Agility

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!

**5-a-side Football** practice at Rajská Zahrada artificial grass pitch. No cleats shoes. Maximum of 15 participants for a 3 teams of 5 rotating. **Kick off at 18h00**. Everybody is welcome, no age, gender nor any restriction of any type to join. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/G8NWGjM 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)

**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.

**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/).

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

**The most welcoming dance floor on a Wednesday night in Prague**💃✨ Forró is a rhythmic Brazilian dance known for its warm, welcoming community and very casual dance floor vibes. ✅ **No experience needed** → We kick off at 7:45 PM with a quick introduction to the basics.🕺 ✅ **No partner needed** → We rotate after every song. If you feel like dancing, simply ask anyone taking a break to join you. 👋 ✅ **No dress code** → Wear casual basics. You can dance in socks or barefoot. 👣 ✅ **No pressure** → There is a bar at the venue for lemonade or some liquid courage. Entry is voluntary (usually 150 CZK via cash or QR code). Social dancing is better than the gym, cheaper than therapy and there is no small talk. If you love to move and want to make new friends, simply show up on Wednesday and let's dance!! 💃✨

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/)

Hi All, Come and join us for social running and a coffee! We meet at the main gate of Vystaviste - tram stop Vystaviste Holesovice. We will run in Stromovka. Usually we run around 50mins and it is up to everyone how many kilometres. We welcome all levels of runner. We can all run together or, if there is more of us, we can split into groups and at the end of the run we all meet close to the starting point to go for a coffee to a nice local coffee place (where they also sell cakes and great chocolate). If the weather is great, we can also just sit in one of the outside coffee placces in Stromovka and enjoy the sun. This is where we meet: http://photos2.meetupstatic.com/photos/event/7/7/3/1/600_447930513.jpeg

**Galaksia Praha 23** is letting **players to join** each of **their trainings for free** **as a trial** session to join the **5x5** Galaksia **basketball** team. If you are interested to join the team, you can **sign up here**. Maximum 2 players will be joining the training as trials. Please sign up **to only one training** as only one trial is allowed per player. If you sign up to more than one sessions, only the earliest one will be kept. Once you signed in and are therefore confirmed, **please be at** the address (ZŠ Bítovská indoor basketball court) **at 19h15** to be ready for the training starting at 19h30. After receiving Coaches feedback, we will then reach out back to you following the trial. In case of any Opt-out within 24h of the session, or no show, the trial will be considered passed and it will not be possible to join another training.

**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.

Come and join us for a fun, friendly, but competitive game of 7-a-side. All abilities welcome. Artificial, outdoor pitch all year round, whatever the weather. The game starts at 19:30, please be ready to play by then. This football training event is organized by **Taverners FC z.s.** (IČO 23530791). By taking part in this event, each participant confirms that they are responsible for their own health and physical condition. Participation is voluntary and at the participant’s own risk. Taverners FC is not responsible for any injuries, health problems, loss, or damage that may occur during or as a result of participation in the event. Each participant confirms that they are fit to participate. IMPORTANT! A place is ONLY guaranteed for those who are on the list for the event. If you are on the waiting list, please wait patiently until you are on the actual list. Even if you see free spots on the list, but you are still on the waiting list, a place is NOT guaranteed. Also, we do last-minute subs in the Facebook group every Thursday afternoon: https://www.facebook.com/groups/tavernersprague The game costs 60 crowns. Ways to pay: 1\. With cash\. Ideally\, with exact change\, or no more than a 200 crown note\. 2\. On Revolut \- @simonalperovich / QR code at the game\. Late cancellation after 14:00 on the day of the event costs 60 crowns.

**6-a-side Football** practice at Pražačka Football artificial grass pitch. Maximum of 36 participants for 6 teams of 6. **Kick off at 12h00**. Everybody is welcome, no age, gender nor any restriction of any type to join. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/PjU32Fi 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)

Let's play badminton at Sports Centre Olšanka. We'll meet at 10.40 and play for 60 minutes. If you have a Multisport card please bring it along, as it will make the court free for you and also reduce the cost for others. If you don't have a Multisport card the game will cost you a maximum of 150 crowns, probably much less. I will cover the cost of the court so please bring cash to pay me. There is a small organisation fee of 20 crowns for all players to participate in this event. Racquets can be rented for 50 crowns.

Looking to meet new people in Prague and play badminton in a relaxed atmosphere? Join our social badminton event – perfect for meeting people and having fun while playing. 🏸 All levels welcome 🏸 No experience needed 🏸 We mix players so everyone gets a game This is not a competitive tournament – the focus is on socializing and enjoying the game. 📍 Location: Badminton Aréna Skalka 🕒 Time: 20:00–23:00 💰 Price: 350 CZK / 250 CZK with Multisport Spots are limited. 👉 Reserve your spot here: [https://www.bananasport.cz/sportovni-udalost/14](https://www.bananasport.cz/sportovni-udalost/14)

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.

A WiA Collective Wisdom Exchange At the start of this year, we gathered to look back, set intentions, and imagine the next chapter. This is the follow-up. Not a check-in. Not a progress report. A small, facilitated circle to reconnect with what you said mattered — and honestly explore what’s actually happening now. Together, we’ll explore: • What you intended at the start of this year - and what that looks like three months in • What’s surprised you, supported you, or shifted • What the next chapter needs now that you know what you know If you were at our January gathering, bring whatever you made or wrote — your word, your artifact, your intention. We’ll look at it with fresh eyes. If this is your first time, you belong here too. You’ll start where we all started: with what’s true right now. Optional art materials will be available for anyone who wants to reflect creatively alongside conversation. If you brought something home from January, you’re warmly invited to bring it back. The intention is the same as always: everyone leaves feeling more clear, more connected, and a little lighter. Space is intentionally limited to keep the experience intimate. What to Expect • A small, welcoming circle (not a large meetup) • Structured conversation so everyone has space to speak • Reflection, listening, and lived experience — not advice-giving • Optional creative reflection alongside conversation • A calm, supportive environment Who This Is For Women and underrepresented folks working in or around agile, product, technology, leadership, or organizational change — especially those looking for honest conversation and community beyond frameworks and buzzwords. Good to Know • No preparation required • If you attended in January, we invite you to bring anything you created or wrote (or something that represents your intention at the start of the year) - it’s optional but invited • Participation is invitational; listening is always welcome • Creative activities are optional

Short North Street Skates return Saturday, April 4 and we’re excited to get back rolling together. These weekly rollouts are a chance to move through the city as a group, build community, and create more visibility for skating and small-wheeled movement in Columbus. Details: Meet: 1160 N High St 9:30 AM meet 10:00 AM rollout All wheels welcome We’ll be skating through the Short North and surrounding areas at a steady, social pace. Routes will use a mix of streets and bike lanes, so comfort navigating the city is helpful, but you don’t need to be an expert. If you’ve been meaning to come out, this is a great place to start. Come solo or bring a friend!

**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

Walk for Children - 2026 Save Soil Walkathon in Columbus 🌍 Over 52% of the world soil is degraded and scientists warn we may have only a few decades of fertile soil left. As Sadhguru shares, soil is a living system—and when it degrades, our food, health, and future are at risk. https://www.youtube.com/watch?v=hyT-6qiubd0 🚶‍♂️🌎This Earth Day, Join the Walk for Children-2026 SaveSoil 5K Walkathon here in Columbus and help raise awareness about soil for the future of our children! Every step you take helps: ✔️ 1. Raise awareness in your communities about protecting and restoring soil. ✔️ 2. Supports sustainable food systems. ✔️ 3. Helps secure our children’s future. 📅 Date: April 26, 2026 📍 Location: Scioto Audubon Metro Park Check-in address 400 W Whittier St, Columbus, OH 43215 ⏰ Time: 8:30 a.m. check-in event starts at 9:30 a.m. 👉 Register here: https://www.eventbrite.com/e/walk-for-children-2026-save-soil-walkathon-in-columbus-registration-1986596534713?aff=oddtdtcreator 👉🏼Free and Open to All. Share this message and bring your neighbours, friends & family along to celebrate our planet! Let’s make it happen!

**We'll hike 3.4 miles on the Killdeer and Yellowlegs Trails - both out and back gravel trails. If we want more mileage we can repeat an out and back. Pace of around 3.5 mph, no one left behind and those who want to go faster sure can!** **As always optional lunch after.** **This is the second Metro Park in the lineup - with 21 to go (plus more are being added).** **Also I have a conflict and am not available so have asked Karin to lead!**