Decentralized Systems & Applications

**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)

**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.

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!

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.

Ahoj, na poslední chvíli posílám pozvánku na procházku nedělním odpolednem. Projdeme se Jelením příkopem, Novým Světem, Ořechovkou a výlet zakončíme kávou v moderních Dejvicích. Ujdeme kousek přes 5km, půjdeme středně svižně, abychom nepřimrzli. Sejdeme se na Malostranské - po výstupu z metra přejděte tramvajovou kolej, je tam socha okřídleného lva (viz mapa). Budou potřeba pohodlné botky. Prosím přijďte včas. Pokud víte, že budete mít víc než 5min zpoždění, dejte vědět do zprávy, díky! Hello, this is a very last minute invitation to a Sunday walk. This time we will discover Jelení příkop, New World and Ořechovka. Our journey will end in modern coffee shop in Dejvice. The meeting point is at Malostranská - after you leave the underground, traverse the tram rail and reach the statue of lion with wings (please see the map below). Walking shoes will be needed. Please be on time. If you suspect delay of more than 5min, please leave a message. Thank you!

Hello, we are starting SU&W at Scouts Institute this Sunday! Please find us at a table across from the cafe. The event starts at 12, and the writing starts at 12:15! We will have 45 minutes of writing, followed by a 15 minute break. Then another 45 minutes of writing. Please purchase something to support the cafe and the space ☺️ Follow us on Whatsapp! https://chat.whatsapp.com/HeZDsZNFD8BKn8JohRlbkI

Who can attend this meetup: The tour is an introduction to Prague and is mainly for expats and visitors to our city but everybody who would like to join is invited. ***Important***, please also fill in the booking form on our [website](https://freewalkingtourprague.eu/en/schedule) if you are planning to come (otherwise we will not expect you). Description: Meet us by the Powder Tower, the historical gate to the Old Town and starting point of the Royal Route. Then have an educative walk through the narrow and picturesque streets of the historical center of Prague. Enjoy the unique diversity of architectural styles from Gothic to Art Nouveau. See some of the most interesting sites and get to know fascinating facts and legends of the 1000-year old capital of Bohemia. End the tour at the riverside 5 minutes away from the Charles Bridge, from which you can continue the tour on your own (or again with us) towards Malá Strana or Prague Castle. ====== Meeting point: We will be standing by the Powder Tower at the side of the Namestí Republiky square with a green umbrella in hand :) Map: https://goo.gl/maps/tzqKpZ2945S2 Price: there is no fixed price, you will be able to decide yourself how much you value the tour. If you don't know how much is best (and can afford it) we recommend 200Kč, but it really depends on you how much you contribute. Join us also on our [Facebook profile](https://www.facebook.com/freewalkingtoursprague/) :) and if you are travelling to other cities check out our friends at the [Free Tour Community website](https://freetourcommunity.com/). For any questions, please contact us at info@freewalkingtourprague.eu. Unfortunately, the meetup application does not always send us phone notifications. Reminder - only people who booked on our [official free walking tour website](https://freewalkingtourprague.eu/en/schedule) can join the tour and if the tour shows fully booked on the website it means there are no free spots. The meetup list doesn't count in this case. We look forward to meeting you, Michal, Amanda, Lana, Iva & Chris

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.

Ahoj, na poslední chvíli posílám pozvánku na procházku nedělním odpolednem. Projdeme se Jelením příkopem, Novým Světem, Ořechovkou a výlet zakončíme kávou v moderních Dejvicích. Ujdeme kousek přes 5km, půjdeme středně svižně, abychom nepřimrzli. Sejdeme se na Malostranské - po výstupu z metra přejděte tramvajovou kolej, je tam socha okřídleného lva (viz mapa). Budou potřeba pohodlné botky. Prosím přijďte včas. Pokud víte, že budete mít víc než 5min zpoždění, dejte vědět do zprávy, díky! Hello, this is a very last minute invitation to a Sunday walk. This time we will discover Jelení příkop, New World and Ořechovka. Our journey will end in modern coffee shop in Dejvice. The meeting point is at Malostranská - after you leave the underground, traverse the tram rail and reach the statue of lion with wings (please see the map below). Walking shoes will be needed. Please be on time. If you suspect delay of more than 5min, please leave a message. Thank you!

Hello, we are starting SU&W at Scouts Institute this Sunday! Please find us at a table across from the cafe. The event starts at 12, and the writing starts at 12:15! We will have 45 minutes of writing, followed by a 15 minute break. Then another 45 minutes of writing. Please purchase something to support the cafe and the space ☺️ Follow us on Whatsapp! https://chat.whatsapp.com/HeZDsZNFD8BKn8JohRlbkI

Who can attend this meetup: The tour is an introduction to Prague and is mainly for expats and visitors to our city but everybody who would like to join is invited. ***Important***, please also fill in the booking form on our [website](https://freewalkingtourprague.eu/en/schedule) if you are planning to come (otherwise we will not expect you). Description: Meet us by the Powder Tower, the historical gate to the Old Town and starting point of the Royal Route. Then have an educative walk through the narrow and picturesque streets of the historical center of Prague. Enjoy the unique diversity of architectural styles from Gothic to Art Nouveau. See some of the most interesting sites and get to know fascinating facts and legends of the 1000-year old capital of Bohemia. End the tour at the riverside 5 minutes away from the Charles Bridge, from which you can continue the tour on your own (or again with us) towards Malá Strana or Prague Castle. ====== Meeting point: We will be standing by the Powder Tower at the side of the Namestí Republiky square with a green umbrella in hand :) Map: https://goo.gl/maps/tzqKpZ2945S2 Price: there is no fixed price, you will be able to decide yourself how much you value the tour. If you don't know how much is best (and can afford it) we recommend 200Kč, but it really depends on you how much you contribute. Join us also on our [Facebook profile](https://www.facebook.com/freewalkingtoursprague/) :) and if you are travelling to other cities check out our friends at the [Free Tour Community website](https://freetourcommunity.com/). For any questions, please contact us at info@freewalkingtourprague.eu. Unfortunately, the meetup application does not always send us phone notifications. Reminder - only people who booked on our [official free walking tour website](https://freewalkingtourprague.eu/en/schedule) can join the tour and if the tour shows fully booked on the website it means there are no free spots. The meetup list doesn't count in this case. We look forward to meeting you, Michal, Amanda, Lana, Iva & Chris

*** **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:** * 17:00 – Welcome & introductions * 17:15 – Tea tasting session (multiple varieties) * 18:15 – Open discussion, Q&A, and social time * 19:00 – 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! ***

Third time’s the charm! 🧶 Join us for our third Prague knitting & crochet meetup and keep the creative energy going. Bring your yarn, hooks, needles, half-finished projects, ambitious new ideas, or even just your curiosity. Expect relaxed vibes, good conversation, and plenty of stitch-and-chat time. As always, all skill levels are welcome. Let’s keep building our cozy little yarn community together.

## (Lesson 2) ## What to expect Project Equilibrium is an in-person introduction to disciplined, rule-based trading automation. This first event is designed to be clear, practical, and approachable no hype, no pressure, and no prior technical background required. ### Why we meet (two-session structure) This meetup is structured as **two lessons**: **Lesson 1 — The “Why” (mindset + framework)** * What Project Equilibrium is (and what it is not) * Why we focus on process, rules, and execution discipline * What “24/7 execution” means in practice * Q&A and open discussion **Lesson 2 — The “How” (step-by-step setup)** * A simple walkthrough of the basic tools you need * Step-by-step guidance to install and prepare the required exchange apps/accounts * A clear checklist to be ready for future sessions (You won’t be left alone—everything is explained calmly and in order.) ### What to bring To make the second lesson smooth, please bring: * **A smartphone** (for authentication and exchange app setup) * **A laptop** (for the setup steps and configuration) If you only have one device, you can still join Lesson 1. The setup lesson is simply easier with both. ### Who this is for * People curious about algorithmic execution and portfolio discipline * Beginners who want a structured approach * Experienced traders who want more consistency and less stress ### Agenda * Welcome + introductions * Lesson focus of the day (Why / How) * Guided walkthrough (where applicable) * Q&A + next steps ### How to find the group * Arrive a few minutes early and look for the **Project Equilibrium** group. * I will be there to welcome attendees if you’re unsure, simply ask the venue staff for the Meetup group name.

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

## **Columbus Bitcoin Meetup – Event** Join us for another great evening dedicated to Bitcoin, learning, and community. We will be gathering in the private room at Olentangy Brewery for an evening of conversation, education, and fellowship with fellow Bitcoiners. This special event will feature three guest speakers sharing insights from across the Bitcoin ecosystem. ### **Guest Speakers** **Lindsay Faust** Relationship Manager at River **Andrew Tilmann** CEO of the Midwest Bitcoin Summit **Carlos Estrada** Founder of Coin Vigilante In addition to speaking during the event, Andrew Tilmann will also be available for a meet and greet. This will be a great opportunity to ask questions about the upcoming Midwest Bitcoin Summit, taking place September 23 and 24 at the Columbus Convention Center. ### **Midwest Bitcoin Summit Discount** Early Bird pricing ends **April 1st**, but you can still save **21%** by using the promo code: **COLUMBUS** Use the link below to apply the discount: [https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus](https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus) ### **Event Details** This will be a three hour event, with speakers beginning just before 7:00 PM. There will be plenty of time afterward for networking, meeting new friends, and continuing the conversation. Food will be provided. We look forward to seeing you there! ***

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

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.

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

**The Data-Driven Brand: Using Analytics to Shape Perception** Can you use analytics to improve tacos? This being CBUSDAW, we think the answer is probably “yes”, but we’re not sure how to implement or test this theory. For our April meetup we’ve got Sara Kear, CMO of Condado Tacos, to investigate this delicious question. Sara will explore how she blends quantitative data and qualitative customer feedback to shape brand positioning and drive business decisions. We all know that marketing and analytics go way beyond attribution. Sara will show how Condado uses customer insights to inform product and pricing strategy. She’ll also highlight how Condado leverages customer feedback at scale to influence operational priorities, positioning marketing as the voice of the customer across the organization. In the last 12 years Condado has gone from one location in Columbus to 52 locations across 10 states, so we’re guessing there’s more to that growth than really good guac (though the guac probably helps). Ultimately, this talk focuses on the intersection of art and science—using data to inform creativity and build a brand that resonates with customers in a measurable way. **About Our Speaker** Sara Kear is Chief Marketing Officer at Condado Tacos, where she oversees brand, restaurant design, menu and pricing strategy, off-premise including catering, and customer data strategy. Since joining in 2021, she has helped grow the brand from 19 to 52 locations while building a data-driven marketing organization focused on loyalty and customer insights. Condado has since been named to the Inc. 5000, recognized as Breakout Retailer by Chain Store Age, and consistently ranked among FastCasual’s Top 100 Movers & Shakers. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)