Hyperledger Fabric

How do different sectors turn data into real decisions? What can pharma, banking, consulting, telecom, and academia learn from each other when working with data? This meetup brings together data practitioners from multiple industries to share **practical examples** of how data is used in real-world decision-making — from regulated environments to large-scale commercial settings. to exchange experiences, get inspired, and meet people solving similar data problems. **Why you should attend?** * Cross‑sector examples of data-driven decision making * Practical ideas you can apply in your own work * A better overview of common data challenges * New contacts from industry and academia **When:** May 12, 17:30–20:00 **Where:** MSD Auditorium **Program:** **17:30 – 18:00** Registration & coffee **18:00 – 18:10** Welcome **18:10 – 19:00** Lightning talks (10 min each) * Pharma — Čeněk Polívka, MSD * Banking — Jiří Kacerovský, Komerční banka * Consulting — Martin Matějka, KPMG * Telecom — Adéla Račková, T‑Mobile **19:00 – 19:40** Panel discussion (moderated by Ota Novotný, VŠE) **19:40 – 20:00** Networking See you there! Please note: photos and/or short videos may be taken during this event for use in our promotional and marketing materials (website, social media, newsletters, etc.). If you prefer not to be photographed or recorded, please let an organizer know when you arrive and we will do our best to accommodate your request.

We will discuss two very short stories: Ursula Le Guin's ["The Ones Who Walk Away from Omelas"](https://files.libcom.org/files/ursula-k-le-guin-the-ones-who-walk-away-from-omelas.pdf) and Franz Kafka's ["Before the Law"](https://www.kafka-online.info/before-the-law.html) which together make up about 7 pages of reading. The first is often interpreted as an exploration of utilitarianism, which we can use to explore ideas of morality together as we examine Le Guin's memorable description of an apparently perfect society with one major flaw. The second is Kafka's short and strange parable about a man who wants access to the law; it is a work which explores ideas of power and authority. We will meet at L'Objet Trouvé near the Veletržní Palác. I look forward to seeing you there! If you want to help support these literary reading events, you can make a donation of any amount here: https://pay.sumup.com/b2c/QIBGIY6Y

**MPORTANT! Please register on [Luma page](https://luma.com/qmxm93hj)**​ Are you a strong designer with a solid portfolio, but still feel like your true impact remains invisible? We often believe that simply creating good mockups is enough. But the reality is: design almost never creates results in isolation, and the market pays for business impact, not just execution. ​**🎤 [Vova Safonov](https://www.linkedin.com/in/vova-safonov/) — From a Reactive Designer to a Proactive Leader** We will break down the illusion of "I complete tasks = I work well" and discuss why strong designers often lose in the market. You will learn how to: * ​Stop waiting for tasks and start taking responsibility for solutions. * ​Understand business expectations (impact on revenue, conversion, retention). * ​Develop an entrepreneurial mindset inside the company. ​**🎤 [Ivan Rohovchenko](https://www.linkedin.com/in/ivanrogovchenko/) — 1+1=3: How a Designer Creates Real Impact.** The greatest value is born at the intersection of functions. Ivan will share tools and real cases from his experience building design functions across 10+ companies. You will learn: * ​**The Three Levels of Influence:** How your value creation changes from IC to Design Lead to CDO. * ​**Perspective vs. Power:** Why designers often lose influence by proposing solutions to problems nobody has acknowledged yet. * ​**Practice:** Concrete tools for effective cross-functional collaboration, including stakeholder mapping. ​Huge thanks to **[Nagarro](https://www.nagarro.com/en/?utm_source=luma)** for hosting us, providing the space, and supporting the local design and tech community! Let’s gather to exchange experiences, build cross-functional strategies, and network with like-minded professionals!

**PLEASE REGISTER FOR THE EVENT DIRECTLY AT OUR WEBSITE** (not via Meetup): [https://cops.solutions/2026/04/what-good-ideas-need-to-survive/](https://cops.solutions/2026/04/what-good-ideas-need-to-survive/) The seventh edition of Venture Builders Meetup, this time with a keynote from [Dan Wood](https://www.linkedin.com/in/danvvood/), founder, innovator, and someone who has spent years figuring out why some ideas make it and most don't. His talk, *"What Good Ideas Need to Survive"*, is built around the Innovation Equation, a framework Dan developed over years of working with teams and organisations: Leadership + People + Technology + Context. Not a theory. A practical lens for understanding what conditions an idea actually needs to survive the journey to becoming something real. After the keynote, Dan stays on stage for Q&A; then we move to networking. **Agenda** 17:30 — Doors open 18:00 — Welcome by COPS Solutions 18:10 — Keynote: Dan Wood, *"What Good Ideas Need to Survive"* 18:40 — Q&A with Dan Wood 19:00 — Networking & drinks **Why you should join** This is your chance to hear from someone who has built, advised, and studied innovation across industries and geographies. Dan's keynote is grounded in real experience, not theory. Expect a talk that gives you a new way to look at the ideas you're already sitting on. And as always, the room will be full of founders and entrepreneurs who are in the same boat and worth talking to.s.

Are you learning English as a second language and looking for a chance to practice? Join our **English Conversation Club**! We create a friendly atmosphere with **games and activities** designed to help you improve your conversational skills. Our goal is simple: **leave each session with new words and more confidence speaking English!** **Details:** * **Cost:** Free (bring some money to buy a drink at Tichá Kavárna) * **Frequency:** Meets regularly based on attendance * **Who:** Anyone studying or practicing English **Things to know:** Tichá Kavárna is a social enterprise café that creates jobs for the deaf community and connects the hearing and deaf worlds. Guests can order in sign language or simply point to the menu, making communication easy. Profits support services for the deaf and the café’s development. This event is sponsored by the church **Církev bratrská, Bohnice** [https://www.cbbohnice.cz](https://www.cbbohnice.cz/). We believe in helping others with practical needs—like learning English—while we live lives that reflect Jesus. At the end of each session, we’ll offer an open invitation for anyone interested in exploring faith, reading the Bible, or learning more about Jesus. **Participation in religious activities is completely optional.** We will never trick you into attending and will always be honest about the content of our meetings.

**3x3 Basketball** practice in **Gymnázium Na Pražačce** indoor basketball court. **Start at 19h00**. Everybody is welcome, no age, gender nor any restriction of any type to join. We got a full field, rotating with 3x3 matches on each side. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/thtAJd0 In case of any Opt-out within 24h of the session, or no show, the payment will be due (you still can ask someone to come instead of you, as your spot will be booked)

Ahoj! Want to work on your Czech in a fun and playful way? Come join us to practice together! ➡️Can't make it at this time? No problem, join in when you can. Not available this time? Don't worry, we organise events regularly, so make sure to follow our page to stay updated! ℹ️The bar is underground and a bit hidden. If you are not able to find it, send a message and we will help you. ➡️ Mixed levels You don’t need to worry about your level of Czech, given that you already have some basic familiarity with the language. We will provide guidance throughout the event adapted to different levels, so anyone who wants to learn can easily participate. You are also welcome just to listen, it can be very helpful! This is a unique learning experience as well as a way to find like-minded language enthusiasts over a cup of coffee or a beer. ➡️For organisational reasons we ask to send us a message if you plan to join or to put yourself on going. In order to guaranty qualitative learning for everyone present we will limit the inscriptions if we are getting too full. ➡️Price: For you to decide! We accept donations to make sure we can continue organising regular events. Looking forward to meet you! 🤓

\*\*\*\*\* We're meeting both in-person and virtually via Skype depending on the week. Contact Sonya Lano for more information if you want to join \*\*\*\*\* This is for anyone wanting feedback! We mostly focus on novels and longer works, but short stories are welcome, as well. You can submit anything you want feedback on in any genre. Current word limit for submissions is 4,000 words. Send your submissions by 13:30 the Thursday before the meeting (or we have a grace period during which you can submit a lower limit of 2,500 words if you submit by midnight Thursday evening). Also, if you don't have time to read through everyone's submissions, still join the meeting! We know that busy schedules don't always make finding reading time easy. To submit, use the Dropbox folder. If you don't have access to it, send sonyalakadosch@yahoo.com your e-mail address so I can add you. Looking forward to seeing everyone there! My number in case of any confusion the day of the meeting is 737 118 530 - or on Facebook: Sonya Lano (https://www.facebook.com/sonya.lano) DROPBOX INFO: * add new submissions for the next meeting in the " submissions" folder for the meeting date. Put your name at the beginning of the file name (for example: "Sonya Somewhere in the Dark") * When providing written feedback (not required, but deeply welcome), save the file as a separate document on your device, then mark your changes/ feedback in the saved file. After you're finished, put the file in the "Feedback" folder under the folder for the meeting date and then under the person the feedback is for (e.g. "For Sonya"). * The submissions folder will be replaced within a week after the meeting has taken place. Feedback will be deleted within 2 months after the meeting, so if you need it longer than that, make sure to copy it to your own disk.

**Agenda:** * Introduction * Networking * Optional Lightning Talks Open doors @ 19:30 Prague time, Start 20:00, End until close **RSVP here: [https://luma.com/tipcukl4](https://luma.com/tipcukl4)** ​BeerFi Prague is joining forces with The FinTechers to host a special edition of our meetup during FintechWeek CEE. This event is designed to bridge the gap between institutional finance and the frontier of Web3. Whether you are a banking veteran or a DeFi native, all Fi(s) are welcome. This is an inclusive space for everyone across the finance spectrum to meet, share ideas, and network in an informal setting. **Lightning Talks:** Working on something innovative in Fintech or Web3? You get the floor for 5 minutes. sign up here: [https://docs.fileverse.io/document/69Xd9qpEhJgxDPqqXPkb6j/share#key=tSoOPm-NiOR_UNAr4J5-CM1DOgobhhklo0nU4ULBgCw](https://docs.fileverse.io/document/69Xd9qpEhJgxDPqqXPkb6j/share#key=tSoOPm-NiOR_UNAr4J5-CM1DOgobhhklo0nU4ULBgCw) **Join the Community:** Have questions or want to share something cool with us? Join our community group on Telegram to get updates or to share knowledge: [https://t.me/+eA4eMYlEo-k2ZGVk](https://t.me/+eA4eMYlEo-k2ZGVk) We look forward to seeing you all!

Hello Gophers, Welcome back for another year of Go talks and networking! Would your company like to host our meetup? Let us know! If you'd like to give a talk - submit your proposals here: http://goo.gl/forms/54YvJT223F All talk formats work: short talks (5-10 min) as well as regular length (25 min). If you have more ideas - talk to us at the Gophers slack: https://invite.slack.gobridge.org/ in the #berlin channel, and follow us on twitter: https://twitter.com/gdgberlingo **Speakers**: *Simon Schulte* is a Tech Lead with nearly a decade of experience building scalable backend systems across fast-paced product companies. With a background in business informatics and a passion for Golang, cloud infrastructure, and DevOps, he has spent his career solving complex engineering challenges. He is particularly excited about leveraging AI and LLM workflows to eliminate the tedious, repetitive work that slows developers down — think tech debt, boilerplate, and documentation — so engineers can spend their energy on what actually moves the needle. For Simon, AI isn't about replacing developers; it's about giving them back their time. *Daniel Peralta Madriz* is a backend engineer from Costa Rica with around 6 years of experience working with Golang, although, sadly, he's been spending most of his time lately working with Node.js :(. He is interested in distributed systems, scalability, and developer experience, and is currently experimenting with how to leverage LLMs to safely and autonomously execute repetitive tasks. *Michael Morgen* is a Platform/infra engineer by day, runtime and network optimizations by night. Join in person at: **Talon.One** Talon.One is the incentives engine behind 300 of the world’s most-loved brands, unifying loyalty and promotions on a single flexible platform. Their customers run millions of real-time incentive decisions across markets, channels, and use [cases.As](http://cases.as/) incentives become more strategic than ever, they are continuing to raise the bar for what businesses can build and how fast they can build it Wiener Str. 10, 10999 Berlin https://maps.app.goo.gl/8eMjgWes1E4TBA3c7 or virtually at: https://www.youtube.com/live/qh__TQ1bMF0?is=hw21pk0ZE3HGyaaT *** Agenda 10:49 PM: Networking Networking over drinks and food 7:30 PM: Welcome Welcome words from the organizers 7:35 PM: Talk 1: Go-ing Against the Chaos: Deterministic LLM Workflows / Daniel Peralta Madriz (Backend developer) & Simon Schulte (Techlead of Webhooks and Notifications) @ Talon.One LLMs are powerful, but “it works most of the time” isn’t good enough for production. In this talk, we’ll walk through how to design deterministic workflows around non-deterministic models using Go. From structured iteration loops to validation steps and guardrails, you’ll learn how to move beyond prompting and start engineering reliable LLM-powered systems 8:10 PM: Announcements and break Announcements, HR lost & found, open mic 8:30 PM: Talk 2: About Go Memory Allocator / Michael Morgen, Platform/infra engineer @ Mirantis A short talk about how Go gives memory to your program. We will look at the main allocator parts, why small allocations are usually fast, when Go asks the OS for more memory, and a couple of simple examples where this knowledge helps performance. 9:05 PM: Networking Networking over drinks and food *** Hosted By Natalie Pistunovich, Organizer Ole Bulbuk, Organizer Tim Scheuermann, Organizer Anderson Queiroz, Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-berlin-golang-presents-hybrid-may-golang-meetup-1/.

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!

**„Květnový sraz, kde se řeší novinky i přístupnost s Claude Code!"** Jaro je v plném proudu a my se opět scházíme v pivovaru Lajka. Tentokrát na vás čekají čerstvé novinky ze světa frontendu a přednáška o tom, jak propojit Obsidian s Claude Code pro web accessibility. Vezměte dobrou náladu a přijďte! **Budeme se scházet postupně od 18:00 a od 18:30 máme na programu:** * 📰 Nowwwinky – Tomáš Kout * ♿ Obsidian + Claude Code = web accessibility **–** Petr Koláček * 🎲 Risk{f}uj! **Nowwwinky 📰 – Tomáš Kout** Co je nového ve světě frontendu? Tomáš pro vás jako vždy vybral to nejzajímavější, co se od posledního srazu událo. **Obsidian + Claude Code = web accessibility 👩🏽‍🦯 – Petr Koláček** Díky AI můžeme dnes poměrně lehce překonávat technologické bariéry a stavět aplikace, které bychom dříve sami nesvedli. Je to ale vždycky potřeba? Nejdeme často s kanónem na vrabce? Jak postavit nástroj, který nám pomůže s webovou přístupností pouze pomocí aplikací a služeb, které máme dávno k dispozici. *Petr je frontendový vývojář s více než 20letou praxí. Dlouhodobě se specializuje na CSS, webové UI, tvorbu design systémů a v posledních letech i na webovou přístupnost.* **„Risk{f}uj!" 🎲** Čeká nás další kolo oblíbené vědomostní soutěže na frontendová témata. Sestavte si tým a porovnejte svoje znalosti s ostatními soutěžícími. Těšíme se na vás v pivovaru! 🍻✨

Pojďme se pravidelně potkávat a sdílet zkušenosti z Power Platformy, co nás na ní baví, co nás trápí a co nového zajímavého přichází. A pokud už nám to někde reálně běží, pochlubme se, jak to funguje nebo nefunguje. Témata jsou primárně Power Automate, Power Apps, Power Pages, Power BI, Copilot Studio, Dynamics 365 a Dataverse. Budeme rádi i za méně pokročilé příspěvky, protože většinou jsme velmi hluboko v technických detailech. **Lokalita:** Fyzicky v Microsoftu v Praze Vyskočilova 1561/4a, Praha 4, 140 00 Místnost Morava Případně online na [https://ppug.community/stream](https://ppug.community/stream) **Jazyk:** čeština **Agenda:** [https://ppug.community/agenda](https://ppug.community/agenda) **Přihlašte vlastní příspěvek:** [https://ppug.community/sessions](https://ppug.community/sessions) **Link na stream:** [https://ppug.community/stream](https://ppug.community/stream) **Občerstvení:** Bagety **Úroveň:** 100-300 Tak si prosím naplánujte čas ve svých kalendářích a přijďte, pokud bude chuť a čas, tak si po meetupu určitě můžeme sednout na pivo.

After five successful sessions in Krakow, we're bringing our Tech Talk: Elevate Together – The Live Mentoring Sessions to Prague for an evening of learning, insight, and meaningful connections within the tech community! 🚀 This in-person event is designed for professionals and aspiring talent who want to grow their careers, expand their networks, and gain practical advice from experienced leaders in the technology industry. During the session, you’ll hear directly from a panel of seasoned mentors who will share their experiences, lessons learned, and perspectives on navigating the ever-evolving tech landscape. Following an audience led format, you'll have the opportunity to ask questions and receive real-time guidance from experts who have built successful careers across different areas of technology. Our mentors: \- Jaroslav Holý\, Founder at OasisMetaGames \- Kateřina Lesch\, Group AI Manager at Dr\. Max \- Marek Braun\, Head of Applied AI at Betsys \- Sarantis Kyritsis\, Director of Engineering at Mastercard \- Michal Kubišta\, AI Lead at ValkaAI \- Jan Pivovarník\, AI CoE Lead at Vodafone Event Details 🕕 18:00 CET 📆 14th May 2026 📍 Node5 What to expect: \- Live mentoring from experienced technology professionals \- Interactive Q&A sessions with the panel \- CV and career guidance from industry experts \- Networking opportunities with like\-minded professionals Tech Talk aims to bring people together in one room to share knowledge, exchange ideas and build meaningful professional connections. By creating an open and engaging environment, we encourage honest conversations about career development, industry challenges, and the skills needed to thrive in tech. Whether you’re looking to break into the industry, advance in your current role, or simply gain fresh perspectives from experienced professionals, this event offers a valuable opportunity to learn, connect and grow. Spaces are limited, so be sure to secure your place and join us for an evening dedicated to growth, development and the future of tech!

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!

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.

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'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)

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.

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.