Decentralized Systems & Applications

Hey everyone, here we go again with our next event on Monday! I will host this session, so please follow my instructions! 🙏 IMPORTANT NOTE: Free Cancellation is only until Saturday, 18:00 PM. If you cancel after that without noticing the host, You must pay the fee to compensate the court and shuttlecock. WAITLISTED ATTENDEES: If you are in the WAITLIST, Do Not Come. Level of expectation : intermediate - advanced Venue: HODOS TAMAS Badminton Hall Our venue does not provide rackets, which means that you'll have to bring your own racket! There are 3 courts booked for us for 3 hours from 12:00 till 15:00. Showers and changing rooms are available! Extra Note Attendance fee: We will divide the court fee by the number of people showing up. However, in certain circumstance, when the number of people cannot is less than and equal to 12, The Host deserve to contact the people who canceled after the time designated cancellation time. The expected fee is usually around 2000-3000 HUF per person. Payment is done at the court. or The host will reach you out via meetup chat. !!!Last but not least: if you have signed up but cannot make it for some reason, just take a minute to sign off, RSVP = no. This is to help those who are on the waiting list and want to play. The cancellation time with non-sick reason should be 18 hours before the session. In case you are not feeling well on the session day, please kindly contact the host via comment or privately message him/her with the direct message feature maximum 3 hours before the session. Looking forward to seeing you! cheers, Yoga Liability: The participation happens on own risk. There is no liability for any accidents, thefts or damages from the organizer.

Enjoy your time learning and practicing public speaking with Budapest Toastmasters! There is no need to speak or any previous experience in Public Speaking. --- 👉Keycode: 12, 3rd Floor. Please arrive by 6:20 PM, the meeting starts at 6:30 PM👉No registration or dress code is needed, the event is FREE.👉NOTE: We will have signs in the place so you can locate easily the Toastmasters Meeting room. --- Toastmasters International is a world leader in communication and leadership development. Our membership is 313,000 strong. Members improve their speaking and leadership skills by attending one of the 14,650 clubs in 126 countries that make up our global network of meeting locations. The world needs leaders. Leaders head families, coach teams, run businesses, and mentor others. These leaders must not only accomplish but must also communicate. By regularly giving speeches, gaining feedback, leading teams, and guiding others to achieve their goals in a supportive atmosphere, leaders emerge from the Toastmasters program. Every Toastmaster's journey begins with a single speech. During their journey, they learn to tell their stories. They listen and answer. They plan and lead. They give feedback—and accept it. Through our community of learners, they find their path to leadership.

Indítsd 2026-ot argentin tangóval! Nincs szükséged semmilyen előzetes tánctudásra, és egyedül vagy párban is jelentkezhetsz! Várunk szeretettel minden tangózni vágyót! Oktató: Szeghalmi Endre Kezdés: 2026. jan. 12., hétfő 20:00 – 21:00. Az órák minden hétfőn ugyanebben az időpontban folytatódnak. Helyszín: Roxy Stúdió, Tátra u. 4. Jelentkezés és további infók: A [www.tangolibre.hu/tango-tanfolyam/](http://www.tangolibre.hu/tango-tanfolyam/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExbDFsUmtNd2dIQVpmSHY3TXNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR50fTXksGSsXPYTo3IYigrZIXxtxdytBSer6v-jm9Y7HrcgPGLXn9R-dfaPCg_aem_0misiL79POQIY53C46m1Mw) oldalon találsz minden részletet, és itt tudsz regisztrálni. ✦ ✦ ✦ ✦ ✦ ✦ ✦ ✦ Start 2026 with Argentine tango! No prior dance experience is required, and you can sign up either alone or with a partner. We warmly welcome everyone who would like to dance tango! Instructor: Endre Szeghalmi Start: Monday, January 12, 2026, 8:00–9:00 PM Classes will continue every Monday at the same time. Venue: Roxy Studio, Tátra u. 4. Registration and more information: [www.tangolibre.hu/en/tango-classes-for-totally-beginners/](http://www.tangolibre.hu/en/tango-classes-for-totally-beginners/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBExbDFsUmtNd2dIQVpmSHY3TXNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR50fTXksGSsXPYTo3IYigrZIXxtxdytBSer6v-jm9Y7HrcgPGLXn9R-dfaPCg_aem_0misiL79POQIY53C46m1Mw)

Join the first joint GDG Agentic AI Hackathon in Hungary, bringing together the communities of GDG Budapest, GDG on Campus ELTE, GDG on Campus BME, GDG on Campus UniDeb and NextGen Data Science Club at Corvinus University. This one-day hackathon brings together developers, AI enthusiasts, and innovators to build practical solutions using agentic AI - systems that can autonomously work toward defined goals. Participants will collaborate in teams to design and prototype real-world AI applications and present their projects to a professional technical jury from the industry. The event connects university students with the tech ecosystem through hands-on challenges, mentorship, and technical talks. Participants will work in teams of up to 5 members, so make sure your team includes a mix of skills such as development, data science, AI, product thinking, and presentation. The hackathon is open to both Hungarian and international participants, creating a diverse and collaborative environment. 📅 Date: April 11, 2026 ⏰ Time: 10:00–21:00 CET 📍 Location: Budapest (TBA) 🌐 Language: English 👥 Expected attendance: 100–150 participants Come build, learn, and compete with some of the most active tech communities in Hungary. 🚀 Az eseményről Csatlakozz az első közös GDG Agentic AI Hackathonhoz Magyarországon, amely egyesíti a GDG Budapest, a GDG on Campus ELTE, a GDG on Campus BME és a GDG on Campus UniDeb közösségeit. Ez az egynapos hackathon fejlesztőket, AI-rajongókat és innovátoroket hoz össze, hogy gyakorlati megoldásokat építsenek agentic AI segítségével – olyan rendszereket, amelyek önállóan képesek meghatározott célok elérésére törekedni. A résztvevők csapatokban dolgoznak majd valós AI-alkalmazások tervezésén és prototípusának elkészítésén, majd bemutatják projektjeiket egy szakmai zsűrinek az iparágból. Az esemény összeköti az egyetemi hallgatókat a tech-ökoszisztémával gyakorlati kihívásokon, mentorálással és technikai előadásokon keresztül. A résztvevők legfeljebb 5 fős csapatokban dolgoznak, ezért gondoskodj arról, hogy csapatod változatos tudással rendelkezzen – például fejlesztés, adattudomány, AI, termékgondolkodás és prezentáció terén. A hackathon nyitott magyar és nemzetközi résztvevők számára egyaránt, sokszínű és együttműködő környezetet teremtve. 📅 Dátum: 2026. április 11. ⏰ Időpont: 10:00–21:00 CET 📍 Helyszín: Budapest (hamarosan) 🌐 Nyelv: Angol 👥 Várható létszám: 100–150 résztvevő Gyere, építs, tanulj és versenyezz Magyarország egyik legaktívabb tech-közösségeivel együtt. 🚀 Agenda --- Hosted By Zsigmond P. Toth, GDG Budapest & WTM Budapest organizer Zsigmond is the organizer of the GDG Budapest and GDG Cloud Budapest communities and the DevFest Budapest and DevFest Live events. He is a Google Cloud Certified Professional Cloud Architect and he works as the Head of Google Cloud, Hungary at EPAM Systems. Farida Elchuzade, GDG Budapest & WTM Budapest organizer Lechlech Latifa, GDG Budapest & WTM Budapest organizer Aamna Tayyab, GDG Budapest organizer Founder & Pioneer of GDSC ELTE, building one of the university’s first developer community spaces. Head of Delivery at Adroit Group, responsible for leading cross-functional teams, overseeing project delivery frameworks, and ensuring successful execution of technology initiatives across the organisation. Muhammad Hassan Raza, GDG Budapest organizer A dedicated and resourceful individual who is a GDG Budapest Co-Organizer and GDSC Leads Mentor with the ability to persuade and persuade people about computer-related works. Software Developer skilled at technical leadership, communication, and presentations. Experienced in the full project life cycle from design to implementation to integration. Hagigat Ahmadova, GDG Budapest organizer Nurtoza Aykhujaev, GDG Budapest organizer Asel Temiralieva, GDG Budapest organizer Ulukbek Tursunov, GDG Budapest organizer - Ines Meliani, GDG Budapest organizer Kaniz Fatima, GDG Budapest organizer --- Partners GDSC BME (https://gdsc.community.dev/budapest-university-of-technology-and-economics/) GDG on Campus Eotvos Lorand University (https://gdg.community.dev/gdg-on-campus-eotvos-lorand-university-budapest-hungary/) GDG on Campus Eotvos Lorand University - Budapest, Hungary is an independent group; our activities and the opinions expressed here should in no way be linked to Google, the corporation. GDSC Debrecen (https://gdsc.community.dev/university-of-debrecen-debreceni-egyetem-de/) ELTE Data Science Club (https://datasciencelte.netlify.app) Building a high-impact data science community at ELTE. Founded in 2025, the Data Science Club at ELTE is a beginner-friendly community where students learn together through hands-on projects, guest talks, and collaborative exploration of data science, AI, and machine learning. Our approach is community-first: we learn together rather than teaching from above. We focus on showcases, teamwork, and real projects that give members portfolio evidence through GitHub contributions. Everyone contributes at their own level while building a stronger community. NextGen Data Science Club (https://www.instagram.com/next_gen.dc?igsh=MWRlbmJ5YmR3Z3E0dA==) --- Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-budapest-presents-agentic-ai-hackathon/.

Join us for a fun and creative workshop where we’ll explore the vibrant combination of oil pastels and watercolor to create stunning floral paintings! 🌸🎨 In this 1.5-hour session, you’ll learn how to blend these two mediums to create expressive textures and lively compositions. Whether you’re a beginner or an experienced artist, this workshop will offer a relaxing and inspiring space to experiment with color and form. You will go home with your very own art creation, ready to be framed and displayed! **💰 Price: 5500 Ft** All materials are provided—just bring your creativity! 🌿✨

*“credentialism is the last acceptable prejudice. In the United States and Europe, disdain for the poorly educated is more pronounced (...) than prejudice against other disfavored groups”* **Michael J. Sandel - The Tyranny of Merit.** **(In english!)** Modern societies increasingly celebrate meritocracy — the idea that talent and effort should determine success. In principle, this seems logical: those who contribute more through their effort or abilities should secure a better life for themselves. Yet meritocracy has many critics. Some argue that it simply does not work or is broken. Others go further: even if it worked perfectly, it would still be unfair — and potentially oppressive. In *The Tyranny of Merit*, Michael J. Sandel, an american philosopher, argues that this belief system has quietly reshaped modern societies, fueling resentment, individualism, a loss of solidarity, and even contributing to the rise of radical political movements. **Introduction of guests (15 minutes)** We start with a short introduction of the guests with the question: * Have you ever achieved something difficult in your career? * How proud do you feel about it? **Questions (1 hour and 45 minutes)** 1. Do you think meritocracy actually exists? 2. Do you feel you truly deserve everything you have today? 3. Have you ever worked hard and still failed? 4. If success is deserved, does failure become deserved too? 5. Do you believe people who struggle are mostly responsible for their situation? 6. Can a society be both highly competitive and compassionate? 7. Should a CEO earn 100 times more than an employee? 8. Does a person’s market value reflect their social contribution or moral worth? 9. Does meritocracy unite or divide society? 10. Should policies aim for equality of outcomes, rather than only equality of opportunity? 11. Do you think meritocracy encourages humility or arrogance? 12. Do working-class voters feel represented by today’s progressive politicians? Why or why not? 13. What happens in a society where everyone has reached their “deserved” position? What happens to those at the bottom? 14. If you are a hardworking person, is that something you built — or something you were lucky to become? *** ### Thought Experiments * Two children: one born into wealth, one into poverty * Two worlds: one aristocratic, one meritocratic **RSVP:** Please confirm your attendance here on Meetup to save your space and if you cannot assist, yield your space to another person in the waiting list. We welcome donations from 1.000 HUF (min 400 HUF) to keep the costs of the meetup. **If you are looking to order food, or drink alcohol-free wine, you dont need to donate for the group. Thank you!**

Step into a world of secrets and laughter at our next Whodunit interactive evening. You’ll become one of the guests in a story where something has gone wrong — and it’s up to the group to uncover what really happened. Language: English Players: 6–12 (no acting experience needed) Duration: 2–2.5 hours Location: downtown venue (to be confirmed) Once your attendance is sure, you’ll receive a character guide a few days before the event. Dressing up to match your character is encouraged but not required and a few small accessories will be available on the night as well. During the evening, you’ll interact, gather clues, and piece together the story while enjoying a relaxed and social atmosphere. Drinks are not included; guests are welcome to order and pay for their own beverages at the venue. This event is tip-based, you’re welcome to contribute what you feel the experience was worth at the end of the evening. (Typical contributions range around 3,000–5,000 HUF.)

Szeretnéd fejleszteni a beszédkészséged? Szeretnél fejlődni a kommunikációdban, mert szükséged van rá a munkádban, a hétköznapjaidban? Szeretnéd megtanulni, hogyan tudsz még kifejezőbb lenni? Úgy érzed, nincs elég önbizalmad, de már tudod, hogy növelni szeretnéd, és már azt is tudod, tenni is kész vagy érte? Van egy jó hírünk: a LEGJOBB HELYEN JÁRSZ! :) Idén 10 éves a SzóDa Beszédklub és ezen a napon ünnepeljük meg ezt a kerek évszámot. Egy különleges est lesz meghívott vendégekkel, régi és jelenlegi klubtagokkal, no meg veled! Tarts velünk! Mi minden kedden azért gyűlünk össze, mert hiszünk abban, hogy bárki képes megtanulni az önbizalommal teli, tiszta, célratörő és élvezetes kommunikációt. Teszünk azért, hogy nálunk a gyakorlás alapú tanulás mindenki számára elérhető legyen akár diák, otthon lévő szülő, karrier építő, vagy csak egyszerűen érdeklődő a találkozónk résztvevője. Nálunk bárki megszerezheti azokat a kommunikációs technikákat melykekkel képes érdekesen, tömören, érthetően átadni saját gondolatait a közö(n)sség felé. Várunk szeretettel, ha szeretnéd fejleszteni kommunikációs és vezetői készségeidet egy jó hangulatú, segítőkész és összetartó csapatban. Találd meg önmagad egy inspiráló környezetben! Amivel találkozhatsz egy esten: – képet kapsz arról, hogy mi a Toastmasters és hogyan néz ki egy klubest; – megláthatod mit is adhat a Toastmasters tapasztalt előadók által; – új érdekes emberekkel találkozhatsz; – barátságos környezetben szerezhetsz sok új élményt. Miért csatlakozz a SzóDa Retorika Klubhoz? 1\. Lehetőség önmagad megismerésére\, ami a személyes fejlődéshez nagyban hozzájárul; 2\. Új barátokra tehetsz szert; 3\. Több önbizalmat szerezhetsz; 4\. Új dolgokat tanulhatsz azáltal\, hogy gyakorlod őket\. Hogyan tudsz csatlakozni? * gyere el hozzánk, próbáld ki magad, ízleld meg, milyen a színpadon állni, merj rögtönözni. Ezt díjmentesen megteheted három alkalommal. * ha jól érezted magad, megtetszett és eldöntötted, hogy Te is szeretnél velünk hétről hétre, minden kedd este a fejlődés útján járni, bővebb információért látogass el ezekre az oldalakra: https://www.facebook.com/szodaretorikaklub/ A SzóDa vár szeretettel! :)

Come meet people and play new board games with the international members of the BFG Whatsapp group! [Link to join the chat is here](https://chat.whatsapp.com/JRYftbhepSxK3ugOb7Ceyy). We’ll reserve a few tables at Vault 51 and then play games in smaller groups throughout the evening. **Note:** *Vault 51 requires that you pay a 600 Ft table fee per person at the bar.* Feel free to bring games you want to play or play something from the bar’s collection. Hot food and snacks are available from the bar until about 10pm Spots for this event are limited to not go too far over our table reservation, so please change your RSVP if you are not able to attend, also if you are on the waitlist, please wait to be in the "going" before attending! Also everyone can bring 1 guest only. Don't bring more, we wont have enough seats! Thanks you!

Haladó argentin tangó óra heti rendszerességgel januártól! Várunk szeretettel! **Időpont**: Szerda, 20:15 - 21:30 (első alkalom 2026-ban: **január 6.)** **Helyszín**: Shift Stúdió, Andrássy út 35., 2. em., 12-es kapucsengő **Oktatók** Serbán Andrea és Szeghalmi Endre Órarend: [https://tangolibre.hu/orarend/](https://tangolibre.hu/orarend/) ✦✦✦ Advanced Argentine tango class held on a **weekly basis**. **🕒 Time** Wednesday, 8:15–9:30 PM **📍 Location** Shift Studio, Andrássy út 35., 2nd floor **Teachers** Andrea Serban & Endre Szeghalmi Prices: [https://tangolibre.hu/en/prices/](https://tangolibre.hu/en/prices/)

## **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! ***

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

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.

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. 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.transformlabs.com/services)

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!