Flash

**Hosted by Pure Storage** Please note at the Pure Storage office, all meetup attendees will be required to sign a generic NDA used for all office visitors to be able to attend the meetup. Doors are open from 17:30, talks will start 18:00, and we have 2 talks and panel discussion. **1\. Daniel Turecek \(Pure Storage\) \- What is new in Go 1\.26** In this lightning talk, we’ll tour what’s coming in **Go 1.26** (based on the current draft release notes) and why it matters for real-world services. We’ll cover runtime and performance wins like the default **Green Tea GC**, faster **cgo** calls, improved stack allocation, and new profiling options aimed at spotting goroutine leaks. We’ll also look at security and crypto upgrades including 64-bit heap address randomization, the new **`crypto/hpke`** package, and **post-quantum hybrid key exchange on by default in TLS**. Finally, we’ll touch on pragmatic developer-experience changes—from `new(expr)` and richer generics constraints to tooling updates like `go fix`, `pprof` flame graphs by default, and compatibility-oriented module defaults. **2\. Vilibald Wanca \- Nail the Basics \- S01E02** Good Go code starts with a simple, predictable layout. In this talk, we’ll cover the standard approach to structuring Go projects: keep things flat early on, map one package to one directory, and keep tests right next to the code they validate (like `user.go` and `user_test.go`). We’ll also look at common structural mistakes—such as over-engineering too soon or importing Java/Python-style layering that fights Go’s package model—and how to avoid them. Finally, you’ll leave with a handful of quick wins you can apply immediately: formatting and import automation with `gofmt`/`goimports`, stronger feedback loops with `golangci-lint`, and editor setups (VSCode Go extension or GoLand) that make the “Go way” feel effortless. **3\. Panel discussion with our speakers on AI tools and Go development** Join us for a panel discussion with our speakers on how AI tools are changing Go development in practice. We’ll compare real workflows for using assistants to design, code, test, refactor, and review Go services—what actually saves time, what introduces risk, and where humans still need to stay firmly in the loop. Expect practical tips on prompt patterns, maintaining code quality, avoiding “AI-shaped” over-engineering, and integrating AI into existing tooling like linters, editors, and CI. Bring your questions—we’ll keep it candid, concrete, and Go-focused.

🎤Velvet Tuesdays at Czech Inn Bar are back! 🎤 Stand-up Show in English. Join us for the great night of laughs at the first weekly comedy show in Prague! 🍺 Czech Inn Bar, Francouzská 76, Prague. (🚋 stop Krymská). 🚪 Doors opens at 7 pm, show starts at 8 pm ⏰ 🎫 200,- CZK with Welcome shot of rum included! https://goout.net/en/velvet-tuesday-comedy-show/ezkbaic/ 😊 Every week great line-up of comedians, traveling comedians and surprising guest welcomed.

We’ve got another portion of AI talks for you, so come to our second Prague Gen AI Meetup of the year. ## NEW VENUE (very important) **Pracovna & Laskafe** Vlkova 628/36, 130 00 Praha 3-Žižkov ## Venue Schedule * **18:30** Doors open * **18:45** Talks start * **20:45** Talks end * **21:00** Snacks and beer ## What’s On The Agenda * **Talks:** Again, no hype, just the stuff you want to know. * **Snacks and Beer:** Grab a bite and a brew while talking shop. * **Networking:** Meet other people in the field. No fluff, just good tech talk. ## Talks ### Šimon Podhajský (Head of AI @ Waypoint) **The Eval Flywheel: From "Works on My Laptop" to Systematic Quality** Most teams shipping GenAI products have no evaluation system. They have vibes, a few saved prompts, and hope. This talk doesn’t start with “build an eval suite”, it starts with **observability**: if you can’t see what’s happening in production, nothing else matters. From there, we build the **eval flywheel**, a practical pattern where production observability feeds error analysis, error analysis generates eval cases, and eval cases prevent recurrence. Your evaluation suite isn’t something you design upfront, it’s something that grows out of understanding your production failures. ### Ondřej Romancov (Engineering Lead @ Duvo.ai) **Building agents with agents** Duvo is building a platform for AI agents, and we’re running our engineering on agents too. Sharing practical tips and workflows we’ve found useful along the way. Let’s get down to the real talk.

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.

Come and join us for a hike to a city untouched by time and see some of the most unique sights in Czech Republic and Europe. The town became famous for producing the Prague Groschen coins, which were also used elsewhere in Europe at the time, and became the second most important town in the Kingdom of Bohemia. Distance : 10 Km (about 6 hours) Difficulty Rating : Easy to Moderate Tour Highlights: • Professional and friendly guide • Hassle-free day trip to Kutna Hora from Prague • Admission to the "Bone Chapel," a chapel decorated with human bones at the Ossuary of the Cemetery Church of All Saints • Admission to the Gothic Cathedral of Saint Barbora • Admission to the Cathedral of the Assumption of Our Lady OPTIONAL • Hrádek - Czech Museum of Silver (Medieval Silver Mine) More information at https://www.facebook.com/events/1173596144588293/

This is an Argentine **tango course from zero.** You can **come, try one class, and decide** if you want to continue. (!) The solo-followers roles are complete. Please **join as a Leader or in a couple**. **No partner** and **no previous experience** needed. Classes take place every Tuesday, 20:00–21:30. **Only for the Meetup attendees:** **Trial class is 300 Kc** February is the **final month to join this course** before the group closes. You can try the classes in February and then decide if you’d like to stay. To join a class, please make sure to: * complete the registration form (which I will send you) * make the payment * and receive a confirmation from me Classes are available **by registration only**.

If you’re looking for a gentle weekly reset, this class is a beautiful way to unwind. We move slowly, breathe deeply, and let the day melt away. Andrea’s warm, steady voice and the crystal bowls at the end create a feeling of complete softness and calm. This class is perfect if you want something grounding, simple, and nourishing — especially during a busy season. Open to all levels. 200 CZK register through https://vev.co/atma-community-space-praha

**Talks:** *Cyber ​​Resilience Act and Open-Source* *by* *Kayla Eilhart* * how the CRA was created and what it is for * how we almost lost open-source * what the CRA and related legislation and regulation introduce in connection with open-source * what further legislation and regulation related to the functioning of open-source in the EU awaits us * links to information, working groups and how to participate in the legislative process **Schedule** **18:30** – Doors open **19:00** – Talk “A general introduction to AoC” 19:45 – Lightning talks: add yours to [https://bit.ly/prpylight](https://bit.ly/prpylight) after 20:00 – Networking **Good to know** * You don’t have to register for this meetup – the actual attendance is much bigger (40–70 Pythonistas) than indicated in the “Going” list here. * **Cash only payments – club doesn’t accept cards.** * Talks at Pyvo are mostly in Czech but it there’s somebody who doesn’t understand Czech talks are switched to English if the speaker is able to do so. * Besides both soft drinks and beer it's possible to eat at the club. Choice is variable and consists of 4 to 7 options ranging from toast, sausages and soup to fried cheese in a bun, goulash or schnitzel. * Club closes at midnight.

**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)

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.

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!

• 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/)

Step into a real-life fairytale! Join us for a magical day trip to Český Krumlov — a UNESCO World Heritage town and one of the most picturesque places in Europe. With its cobbled streets, colourful houses, riverside views, and a castle perched above it all, this destination feels like stepping back in time. Český Krumlov dates back to the 13th century and grew around its stunning castle, which is one of the largest in Central Europe. The town is wrapped by the Vltava River, creating amazing viewpoints, hidden corners, and perfect photo spots. From medieval streets to lively cafés, it’s the kind of place where you just wander and discover something new at every turn. Expect history, great views, chill exploration, and lots of good memories — all in one day. Whether you’re into sightseeing, photography, or just soaking up the atmosphere, this trip has something for everyone. Distance : 10 km (aprox. 6 hours) Difficulty Rating : Easy to Moderate Tour Highlights: • Hassle-free day trip to Český Krumlov from Prague • Professional and friendly guide • Transportation by air-conditioned bus • Český Krumlov Castle & Castle Complex • Castle Tower (tour) • Old Town (Historic Center) • Latrán Street (One of the oldest streets in the city) • Cloak Bridge (Plášťový most) More information at : https://www.facebook.com/events/2035605153885492/

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 training. 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\.

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

**Back By Popular Request!** Spend an evening exploring the ins and outs of flash photography and off-camera lighting techniques. We will be in the studio for this meeting and will learn how to use supplemental lighting to improve our images! **Meeting Schedule:** 1. 4:00 - Introduction, Meet New Members 2. 4:10 - Old Business 3. 4:20 - New Business 4. 4:30 - Pre-Shoot Briefing/Education 5. 6:00 - Break 6. 6:05 - Continue Presentation 7. 7:00 - Adjourn

**Back By Popular Request!** Once you have spent an evening in the studio, you need some refreshments. Join us at Local Cantina in Bridge Park to recharge your energy! **Meeting Schedule:** 1. 7:10 - Chips and Salsa

Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa. These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all. Swerve Dance & Fitness Complex 640 Lakeview Plaza Blvd A, Worthington, OH 43085 Bachata 7pm-8pm Salsa 8pm-9pm $15 - One Lesson $20 - Both Lessons

Please join the Columbus Atlassian Events Team for an evening program where we show you how we are using the Atlassian tools to track, manage and collaborate with others on our hobbies, From Jira & Confluence and Lego, to Tabletop gaming and Trello to miniature painting and Jira. Join the Columbus Atlassian leaders as they walk you through how the Atlassian tools enhance their passion projects.   We'll go over space structures, lessons learned as we built and tracked our project and how it helped us organize group adventures.   Looking forward to sharing our fun with you!Please take note of the New Location and Time of the event. Pay Parking can be found on street, and in locations marked. Agenda --- Speakers Kimberly Deal - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Kevin Stanley - Columbus Atlassian User Group Leader Moderators Kimberly Deal - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Kevin Stanley - Columbus Atlassian User Group Leader Hosted By Kimberly Deal, Atlassian User Group Leader Kevin Stanley, Chief Everything Greg Sprowls, Agility Lead --- Global Partner Atlassian (http://atlassian.com) Millions of users globally rely on Atlassian products every day for improving software development, project management, collaboration, and code quality. For over a decade, Atlassian customers have come together to network, share ideas, solve problems, and find new ways to use Atlassian products. Today, more than 15,000 people take part in Atlassian community events in more than 30 countries. --- Complete your event RSVP here: https://ace.atlassian.com/events/details/atlassian-columbus-presents-for-the-love-of-atlassian-using-atlassian-to-manage-your-passion-projects/.

Join us for a CMG Discount Tuesday event to see the hilarious, action-packed and absolutely-bonkers-looking sci-fi-action-comedy, GOOD LUCK, HAVE FUN, DON’T DIE! The film follows a man from the future who recruits diners at an LA restaurant to help combat rogue AI. Here’s a description, trailer and our plan for this event: GOOD LUCK, HAVE FUN, DON’T DIE: A man from the future arrives at a diner in Los Angeles where he must recruit the precise combination of disgruntled patrons to join him on a one-night quest to save the world from the terminal threat of a rogue artificial intelligence. The film is directed by Gore Verbinski (Pirates of the Caribbean series) and stars Sam Rockwell, Haley Lu Richardson, Michael Peña, Zazie Beetz, Asim Chaudhry, Tom Taylor, and Juno Temple. TRAILER: https://www.youtube.com/watch?v=MkFW7BZyqkI EARLY BUZZ AND REVIEWS: Early reviews have been stellar with the film earning a 94% positive rating on Rotten Tomatoes! “It offers laughs, thrills, and it’s a thinker; you will not be disappointed.” It’s a “laugh-filled yet incredibly dark and poignant fever dream that pleads for a safer AI tomorrow” and director Gore Verbinski's “command over utter chaos is nothing short of marvelous!” PLAN: Please purchase your ticket for the 6:20pm showing and meet in the bar area between 5:45 and 6:00pm! A smaller theater so advance ticket purchase as soon as possible is advised! (If we fill it up, we can sometimes persuade them to move it to a larger theater.) One you have yours, please list your seat number in the Comments below. Should be a fun one, Dan