Decentralized Systems & Applications

Looking for an authentic way to experience Prague while meeting new people from around the world? Join us for a unique evening exploring **Czech beer culture** through some of Prague's most authentic pubs and breweries. This is not a pub crawl—it's a cultural experience where you'll discover local traditions, hear fascinating stories, taste great beer, and connect with fellow travelers, expats, and internationals. 🍺 Visit 5 authentic Czech pubs and breweries 📖 Learn Czech beer traditions and etiquette 🍻 Taste traditional and modern Czech beers 🥨 Czech beer snacks included 🏙️ Hear stories about Prague, brewing, and local culture 🌍 Meet international people and make new friends Whether you're new to Prague, visiting for the weekend, studying abroad, or have lived here for years, this experience offers a fun and relaxed way to discover one of the most important parts of Czech culture. 📅 Every Friday ⏰ 18:00 – 22:00 💰 890 CZK per person 👥 Maximum 10 participants for a more personal experience ⚠️ Minimum 4 participants required to run the tour What makes Czech beer culture so special? Come and find out while enjoying a memorable evening in great company. You can pay for the trip via: • Bank transfer: 7392420507/6363 • Revolut: @augustetqc 🍻 ***Real Beer. Real Stories. Real Prague.***

AKCE JEN PRO ZVANÉ 🤖 Ahoj, v rámci setkávání Research Tuesday jsme naplánovaly Friday special. Cítíme už nějakou dobu, že naše researchová komunita má potřebu sdílet, co nového nám do práce přinesla umělá inteligence, jak nám mění výzkum pod rukama. Chceme si povídat, chceme si navzájem sdílet, chceme vytvořit mapu, kam si zaneseme, v jakých fázích výzkumu a jakým způsobem používáme AI a co nám funguje dobře a co až tolik ne. Pracovat a sdílet se bude převážně v menších skupinkách a výstup se na konci odprezentuje ostatním. Mapu pak pravděpodobně dáme k dispozici komunitě. Pátek 19. června 9 - 12 do Slevomatu v pražském Karlíně. Setkání se koná pouze offline, a kapacita je omezená na 30 pozvaných. Žádná velká příprava netřeba, jen teď dávej víc pozor, kdy a jak v rámci výzkumného workflow používáš AI a jak ti to funguje, ať se o to můžeš podělit s ostatními. **🕒 Agenda:** * **08:30 AM** – Otevření dveří & ranní networking * **9:00 AM** Workshop * **12:00 PM** – Závěr & možný společný oběd **🧸 Hlídání dětí na vyžádání:** Research Tuesday stavíme na tom, že profesní rozvoj má být přístupný všem. Chceme podpořit i rodiče malých dětí, aby mohli zůstat v kontaktu s oborem a potkávat se bez zbytečných překážek. **Máte zájem o hlídání?** Rádi ho na místě zajistíme, ale potřebujeme vědět, jestli o něj bude zájem. Dejte nám vědět v komentářích nejpozději do pondělí 15.6. do 8:00, jestli službu využijete a pro kolik dětí. Podle toho rozhodneme, jestli ji zajistíme. **Rezervace:** Zarezervuj si místo včas. Pokud se ti plány změní, prosíme, uvolni místo ostatním. **Těšíme se na známé tváře i nové účastníky!** Běla, Ivana, Lucie

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: 50 CZK if you drink something, 100 CZK if not (includes access to games and rule explanation) Friday nights don’t have to be loud. They can be legendary. 🎲✨

Sraz pro všechny zájemce o nemonogamní vztahy. Formou neformálního setkání nad dobrotami, které si sami přineseme, budeme diskutovat cokoliv, co nás zrovna bude zajímat. Setkání je vhodné jak pro zkušené nemonogamní/polyamorní osoby, tak pro ty, kteří se teprve chystají podniknout první zvědavé krůčky mimo tradiční monogamní hranice partnerských vztahů. Nejedná se o speed dating, ani jinou formu setkání organizovaného za účelem seznamování. (Ale samozřejmě seznamování není zakázáno) Sejdeme se tentokrát v Riegrových sadech, místo setkání bude označené oranžovým praporkem. [https://maps.app.goo.gl/y3hJwu9q4h7AotjZA](https://maps.app.goo.gl/y3hJwu9q4h7AotjZA)

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)

**The most enjoyable way to meet new people without going clubbing! ✨** This is an OPEN-AIR event! 🌤️ We jump straight into simple group dances so everyone is moving and laughing together right from the start. Later, we spend 15 minutes learning a few easy steps—mixing European classics, modern folklore, and chill Latin vibes. There are no rules to follow or pressure to perform. It’s just a relaxed evening to enjoy great music, move your body, and make new friends. **✅ No experience needed** → As long as you can sway to the basic rhythm, you belong. **✅ No partner needed** → We use fun group mixers and rotate constantly. 📍 **Vítkov**: https://maps.app.goo.gl/k2mkwRY2b133NQJx8 **🕒 SCHEDULE:** 18:50 - Arrival **19:00 - The Music Starts! 🎶** 19:45 - 15 minute class 21:00 - Wrapping up + Socializing (Bistro Vítkov) After we wrap up we go to a restaurant/bar close by for chill socializing. 🎟️ Cost: FREE - If you love the vibe, hit us with a 5-star review. No words needed. 👟 Wear comfy sneakers or go completely barefoot. Pack a water bottle to stay hydrated and a hoodie when the sun goes down. Tančírna (pronounced tahn-cheer-nah) comes from the Czech word "tančit" (to dance) and literally means "a place for dancing". If you love to move and want to make new friends, simply show up on Friday and let’s dance!! 💃

🏸 Friday Badminton Social – No Partner Needed Looking for regular badminton in Prague without needing your own partner or group? Join us for an evening of social badminton at HAMR Braník, where players rotate throughout the night so everyone gets plenty of games and meets new people. Whether you're a complete beginner or a regular player, you're welcome to join. ✅ All skill levels welcome ✅ Come solo or with friends ✅ Organized player rotations ✅ Meet new people through sport ✅ 2.5 hours of badminton ✅ Multisport accepted Our goal is simple: maximize playing time while keeping the atmosphere relaxed, social and fun. Throughout the evening, players rotate partners and opponents, making it easy to meet people and enjoy a variety of games regardless of your level. 🏸 Plenty of badminton ⚡ Great energy 🤝 No pressure — just play Many of our players join alone, which is exactly why this format works so well. 📍 HAMR Braník, Vltavanů 1542, Prague 4 Hosted by Hải Long 👋 ⚠️ Meetup RSVP alone does not reserve your spot. To secure your place, please register here: [https://www.bananasport.cz/sportovni-udalost/262](https://www.bananasport.cz/sportovni-udalost/262) See you on court!

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

**The ABSOLUTE BEST place to be on a Saturday night in Prague! 🤩🍹** Every Saturday, we take over a stunning venue right in the city center and give you **total freedom to mingle at your own pace**. There’s no hand-holding, name tags, or stiff corporate icebreakers here—just a room full of great people skipping the small talk and **sparking real connections**. ✨ During peak hours, the room gets **TOTALLY MAGNETIC** and sometimes even beautifully chaotic. And to be honest, we love it exactly like this! Bar Nomads is all about pure social flow! ⚡🔥 If that’s your vibe, drop the city masks and dive headfirst into our lovely Hoffa madness. You’ll leave feeling energized, deeply connected, and a little bit more like **a true Praguer.** 😎🤙

\*\*\*\*\* 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.

Grab your favourite fighter and join us for an evening of Unmatched at Dear Watson in Karlin! Come and play this fun, competitive skirmish game. Bring your own fighters if you have them or play with your own. If you've never played before, don't worry, we can teach you how to play. There is a link to a brief introduction video in the description so you can decide if this game is for you. We will be in the downstairs area of Dear Watson.

**The BEST Board Game Event In Prague 🤠🍺** Every Sunday, we offer a curated menu of 4–5 featured strategy games (check out the event photos below for this week's lineup!), a non-stop open table for casual games, and a vibrant space for chill socializing. **Arrive at 18:00, grab a drink, and meet Luboš** (our Game Master). Tell him your vibe and experience level, and he’ll match you with the perfect table. Whether you want to lock into a long-format featured game, jump into fast-paced open gaming, or just drop by for drinks and conversation, there's a perfect spot for you! 🚀✨ 📍**The Down Under:** https://maps.app.goo.gl/uwi9GeuY27BkqnPn9 **✅ 100% FREE Entry:** No partners, experience, or games needed. We handle all the table matchmaking, setups, and rules! **✅ 19:00 Sharp:** The long-format featured games lock in and begin. *Arriving late or leaving early? You can jump into the Open Gaming Zone at any time.* 🎲 **✅ Support the Venue:** There is no entry fee, so please support the pub by ordering some of their awesome food and drinks! 🍔🍺 Hosted in English. Casual snapshots are taken during the event.

NOTE THE TIME CHANGE TO 9AM 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

This Saturday, we managed to secure 9 exclusive spots for a **GUIDED TOUR inside the SECRET VAULT** of the Czech National Bank. 🏦✨ You’ll get an exclusive behind-the-scenes look at the vault and stand face-to-face with the **LARGEST GOLD COIN** in Europe—a mind-blowing 100 million CZK in one, single gold piece. 🪙 We'll also dive into the history of the Czech koruna and get the inside scoop on how international banking actually works. **Spots are limited.** Please only RSVP if you are 100% sure you can make it on time! **📍CNB Visitor Center:** [https://maps.app.goo.gl/jvRYFsv8B38xB7ev6](https://maps.app.goo.gl/jvRYFsv8B38xB7ev6) **🕒 THE PLAN:** * **12:45 - MEET UP:** Right in front of the visitor center[https://maps.app.goo.gl/CsxNWgH1N5DquY3u7](https://maps.app.goo.gl/CsxNWgH1N5DquY3u7) * **13:00 SHARP!** - **GUIDED TOUR STARTS!!** \- Don't be late\, the vault doors wait for no one\! * **14:30 - STROLL & CHILL** \- Wrapping up the guided tour and exploring the rest of the exhibition\. * **15:30 - MOVE OUT** \- Heading over to the Atrium Žižkov Garden Party\! \- [https://www.meetup.com/prague-together/events/315266453/](https://www.meetup.com/prague-together/events/315266453/) **🎟️ FREE ENTRY** 🔗 Official Event Page: [https://nc.cnb.cz/pub/en/exhibitions/people-and-money-exhibition-in-prague/#popis](https://nc.cnb.cz/pub/en/exhibitions/people-and-money-exhibition-in-prague/#popis)

*Sorry for the 2 month break but I had to deal with some family member health issues, but we are now back!!* **LOCATION - THE DAILY GROWLER -** **2812 Fishinger Rd, Upper Arlington, OH 43221** Over the years, we’ve heard two requests constantly: 1. A place that was quieter and possibly private. 2. “I wish they accepted Bitcoin.” We’ve finally found a solution to these requests with The Daily Growler. We’ll have access to their private room, and you’ll be able to pay your tab with Bitcoin. Join us for a fun and relaxed social event! Enjoy delicious food and drinks as we chat about the latest news in the Bitcoin world. Everyone is welcome, whether you're looking for guidance, have questions, or just want to meet like-minded people. These social evenings are a great opportunity to make new friends and enhance your experience at the larger events throughout the year. We look forward to seeing you there! PSA: If the attendee RSVP seems low, keep in mind that most of our attendees come from X and not [meetup.com.](http://meetup.com./) You are welcome to come and become a part of our online community. Recordings of past guest speakers are available on our YouTube channel [https://www.youtube.com/@columbusbitcoin](https://www.youtube.com/@columbusbitcoin)

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).

Most people still use AI like a search box: type one question, get one answer, repeat. But the next step is AI agents: systems that can take a goal, break it into steps, use tools, remember context, and produce useful work for a human to review. In this beginner-friendly session, we’ll demystify what AI agents actually are — without hype or jargon. We’ll walk through practical examples of how agents can help with research, planning, writing, coding, operations, and personal productivity. We’ll cover: * What makes an AI “agent” instead of just a chatbot * How agents break tasks into steps * Where agents are genuinely useful today * Where they fail, hallucinate, or need human review * How to design simple AI workflows for your own work * A live demo of an AI agent-style workflow from start to finish No coding experience required. This is for anyone who wants to understand where AI tools are going and how to use them more effectively right now. 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.

In this local meeting, you will discover knowledge that you can use to get over the past. The key to improving your personal motivation, self-confidence, and happiness is to get over your painful memories. When you become free of your past, you will be free from stress, anger, anxiety and depression. Studies show that negative emotions can affect your health. By being free of negative emotions, believe it or not, you will most likely even look younger, feel more energetic, and become healthier! Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is brought to you by the Dianetics and Scientology life improvement center.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

We're going to GameArena! We'll be in-person at the GameArena Gateway for our monthly COGG Prototype and Play event. Come to play and showcase your games! We're back in the upper levels of the catwalk area. It'll be packed with lots of camaraderie playing your game(s) and other's games on the 2nd floor. Light snacks and water provided but you can buy food and drinks at the bar (alcoholic drink ID required). [www.game-arena.co](http://www.game-arena.co/) **Attendees:** Don't have a game to show? Not a problem! All are welcomed and invited from all ages and backgrounds. The more we can have to play test our games is all the better! **Developers:** Do you have a game that you would like to get critical feedback on? Would you like an excuse to work on a game with other talented artists, programmers, musicians, designers, and writers? Digital, table-top, non-experienced developers, and the like are welcomed! We'll provide signage for your game to help others learn more about your work. Wifi, outlets, tables, and seats (though standing tables also) are available. Come to the Prototype and Play workshop to collaborate and meet local game developers for an evening of epic and raw game play fun! Play works-in-progress, show off your own game, work with others to add polish to a game, or even lend your talents to other fellow developers. For this event, light snacks from the bar and water will be provided! Though you can purchase you own if you like at the bar: [https://www.game-arena.co/menu](https://www.game-arena.co/menu) Can use South Garage at the Gateway with a $5 voucher on your way out. 75 E 11th Ave, Columbus, OH 43201 [https://maps.app.goo.gl/UwgveUYG37Jy7RtS9](https://maps.app.goo.gl/UwgveUYG37Jy7RtS9) If you have any questions or comments, as always, feel free to reach out to us at [info@thecogg.com!](http://info@thecogg.com!/)