmasters sign Please note that the meeting is in English. In addition, the number of attendees on Meetup is not a representation of the number of people at the event. We are looking forward to​ seeing you!

Hej! Copenhagen’s not just cozy — it’s cosmopolitan too. [[[Click this whatsapp groupchat link to join us](https://chat.whatsapp.com/ITxd1esbSuyJuVVZ1wkEXS)]] Our Saturday 7:30 PM meetups gather 20–30-somethings who love international connections. Expect warm vibes, open minds, and a seat at the table for everyone. Come join the city’s most hyggeligt hangout. join us!!

**𝗗𝗘𝗔𝗥 𝗪𝗢𝗥𝗟𝗗 – the international week-breaker** Your favorite after-work/after-uni bar night to connect, relax, and meet amazing people at ease. for context (as frequently asked): ***\- we are always many more people than sign up here on meetup as most traffic and updates happen on IG*** ***\- average age range is from 20\-30 \(everyone is welcome\)*** Yet another amazing year of Dear World the way we know it - together! At Bodega, we stocked up on board games to get cozy and competitive while social of course. 📸 IG @dearworldcph (for impressions from past events!) As the days are colder and shorter, we’re bringing the energy to our nights – with over 100+ at our bar nights and 200+ at our parties, 𝗗𝗘𝗔𝗥 𝗪𝗢𝗥𝗟𝗗 keeps growing! For almost 2 years now, we’ve been uniting Copenhagen’s international crowd (and locals) – countless nationalities, shining in different languages 🌍 Think easy-going conversation starters like flags, rotating chat charms & playful questions – all designed to spark great chats and eliminate any awkwardness. 📍 BODEGA DANZA, Flæsketorvet 13A, 1711 Copenhagen 🕖 When: starting at 19:00 (hosts & stickers until 22:00, the night continues however long you like) Let’s raise a glass, meet familiar and new faces, and break the week – together 🥂 𝗗𝗘𝗔𝗥 𝗪𝗢𝗥𝗟𝗗 The space for internationals and open-minded locals to connect in Copenhagen. Whether you’re looking to socialize, network, make friends, or simply vibe – just show up. Come solo or bring your crew – we’ve got you. Got questions? DM us on Instagram @dearworldcph or reach out to the host here. Let’s make Wednesdays the new favorite day of the week 🌇

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

Click Here For More Videos: https://www.facebook.com/share/r/17bwkttXhV/ *********************************** Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa. These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all. Swerve Dance & Fitness Complex 640 Lakeview Plaza Blvd A, Worthington, OH 43085 Bachata 7pm-8pm Salsa 8pm-9pm $15 - One Lesson $20 - Both Lessons

**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** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

Do you sometimes feel like you do well in life then something happens and you slide back, never quite getting ahead. At this Meetup you'll find out how to identify what actually causes the lows, the highs and everything in between. More importantly you’ll get the secret of how to gain control over your life so the highs are higher and the lows go away. Wouldn’t it be nice to stop the wild roller coaster ride for good? Or at least make it a fun roller coaster ride, with more ups and downs. There is a hidden factor that will be going over and you’re going to be quite surprised what it is and how much it affects your life. Be sure to click on the red "Attend" button below to come to the event. We look forward to seeing you there. This group is hosted at the Dianetics and Scientology Life Improvement Center.

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd 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 speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Do you feel introverted when you are in a group setting? Are you shy? Do other people have more fun than you do? There are simple life hacks you can use to improve your connection to others and improve your social life. Talking is one thing. Truly connecting is altogether another. It's the whole experience of connecting with people and forming relationships. It includes the joy, understanding, and love formed among people. * In our meetings, you will learn: * A simple life hack to increase your liking and tolerance of other people, or even of yourself! * How to become more interested and enjoy conversations with people. * How to be comfortable in social settings. * How to be yourself * How to become more extroverted and, * How to make connections with people. Feeling lonely, isolated, or bored? This local meeting is exactly what you need! Come join us! Be sure to click on the red "Attend" button below to come to the local event. We look forward to seeing you there. This group is created by the Dianetics and Scientology life improvement center.

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!