Decentralized Systems & Applications

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.

**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!

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

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. Please be ready to play on the hour. We will play on the pitch nearest to the changing room / bar building, and you have access to the changing room before the game. The game costs 80 crowns. Ways to pay: 1\. With cash\. Ideally with exact change\, or no more than a 200 crown note\. 2\. On Revolut \- \+44 7717 452 156 / @thomas3dgu / QR code at the game\. 3\. On Wise \- I will send you a payment link\. \~\~\~ Please note that during this current busy period, 3 spaces are reserved until Monday evening for new players (fewer than 3 Saturday events).

🎉 **SATURDAY SOCIAL VIBES – LET’S CONNECT!** 🎉 Ready to kick off your weekend the right way? Join us this **Saturday from 7:00 PM to 9:00 PM** for an energizing social gathering where the goal is simple: **meet new people, spark real conversations, and turn strangers into friends.** Whether you come solo or with a crew, this is your space to relax, laugh, and vibe with great company. ✨ Expect: * Easygoing icebreakers & fun interactions * A welcoming, no-pressure atmosphere * Good energy and even better people And when the clock hits 9… we turn it up. 🔥 The night continues with an **open party session** — music, dancing, and pure weekend freedom. Stay as long as you like and let the good times roll. 💬 Because sometimes all you need is a little human connection to make your weekend unforgettable. Bring your smile. Bring your energy. We’ll take care of the rest. 😉 #SaturdayNight #MeetPeople #GoodVibesOnly #WeekendEnergy

It’s time for spring cleaning! We’ll be cleaning up in Obora Hvězda for Uklidime Cesko event, one of the largest clean up initiatives in the country. Uklidime cesko promotes cleaning across the country, where individuals and organisations can arrange a clean up in their chosen area to contribute to maintaining their city. Make sure to wear clothes suitable for the park, all cleaning materials and gloves will be provided. After a couple hours of cleaning, we’ll collect all the bags to be disposed of properly. We are inviting you for a coffee or drink in the park after all your hard work! Any questions, reach out to Julia +420 737 890 656

**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 is 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! 🖼️☕️✨ To keep our community friendly and safe, this event is only for those on the **official attendee list**. Please make sure to register. ***

**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)

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.

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!

**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.

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.

**Pickleball Open Play 2v2 – Sun 10.5, 19:30 Start (Prague 13, Sportovní Centrum Jeremi)** Join our 60 minute open play pickleball session open to all. Sunday from 19:30 at Sportovní Centrum Jeremi in Prague 13. Teams are mixed on the spot, just show up and play! 🏓 **2v2 Mixed \| Sunday 19:30–20:30** 📍 Sportovní Centrum Jeremi, Prague 13 🏠 Indoor courts, changing rooms & showers on site 🎾 Rackets provided 💰 **Session fee: 289 Kč** ⚠️ Please wear clean indoor shoes (white soles preferred). **[SIGN UP HERE](https://www.vivasports.cz/pickleball)**

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 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)

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 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.