Distributed Systems

**Let's go see "Walk My World" + Discussion THIS WEDNESDAY!** I’m heading to see **"Walk My World" this Wednesday (June 10th)**. It’s a massive, 6,000-square-meter immersive performance where the audience wears black masks to experience contemporary circus, theater, and dance up close. **The Plan for This Wednesday:** * **6:55 PM:** Meet at the door to get to know each other before heading in. * **7:00 PM The Show:** Dive into the immersive performance. * **After:** Meet at Zsiráf Buda for a casual drink and discussion. **Official Site & Tickets:** Grab your tickets directly on https://walkmyworldshow.jegy.hu/program/recirquel-walk-my-world-170081/1435537 *(If you missed the meeting time, meet at* Zsiráf Buda *after the show)* ***Note:*** *I’m not affiliated with the show. I'm just an arts enthusiast looking to invite people and share our experience afterward.* ✦•······················•✦•······················•✦ Kat is a writer, teacher, and theater artist. Formerly based in New York City, she is now traveling the world and bringing her meetups here to learn alongside our community. Come join her!

In the last DevBP meetup before the summer break, we will venture to the world of **Continuous Delivery**, exploring the craft of shipping software safely and continuously — from the practices that keep your releases boring, to the hard-won lessons of building the infrastructure behind a feature toggle. \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- **Continuous Delivery Never Died. It Became a Harness.** with [András Fincza (Draven) - XUND](https://www.linkedin.com/in/andrasfincza/) The PR-centered pipeline was already buckling under big batches, delayed feedback, and overloaded reviewers. Agents just turned up the volume. But the discipline that made CD work in 2015: trunk-based development, fast feedback, sociable testing, feature flags, quality gates. These matter more in 2026, not less. This talk is about what to keep from the old playbook, what to upgrade, and what to stop pretending works. **Building a Feature Flag service** with [Zoltán Dávid - ConfigCat](https://www.linkedin.com/in/zoltan-david/) Everyone knows what a feature flag is. Far fewer know what it takes to build and run a feature flag service at scale. In this talk, we'll go behind the scenes of ConfigCat: the technical decisions, the scaling surprises, and the business lessons that came from serving billions of feature flag evaluations. No introductions to feature flagging, just honest insights from years of building a product in a space where reliability isn't optional. \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- \-\-\- This English-language event will be held at the **Shapr3D office**, where we'll provide snacks and drinks to fuel conversations. Arrival is from 17:30, the presentations start at 18:00. You can also find the recordings of previous events on the [@DevBPMeetup YouTube channel](https://www.youtube.com/@DevBPMeetup).

Az AI most már nem csak külső chatbotként jelenik meg a fejlesztésben, hanem az Oracle APEX világába is egyre mélyebben beépül. Ezen a meetupon gyakorlati példákon keresztül nézzük meg, mit jelent ez APEX fejlesztőknek, PL/SQL fejlesztőknek és vállalati alkalmazásokat építő csapatoknak. Az új verzió fókuszában az **AI-támogatott fejlesztés**, az automatizálhatóság és a modern fejlesztői élmény áll. A 26.1 legfontosabb újdonságai közé tartozik az **APEXlang**, amely olvashatóbb, fejlesztők és AI-eszközök számára is könnyebben értelmezhető alkalmazásleírást ad. Megjelent az **AI Interactive Reports**, amely természetes nyelvi támogatást hoz a riportolásba. Szintén fontos újdonság az **AI Agent Tools**, amely biztonságosabb és kontrolláltabb AI-alapú megoldások építését teszi lehetővé. Beszélünk a **Codex** APEX fejlesztésben való használatáról, az **OpenAI** integrációs lehetőségekről, valamint bemutatjuk azt is, hogyan építhető **projekt szintű chatbot** saját adatok és dokumentumok alapján. Célunk az Oracle Application Express népszerűsítése, a fejlesztői közösség erősítése és olyan gyakorlati megoldások bemutatása, amelyek valódi ügyféligényekre adhatnak választ. Ha érdekel az APEX, a low-code fejlesztés és az AI gyakorlati alkalmazása, regisztrálj minél előbb, mert a helyek csak korlátozottan állnak rendelkezésre. A rendezvény ingyenes, de regisztrációhoz kötött.

🚨 **Important**: RSVP on Meetup.com does not count as an official registration. To confirm your participation, please register on our official page here: [Home - Frontend Meetup](https://web.cvent.com/event/2e961c99-62ae-457a-8c6a-b26212248a11/summary?RefId=Home) *** Join us for an exciting evening where we explore how AI is reshaping the way we build software — from writing code to redefining development workflows. Whether you're a Frontend developer, Engineer, or simply curious about the future of coding, this Meetup will offer fresh perspectives and practical insights. **🔹 Session 1: Death of Typing Code?** What if writing code becomes optional? In this session, we’ll explore how emerging technologies are transforming the development process through: * Harness engineering * Ralph loop * Autonomous code generation * AI-assisted development * Continuous validation **🔹 Session 2: Spec It, Don't Code It** Discover a new approach where clear specifications take center stage over manual coding. This talk will cover: * TypeScript * TDD / Unit testing * Claude * Copilot Expect thought-provoking discussions, real-world examples, and opportunities to connect with peers from the Frontend community. *** ✅ Official Registration Required Please make sure to register through our official registration page: [Home - Frontend Meetup](https://web.cvent.com/event/2e961c99-62ae-457a-8c6a-b26212248a11/summary?RefId=Home) We look forward to seeing you there!

Középhaladó argentin tangó óra heti rendszerességgel januártól! Várunk szeretettel! **Időpont**: Szerda, 19.00 - 20.15 (első alkalom 2026-ban: **január 6.)** **Helyszín**: Shift Stúdió, Andrássy út 35., 2. em., 12-es kapucsengő **Oktatók** Serbán Andrea és Szeghalmi Endre [További részletek és órarend](www.tangolibre.hu) ✦✦✦ Intermediate Argentine tango class held on a **weekly basis**. **🕒 Time** Wednesday, 7:00–8:15 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/)

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/)

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/ICAamEEv2GCAMKM977k0Wm). 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!

Practice Buddhist meditation in the middle of Budapest! The meditation is suitable for beginners. Each regular meditation is guided and begins with a short introduction. (all together is about 30-40 minutes) Our regular Buddhist meditations have proven popular with people who want to integrate authentic Buddhist methods into their daily lives. For the modern lay person who is juggling work, relationships, and an active role in society, we teach a meditation that is easy to learn, and profound and powerful for experienced practitioners. The meditation originates from the Karma Kagyu tradition of Tibetan Buddhism. It has a cumulative effect on mind, leading to greater clarity and calmness. Fearlessness, joy, and active compassion are the result of regular practice of Buddhist meditation. * Do I need any special clothing? No special clothing needed. * Does the attendance cost anything? No, the meditation is free.

Join the next Budapest Quant Group meetup for an exciting presentation by **Gábor Vigh, Director at MQA, Citi**, on cutting-edge machine learning methods in quantitative finance. The event concludes with networking. **Abstract:** Accurate and efficient calibration of equity volatility surfaces is fundamental to equity derivative pricing. When markets quote only American option prices, this task becomes significantly more complex. We present a neural network-based approach that overcomes these challenges, delivering calibration results while reducing the computational burden of conventional approaches. **Mandatory registration:** please send a mail to the following address: kinga.doktor@citi.com, with the following details: * name * company * job title **Agenda** * 18:30-19:00 Reception. The attendees need to enter the Promenade Gardens Building, the presentation will take place on the fifth floor in the Citi office (ask for help at the reception) * 19:00-20:30 Presentation and Q&A * 20:30 Networking **Address:** 5th floor, Promenade Gardens (Citi building) 80, Váci str. Budapest, 1134.

Hello everyone, Take a break from your week, make progress on your reading in good company, then join a relaxed chat about what everyone's been reading. **Schedule** 10:30 \- 11:00 \| Arrival & Introduction round 11:00 \- 12:00 \| Silent Reading Hour 12:00 \- 13:00 \| Chat & Discussion **Location** Metropolitan Ervin Szabo Public Library, Boulevard Library It will take place in the event room. After you enter the library, turn right, cross the lounge, and go down the stairs at the far end. If you bring snacks, you can have them in the lounge area. Whether you're a regular or a first-timer, you're welcome. See you there! **[Facebook Page](https://www.facebook.com/people/Budapest-Silent-Book-Club/61567388151835)** **[Goodreads](https://www.goodreads.com/group/show/1271292-budapest-silent-book-club)**[ ](https://www.goodreads.com/group/show/1271292-budapest-silent-book-club) **[Silent Book Club](https://silentbook.club/pages/about-us)** This is a free event, but Meetup has its own fee. If you'd like to contribute and help keep this going, you're welcome to donate [via Revolut](https://revolut.me/schmidtpeter), every bit helps! (we keep track of all donations in this [spreadsheet](https://docs.google.com/spreadsheets/d/1C_N9CN_pQO5aUYezqzQW4GS7pr8IfplchwG8-ruZ19g/edit?usp=sharing))

**English below ----------------------** Ez most az első picit kötetlenebb könyves eseményünk lesz. Nem egy konkrét könyvet fogunk kibeszélni, hanem inkább kinézünk az Ünnepi Könyvhétre, és meglátjuk, hogyan működik ez a lazább forma. De aggodalomra semmi ok, a könyves kibeszélő és a duma mindenképpen az esemény része lesz. :) A menetrend a következő: **14:00 – Gyülekező és bemutatkozás** A Vörösmarty-szobor környékén találkozunk. Egy nagyobb társaságot keress, és hogy biztosra menj: a kezemben egy Moby Dick könyv lesz, szóval ha ezt látod valakinél, mi vagyunk azok. Kezdésként tartunk egy gyors bemutatkozást, és átbeszéljük, ki mit szeretne megnézni. Én személy szerint csak körbe akarok nézni és megállni ott, ami épp megtetszik, de ha neked komolyabb terveid vagy konkrét célpontjaid vannak, nyugodtan jelezd, biztosan találsz majd valakit, aki veled tart. **14:15 – Indulás a standok közé** 14:15-kor elindulunk, szóval kérlek írj az eseményhez, ha késel. Ha nem érsz oda kezdésre, az sem gond, később is simán be tudsz csatlakozni, rugalmas az egész. A megbeszélt irányok mentén kicsit szétválunk kisebb csoportokra, és teszünk egy kört a forgatagban. **15:00 – Találkozó a Kiskirálylánynál(Vigadó tér)** A nézelődés után 15:00-kor a Kiskirálylány-szobornál találkozunk újra a Vigadó téren. Várunk egy picit, hogy mindenki odaérjen, majd együtt átgyalogolunk a Városháza Parkba (ez egy laza 10 perces séta lesz). **15:20 - 17:00 – Könyves duma a Városháza Parkban** Letelepedünk a parkban, ahol picit átbeszéljük a könyvheti élményeket, meg persze jöhet a kötetlen beszélgetés bármilyen könyvről. A hivatalos részét 17:00-kor zárjuk, de utána is ott lehet maradni tovább, ameddig van kedvünk sztorizni. Gyertek, nézzünk szét, aztán dumáljunk egy jót a parkban! **English version / International attendees:** This is our first casual, free-form event. Instead of discussing a specific book, we’ll visit the Festive Book Week together and see how this format works. * **14:00 – Meetup:** Near the Vörösmarty statue. Look for a bigger group and a guy holding a **Moby Dick** book. We'll do a quick intro and share what everyone wants to check out. * **14:15 – Heading out:** We'll explore the stands in smaller groups. If you're late, just drop a comment here and catch up with us later. * **15:00 – Re-grouping:** At the Little Princess Statue (Kiskirálylány) at Vigadó Square, followed by a 10-minute walk to Városháza Park. * **15:20 - 17:00 – Book Chat:** We'll settle down in Városháza Park to talk about our Book Week finds and books in general. The official event ends at 17:00, but feel free to stay longer! > 🌍 **Language note:** Since this is a local event, most attendees will likely speak Hungarian, but the organizers and many of us speak fluent English. Feel free to join us, we are happy to chat in English and make sure you're included!

**〜 run for your coffee ☕️🥐** welcome to the **unplugged club Budapest ✨** a space to slow down, leave the phone behind, and reconnect with yourself and others through low pressure shared experiences ☻ This time, we’ll meet for an easy **5km run** that ends with a well deserved coffee 🏃🏻‍♀️☕ **〜 What to expect** ◦ This is a relaxed, beginner-friendly run with no pressure on pace or performance. ◦ We’ll run together through a comfortable 5km route in Budapest. ◦ After the run, we’ll hang out at Kelet Kávézó for some coffee or beverage of your choice. **〜 Details** 📅 Saturday, June 13th 🕘 Start: 9:00 am 📍 Meeting point: Szent Gellért tér 🏃‍♀️ Distance: \~5 km beginner friendly pace ☕ Finish: Kelet Kávézó If you see this: **this is your sign to start running!** **✨**🏃🏻‍♀️🏃**✨**

**(Session in English)** Tonight, everybody is encouraged to bring one or more questions, ideas, dilemmas, or topics they would like to discuss. We will test them giving each 10 to 15 min, before starting the next - unless the conversation becomes too interesting to switch. Some example questions: Can freedom exist without responsibility? * Is technology making us wiser? * What makes a good life? * Is suffering necessary for growth? * Can morality exist without religion? * The goal is not to win an argument or reach consensus, but to think, challenge assumptions, and encounter perspectives different from our own. * Bring a question. We'll take care of the rest Free session. Get "Karma Points" (discount points) from registering here: https://consciouspass.com/activity/open-philosophy-session-tonight-you-bring-the-topic-2026-06-11/

Hey everyone, here we go again with our next event on Saturday! Tina will host this session, so please follow her instructions! 🙏 IMPORTANT NOTE: Free Cancellation is only until Thursday, 12:00 PM. Any cancellation should be done by Thursday 12 noon. Any cancellations after these fully chargeable It is mandatory to wear a dedicated indoor shoes (no outdoor shoes are allowed to be worn when entering the courts) WAITLISTED ATTENDEES: If you are in the WAITLIST, Do not come Level of expectation : Beginner Venue: Tüskecsarnok Sportscentre: 1117 Budapest, Hevesy György út, Sportscentre Map: http://tuskecsarnok.hu/wp-content/uploads/tuske-map-1-full.png Look for #7 on the map. More info in the "How to find us" section of the Meetup event. 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 1,5 hours from 10:00 till 11:30. 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 people, The Host deserve to contact the people who canceled after the time designated cancellation time. The expected fee is usually around 2500-3000 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.

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **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

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.

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

WQC has weekly Thursday night social nights at the Westerville Java Central. Come and grab a coffee and connect with the community: low stakes, chill environment, and tasty drinks. No registration is required; come as you are.

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/).

### Hofbräuhaus Columbus Dresden Stammtisch is a monthly social gathering for members and friends of Dresden Sister City, Inc. The event is free and open to the public. We speak German or English - it is largely up to you!

Join the Columbus AI community for a special event. **Battle of the Personal Agents** is your chance to see what people are actually building with AI agents and personal automation systems. Whether you’re running OpenClaw, Hermes, or a completely custom solution, bring your agent and show the community how it works. We’re interested in real-world implementations: the problems your agent solves, how you use it day-to-day, how it’s hosted and managed, how you built it, and why you’ve chosen to keep using it. Live demonstrations are encouraged, so be prepared to show your code, architecture, workflows, and your agent performing real tasks. This is less about polished presentations and more about sharing practical experience, comparing approaches, and learning from one another. If you’d like to present, please contact Chris Slee (via meetup) before the event so we can allocate enough time for everyone’s demonstrations. Come ready to show what you’ve built, discover what others are doing, and maybe find a few ideas worth taking home. 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)