Product Launch

**Join us in Prague for a Snowflake User Group evening hosted by Everpure (formely Pure Storage).** This edition will bring together Snowflake product updates and practical lessons from teams using the platform in production. We’ll begin with a look at recent developments across the Snowflake ecosystem, including selected new features and broader trends shaping the data platform space. The evening will also include a customer session from Everpure's Metrics team, focused on large-scale data pipelines in Snowflake, including Snowpipe Streaming and experience from high-volume production environments. We’ll round things off with an informal fireside chat with a guest from Snowflake, followed by networking, community discussion, and the traditional Snowflake quiz. **EVENT DETAILS** * **What’s New in Snowflake** Kick off the evening with an overview of the latest developments in the Snowflake ecosystem. We’ll cover new features, emerging trends in the data platform space, and a few practical insights from real-world projects. * **Customer Story: Data Pipelines at Scale** Our host company Everpure's Metrics team will share how they use Snowflake in their data pipelines. The session will focus on large-scale ingestion using Snowpipe Streaming, handling around 10 TB of data per day, and lessons learned from operating high-volume pipelines in production. * **Fireside Chat with Snowflake** An informal conversation with a guest directly from Snowflake. We’ll discuss recent platform developments, what’s coming next, and interesting topics shaping the future of data platforms. The chat will be hosted and moderated live. * **The Snowflake Quiz** As always, we’ll close with the Snowflake quiz, a few goodies up for grabs, and time to connect with fellow data professionals over drinks. **RSVP** here [See Snowflake in Action: Prague User Group](https://usergroups.snowflake.com/events/details/snowflake-prague-presents-snowflake-in-action-prague-user-group-hosted-by-pure-storage-1/).

🎤🔥 OPEN MIC \| JAM SESSION @ Tequila Tales 🔥🎶 Ready to step on stage, grab the mic, and let your talent shine? ✨ We’re launching a weekly Open Mic \| Jam Session — a vibrant\, inclusive space where artists come together to create\, experiment\, and perform in front of an energetic\, supportive crowd 🎭💛 📅 Every Wednesday 🚀 First Edition: Wednesday, 21st January 2026 🎭 Who can perform? 🎤 Poets & spoken word artists 😂 Stand-up comedians 🎸 Musicians & bands 🎭 Improv & theatre performers 🪄 Magicians & experimental acts ⏱ Performance slots: 15–20 minutes 🎶 Open format \| Free entry \| Community vibes only 📝 Want to perform? Sign up here: 👉 https://forms.gle/uwcZcDdGkBwM3Yqs9 ⏰ Signup deadline: Sunday 19:00 (same week) 📋 Final roster announced: Monday ⚠️ Late requests may be considered via WhatsApp on Monday & Tuesday only if slots are available — no guarantees once the lineup is full. Whether you’re testing new material, performing for the first time, or just soaking in the creative energy — this stage is yours 🎶🔥 Come perform, come support, come vibe ✨🍹 🎤💥 Every Wednesday. One mic. Endless talent. 💥🎤

SPEED FRIENDING - COCKTAILS - PRIZES & MORE Let's meet each other! In an effort for community building we are doing The Wednesday Club once a month great venues such as KONTAKT BAR and LE VALMONT, amazing hidden cocktail bars in the heart of Prague, opening their doors exclusively to you for this event. This event is perfect for a night out if you want to meet some new people. You will be able to spend some one-on-one time with each of them, meet friends for life or just to have some interesting encounters. Everyone is welcome as there are no age restrictions for this event. Each round will take 5 minutes and then a bell will ring and it's time to move on to the next person to discover. Not only will you leave with new friends but there are also some opportunities to win prizes. But for that you’ll have to come discover the event for yourself… Tickets: [Mandatory registration here](https://connect.boomevents.org/en/somethingnew-uqvwe/the-wednesday-club-international-speed-friending-asaur) We are very excited to meet you! Somethingnew

**Hosted by Sky Czech Republic.** Doors are open from 5:30 pm, talks will start at 6:00 pm. **1\. Marek Svitok \(Sky\) \- Elegance and Safety in Goroutine Management** Concurrent programming is a core strength of Go, but managing multiple goroutines while handling errors and synchronization can quickly become complex and error-prone. The golang.org/x/sync/errgroup package provides a simple and effective abstraction for running multiple goroutines concurrently, propagating the first error encountered, and ensuring all routines complete before proceeding. In this article, we explore why errgroup is a valuable tool, how to use it effectively, and what design patterns emerge from its usage. We also examine how one might implement similar functionality manually, highlighting the pitfalls and edge cases that make a manual approach cumbersome. By comparing manual implementations with the idiomatic errgroup usage, we aim to demonstrate why adopting this package leads to safer, cleaner, and more maintainable concurrent code in Go. **2\. Vilibald Wanca \- Nail the Basics \- S01E03** Go does not use `try/catch` for normal error handling. Instead, it treats errors as explicit return values, while `panic` is reserved for truly exceptional or unrecoverable situations. A panic stops normal execution, runs deferred calls, and can only be intercepted with `recover` inside a deferred function. This makes `panic/recover` closer to an emergency escape hatch than a general exception system. The result is a model that favors clarity and explicit control over hidden flow. By attending the event I agree that photographs and video recordings from this event may be used by Sky Czech Republic for employer branding and promotional purposes across company websites, career pages, social media, third-party profiles, and other communication materials.

Před několika měsíci vyústila vyostřená debata o filtrech a Core vs Knots v kontroverzní návrh BIP-110, původně známý jako “BIP-444”, neboli Reduce Data Temporary Soft Fork, který má za cíl dočasně omezit časté způsoby vkládání netransakčních dat na bitcoin. Je tento návrh efektivní? Jaké kroky navrhuje? Co se musí stát pro jeho aktivaci a jaká je situace dnes? Lukáš, náš expert na Rust a bitcoin, vám podrobně přiblíží tento problém z každého hlediska. **🦀 PREZENTACE** Tato přednáška představuje BIP-110 v kontextu debaty Knots VS Core, tedy o spam filterech. BIP-110 se snaží se vypořádat se s domnělým i reálným spamem změnou pravidel Bitcoin konsensu, tím že zakáže použití určitých op-kódů a omezí maximální velikosti dat u jiných opcodes. Na BIP-110 se podíváme 1. Z pohledu technického: Co přesně se snaží změnit a proč, kterým metodám se snaží zamezit, a zda zabraňuje některým legitimním použitím bitcoinu 2. Z pohledu časové osy a komunity: Kdy a kým byl BIP-110 vytvořen, kdy se aktivuje a jaké podmínky pro aktivaci musí splnit, jak fungují User-Activated Soft Forky, co se může stát, pokud k jeho aktivaci dojde, a co se může stát, pokud ne 3. Z pohledu efektivity: Jak zapadá do existujících způsobů vkládání netransakčních dat na blockchain, kterým způsobům nezamezuje, a jak se to projeví na ceně vkládání dat **🦀 NETWORKING** Po přibližně 60minutové prezentaci a Q&A zůstáváme na networking u piva. Zůstáváme do 22:00. * Registrace je zdarma. * Bude pití i něco k jídlu. * Odměny za nejlepší otázky. * Knihy od Braiins zdarma. **🦀 PŘEDNÁŠEJÍCÍ** Lukáš Hozda je expert na Rust, autor knihy Building Bitcoin in Rust a lektor kurzů Rust a Advanced Rust na Univerzitě Karlově. Přes den pracuje v pražské bitcoinové softwarové společnosti Braiins, kde jeho oficiální pracovní titul zní Braiins Superman. * Stáhněte si jeho eBook Building Bitcoin in Rust zdarma. * Sledujte Lukáše na X: https://x.com/LukasHozda Pokud vás zajímá seriózní Rust engineering, přidejte se k nám. 🔗 https://braiins.com *** **ENGLISH** 🇺🇸 **Analysis of BIP-110: Timeline, Details and Impacts. Can it work?** A few months ago, a heated debate about filters and Core vs Knots culminated in the controversial proposal BIP-110, originally known as 'BIP-444', or Reduce Data Temporary Soft Fork, which aims to temporarily restrict common methods of inserting non-transactional data onto Bitcoin. Is this proposal effective? What steps does it propose? What needs to happen for it to be activated, and what is the situation today? **🦀 THE PRESENTATION** This lecture presents BIP-110 in the context of the Knots vs Core debate, specifically about spam filters. BIP-110 attempts to deal with both alleged and real spam by changing Bitcoin consensus rules, by banning the use of certain op-codes and restricting the maximum data sizes of other opcodes. We will look at BIP-110 from: 1. A technical perspective: What exactly it tries to change and why, which methods it tries to prevent, and whether it blocks some legitimate uses of Bitcoin 2. A timeline and community perspective: When and by whom BIP-110 was created, when it activates and what conditions it must meet for activation, how User-Activated Soft Forks work, what may happen if it is activated, and what may happen if it is not 3. An effectiveness perspective: How it fits into existing methods of inserting non-transactional data onto the blockchain, which methods it does not prevent, and how this will be reflected in the cost of inserting data **🦀 THE NETWORKING** After about a 60min presentation and Q&A we will stay to network over a beer, we stay until 22:00. * Register here for free entry. * Drinks and snacks provided. * Giveaways for the best Q&A questions. * Braiins Bitcoin books for free. **🦀 THE SPEAKER** Lukáš Hozda is a Rust expert, author of the book Building Bitcoin in Rust, and a lecturer of Rust and Advanced Rust at Charles University. By day, he works at the Prague-based Bitcoin software company Braiins, where his official job title is Braiins Superman. * Download his free eBook [Building Bitcoin in Rust](https://braiins.com/books/building-bitcoin-in-rust) * Follow Lukáš on X: [https://x.com/LukasHozda](https://x.com/LukasHozda) If you are interested in serious Rust engineering, join us. 🔗 [https://braiins.com](https://braiins.com/)

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!

*** **Description** Join us for the very first Pure Tea Tasting Prague event! Discover unique teas, meet fellow tea lovers, and enjoy a relaxing evening focused on wellness and mindful living. **What to Expect:** * Guided tasting of premium pure teas (including vegan and wellness-focused options) * Introduction to tea rituals and culture * Friendly conversation and community networking * Light healthy snacks **Agenda:** * 19:00 – Welcome & introductions * 19:15 – Tea tasting session (multiple varieties) * 20:15 – Open discussion, Q&A, and social time * 21:00 – Event close **What to Bring:** * Just your curiosity and good mood! All tea and snacks are provided. **Location:** Pure Spa, Le Palais Art Hotel, Prague (Details and directions will be sent after RSVP.) **Who Should Join:** Anyone interested in tea, wellness, or making new friends in Prague. All experience levels welcome! ***

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **This is a curated, small-group meetup make new friends in Prague.** Each meetup brings together 4–6 like-minded people for casual conversations over dinner. We use the Groupvibe platform to organize and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com](https://groupvibe.com) Once you register, and **buy a ticket or become a Groupvibe member**, we’ll share the exact location and match you with your group. **Why this works:** \* Smaller groups make real conversations easier \* Matching helps avoid awkward dynamics **Note:** RSVPs here on Meetup don’t reflect total attendance. Many attendees register directly via our website. This meetup is organized by **Groupvibe**, a small team passionate about helping people form meaningful friendships offline.

## **What IdeaVerse is about** **We meet usually once a month to discuss some of the current challenges as well and perhaps come up with new ideas on how to overcome them. For those who came regularly, this next meetup would be slightly different. We will do a workshop on solving real world problems.** The problem we will attempt to solve is the dissolution of communities and spaces where people connect in person, and with it, our increased isolation and loneliness. There are many reasons why this is happening: \- replacement of religion with science as a beacon of meaning\, which seems to be much less great at inspiring connection; \- economic forces boosting our ego\, and make it easier to pay for random strangers for help then making lasting connections with people\. \- political polarization \- \(anti\)social media \(as I call it\) and now AI offering simulations of relationships\. \- climate change increasing our distrust in a better future and the importance of investing in life and people\. \- closing down of third spaces like churches\, malls and retail stores \(due to online shopping\)\, youth centers and increase in remote work\. These are all causes we'll explore, together with examples of how other people expressed they feel about this issue from research, reasons why this issue exists as well as examples of small victories against this tide. We'll work in small groups putting all this knowledge together with out imagination and attempt to find local solutions to similar problems here in Prague. This is is more than a discussion. It's an exploration of our ability to work together to effect change in ourselves and in our social circles. **Some suggested reading/watching:** 1. "Contrary to the perception that isolation and loneliness primarily affect older people in high-income countries, they impact the health and well-being of all age groups across the world. One in four older people experience social isolation and the rates are broadly similar in all regions. Among adolescents, between 5­­–15% experience loneliness, according to research findings." (3 minute read - [WHO launches commission to foster social connection](https://www.who.int/news/item/15-11-2023-who-launches-commission-to-foster-social-connection)) 2. "Many popular sitcoms center around what's known as a third place-- for example, Central Park in Friends or the Bull and Finch Pub from Cheers. Like the theme song goes, it's somewhere where everybody knows your name, where you can socialize in a place other than your home or work and build some community. But with the whole world accessible on your smartphone, it's kind of hard to resist the call of the couch. And it's hurting us more than we think." (10 minute Podcast [Third places’ may be the answer to America’s loneliness epidemic](https://www.mprnews.org/episode/2024/05/23/third-places-may-be-the-answer-to-americas-loneliness-epidemic)) 3. “These verdicts mark an unsurprising breaking point. Negative sentiment toward social media has been building for years, and now it’s finally boiled over,” said Mike Proulx, a director at Forrester, a market research company. (4 minute read - [How the landmark verdict against Meta and YouTube could hit their businesses](https://www.aol.com/finance/landmark-verdict-against-meta-youtube-100000070.html)) **The meeting is free to attend, but please buy a drink or two at our patron's place, to make them happy.**

**Talk 1 – ArgoTs: TypeScript-Powered GitOps with ArgoCD** By: Jiří Soukal - Senior Cloud Engineer, from PriceFX Kubernetes is the de facto standard for cloud-native infrastructure, but managing it often means drowning in YAML. Tools like Kustomize, Helm, and ArgoCD overlays ease the pain, yet feel like patchwork rather than a fix. TypeScript-native solutions such as Pulumi or Terraform exist, but they rely on external state to diff and apply changes—adding complexity for GitOps teams. This talk introduces a new approach: using TypeScript as the source of truth for Kubernetes infrastructure without external state. By extending ArgoCD to understand TypeScript, we can dynamically generate all resources, from workloads to ArgoCD Applications and even cloud provider resources via ConfigConnector or Crossplane. **Talk 2 –** **Securing AI Deployments: From Prompts to AIBOM** By: Marek Sottl, CEO of Hackihub Are you interested in the security of AI application deployments? This packed session will focus on protecting language models and the obstacles that can arise during their deployment from a security perspective. We will explore deployment strategies in AWS and Azure environments, input validation using NLP, prompt tracing, and above all, we will emphasize the importance of AIBOM and MLBOM. **Talk 3 - GitOps, IaTS, OpenRouter and OpenClaw come to a bar** By Martin Pohl GitOps, IaTS, OpenRouter and OpenClaw come to a bar. The bartender says, “Great… who actually has production access?” GitOps says, “Not me, I only sync what’s in git.” IaTS says, “I just generate the infrastructure.” OpenRouter says, “I only route the requests.” OpenClaw says, “Relax, I already decided for everyone.” The bartender slowly reaches for the incident button: “So… which one of you started the outage?” All four reply: “According to the logs, it was a collaborative effort.” Today’s infrastructure tooling is incredibly powerful platforms like ArgoCD, TypeScript-based GitOps, and modern cloud-native stacks allow us to build and manage systems with unprecedented flexibility. But at the same time, we are introducing entirely new layers of complexity and attack surface. This talk explores the intersection of GitOps, TypeScript-driven infrastructure, and emerging AI tooling such as OpenRouter and autonomous agent-style setups like OpenClaw. As infrastructure evolves from static, declarative definitions into dynamic, runtime-generated systems, we are no longer just managing code we are operating systems that can interpret inputs, generate logic, and in some cases act autonomously. With this shift comes a new set of security challenges: prompt injection, tool misuse, model supply chain risks, and limited observability into AI-driven decision-making. The session connects these emerging risks with concepts like AIBOM and modern AI deployment security practices. Ultimately, this talk asks a critical question: are we building the future of platform engineering or creating systems we no longer fully control? **More about Talk 1:** Combining GitOps with the expressiveness of TypeScript creates infrastructure that is both declarative and dynamic, reducing toil while enabling richer abstractions, safer collaboration, and more maintainable platform engineering practices across the CNCF ekosystem. Benefits to the ecosystem \- Clarity & Maintainability: Reduces YAML complexity and templating hacks by introducing a strongly typed\, programmatic way to define infrastructure\. \- GitOps Alignment: Preserves ArgoCD’s declarative\, state\-free model while unlocking the flexibility of TypeScript\. \- Scalability: Makes it easier to manage multi\-cluster and multi\-environment setups with reusable\, composable infrastructure definitions\. \- Innovation in Platform Engineering: Demonstrates how the Kubernetes ecosystem can evolve beyond YAML\-first thinking\, inspiring new tools and workflows that balance developer experience with operational reliability\. \- Community Value: Provides a concrete path for teams frustrated with YAML sprawl to adopt a more maintainable\, type\-safe\, and future\-proof approach—without abandoning the CNCF ecosystem’s GitOps best practices\.

Some people go to pubs. Some people conquer galaxies, build empires, trade spices, or outsmart dragons. Nerdy Fridays are our open board game nights for anyone who prefers strategy over small talk and dice over disco lights. Come solo or bring your crew. We’ll help you find a table, explain the rules, and match you with a game that fits your vibe. From light party games to deep strategic battles, the shelves are open. Entry fee: 100 CZK (includes access to games and rule explanation) Friday nights don’t have to be loud. They can be legendary. 🎲✨

Are you interested in a lot of things but just a little at a time? Then come to the 5 Minute University! Each talk lasts only 5 minutes followed by 1-2 questions and you'll have the chance to talk to the speakers and other listeners before and after the event - it's a great place to make some friends and find good conversation! Here's the current line up: 1.Jamin Tuma - "What happens if you ask yourself 500 pages worth of questions?" 2.Martin Popop - "How to Drink Without Getting a Hangover" 3.Steven Rasovsky - "The Power of Breath" 4.JT Ostdeik - "What is Philosophy?" 5.Tom Thumb - "The Art of Storytelling" 6.Mauro Pellegrini - Everything I know about the contemporary art scene in Prague 8.Maria - It takes two to tango 9.Trang - Why are there so many potraviny in Prague? 10.Vita - TBD 11.Bara - TBD This event is solo-friendly, there will be plenty of things to talk about. So join alone or bring a friend, everyone is welcome. It's a free event and so be sure to support our hosts, Dorado Coffee, by buying drinks.

Looking to meet new people and enjoy a relaxed day full of board games? Join us at Palmovka for a cozy board-gaming meet-up open to everyone — beginners, casual players, and experienced gamers! We have a big selection of games, from easy social titles to strategic favourites. You can come alone or with friends — our community is super friendly, and we always make sure nobody sits alone. Don’t worry if you don’t know the rules — we’ll happily explain everything. ✔ Friendly atmosphere ✔ Lots of games to choose from ✔ Perfect for meeting new people ✔ Come anytime during the day ✔ No registration needed entry fee 50czk (no hour limit) if you do not order anything at bar it is 100czk. Whether you want to laugh, think, or just relax after a long day, this is the perfect place to unwind and connect with others. See you at Palmovka – let’s play!

Lets meet at Puerto Rico Cafe & Cocktail Bar to start the weekend for an easygoing evening of drinks, good food, conversation, and networking in a cozy, stylish setting in Vinohrady. Feel free to come alone or bring friends along. Just ask for the Meetup group when you arrive. Looking forward to seeing you there! ✨ Shahab P.S: For booking purposes, only those who have signed up may attend :)

**Optional movie afterwards**

Join other experienced and aspiring agile coaches and professionals to: * develop and practice your coaching skills in a peer-to-peer environment * share current successes and challenges in your work environment and get support from each other * learn from each other, build better relationships and experiment with new ideas ***NOTE:*** Pre-registration is required for this event. **Please arrive 10 minutes early** to check in at the security desk.

**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** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **Join the Columbus City Brunch Club and make new friends!** Each meetup brings together 4–6 people for casual conversations over brunch. We use the Groupvibe platform to facilitate the meetup and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com/](https://groupvibe.com/) We’ll share the exact location of the upcoming meetup the night before only if you have bought a ticket or membership plan. **Why this works:** \* Smaller groups make real conversations easier. \* Discover new restaurants in your city, together. \* Curated lunch venues with good food and vibe. \* If you hit it off with your group, there’s plenty of time to hang out afterwards. **Note:** RSVPs on Meetup don’t reflect total attendance. Many attendees register directly via our website. The event on [Meetup.com](http://meetup.com/) is only a placeholder. This meetup is organized by Groupvibe, a small team passionate about helping people form meaningful friendships offline.

**Let’s catch up and take an afternoon break.** **Grab a coffee or snack and let’s chit chat! Gayle and I will bring adult coloring books and/or a simple craft if you’d like to unwind and relax.😊**

Bienvenue! Columbus French Conversation group invites you to our Saturday morning French conversation club. Expect a casual and welcoming atmosphere in which to learn french! I will bring my laptop so we can look up new vocabulary as needed! The venue is a beautiful French restaurant so you can really get into the zone :)

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.