Distributed Systems

We're back for 2026, and looking forward to seeing you at our February event, where you can learn more about Android and meet fellow mobile devs in person! As usual, we’ll have two great talks to set the tone of the evening, both from returning speakers at our meetup, exploring build configuration testing and code generation. **📜 Schedule:** 18:00 - 18:30: Gathering and socializing 18:30 - 19:05: First talk 19:05 - 19:30: Break 19:30 - 20:05: Second talk 20:05 - : More socializing! — **🔷 Gradle Testing: Unlocking TestKit for Developers - Tom Koptel** Testing custom Gradle plugins is a critical step in ensuring their reliability, especially when developing for Android projects. This talk will focus on leveraging the Gradle TestKit framework to set up robust testing environments for custom plugins. Attendees will learn how to configure their projects effectively, enabling seamless plugin testing and integration. Key topics include: * Project Setup for Plugin Testing: Laying the groundwork for a Gradle plugin project with proper dependencies and configurations tailored for Android development. * Using Gradle TestKit: A deep dive into functional testing with TestKit, including creating isolated test environments using GradleRunner and managing temporary directories for test builds. * Testing Against Multiple Android Gradle Plugin (AGP) Versions: Techniques to ensure compatibility across AGP versions by dynamically injecting dependencies during tests. * Advanced Testing Tools and Techniques: Exploring tools like Jacoco for code coverage metrics and live debugging of code under test. **🔷 Compile-time code generation with Kotlin Symbol Processing - Lajos Nyéki** In this talk, we will explore the advantages of compile-time code generation and how it can streamline development workflows by reducing boilerplate, improving performance and catching errors early. We’ll dive into Kotlin Symbol Processing (KSP), highlighting its modern approach compared to the older Kotlin Annotation Processing Tool (KAPT), and discuss why KSP is becoming the preferred choice for many Kotlin developers. To ground these concepts, we’ll walk through a real-world case study demonstrating how compile-time code generation with KSP can be applied to solve practical problems. — 🏢🍴 Thanks to [EPAM](https://careers.epam.hu/) for hosting us in their office, and keeping us fed and hydrated throughout the event! 🚪 **Doors open at 18:00** and the first talk starts at 18:30! 🗓️ The event is free but requires registration, so **please RSVP** here and don’t forget to update your response if it changes! 📸 We plan to take photos, so if you would not like to appear on them, please tell one of the organizers! 🎤 We are always looking for new presenters, so if you have an idea for a talk, please reach out to us at [meetup@androidbudapest.com](http://meetup@androidbudapest.com/) or submit at [https://androidbudapest.com/talkidea](https://androidbudapest.com/talkidea)!

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! :) 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! :)

Csatlakozz a KEZDŐ 2 kurzusunkhoz! **Időpont:** Keddenként 20:00–21:00 (első alkalom 2026-ban: **január 6.)** **Helyszín**: Roxy Táncstúdió Tátra utca 4., 1136 Budapest [Teljes órarendünk](https://tangolibre.hu/orarend/) **Tanárok**: Szeghalmi Endre és Serbán Andrea ✦✦✦ Join our **Beginner 2 Argentine Tango course**! This class is for dancers who already know the basics and would like to continue developing their technique, connection, and enjoyment of tango. **🕒 Time** Tuesdays 8:00–9:00 PM First class in 2026: **January 6** **📍 Location** Roxy Dance Studio Tátra utca 4., 1136 Budapest **Teachers** Endre Szeghalmi & Andrea Serbán **Prices:**[ https://tangolibre.hu/en/prices/](https://tangolibre.hu/en/prices/)

Csatlakozz a Kezdő 1 kurzusunkhoz! Ez a kurzus a **2025 szeptemberében indult Teljesen kezdő csoportunk folytatása**, de új érdeklődők is csatlakozhatnak, ha már van minimális tapasztalatuk argentin tangóban. **Időpont:** Keddenként 19:00–20:00 (első alkalom 2026-ban: január 6.) **Helyszín:** Roxy Táncstúdió, Tátra utca 4., 1136 Budapest **Tanárok:** Szeghalmi Endre és Serbán Andrea Teljes órarendünk: [https://tangolibre.hu/orarend/](https://tangolibre.hu/orarend/?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBEwaDNKZFpsQVh2dUpJMklKd3NydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR7-aVO75w-5o1MEitQYD_hyAji9mGat21L3FYSxxPdYQTAUrjN9qopadYwkuw_aem_cRLCRnGqUCcsUeCJj_XpyA) Árak: [https://tangolibre.hu/arak/](https://tangolibre.hu/arak/) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Beginner 1 Argentine Tango Course – continuation** This course is the continuation of our Total Beginner group started in September 2025. New participants are also welcome if you already have some basic experience in Argentine tango. **Time:** Tuesdays 7:00–8:00 PM (First class in 2026: **January 6)** **📍 Location:** Roxy Dance Studio, Tátra utca 4., 1136 Budapest **Teachers:** Endre Szeghalmi & Andrea Serbán Prices: [https://tangolibre.hu/en/prices/](https://tangolibre.hu/en/prices/) ***

Tired of swiping? Or tired of listening to your friends and their failed online dating stories? Hot Paprika Comedy brings you a unique show where our awesome comedians try to shed some light on you and help you out. You do not need to participate to come to this show. This show is perfect for people who want to put themselves out there, or for those who just want to watch the spectacle unfold. The show will include elements of stand-up comedy, dating games, and much more. Everything will be voluntary, and you will only be asked to participate with your consent. This will be our first show, so it will be a donation-based event. Send us a message in advance if you would like to be involved, or email us at hotpaprikacomedy@gmail.com . Otherwise, we will speak with you when you arrive to see who is interested. See less

FlowDan’s Mix is a Latin-inspired dance party workout. High energy, easy-to-follow choreographies, and nonstop good vibes! Each class has a theme we dance through, plus one song where we drop the steps and enjoy pure free dance. Class fee: 2500 Huf 5 class pass: 10000 Huf

🎭 ENGLISH STAND-UP COMEDY OPEN MIC 🎭 Hot Paprika Comedy🌶️ is proud to team up with the wonderful people at 📍Jo&Joe Budapest to bring you a 🔁weekly open mic every Tuesday. We want to give everyone opportunities to jump on stage and unlock their potential for stand-up comedy. The show will happen on the lobby floor at Jo&Joe Budapest 👉If you think you have good jokes, a funny song or a fun mime, sign up on the post in the event description! 🆘FREE SHOW! But donations are appreciated 🤗 We ask you to bring some loose cash if possible. 🎭Hosted by Tauseef Parvez 🪑Seats are on a first come first serve basis. Come early to have good seats. Follow @hotpaprikacomedy for more shows🎭

Ez nem előadás, nem panelbeszélgetés és nem agilis best practice-ekről szól. Ez egy kötetlen este, ahol **minden résztvevő hoz egy elcseszett helyzetet – és egy tanulást belőle**. Nincs cégnév, nincs hibáztatás, nincs okoskodás. Csak őszinte történetek, közös nevetés és az a megnyugtató felismerés, hogy nem vagyunk egyedül ezekkel a dilemmákkal. És sör. *Helyszín:* A Grund - Bazsesz terem (az emeleten a csocsó asztal után jobbra) *Időtartam:* 17:30-tól kifulladásig

Join us for an evening dedicated to the evolving landscape of software engineering. As our tools become more powerful, our focus shifts from simply writing syntax to building architecture and stronger teams. We’ll explore two distinct sides of this evolution: the human side, where **peer and mob programming** foster trust and shared ownership, and the technical side, where **AI agents** allow us to "print code" and one-shot complex features. Whether you are looking to improve "team quality" or manage the "review bottleneck" of AI-driven development, this meetup offers practical insights for every engineer. This English-language event will be held at the **Formlabs Budapest office**, where we'll provide snacks and drinks to fuel conversations. Arrival is from 17:30, Announcements and agenda at 17:55, first presentations will start at 18:00. \-\-\- **Peer Programming to increase "Team Quality"** **with [Nico Riedmann](https://www.linkedin.com/in/nico-riedmann/)** Most engineers are familiar with pair programming. Your team may already encourage it to foster learning or as an alternative to ensuring code quality via pull-request reviews. This talk will show you the impact that collaboratively creating code has on "team quality" rather than just "code quality" - creating opportunities to build trust, increase shared ownership, and define and better understand a shared vision. And if you weren’t convinced before, we’ll end with a few practical tips on getting started with pair and mob-programming. **One-Shotting Features: The Reality of Agentic Workflows** **With [János Molnár](https://www.linkedin.com/in/j%C3%A1nos-moln%C3%A1r-9b582896/)** This talk explores our journey from using AI as a glorified auto-complete to one-shotting complex features. I’ll discuss our team’s evolution from using AI for basic code generation to adopting agentic workflows that shift our focus toward planning and architecture. We’ll explore the benefits of this high-level approach alongside the "review bottleneck" that occurs when AI velocity outpaces human auditing, and how we adapted our processes while releasing and building our Greenhouse project. \-\-\- Come learn and connect with other tech enthusiasts. See you there! You can also find the recordings of previous events on the [@DevBPMeetup YouTube channel](https://www.youtube.com/@DevBPMeetup).

Join me to practice a Vinyasa Yoga Flow in Budapest! English-speaking classes held at [Hanuman yoga studio](https://www.hanumanjoga.hu/oratipusok/vinyasa-flow-yoga-nidra-in-english/). Every Saturday at 11:30am. Open to all levels. Flow, Feel & Stretch. **Book your spot [here.](https://www.hanumanjoga.hu/oratipusok/idopont-foglalas/)** Location: Budapest, Erőd u. 16, 1027 Instagram: [theinner.drishti](https://www.instagram.com/theinner.drishti/)

Mit csinál egy IT vállalatnál egy energetikai mérnök és építész-, építő-, villamosmérnökökből álló csapat? Többek között energetikai, út- és vasútépítési projekteket valósít meg innovatív, digitalizációra épülő megoldásokkal. Gyertek el az Accenture ICP csapatának második Meetupjára, melynek fő témája a németországi infrastruktúra- és nagyberuházási projektek lesznek. 📅 **Dátum:** 2026\. február 19\.\, csütörtök\, 18:00 📍 **Helyszín:** Accenture, 1095 Budapest, Lechner Ödön fasor 10/B ✏️ **Regisztráció:** http://bit.ly/4r28Blw 📋 **Program:** 17:30: Érkezés, regisztráció 18:00: Előadások: 🎤 Infrastructure & Capital Projects Insights *(presentation in English)* 🎤 Távközlési állomások költöztetése 🎤 Digitális ütemezés a vasúti infrastruktúrafejlesztésben 🎤 Hogyan támogatja a térinformatika az építőipari és energetikai nagyberuházásokat? 19:00: Networking

Digital products are evolving from “screens” to intelligent partners—services that notice context, anticipate intent, and adapt in real time. That shift is exciting… and risky. How do we design experiences that feel helpful without becoming creepy, confusing, or out of control? Join us at Product Design Talks by Ergomania for: Beyond UX: How Digital Products Become Intelligent Partners **📍 Rudas Bistro, 1013 Budapest, Döbrentei tér 9.** **📅 18 February 2026 \| 🕔 17:00** ⏱ Practical, inspiring knowledge in 2 hours We’ll unpack **Sentient Design** (popularised by Josh Clark): moving beyond rigid self-service flows toward **products** that **respond** **dynamically** to **real-life situations. Think: your banking app surfaces the right action the moment you land in Tokyo** \- currency exchange\, nearby ATMs\, relevant insights\, without you hunting for them\. Programme: **17:00 Welcome reception** **17:20 Talk: When Banking Apps Stop Being Static and Start Noticing Context — [Adam Dragus](https://www.linkedin.com/in/adamdragus/)** **17:45 Panel: [Dr Andras Rung - UX Strategist](https://www.linkedin.com/in/drandrasrung/), [Adam Gyökhegyi](https://www.linkedin.com/in/adamgy/), [Adam Dragus](https://www.linkedin.com/in/adamdragus/), [Gábor Lukács](https://www.linkedin.com/in/gbr-lukacs/)** **18:45 Networking** In the panel we’ll compare approaches teams use today, **discuss when anticipation helps vs. hurts, and how to balance adaptability with clarity**, **trust**, and **user** **control**, especially in regulated products. Bring your questions—there’ll be time for discussion, and you’ll meet like-minded peers over drinks. 🎟 Seats are limited. Register here: [https://productdesigntalks.ergomania.eu/en/events/beyond-ux-how-digital-products-become-intelligent-partners/](https://productdesigntalks.ergomania.eu/en/events/beyond-ux-how-digital-products-become-intelligent-partners/)

Szeretnél kötetlenül beszélgetni a mesterséges intelligenciáról, promptolásról és arról, hogyan lehet a legtöbbet kihozni az AI-eszközökből? Csatlakozz hozzánk egy baráti kocsmázásra, ahol nem előadás, hanem beszélgetés lesz a középpontban. Akár kezdő vagy, aki most ismerkedik a ChatGPT-vel és társaival, akár már napi szinten dolgozol AI-megoldásokkal, itt helyed van. **Mire számíthatsz:** * Kötetlen beszélgetés sör, bor vagy üdítő mellett * Tapasztalatcsere promptolási tippekről és AI-hackekről * Új ismeretségek hasonló érdeklődésű emberekkel * Barátságos, nyitott közeg – nincs buta kérdés **Időpont:** Minden hónap harmadik szerdája **Helyszín:** [Esetleg, Budapest] **Részvétel:** Ingyenes, de kérlek jelezd részvételi szándékod, hogy tudjuk, hány főre foglaljunk!

English below \-\-\-\-\-\-\-\-\-\-\-\-\- Tarts egy kis szünetet a hétköznapi rohanásban és gyere el csendes könyvklubunkba a Fővárosi Szabó Ervin Könyvtárba. Hozd magaddal az aktuális könyvedet, merülj el benne egy órácskát, majd oszd meg velünk, amit olvastál. 🗺 Hogyan találsz meg minket: A tanulótér felújítása miatt az eseményt a FSZEK Ötpacsirta u-i épületében tartjuk (Ötpacsirta u. 4., a Központi Könyvtár bejáratával szemben): az épületbe beérve gyere fel az első emeletre a balra található lépcsőn. A termünk rögtön a lépcsősorral szemben lesz. 💡 Részvételi díj: Nincs. :) 🥤 Étel-ital: Kérünk, zárható üvegben hozz magaddal innivalót, ha az esemény alatt megszomjaznál. Másból inni, valamint a teremben enni nem lehet. 🕑 A menetrend: 17:00–17:30 – Érkezés és bemutakozókör: mit fogsz olvasni? 17:30–18:30 – Csendes olvasás 18:30–19:30 – Választható beszélgetés a könyvekről (magyarul) Extra: Az esemény után igény szerinti afterezés a [Prága Kávéház és Sörözőben](https://pragakavezo.hu/) (Baross u 8.), hogy ne csak könyvekről beszélgessünk! Ha csak erre jönnél, írj üzenetet, hogy ne kerüljük el egymást. Fontos: Ez egy teljesen magyar nyelvű esemény. A bemutatkozó kör az elején és a kötetlen beszélgetés a végén is magyarul zajlik. Az olvasás csendje persze mindenkié, így nyugodtan hozhatsz bármilyen nyelvű könyvet. A részvétel ingyenes, de a helyek korlátozottak. A helyedet a hivatalos Meetup eseményen való regisztrációval tudod biztosítani: Várunk szeretettel! \-\-\-\- Please note: This is a Hungarian-language event. The introductions at the beginning and the optional discussion at the end are held in Hungarian.

**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** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA

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.

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

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

Meeting @ Improving's office in Downtown Columbus, near Cosi. Parking is paid, food & drink are free! This time we're hanging out after the long winter break. We are going to look at a group-member's project used to help learn the fundamentals of Go, and if time allows, we can take a look at how we like to build Go projects using AI.

Jimmy V's Grill & Pub in Grandview Heights. We meet in the bar in the room on the right (the cigar shop). You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant. *** Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'! Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life. Mission: grow, support, and provide community for atheists in Central Ohio. Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision. Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge. Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).

Come chat about Atlassian tools and best practices at the Reynoldsburg Sunny Street Cafe and Breakfast is on Atlassian! Let's get the day started off with breakfast with your ACE Leaders! We're always excited to talk about Atlassian Products, share our knowledge and hand out swag! Come chat with us about new product news and anything you are working on within the Atlassian product stack. This is a great opportunity to come see what we are all about, hear new business news and share with other Atlassian users your questions and experiences. We'd love to see new and old friends come out to chat and learn about Atlassian! Agenda --- Moderators Kimberly Deal - Columbus Atlassian User Group Leader Kevin Stanley - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Hosted By Kimberly Deal, Atlassian User Group Leader Kevin Stanley, Chief Everything Greg Sprowls, Agility Lead --- Global Partner Atlassian (http://atlassian.com) Millions of users globally rely on Atlassian products every day for improving software development, project management, collaboration, and code quality. Partner Atlassian --- For over a decade, Atlassian customers have come together to network, share ideas, solve problems, and find new ways to use Atlassian products. Today, more than 15,000 people take part in Atlassian community events in more than 30 countries. --- Complete your event RSVP here: https://ace.atlassian.com/events/details/atlassian-columbus-presents-rise-and-shine-with-atlassian-reynoldsburg-4/.