Linux

Agenda: 18:00 Doors open 18:20 welcome, doors closing.. 18:30 From Reactive Streams, through Virtual Threads, to Flows - Adam Warski 19:30 break 20:00 Armeria: The Microservices Framework You Haven't Tried Yet - Dominik Dorn 21:00 networking **From Reactive Streams, through Virtual Threads, to Flows** Since Java's inception, the programming model has shifted from synchronous to asynchronous, and for good reasons: improved performance, higher throughput, and lower latency. Reactive Streams greatly simplified the development of reactive systems by incorporating elements of functional programming. However, with the introduction of Virtual Threads in Java 21, Java shifts back towards a purely synchronous model, while retaining high performance. Does this render initiatives like Reactive Streams obsolete? Can we combine the benefits of Reactive Streams with the approachability of Virtual Threads, the elasticity of modern Java, and the guarantees of functional programming? And what are the tradeoffs? **About Adam Warski** Adam Warski is the co-founder of SoftwareMill and head of R&D at VirtusLab, where he primarily generates code using Java, Scala, Rust and other interesting technologies. He is actively involved in open-source projects, such as Ox, Jox, Tapir, sttp, and others. He has also been a speaker at major conferences, including JavaOne, Devoxx, GeeCON and ScalaDays. In addition to writing closed- and open-source software, he spends his free time exploring various programming-related subjects. Any ideas or insights he gains usually end up on his blog ([https://warski.org/articles](https://warski.org/articles)). **Armeria: The Microservices Framework You Haven't Tried Yet** "One port to rule them all" .. that's the promise of Armeria, the microservice framework created by the creator of Netty, Trustin Lee. Armeria has built-in support for gRPC and Thrift, automatic endpoint descriptions (OpenAPI) and works with your Spring Boot App, your legacy Tomcat project or your dropwizzard app. We'll take a look at these (and more) features in this talk. **About Dominik Dorn** Dominik Dorn is a senior software engineer in Vienna and has been running the Java Vienna Meetup since \~2009. He has extensive knowledge in the Java and Scala ecosystems. He sometimes "tweets" on [https://x.com/domdorn](https://x.com/domdorn) . You can also find him on [Linkedin](https://www.linkedin.com/in/dominik-dorn/) where he happily accepts new connections from the community. He is doing freelance software consulting, so if your company needs help, he might have some resources left for helping you.

Get ready for an epic night of board games at the SpielBar! 🌟 We're hosting a monthly Meetup where you can dive into a world of fun, strategy, and laughter. From easy-going games for beginners to thrilling challenges for the pros, we have something for everyone. Don't worry about the rules; I'll be there to walk you through every step, ensuring a smooth and enjoyable experience for all. The SpielBar offers a fantastic selection of games, so you're in for a treat! RSVP now to secure your spot, and join us for an evening full of board games, and fun. 🎲🎉🏳️‍🌈 **How does it work?** We meet at 6:30 pm. Once we're gathered, we'll choose the games we want to play. If we're more than 6 people, we'll split up and play different games simultaneously. You can, of course, bring a board game with you and suggest it! We will finish the event by bringing everyone together again for a casual get-together.

Join me for a photo walk! :) To start off pride month, we will do a colour hunt. This means everyine gets assigned a colour that they will try to photograph during the walk :) We will gather at Burgtheater, than walk past Minoritenkirche, Cafe Central, Michaelerplatz and Zwidemu to MQ. There everyone is welcome to join me for a drink. The event is free of charge, and suitable for all ages and for any gear (phone is fine!) IMPORTANT: This photowalk is meant only for LGBTQIA+ people.

So hast du andere Leute in Wien wahrscheinlich noch nie kennengelernt! Bis zu 10 Singles, die sich zuvor nicht kennen, treffen sich in einer Bar und lernen sich bei einem eigens für diese Veranstaltungsreihe entwickelten Spiel näher kennen. Das Spiel kombiniert eine gelungene Mischung aus Fragen, Aktionsaufgaben und lustiger Unterhaltung, die alleine oder als Team gemeistert werden. Durch verschiedene Aufgaben und Fragen kommen die Spieler in direkte Interaktion miteinander und lernen sich im Spielverlauf näher kennen. Im Vergleich zur klassischen Single Party lernst du bei Socialmatch wirklich nur Singles in deiner Altersgruppe kennen und kommst von ganz alleine ins Gespräch mit den anderen Teilnehmern. Ein Spielmoderator vor Ort informiert über den Ablauf und leitet durch den Abend. Sicher dir jetzt deinen Platz beim nächsten Event unter [[www.socialmatch.de](http://www.socialmatch.de/)] und lerne neue Leute in deiner Stadt kennen. Dieses Event ist für die Altersgruppe 20 - 35 Jahre. P.S. Socialmatch erhielt 2015 bereits einen Award für das Konzept, teste es selbst ;-) **Achtung: Nur mit Buchung über die Website ist eine Teilnahme möglich!**

Hello Viennovans! Pickwick's is getting quizzical every monday night! You have a chance to win a round of shots, a 40€ bar tab and/or eternal bragging rights 😉 Teams of up to 6 people, reserve your spot today! Start time is 7! FREE SHOT FOR EVERYONE COMING FROM VIENNOVA!

A Board Game Evening at Munchy The Urban Kitchen am Schottenring! Come, play, socialize, meet and enjoy! You can bring your own games or choose from the ones available. We have: * Jenga * Monopoly * Tabu * Uno and so on... We are excited to see you here! Enjoy your nice Monday evening! 🥳 [Follow us on Instagram](https://www.instagram.com/makingfriendsinvienna)❤️ [Follow us on Facebook](https://www.facebook.com/makingfriendsinvienna)💙 Do you have questions? Write us on Instagram 🎉

Agenda (preliminary) 18:00 doors open 18:20 welcome 18:30 Talk 1 19:30 break 20:00 Talk 2 21:00 Networking **A Tour of Ox 1.0: Direct-Style Concurrency and Resiliency** Ox provides a toolkit for safe concurrency and resiliency for Scala on the JVM. After two years of prototyping, we’re delighted to showcase the final product. With Ox, you can build and deliver direct-style Scala applications today. In the code-first presentation, we’ll begin with concurrency (including lower-level structured concurrency scopes and higher-level concurrency operators). Next, we’ll proceed to Ox’s approach to error management and type safety in that area. We’ll then explore Ox’s direct-but-reactive streaming library before concluding with its built-in resiliency toolkit. Software is never finished, so we’ll also share what lies ahead for Ox specifically and our plans for direct-style Scala generally. **About Adam Warski** Adam Warski is the co-founder of SoftwareMill and head of R&D at VirtusLab, where he primarily generates code using Java, Scala, Rust and other interesting technologies. He is actively involved in open-source projects, such as Ox, Jox, Tapir, sttp, and others. He has also been a speaker at major conferences, including JavaOne, Devoxx, GeeCON and ScalaDays. In addition to writing closed- and open-source software, he spends his free time exploring various programming-related subjects. Any ideas or insights he gains usually end up on his blog ([https://warski.org/articles](https://warski.org/articles)).

**Does your LLM speak the same language as you?** *Context, Language & AI in Domain‑Driven Design* Zutaten allein reichen nicht. In Domain‑Driven Design (DDD) entscheiden Kontext, gemeinsame Sprache und Abgrenzung über gute Software – und über sinnvolle Nutzung von LLMs im Unternehmen. In diesem Meetup verbinden wir strategisches DDD, Ubiquitous Language und AI: * Warum Kontext wichtiger ist als Zutaten (erklärt am italienischen Dinner) * Warum gemeinsame Sprache kein Glossar, sondern ein Arbeitsinstrument ist * Wie viel Kontext ein LLM wirklich braucht – und warum unser Team denselben braucht Wir diskutieren LLMs nicht als Ersatz für Zusammenarbeit, sondern als **Verstärker von gutem Domain‑Wissen**. **Agenda** * Quick Intro: Kontext als roter Faden * Strategisches DDD: Zutaten ≠ Lösung * Ubiquitous Language: Sprache als Entscheidungsgrundlage * LLMs im Business: impliziter vs. expliziter Kontext * Diskussion & Q&A **Timeline** 🚪 17:00 Open doors 🎬 17:30 Official start 🍕 19:30 Pizza and Networking \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **English Version:** Does your LLM speak the same language as you? Context, Language & AI in Domain‑Driven Design Ingredients alone aren't enough. In Domain‑Driven Design (DDD), context, shared language, and clear boundaries determine good software – and the meaningful use of LLMs in an organization. In this meetup, we connect strategic DDD, Ubiquitous Language, and AI: Why context matters more than ingredients (explained through an Italian dinner) Why shared language isn't a glossary, but a working instrument How much context an LLM really needs – and why our team needs the same We discuss LLMs not as a replacement for collaboration, but as an amplifier of good domain knowledge. Agenda Quick Intro: Context as the common thread Strategic DDD: Ingredients ≠ Solution Ubiquitous Language: Language as a basis for decisions LLMs in Business: implicit vs. explicit context Discussion & Q&A \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 🎤 **Call for Speakers & Sponsors!** Wenn du selbst etwas beitragen möchtest oder eine Idee für einen Talk hast, melde dich gerne bei uns. Wir sind laufend auf der Suche – nicht nur nach Speaker:innen, sondern auch nach neuen Locations für zukünftige Meetups.

**❗️ 👉 TO THE EVENT:** [Does your LLM speak the same language as you?](https://www.meetup.com/ddd-vienna/events/314052752/?utm_medium=referral&utm_campaign=share-btn_savedevents_share_modal&utm_source=link&utm_version=v2&member_id=357085385)[ ](https://www.meetup.com/java-and-friends/events/313430813/?utm_medium=referral&utm_campaign=share-btn_savedevents_share_modal&utm_source=link&utm_version=v2&member_id=357085385)**❗️** In cooperation with the [Domain-Driven Design Vienna](https://www.meetup.com/ddd-vienna/) Community we are hosting a meetup **at the SQUER Office Vienna.** **👉** Please register on the dedicated [Does your LLM speak the same language as you?](https://www.meetup.com/ddd-vienna/events/314052752/?utm_medium=referral&utm_campaign=share-btn_savedevents_share_modal&utm_source=link&utm_version=v2&member_id=357085385) Page to join us on June 2nd at 5:00 PM 🥳 We are looking forward to seeing you there!

**Does your LLM speak the same language as you?** *Context, Language & AI in Domain‑Driven Design* Zutaten allein reichen nicht. In Domain‑Driven Design (DDD) entscheiden Kontext, gemeinsame Sprache und Abgrenzung über gute Software – und über sinnvolle Nutzung von LLMs im Unternehmen. In diesem Meetup verbinden wir strategisches DDD, Ubiquitous Language und AI: * Warum Kontext wichtiger ist als Zutaten (erklärt am italienischen Dinner) * Warum gemeinsame Sprache kein Glossar, sondern ein Arbeitsinstrument ist * Wie viel Kontext ein LLM wirklich braucht – und warum unser Team denselben braucht Wir diskutieren LLMs nicht als Ersatz für Zusammenarbeit, sondern als **Verstärker von gutem Domain‑Wissen**. **Agenda** * Quick Intro: Kontext als roter Faden * Strategisches DDD: Zutaten ≠ Lösung * Ubiquitous Language: Sprache als Entscheidungsgrundlage * LLMs im Business: impliziter vs. expliziter Kontext * Diskussion & Q&A **Timeline** 🚪 17:00 Open doors 🎬 17:30 Official start 🍕 19:30 Pizza and Networking \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **English Version:** Does your LLM speak the same language as you? Context, Language & AI in Domain‑Driven Design Ingredients alone aren't enough. In Domain‑Driven Design (DDD), context, shared language, and clear boundaries determine good software – and the meaningful use of LLMs in an organization. In this meetup, we connect strategic DDD, Ubiquitous Language, and AI: Why context matters more than ingredients (explained through an Italian dinner) Why shared language isn't a glossary, but a working instrument. How much context an LLM really needs – and why our team needs the same We discuss LLMs not as a replacement for collaboration, but as an amplifier of good domain knowledge. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Dieses Meetup ist eine Zusammenarbeit mit dem [DDD Vienna Meetup](https://www.meetup.com/ddd-vienna/events/314052752/?). Anmeldung auf einer von beiden Meetups ist ausreichend. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 🎤 **Call for Speakers & Sponsors!** Wenn du selbst etwas beitragen möchtest oder eine Idee für einen Talk hast, melde dich gerne bei uns. Wir sind laufend auf der Suche – nicht nur nach Speaker:innen, sondern auch nach neuen Locations für zukünftige Meetups.

Summer is arriving in Vienna - and so is our next AWS meetup! ☀️ For our June edition, we’re going back to building: serverless architectures, modern cloud workflows, and a touch of AI to explore how these worlds increasingly connect in real projects. A big thank you to **Eversports** for supporting the community and making the meetup possible! 🙌 *** 📍 **Location** Eversport GmbH Jakov-Lind-Straße 13 H/5. OG, 1020 Wien 🕒 **When** **June 2nd 2026** Doors open at 17:00 for networking, food & drinks. Talks start at 18:00. *** 🗓️ **Agenda** * **17:00 - 18:00:** Entry & Networking * **18:00 - 18:05:** Welcome and Introduction AWS Community Vienna * **18:05 - 18:10:** Welcome and Introduction to the sponsors (**Eversports**) * **18:10 - 19:00:** **"Building Conversational Agents in Code with AWS Lambda Durable Functions"** * **19:00 - 19:20:** Networking break * **19:20 - 20:00:** **"How RBI is automating its cloud foundation with AWS Step Functions"** * **20:00 – Open End:** Networking **"Building Conversational Agents in Code with AWS Lambda Durable Functions"** *Speaker:* **[Gunnar Grosch](https://www.linkedin.com/in/gunnargrosch/)**\, Developer Advocate at Sinch \| ex\-AWS \| AWS Serverless Hero *About the talk:* Building agentic AI workflows typically requires Step Functions or complex database state machines to handle human delays. AWS Lambda Durable Functions change that. You write sequential code in a single Lambda function that can suspend for days and resume instantly, and you only pay for active compute time. In this session, we will orchestrate Amazon Bedrock conversational agents using the Sinch Conversation API to handle inbound interactions. You will learn how to dispatch AI specialists, use simple callbacks to wait for asynchronous human input, and replace heavy infrastructure boilerplate with native durable execution. **"How RBI is automating its cloud foundation with AWS Step Functions"** *Speaker:* **[Roman Jokel](https://www.linkedin.com/in/roman-jokel/),** Cloud Architect (Raiffeisen Informatik) **/ [Florian Ettinger](https://www.linkedin.com/in/florian-ettinger/),** Solution Architect (AWS) *About the talk:* How can AWS Step Functions transform daily cloud operations? Join us to explore how RBI is using workflow orchestration to automate its cloud foundation. We’ll share practical insights from our Cloud Center of Excellence, demonstrating how Step Functions power landing zone operations, simplify automation, speed up deployments and enable scalable cloud governance across the organization. *** 💛 **Sponsors:** * **Eversports** - [eversports.at](https://www.eversports.at/) *** 📌 **RSVP now** and invite your colleagues to celebrate, learn, and connect with the AWS community! By RSVPing, you confirm that you agree to our [Code of Conduct](http://aws-meetup-vie.s3-website.eu-central-1.amazonaws.com/AWS_Meetup_Vienna-Code_Of_Conduct.pdf). **By submitting your RSVP, you acknowledge that photos and videos may be taken during the event. If you prefer not to appear in such recordings, please let the organizer know before the event. Please note that we cannot guarantee the retrospective removal, blurring, or editing of individual attendees in group photos or event footage. Any publication of identifiable individual portraits will be subject to separate consent where required.**

We are pleased to welcome Katrina Brock from Max Planck Society to present an R package for analyzing animal movement data. Join us to explore how R can be put to work in animal behaviour research. **Travel Paths: Bridging the usability gap in open source animal movement algorithms** The behavior ecology literature offers a rich library of approaches for finding patterns in animal movement data. While many of the biologists developing these algorithms publish their code, it is rarely optimized for reuse. Even well-designed packages with similar workflows have different interfaces that potential users need to learn one by one. By wrapping these algorithms in a standardized interface, the “Travel Paths” framework reduces researcher toil. Instead of digging through scripts and learning disparate conventions, they can run many methods with just a few functions. The framework is composed of two packages: the trackframe package provides a flexible and interoperable format for input data while the travelpaths package, taking inspiration from parsnip, offers the interface for movement models. In this talk, we’ll discuss how we designed this framework and how it can be leveraged to enable even novice R users to apply a variety of methods to their animal movement data.

Are you interested in product management and user experience? Are you an early bird? Join us for **UX Vienna Mornings**, a casual breakfast meetup. Meet like-minded people, discuss interesting topics, and expand your professional network in a great atmosphere. Our agenda: 1. Introduce yourself: Share what you do or what you like. 2. Learn about job opportunities and upcoming events. 3. Discuss your topics or projects. Is there a question you would like to discuss? Or a project you would like to share? Please bring them along! 4. Network and chat. **UX Vienna Mornings** take place on the first Friday of every month from 8 am to 10 am. Please note that this location only accepts cash. By participating, you agree that your likeness may be recorded and authorise UX Vienna to use any recording containing your likeness in any medium for any purpose. Accessible services for people with special needs: For assistance from a public transport stop to the venue and back, please email Max Scheugl at m@nofro.com

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

**🔥 Lincoln Street Salsa HAS MOVED TO EVERY FRIDAY, NO MORE SATURDAYS!** **🔥 Lincoln Street Salsa @ 1717 Brice Rd, Reynoldsburg 43068** **🔥 Salsa, Bachata, Merengue Dancing!** **🔥 NO PARTNER OR EXPERIENCE NEEDED!** **🔥 Every FRIDAY, 8 pm - 1 am** **🔥 8:00 pm - 8:30 pm = Registration** **🔥 8:30 pm - 9:30 pm = Beginner Dance Class** **🔥 9:30 pm - 1:00 am = Open Dance Party** **🔥 LincolnStreetSalsa.com** **🔥 Questions? Text Todd 614-774-8146**

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

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm