Decentralized Systems & Applications

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. 🎲✨

**The most enjoyable dance friending event on a Friday night 🌤️💃✨** This is an OPEN-AIR event! We are dancing outdoors on a soft athletic surface. Restrooms and changing areas are available at a small restaurant nearby. 🚻 The night starts at 7:00 PM with chill music, socializing, and basic footwork. If you want to level up your dancing, be there at 7! Later, we flow into casual dancing, mixing European classics (Waltz, Polka) with modern Balfolk and chill Latin vibes (Forró). ✅ **No experience needed** → Come at 7 PM to learn the basics! 👣 ✅ **No partner needed** → We rotate! Feel free to ask anyone taking a break. 👋 ✅ **No dress code** → Wear comfy sneakers or go completely barefoot. 👟 ✅ **No pressure** → As long as you can sway to the rhythm, you belong! 🌟 ✅ **Free entry** → If you love the vibe, hit us with a 5-star review 🌟 or leave a voluntary tip via QR code (suggested 200 CZK). If you love to move and want to make new friends, simply show up on Friday and let’s dance!! 💃🔥 *Tančírna (pronounced tahn-cheer-nah) comes from the Czech word "tančit" (to dance) and literally means "a place for dancing".* **Pro-tip:** Pack a water bottle to stay hydrated 💧 and a hoodie for when the sun goes down! Ordering drinks/food at the local restaurant is possible, but it breaks the flow, so we usually do it after we wrap up. 💃🔥

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 us for a movie night at **Kino Světozor** on **Friday, May 8th.** We’ll meet at **20:00** ***at Světozor bar*** before the film starts at **20:30**. I will be waiting at the cafe, so please look me up (reference my meetup photograph). We'll be watching *[If I Had Legs I'd Kick You](https://www.kinosvetozor.cz/en?cinema=3%2C1%2C2%2C9%2C7&hall=1%2C2%2C3%2C24%2C34%2C35&sort=sort-by-data&projection=49334),* a 2024 raw drama about a woman's life crumbling around her. Come enjoy this screening and stay for a drink and a chat about the film afterwards! **NOTE:** Please buy your own tickets (available online: [tickets](https://tickets.colosseum.eu/union_film_s.r.o._(prazska_kina)/standard/Hall/Index/4339097/lM4FIkJuKaDO2PrW6UwGqA_rov__rov__xcodex_AGA1gFbU4wjT9SBN3D0Tctd5qhqOOXPLUEXJkQ__?)). (I got row 3, seat 5) **Kind request:** If you register to attend but later cannot make it, please update your RSVP in time — thank you!

Sing for yourself, Sing for someone, Sing for the moment 🙂Choose your song & let your bathroom artist out :D coz everyone can sing... 👉 Every Friday, we welcome you to join our International Karaoke Nights. Singing or not singing, we guarantee you a lot of fun, making new friends, and meeting international people. 🏅We organise the biggest social events in the Czech Republic where you enjoy amazing cocktails and a variety of drinks, with happy hours waiting for you. 📍LOCATION Tequila Tales Bar & Music Club Újezd 19 118 00 Prague, Czech Republic (Nearest tram stop- Hellichova & Ujezd) ❓Questions❓ Write to https://www.instagram.com/tequilatales_prg/

Hola tod@s! Tenemos otra reunion este viernes en Cafedu! Sois muy bienvenidos!

Let's play padel at the excellent facilities at Sky Sport Prosek. We'll meet at 13.40 and aim to play for 60 minutes. The court costs 720 crowns for 60 minutes, split between us. It will be cheaper if you have a Multisport card. Racquets can be rented for 50 or 100 crowns. This event is aimed for beginners or people with limited padel experience. Please don't join if you consider yourself to be good. :)

Join **RSP Adventures** for a day where castles meet cliffs and river trails lead you through one of the Czech Republic’s most captivating landscapes, and discover the dramatic beauty of the Ohře River valley on an unforgettable hiking day into Loket. This enchanting stretch of landscape, shaped over millions of years, lies between Karlovy Vary and Loket, within the protected wilderness of the Slavkov Forest Protected Landscape Area. Our hiking route follows scenic river paths, forested ridgelines, and panoramic viewpoints, offering breathtaking vistas of cliffs, woodland, and the iconic medieval silhouette of Loket Castle. Every step combines raw nature with centuries of history, making this adventure a perfect blend of exploration, geology, and fairytale scenery. Distance : 13km (about 7 hours) Difficulty Rating : Easy to Moderate **Tour Highlights:** • Professional and friendly guide • Hassle-free day trip along the romantic valley of the Ohře River • Short tour of Karlovy Vary. • Visit Diana´s tower. • Walk around the Spa forest "lázeňskými lesy" • Visit the remains of an early medieval Slavic settlement Starý Loket • Visit the Tašovice fortified settlement (evidences the oldest Slavic settlement in the area) • Discover the Svatoš Rocks (Svatošské skály) • Tour of the castle Loket • Walk across the Swing bridge • Visit to the family brewery Saint Florian. • Visit the natural outdoor amphitheatre. You can pay for the trip via: • Bank transfer: 7392420507/6363 • Revolut: @augustetqc • Wise: @agustind162 **More information at :** [https://www.facebook.com/events/1477033480578201](https://www.facebook.com/events/1477033480578201)

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.

**Hey art lovers,** It is a truth universally acknowledged, that a person in possession of a free Sunday morning must be in want of some fine art. I’m playing this one a bit "last minute," but honestly, some things are too good to miss. So I’ve decided to treat myself (and you!) to something truly special this Sunday. We are heading to the **Kodl Gallery** for their spectacular **pre-auction exhibition**. This is a rare chance to see world-class masterpieces from private collections before they go under the hammer and disappear into private homes again. It’s high-end art, but without the museum queues. The exhibition of free of charge. 📍 **The Plan:** * **The Gallery:** We’ll spend around 90mins soaking up the beauty of 19th and 20th-century art. * **The Secret Walk:** If we’re in the mood, we’ll take a leisurely stroll through the hidden, quiet backstreets of the Old Town—away from the tourist crowds. * **The Coffee Finale:** We’ll finish at a charming hidden coffee bar to chat about our favorite pieces over a caffeine fix and maybe something sweet. 💰 **Contribution:** **50 CZK** (A small contribution to help cover the Meetup platform fees). No pressure, just good vibes, great art, and even better company. It’s the perfect way to recharge before the new week kicks in. Can’t wait to see you there! 🖼️☕️✨ ***

**The Easiest room to walk into on a Saturday night** 🤩🌍 We are a welcoming, high-energy tribe of locals, newcomers, and expats alike. Half the room is our stable core, the other is always brand new! We skip the awkward small talk and go straight for REAL connections ✨, naturally transitioning into a great party 🤩 later on. Our rules are simple: No pressure, no city masks, and absolutely no standing alone. Just grab a drink 🍹 and jump right in. You’ll leave feeling energized, connected, and a little bit more like a true Praguer. 😎🤙 👉 If you want to dive deeper, just show up and JOIN our LOCAL WhatsApp community of 250+ Praguers!

**6-a-side Football** practice at Pražačka Football artificial grass pitch. Maximum of 18 participants for 3 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)

ENG🇬🇧 Hello, We invite you to an open meeting for anyone interested in business, projects, and personal growth. This is not a lecture or a formal event, but a live space for communication in an open mic format. Here you can meet people, discuss ideas, share your experience, or simply gain a deeper understanding of how business and projects work. The meeting is suitable both for entrepreneurs and for those who are just starting their journey or want to explore this field. You can come with an idea, a project, or simply curiosity — and find people you’d like to grow with. We’ll talk about marketing, economics, project development, and modern opportunities, but most importantly, we’ll create a space for dialogue and meaningful connections. If this format of thoughtful communication and exchange resonates with you, We’ll be glad to see you there. CZ🇨🇿 Dobrý den, Zveme vás na otevřené setkání pro všechny, které zajímá byznys, projekty a osobní rozvoj. Nejde o přednášku ani formální akci, ale o živý prostor pro komunikaci ve formátu otevřeného mikrofonu. Můžete se zde seznámit s novými lidmi, sdílet své nápady a zkušenosti nebo lépe pochopit, jak funguje svět byznysu a projektů. Setkání je vhodné jak pro podnikatele, tak i pro ty, kteří jsou teprve na začátku své cesty nebo se chtějí do této oblasti více ponořit. Můžete přijít s vlastním nápadem, projektem nebo jen se zájmem — a najít lidi, se kterými budete chtít růst. Budeme mluvit o marketingu, ekonomice, rozvoji projektů a současných příležitostech, ale především vytvoříme prostor pro dialog a navazování nových kontaktů. Pokud vás tento formát smysluplné komunikace a sdílení oslovuje, budeme rádi, když dorazíte.

This open seminar by Albert Hoffmann explores how different people and traditions have approached the question, “How should we live?” We will look at ideas from philosophers, thinkers, and religious traditions and explore different answers from various cultures and time periods. The seminar is intended as an invitation to reflection rather than a definitive answer. About Albert Hoffmann: https://sophonautik.ch/english/ It will take place in the “17. listopadu” dormitory next to the Faculty of Humanities. The dormitory has two buildings, and the seminar will take place in the northern one. Let me know when you are next to it, and I’ll pick you up. If you’re anywhere else and have trouble finding it, just let me know.

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

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.

We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

Join us for a practical, beginner-friendly guide to choosing the right large language model. We’ll compare major models like ChatGPT, Claude, Gemini, and Llama, talk about when to use hosted APIs versus local models, and break down the tradeoffs around cost, speed, quality, privacy, context windows, coding ability, and reliability. You’ll leave with a clearer mental model for picking an LLM based on your actual use case instead of hype, benchmarks, or brand names. No deep AI background required. 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.

Join the CONNECTED Westerville Mastermind Group for a dynamic afternoon of B2B networking! This event is perfect for professionals looking to expand their business connections, share insights, and foster collaboration within the community. Whether you are a seasoned entrepreneur or just starting out, this event offers a valuable opportunity to exchange ideas, build relationships, and grow your network in a supportive environment. Connect with like-minded individuals, explore potential partnerships, and discover new opportunities for professional growth. Don't miss out on this chance to enhance your business network and take your career to the next level with CONNECTED Westerville Mastermind Group! We meet the 4th Monday of every month from 11am-1pm. Welcome and general networking from 11am - 11:30am with core meeting 11;30 - 12:30 and a final round of networking from 12:30 - 1pm.

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message \*\*Chris (the organizer)\*\*with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.linkedin.com/company/transformlabs/) Sign up also accessible via [Transform Labs Luma](https://luma.com/transformlabshq)