Hyperledger Fabric

Calling all board game enthusiasts in Prague! Join us for an exciting evening of fun and games at Sophie's Hostel! Whether you're a seasoned strategist or just looking for a casual night of entertainment, this event is perfect for everyone. Bring along your favourite board games or discover new ones from our collection. From classic favorites like Settlers of Catan, Carcassone or Ticket to Ride to modern gems like Codenames, Wyrmspan or Azul; from the simple UNO, Jenga or Pachisi to heavyweights like Brass: Birmingham, Root or Inis - there's something for every taste! Connect with fellow expats, make new friends, and challenge your skills in a welcoming and laid-back atmosphere. Don't worry if you're new to the city or don't know anyone — this is the perfect opportunity to mingle and bond over a shared love of tabletop gaming. Every Wednesday from 19 to... whenever they start preparing breakfast at the hostel. Mark your calendars, gather your game crew, and get ready for an unforgettable night of board game bliss! There is no entrance fee, but please support the hostel by ordering drinks. Let's roll!

Webmakers picnic is a monthly meetup where we gather to share our experiences and learnings as developers and makers on the web. Each meetup consists of a few talks by members in our community followed by a hangout in a nearby pub. You can find the recordings of our previous meetups on our [Youtube Channel](https://www.youtube.com/@webmakerspicnic/videos). **Agenda** * 18:45 - Doors open * 19:00 - 19:15 - Intro * 19:15 - 19:30 - Lightning talk #1 - Building text-to-speech in a multilingual app - Petr Semkin * 19:30 - 19:45 - Lightning talk #2 - Multi-camera and DAW control app for live music recording - Sylvain Tissot * 19:45 - 20:00 - Lightning talk #3 - Building Mapnook - AI-powered map of free time activities - Stepan Hilbert * 20:00 - ??:?? - Let's go the pub

In a world full of opinions, noise, and quick reactions, we often miss spaces for real dialogue — for slowing down, listening, and connecting with one another. This evening is an invitation to do exactly that. Join us for an open and friendly evening (in English & free of charge) dedicated to Connecting with our Humanity. We will brainstorm together in an Open Space–style format, where participants choose topics themselves about what we want to discuss from this broad topic - questions to help you get inspired: What does it mean to be human? What role does technology play in being human? How does society today shape our nature? How do we stay connected with our humanity? What's the impact of modern living? Afterwards, participants will form small groups to explore the questions and insights around the topics 18:00 – Doors open 18:15 – Introduction & topic selection 18:40 - We start discussions 19:40 - Closing session (sharing activities) 20:00 - Networking & Connect What to expect: A welcoming space for newcomers and regulars alike Be slightly pushed to socialize Open, participant-led small-group discussions on diverse perspectives No expertise required — everyone’s opinion matters! Safe, respectful, and judgment-free conversations More about sharing and reflecting than debating or convincing No pressure to speak — listening is just as valuable Not a lecture, not a debate club, and definitely not intimidating! Feel free to bring some snacks to share! Friendly dogs are welcome! If you are a regular that appreciate us and can help, or a newcomer who enjoyed the evening, and wants to help, we have recently set a Patreon page where you can support us! https://www.patreon.com/cw/EarthSocietyDialogues

Join us @ Locus Workspace during the European Coworking day! We'll start the afternoon with a screening of the short film '[ACTionism](https://www.actionism.space/want-to-take-an-action-today-host-an-actionism-film-screening/?%5Bref=londoncoworkingassembly.com%5D(ref=londoncoworkingassembly.com))'-the art of finding your people and taking action, together. Followed by a talk by Kristýna Holubová from [Swap Prague](https://www.swapprague.cz/), who will introduce to us their work. Since bringing the concept of swaps to the Czech Republic in 2016, Swap Prague has been creating spaces where people exchange items instead of buying new ones, putting the principles of the circular economy into everyday practice. Through events, workshops, and collaborations, they promote more responsible consumption while also strengthening community connections and encouraging lasting lifestyle changes. **This event is free and open to everyone, but spots are limited so make sure to reserve yours in advance!**

Our first introduction meeting! 🎉🎉🎉 You are welcome to join [whatsapp group](https://chat.whatsapp.com/I7NWogBfHRRCayjHRjrodb?mode=gi_t) to stay in touch. 💜 Let's introduce ourselves, share our stories and get to know each other. 🌸 Just a cozy café, warm company and an honest conversation about how AI is already showing up in your everyday life, and what it means for your work, your business and your future. Share what concerns you, let's talk, and remind each other that we are not alone.. Share what makes you optimistic! Join us for an evening where we'll talk about you and AI. 💜 You don't need to know anything about technology to be here. You just need to be curious. ✨ See you there dear ladies! 🌸

We are a group of runners who meet most weeks for a run around the beautiful Vltava River's edge. You can bring your running shoes straight from the office/home office if you don't have time to stop at home. There will be a place to put your bags in the Cafe. We will run about 9 km along the river and have a drink afterwards. Paces vary! We will meet in the square near Kavarna Liberal (Hermanova 6), near the Vltavska metro/tram stop at 6:30 on Wednesday. See you there!

This group is for anyone who writes - for any reason. Have a thesis or article you need to write? Trying to finish a novel or an academic paper? This group is for you. We are currently meeting in-person at Locus Workspace. If you have any questions, contact Sonya Lano here or on Facebook or Messenger (https://www.facebook.com/sonya.lano). We start at 9:00, introduce ourselves, and share a few words about what we're working on and what we hope to accomplish during the session. At the end of the session, you can give us a brief recap of how it went. We'll break at noon. The afternoon session starts at 2:00 pm. You're welcome to join both sessions or just one. Please come as close to 9:00 as you can if you come for the morning session. If you come to the afternoon session, we are usually back by about a quarter to 2:00.

Join **RSP Adventure** for an exclusive one-day escape to the heart of South Moravia and the stunning Lednice–Valtice Cultural Landscape. Escape the city and spend a day where history, architecture, and wine come together in one unforgettable experience. This UNESCO World Heritage Site—shaped over centuries by the House of Liechtenstein—is the largest man-made landscape in Europe, blending majestic Baroque chateaux, romantic parklands, and elegant English-style gardens into a truly magical setting. After exploring its timeless beauty, we’ll indulge in a curated wine tasting, savoring the finest Moravian vintages. Distance : about 12km (about 7 hours) Difficulty Rating : Easy Tour Highlights : • Professional and friendly guide. • Hassle-free day trip to Lednice-Valtice Cultural Landscape • Transportation by air-conditioned bus • Guided stroll through Lednice and Valtice Chateaux and their scenic surroundings • Tour of the Representative rooms at Lednice Castle • A wine tasting experience in one of the oldest and largest wine cellars in the Czech Republic (We will have the opportunity to taste each and every wine stored in the cellar :D ) • Visit the Colonnade of Reisten • See the Temple of Apollo • Visit the Hunting Lodge • Visit the Temple of the Three Graces • Savor traditional cuisine at a charming local restaurant. You can pay for the trip via: • Bank transfer: 7392420507/6363 • Revolut: @augustetqc • Wise: @agustind162 More information at : https://www.facebook.com/events/2136385227190940

**You start, but don't finish. We help you get it done.** Join our [WhatsApp group](https://chat.whatsapp.com/K6LidaoQhe16wZ0Se9pNM6), Keep contact via [Instagram](https://www.instagram.com/nocrastinationclub/) You just haven’t been able to follow through. You start things, lose momentum and find yourself starting over again. You’re not alone. Most people get support at the beginning. And applause at the end. But the part that actually matters? The middle. The quiet, repetitive, sometimes frustrating part where nothing feels exciting, and everything depends on showing up. **That’s where we are.** At NoCrastination, we don’t meet for hype. We meet to **show up and finish something, together.** Not perfectly. Not magically. Just consistently. **What this really is** This is a space for people who are: * building something * figuring things out * or simply trying to stay on track **without doing it alone** You don’t need to be an entrepreneur. You just need something you want to move forward. **What happens here** You bring something you’ve been putting off. We sit down together. We focus. And you leave with something done. That’s it. And that’s everything. **Why people keep coming back** * “I finally follow through on what I plan” * “I leave with real progress every time” 🕐 **Time**: 3:00 PM – 6:00 PM 📍 **Location**: **Safe Space Bookstore,** U božích bojovníků 606/3, Prague 3 Žižkov · Prague, cz 💻 **Bring**: Your laptop, journal, creative tools, or anything you’ve been procrastinating on 🌿 **Hosted by**: NoCrastination. ☕ Please do order something from the bar, so as to keep us in their good graces! Donations optional. **🪑Seating information:** * If this is your first time joining us, please look for **Fernando Goncalves** when you arrive * If you’d like to **work independently (without the Pomodoro arrangement)** but still be part of the group energy, just let Fernando know — we’ll make sure you’re comfortably included. 💛 🌱 **What to Expect** * **Drop in anytime** between **3:00–6:00 PM** — stay for a bit or settle in for the whole session * **Clarify your goals**: write down your measurable tasks for the day on a Post-it when you arrive * **Two spaces**: one for quiet focus, one for casual conversation. After each focus session, if you’re still in the flow, feel free to remain seated — no need to move. If you're up for a chat, join others in the social area for a relaxed break. * **Social start**: from **3:00 to 3:30 PM**, we mingle and get to know each other; our first focus session begins at **3:30 PM** * **Gentle structure**: we begin with a soft check-in and intention round * **Pomodoro-style rhythm**: We work in 45-minute focus blocks followed by 15-minute social breaks. If 45 minutes feels too long, feel free to break it into two 20-minute focus sessions with a short 5-minute reset in between. You’ll need to self-regulate these shorter cycles, just tune into your own flow and rejoin when ready. * **Quiet companionship**: no pressure to talk during focus time — just shared presence and support * **Welcoming space**: we meet in the creative, cozy lobby of the **Safe Space Bookstore** **This space is for you if…** * You keep starting but don’t finish * You work alone and feel stuck * You want structure without pressure * You don’t want to do this alone anymore **What you’ll get** Not motivation. Not a productivity hack. **You’ll get: ONE THING DONE.** And then you come back, and do it again. **This is how it starts** You don’t need to commit to anything big. Just come once. Pick one thing. Finish it. We’ll be there. **Stay connected** Join our [WhatsApp group](https://chat.whatsapp.com/K6LidaoQhe16wZ0Se9pNM6?mode=gi_t) Follow us on [Instagram](https://www.instagram.com/nocrastinationclub/) This is a space you can keep coming back to. **You’re not behind. You’re just in the middle.** And you don’t have to go through it alone. You are one of us.

**The most enjoyable dance friending event on a Friday night 🌤️💃✨** This is an OPEN-AIR event! We are dancing outdoors on a soft athletic surface. Restrooms and changing areas are available at a small restaurant nearby. 🚻 The night starts at 7:00 PM with chill music, socializing, and basic footwork. If you want to level up your dancing, be there at 7! Later, we flow into casual dancing, mixing European classics (Waltz, Polka) with modern Balfolk and chill Latin vibes (Forró). ✅ **No experience needed** → Come at 7 PM to learn the basics! 👣 ✅ **No partner needed** → We rotate! Feel free to ask anyone taking a break. 👋 ✅ **No dress code** → Wear comfy sneakers or go completely barefoot. 👟 ✅ **No pressure** → As long as you can sway to the rhythm, you belong! 🌟 ✅ **Free entry** → If you love the vibe, hit us with a 5-star review 🌟 or leave a voluntary tip via QR code (suggested 200 CZK). If you love to move and want to make new friends, simply show up on Friday and let’s dance!! 💃🔥 *Tančírna (pronounced tahn-cheer-nah) comes from the Czech word "tančit" (to dance) and literally means "a place for dancing".* **Pro-tip:** Pack a water bottle to stay hydrated 💧 and a hoodie for when the sun goes down! Ordering drinks/food at the local restaurant is possible, but it breaks the flow, so we usually do it after we wrap up. 💃🔥

early bird price 28.04-6.05 - 450, 7.05 - 600 CZK **Have you ever heard of a cuddle party? 🫂** It's a structured, non-sexual event where people come together to experience safe, consensual touch - hugging, holding hands, lying next to each other, or simply being in the same space with others Nobody expects anything from you. Just a guided environment where physical closeness is treated with care and clear boundaries The event is led by a facilitator who walks everyone through the rules of consent before anything begins - how to ask, how to say no, and how to receive a no without it being a big deal. There are warm-up exercises to help people settle in, followed by free time where participants choose for themselves how and with whom they want to interact. The evening closes with a short reflection circle **Who is this for?** People who miss physical closeness and don't have much of it in their daily lives. People who want to practice saying no - or hearing it - without it feeling like rejection. People who feel anxious around strangers and want a safe space to work through that slowly. People who are simply curious about this kind of experience. You don't need any particular reason to come **Who should probably skip this one?** If you're going through a serious mental health crisis right now, it's worth waiting until you're in a more stable place - this kind of event can bring up a lot. If you're coming with the hope of romantic or sexual connection, this isn't the right space for that. And if receiving a "no" from someone feels genuinely distressing to you, it might be worth exploring that with a therapist before joining **Women only** The exact address will be shared privately - for the safety and privacy of all participants If you have any questions, feel free to ask in the comments. And if you'd like to come - just drop me a message 🤗 [Rules for the event ](https://facebook.com/events/s/cuddle-party-women-only-70526-/2167801243987301/)

Join **RSP Adventures** for a day where castles meet cliffs and river trails lead you through one of the Czech Republic’s most captivating landscapes, and discover the dramatic beauty of the Ohře River valley on an unforgettable hiking day into Loket. This enchanting stretch of landscape, shaped over millions of years, lies between Karlovy Vary and Loket, within the protected wilderness of the Slavkov Forest Protected Landscape Area. Our hiking route follows scenic river paths, forested ridgelines, and panoramic viewpoints, offering breathtaking vistas of cliffs, woodland, and the iconic medieval silhouette of Loket Castle. Every step combines raw nature with centuries of history, making this adventure a perfect blend of exploration, geology, and fairytale scenery. Distance : 13km (about 7 hours) Difficulty Rating : Easy to Moderate **Tour Highlights:** • Professional and friendly guide • Hassle-free day trip along the romantic valley of the Ohře River • Short tour of Karlovy Vary. • Visit Diana´s tower. • Walk around the Spa forest "lázeňskými lesy" • Visit the remains of an early medieval Slavic settlement Starý Loket • Visit the Tašovice fortified settlement (evidences the oldest Slavic settlement in the area) • Discover the Svatoš Rocks (Svatošské skály) • Tour of the castle Loket • Walk across the Swing bridge • Visit to the family brewery Saint Florian. • Visit the natural outdoor amphitheatre. You can pay for the trip via: • Bank transfer: 7392420507/6363 • Revolut: @augustetqc • Wise: @agustind162 **More information at :** [https://www.facebook.com/events/1477033480578201](https://www.facebook.com/events/1477033480578201)

• What we'll do This meet up is for those who are learning English as a second language and want a chance to practice. We will provide a fun and interesting activity to encourage simple English conversation. It may be a game, an interesting topic, or whatever. We promise to keep the evening relaxed and give you a chance to practice your English. • What to bring Just you. • Important to know We are hosted by Do Slova Praha. As a church, we want to help our community in practical ways. We may hand out information to other events that our church does, but do not worry... this is not a religious event. Just come to practice English :) [https://www.doslovapraha.cz/](https://www.doslovapraha.cz/)

We meet to learn and practice American Sign Language and to grow our familiarity with Deaf culture. Facilitated by hearing folks (with a connection to a professional interpreter) using Deaf-created content. People of all ASL skill levels are welcome! As we learn, we hope to connect more with the Deaf community in Central Ohio. Join us as you're able! Come regularly or just once - whatever you're looking for! Each meetup will explore different topics related to ASL/Deaf culture, and will feature time to practice conversation with one another. Just bring yourself and a willingness to learn!

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **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 will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

**\*\*\* We've Moved! Bold Penguin - 6555 Longshore St, Dublin, OH 43017 \*\*\*** Talk by Todd Nussbaum LGTM is not a Strategy Pull requests are where quality is won or lost, and too many teams still treat reviews with a rushed "LGTM". In this talk, you'll learn a practical, repeatable approach to high-quality PR reviews that balances speed with risk management - covering how to triage changes quickly, review in layers, and write comments that lead to better outcomes without friction. We'll also show how QA and developers bring complementary lenses to the same review, turning acceptance criteria, scenarios, and observability into shared responsibility instead of production surprises. You'll leave with a lightweight framework and concrete habits for authors and reviewers that make reviews faster, kinder, and more effective. **AGENDA:** * See updates to parking below * Doors open at 5:30, feel free to come and hang out before! * Official start of the meeting is at 6:30pm * After the meeting is done, we will go hang out at a nearby space in Bridge Park! If you can, please sign up via meetup by noon the day of the meeting so we can have an estimate headcount for food :) We always order extra, so feel free to join us even if you don't get signed up! Thank you to Bold Penguin for providing the food and location! **Parking & Arrival:** **Parking:** Parking in Bridge Park is free. The closest lots are the Mooney Garage and the Hotel/Endres Garage. **Entry:** The doors to the office are to the right of PINS. The street level door and elevators lock at 6pm. If you arrive after that, someone should be there to let you in, else call the number posted. Take the elevator to the 2nd floor. Once you exit the elevator, turn right. \*\*\* We are a bunch of professionals, students, and geeks who are excited about Ruby programming language ([http://ruby-lang.org/](http://ruby-lang.org/)) and Rails framework ([http://rubyonrails.com/](http://rubyonrails.com/)) and the joy they have brought back to web development. Our main goal is to share the love of the Ruby and Rails ecosystems with anyone that is interested. We cater to everyone, whether a non-programmer through advanced Rubyists. * We give lectures on programming topics * We freely provide decades worth of experience * For full details of this month's meeting please visit [http://columbusrb.com](http://columbusrb.com)

Join us for a practical, beginner-friendly guide to choosing the right large language model. We’ll compare major models like ChatGPT, Claude, Gemini, and Llama, talk about when to use hosted APIs versus local models, and break down the tradeoffs around cost, speed, quality, privacy, context windows, coding ability, and reliability. You’ll leave with a clearer mental model for picking an LLM based on your actual use case instead of hype, benchmarks, or brand names. No deep AI background required. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

Join us for our May Book Club gathering where we will come together to discuss *[Cantoras](https://caroderobertis.com/books/cantoras/)*[ ](https://caroderobertis.com/books/cantoras/)by [Caro de Robertis](https://caroderobertis.com/bio/) in a safe and welcoming environment. Make new friends who share your passion for books and connect with fellow LGBTQ book enthusiasts.

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.