Open Source

We're excited to announce that the next PyData Helsinki meetup will be hosted by **Elisa** on Thursday, 19 March 2026! **Important:** Because of venue security requirements, we have to ask you to provide your real name that staff can verify from an ID card on you. Here's the night's lineup: * 17:00 Doors open * 17:30 **PyData Helsinki intro** * 17:35 [Nina Marila](https://www.linkedin.com/in/nina-marila/): **Data & AI at Elisa** * 17:55 [Esko Heinonen](https://www.linkedin.com/in/esko-heinonen/): **Optimization problems in electricity markets** * 18:25 Break 🍕 * 19:00 **PyData Helsinki Quiz** 🔮 * 19:20 [Eero Lihavainen](https://www.linkedin.com/in/eero-lihavainen-b1606a121/): **How fast can you read data from Delta Lake without a cluster?** * 19:50 [Udit Asopa](https://www.linkedin.com/in/uditasopa/): **⚡️ Goodbye argparse, Hello Typer** * 20:00 [Sardana Ivanova](https://sardana.codes/): **⚡️ Teaching AI to Write Poetry in Three Languages: Fine-Tuning mBART for a Museum Exhibit** * 20:10 End of programme / networking

Finland Azure User Group is hosting **a free Azure learning event** at the Microsoft House in Espoo! Everyone is welcome regardless of your level of expertise in Azure, and our talks range from levels 100 to 300. We have an all-star cast of speakers across different areas of Azure specializations! You won't want to miss this! **Agenda:** • **12:00-12:35** Opening ([Sakari Nahi](https://www.linkedin.com/in/sakarinahi/)) • **12:40-13:15** Data ([Vesa Tikkanen](https://www.linkedin.com/in/vesatikkanen/)) • **13:25-14:00** App ([Jouni Heikniemi](https://www.linkedin.com/in/jouniheikniemi/)) • **14:00-14:30** Break & Snacks • **14:30-15:05** Infra ([Jukka Koskelin](https://www.linkedin.com/in/jukka-koskelin/)) • **15:15-15:50** Security ([Jussi Roine](https://www.linkedin.com/in/jroine/)) • **15:50-16:30** Q&A Panel

Full Circle is a community of practice where mental health and wellbeing professionals come together to learn, share, and grow. ​If you’re a mental health or wellbeing practitioner who thrives on shared wisdom and community, Full Circle offers a space where you can connect, grow, and bring fresh insights back into your client work. ​**Full Circle is for professionals who work with clients in mental health or wellbeing** (e.g. psychotherapists, counsellors, art therapists, coaches, and others integrating mind–body approaches) . ​A community of practice is a space where we come together as professionals to share our experiences, challenges, and insights, not to be taught, but to learn from each other. Full Circle is about connection, not workshops. It’s a circle of peers, not a classroom. ​**By registering for this event, you agree to stand by our shared principles:** * ​Confidentiality: What is shared in the circle stays in the circle. * ​Presence: We give our full attention to each other, listening deeply. * ​Respect: Every voice matters; we value different perspectives and approaches. * ​Curiosity: We come to explore, not to give definitive answers. * ​Contribution: Everyone is encouraged to share practices, cases, and reflections. * ​Commitment: We show up consistently, knowing the community grows through regular participation. ​**How our gatherings work**: ​We gather **once a month** in person, and every time we move through the same process: * ​*Check-in*: We begin by going around the circle, with each person sharing what’s present for them in the moment. * ​*Shared practice*: One member of the community leads the group through a method, exercise, or embodied practice from their own field. Everyone experiences it first-hand. * ​*Integration dialogue*: Together, we explore what the practice brought up and how it might be woven into our client work. * ​*Check-out*: Each person shares one insight they will carry with them.

What does it mean to *know* something? We often say things like “I know this is true,” but philosophy asks a deeper question: what separates knowledge from mere belief? If someone believes something that happens to be true, is that already knowledge — or is something more required? In this meetup we will explore some of the central questions of **epistemology**, the philosophical study of knowledge: * What is the difference between **belief**, **truth**, and **knowledge**? * Do we need **justification** in order to know something? * Can we ever be certain about anything? * Could we be radically mistaken about the world — dreaming, deceived, or living in a perfect illusion? * Is it possible that **knowledge itself might be impossible**? Philosophical skepticism raises the unsettling possibility that we might never truly know anything at all. If all our beliefs could in principle be mistaken, what would count as genuine knowledge? We may also briefly discuss famous philosophical puzzles, such as the **Gettier problem**, which challenges the traditional definition of knowledge as *justified true belief*. No prior knowledge of philosophy is required. The goal is not to reach final answers but to explore the problem together through open discussion. Bring your curiosity — and perhaps a few things you think you know. **Description by ChatGPT**

Learning Finnish in Finland can be difficult because Finns tend to switch to English. That is one of the reasons people like our Finnish language café: you get to practice Finnish with Finns :) The events are completely free and there is always a native speaker to facilitate the conversation and to help find the right words. The coffee is good too ☕😋🇦🇹 Tervetuloa! When? ⏰ Usually Tuesday to Friday from 15:00 - 16:00 Where? 📍 In a cozy Viennese coffee house: The Good Coffee Company, Eerikinkatu 33, Helsinki The Good Coffee Company A Taste of Vienna 🇦🇹 Eerikinkatu 33, 00180 Helsinki Please visit our Facebook page for updates and changes: https://www.facebook.com/TheGoodCoffeeCompany/events

Here’s an opportunity to learn Swedish over a good cup of coffee or tea ☕😋🇦🇹 for free! The events are free and there is always a native speaker to facilitate the conversation and to help find the right words. In addition, we offer free (yes, free) coffee, tea, and biscuits to participants! På svenska, men på olika sätt Att prata med folk på café kan vara både nöje och utmaning. Hos oss serverar vi kaffe med mycket glädje och inspiration. Tillsammans lyssnar, pratar, läser, berättar eller skriver vi nyfiket och glatt oavsett om du har den finlandssvenska kulturen redan i blodet eller vill bekanta dig med den. Vi erbjuder deltagarna gratis kaffe eller te med lite tilltugg. When? ⏰ Usually Thursdays at 16:00 Where? 📍 In a cozy Viennese café: The Good Coffee Company, Eerikinkatu 33, Helsinki Välkommen! **The Good Coffee Company** **A Taste of Vienna 🇦🇹** Eerikinkatu 33, 00180 Helsinki Please visit our Facebook Page for updates and changes: **[https://www.facebook.com/TheGoodCoffeeCompany/events](https://www.facebook.com/TheGoodCoffeeCompany/events)**

What Guests Get: 🍝Italian 3-course dinner 🍷Wine/drink of choice 🕵️Game materials and plot guides 🎤Afterparty + karaoke You are invited to a private gathering of **La Tavola Segreta**, an elite Italian secret society that has protected the country’s greatest treasures for centuries. But tonight, something has gone wrong... During this immersive dinner experience, each participant will receive a **secret role** and pieces of information. As the evening unfolds, you’ll question others, exchange clues, and form alliances to uncover the truth. But be careful… not everyone at the table can be trusted. ### How the Experience Works Guests will receive a **secret character role** beforehand. Throughout the dinner, new clues will be revealed and players must work together (or against each other) to discover the truth. ### Event Details 📍 Location: Helsinki (exact address shared after registration) 📅 Date: 19 March ⏰ Time: 18:30-20:30 (afterparty 21-23) 🎟 Price: **€25** *** ### Dress Code Elegant, mysterious, or Italian-inspired outfits are welcome.

Welcome to join our Ren Xue Yuan Gong practice throughout the summer at Lapinlahden Lähde! The practice is simple but yet practical and powerful. It is easy to learn and will help you: -gain energy, feel less tired and stressed -more mental clarity, easier to concentrate -boost your immune system Time: Sundays 15:30 - 17:00 WHERE: Tallipääty, MIITTI office Lapinlahden Lähde Lapinlahdenpolku 8 00180 Helsinki About REN XUE Ren Xue is a comprehensive system for uplifting human life. It includes a unique form of Qigong (Yuan Qigong); three foundational theories (Theory of Qi, Theory of Consciousness, Theory of Totality) and a large body of teachings. It was created by world-renowned teacher and healer Yuan Tze who continues to offer online and in-person events worldwide. Ren Xue combines ancient Chinese wisdom traditions with modern insights into health and well-being. The goal of Ren Xue is to help individuals improve their physical, emotional, and mental health through a holistic approach that emphasizes the connection between the mind, body, and spirit. REN XUE FINLAND Ren Xue Finland (RXF) is the Finnish branch of the global movement, an organization dedicated to the promotion and teaching of Ren Xue and its associated practices, including Yuan Gong and Yuan Ming Medicine. It provides easy entry into the Ren Xue system through local in-person sessions, online courses and workshops/retreats. Other learning methods can be found here: Ren Xue TV, a YouTube channel and Learn Ren Xue website. More about Ren Xue: [https://www.renxueinternational.org](https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.renxueinternational.org%2F%3Ffbclid%3DIwZXh0bgNhZW0CMTAAAR06uJQRSC7BE3zhPePQ7X_KO7WXa60cr7NK25KdOqfbSIHpYqBLO3dYgVM_aem_alDR7a6KhbNhG3u9NhCUVA&h=AT18asmYaRkvHCJemaC7rr9GVu579uflDCg7T6mLNodWdtMVhuxwFhIyz0p5ONeJbm3WQ3ZGIwONIa0_pDvih4t9BCCJUBkjhK4BdIMEl4aQ_qPzR5ykW-aiOndhYDPeAW9_2_eWZaMsv889HKbp8_c&__tn__=q&c%5B0%5D=AT35KTjVjr2kCnYHrXXjXPxEGFK-RFbZnFVdDmWrTe5WwbSZZ5ulNxFEjPPhejS8Pf4xetwkU1hhM1P2K_ABugpnXL6w-CKE25ARXwtLSexv-4fPJ4s2_Kcqgj3g2XWjCVkPPgcjwrPoNWOvdKa2f1VqyVa-2kcTojodTS3wn9zrnRjZLcG7)/

Join us on **Fridays, 18:00 - 19:30** at **Lapinlahden Lähde** for a free session where we’ll explore the topic of the week. **After 19:30**, you're welcome to hang out with us. Depending on what the group decides, we sometimes: \- stay in\, enjoy tea and cookies and play board games \- go out for dinner \- Just engage in conversations ✅ Your **RSVP counts as your registration**, we expect you to **honour it**. 🤝 All conversations are confidential. What’s shared, stays in the group. 🌿 Small group, big heart: Everyone gets a chance to share. 🧘‍♀️ Come comfy, come curious. 💧 Bring water. Skip heavy meals & caffeine. 📍 **Tallipääty, Lapinlahdenpolku 8, Helsinki** (Through the gate, first door on the left!) **Kind reminder:** Last-minute cancellations or no-shows mean others miss out. To keep it fair, repeated cases may result in losing the spot in future sessions. If you want to be part of the MIITTI community, follow us on our other platforms: IG: [instagram.com/miitti1](http://instagram.com/miitti1) Facebook: [facebook.com/miitti1](http://facebook.com/miitti1) Web: [lapinlahdenlahde.fi/projekti/miitti](http://lapinlahdenlahde.fi/projekti/miitti) Whatsapp: Join our Whatsapp community network to join your favourite group and stay connected with the other members! When you participate in one of our groups or events, just ask the group facilitator to add you to the community!

THANK GOD IT'S FRIDAY! Welcome to pay a visit to BTCHEL HUB every Friday from 10am to 6pm, as we launch a new meetup concept: BTCHEL Fridays! BTCHEL Fridays is when the community hub has open doors for anyone to pay a visit, when the active Helsinki bitcoiner scene gathers together under one roof. The BTCHEL Hub is a versatile physical space for workshops, meetups, parties, movie nights, game nights and of course, co-working office where all the members are building together! Join us every friday at your convince! Coffee is on the house ☕️ You'll find us from google maps! Learn more about us from BTCHEL.com

Hello sporty population! Let's gather around and play some badminton together with people from around the world! IMPORTANT! Spots are limited, so make sure you reserver yours! If you are not registered on the list, you will be kindly asked to leave; this is to ensure fair access for everyone! **If you marked going and do not come, or you did not cancel your spot on time (1 day before), you will be suspended from participating for the next two sessions.** We will play in Talihalli Huopalahti from 11.00-12.30 Court numbers are 9, 10 and 11; you can come directly to the courts or meet us at the entrance a bit before 11.00. Please keep in mind that if you go directly to the courts, **do not enter them before our time starts!** MIITTI welcomes everyone to its events regardless of background or gender. You don't have to have any skills at all to come and play with us, and if you do, please come and coach us! Age limit: 16+ Event is free, but please bring your rackets and indoor shoes, or you can rent (racket) from the hall for 4€ each. After badminton, we'll enjoy Talihalli's sauna and maybe go to a local restaurant to grab some lunch after the game. Warm welcome! For questions and more information, please contact Alaa 040 5656096 If you want to be part of the MIITTI community, follow us on our other platforms: WhatsApp: Join our Whatsapp community network to join your favourite group and stay connected with the other members! When you participate in one of our groups or events, just ask the group facilitator to add you to the community! [Instagram](https://www.instagram.com/miitti1) [Facebook](https://www.facebook.com/miitti1) [Website](https://lapinlahdenlahde.fi/en/projekti/miitti)

Long week at work? The friday is here right about in its usual schedule! So what's better than Friday afterwork with some cool drinks, make new friends and meet old friends 😎 Join the crowd to tell your best comedic mishaps and gossips in a conversational fashion in Bar Loose (just next to Gate A21). The happy hour lasts until 20:00 (🍺beer / cider, 🍷wine 12cl 5.50€) and we have booked private area for our group to the right from the main entrance. We might head into restaurant, bar or nightclub later. We'll see. Hope to see you there! 🤗

IMPORTANT: Registration is not available through Meetup. The workshop size is limited and will be filled on a first-come, first-served basis, so you must purchase your ticket from our website in advance. Welcome. Sign up and get your ticket from here. [https://holvi.com/shop/UDUMBARA/section/pottery-wheel-workshops-keramiikka-kurssit/spring-2026-kevat/](https://holvi.com/shop/UDUMBARA/section/pottery-wheel-workshops-keramiikka-kurssit/spring-2026-kevat/) Join us for a challenging, fun, and relaxing time creating with local wild clay and socializing with friends. Udumbara Pottery Studio in Kallio, Helsinki, welcomes pottery students of all experience levels to come and enjoy pottery wheel lessons within a small group setting. Osaamme myös suomea, tervetuloa. Vi talar också svenska, välkommen.

【IMPORTANT SUMMARY】 * The purpose of social games is to know some people, do some exercise and enjoy the games together with others. Winning and getting points is not the focus of this session. Please play with consideration to your opponents' level. * Please purchase your slot through this link [https://7538e9.myshopify.com/](https://7538e9.myshopify.com/) 【SIGN-UP SYSTEM】 * Please sign up and pay through this link. [https://7538e9.myshopify.com/products/social-game](https://7538e9.myshopify.com/products/social-game) * We don't use the signup system on Meetup.com anymore. (Neither the waiting list) * It says this event is full on this meetup page, because I didn't open any slots here for you to sign up. You have to check this [sign-up page](https://7538e9.myshopify.com/products/social-game) to see if there is still a slot available there. * The background of using an external sign-up and payment system is because Meetup.com introduced a service fee to increase 21% of the fee in May 2023, and we want to reduce this cost. 【FEE and REFUND POLICY】 * Fee includes courts and plastic shuttles. Please sign up and pay before you come. NO refund if you do not cancel until 48 hours before the event. * Racket: bring one or rent one at the counter. * You can put a comment to sell your slot after the deadline of refund, or sell your slot in our whatsapp group. * No matter the reason is sickness, accident or anything, the group or I will not afford the cost caused by your absence. * Of course you CAN'T ask me, "Can I sign up for free for next week because I didn't come to use my slot this week?". Please remember, the court booked for you was there and it costs money. The court doesn't simply become "free of charge", just because you didn't come to use it. 【COMMUNICATION】 * Communication: our whatsapp group [https://chat.whatsapp.com/JJQbJlisbcj5YDnlcSu347](https://chat.whatsapp.com/JJQbJlisbcj5YDnlcSu347) * There are too many spams, so I only accept +358 number to join whatsapp group. Numbers from other countries will all be rejected. 【OTHERS】 * Please always keep 1 meter away from those courts where people are playing. Never step into the corners of other courts! If I see you do this, I probably will yell at you! * If you have some questions, you can put your questions in the comments on the event page. People will respond. * We play double games to 21 points. After each game, please let those who are waiting to play. Feel free to play with whoever you want, but please avoid playing with the same people all the time. * If you are new to badminton, please Google basic badminton rules in advance. Serve rules, double rules and point counting rules. You are always welcome to ask anyone in our group. Most of our members are more than happy to help you. * Badminton activity is organized for non-profit purpose, but I take a small fee for my work. * Want to restring your racket? I can do restring for you. €24 including the string. Please get contact with Ken. [https://drive.google.com/file/d/1XdBBBKBmsHqvMyI7t1MttqOxwX8rs7vQ/view?usp=sharing](https://drive.google.com/file/d/1XdBBBKBmsHqvMyI7t1MttqOxwX8rs7vQ/view?usp=sharing) * [https://www.meetup.com/Helsinki-Badminton-Meetup/](https://www.meetup.com/Helsinki-Badminton-Meetup/) * You want to pay with your sport card or voucher? check the bottom of the page. Click "read more" * https://www.meetup.com/Helsinki-Badminton-Meetup/[https://www.meetup.com/Helsinki-Badminton-Meetup/](https://www.meetup.com/Helsinki-Badminton-Meetup/)

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!

Main Library, Meeting Room 2B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

**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

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **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

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

Join Sacred Sound Alchemy Columbus for a transformative Sound Bath experience that will take you on a journey of self-discovery and healing. Immerse yourself in the powerful vibrations of various sound instruments like crystal singing bowls and rain drums, carefully orchestrated to balance your chakras and uplift your spirit. The soothing sounds will help you release negative energy, reduce stress, and promote deep relaxation. This event is perfect for those seeking a moment of tranquility and a chance to connect with their inner selves. Whether you are new to sound healing or a seasoned practitioner, you will benefit from the harmonious frequencies that will resonate with your body and soul. Come and allow yourself to be enveloped in a wave of healing energy, leaving you refreshed, rejuvenated, and ready for life's next chapter. Please bring something comfortable to lay on like a yoga mat. Being a pillow for your head or for under your knees and a blanket to cover over yourou. The library can get cold. Bring some water to help flush your body for after the session.