Golang

**IMPORTANT UPDATE:** Due to unexpected sick leaves within our speaker and organizing team, **we have to postpone this MeetUp to June 25th**. Everything else stays the same. **@everyone: Please review and update your RSVP status accordingly.** \-\-\- We'd like to invite you to our fourth installation for the Cloud Native Vienna MeetUps in 2026! Again we'll have two deep-dive talks and time to network and chat with friends in the Viennese cloud native community. A big thank you to **WKO Inhouse GmbH** for hosting us and providing food and drinks! **Agenda:** * **17:30:** Doors Open & Networking * **17:55:** Welcome from the Organizers * **18:00:** **Talk 1:** Rober Klonner (WKO Inhouse GmbH) **GitOps Visibility: Precise Argo CD diffs on every Pull Request** * **18:45:** Break & Refreshments * **19:00:** **Talk 2:** Thomas Hanser (Untis GmbH) **The Untis Platform Engineering Journey: GitOps Multi-Tenancy with Flux, GitLab, and Friends** * **19:45:** Open Networking We look forward to seeing you there! \-\-\- **Talks:** Rober Klonner (WKO Inhouse Gmbh) **GitOps Visibility: Precise Argo CD diffs on every Pull Request** Today's GitOps deployments are generated through layers of templating - Helm charts, Kustomize or ApplicationSets. Modifying these abstractions and trying to mentally render the output is error-prone. This talk introduces a method that uses Argo CD itself to render accurate diffs of Helm charts and Kustomize overlays between branches and posts the result directly on your pull request. We'll walk through a production setup using the Argo CD Operator, Argo CD Diff Preview, and GitLab CI, optimized for performance, minimal maintenance, and security. Through real-world use cases, we'll show what issues this approach catches before they hit your cluster. Thomas Hanser (Untis GmbH) **The Untis Platform Engineering Journey: GitOps Multi-Tenancy with Flux, GitLab, and Friends** Operating in the European education sector means juggling compliance, student privacy and massive traffic spikes when school starts. Historically at Untis, keeping this running in production was the burden of a single operations team. This session details our transition to an automated, multi-tenant GitOps platform managing a fleet of internal and external Kubernetes clusters. We share our approach of building a platform that gives product teams actual autonomy without compromising on security or control: * **Structured Multi-Tenancy:** Mapping GitLab groups to namespaced tenant projects using Flux’s multi-tenant model. * **Secure Access Control:** Leveraging the GitLab Agent for Kubernetes to enable scoped, declarative self-service cluster access. * **Flexible Delivery Models:** Supporting multiple decentralized deployment strategies by balancing governance and freedom for both internal teams and external guest environments. Prepare for an honest demonstration of challenges like managing secret lifecycles across a growing fleet, moving from script-driven tenant onboarding to true automated self-service, and wrestling with the classic "chicken-and-egg" problems of bootstrapping Flux and handling GitOps release management.

Casual event for all German learners to interact and practice their language skills in a stress-free setting. Event is moderated and spiced up with social games to improve German proficiency. Suitable for levels A2-C1, patient native speakers are welcome too. Admission: EUR 10.00 cash at the door (including 2 free drinks) Discount for participants/alumni of the https://wien.expat.info/germancourse To secure your spots, please ... * Step 1: RSVP here on Meetup first (optional but recommended) * Step 2: Complete your registration at [https://wien.expat.info/germannight](https://wien.expat.info/germannight)

To contact the main organizer for any information about our events, please use this number: +436767401074 (Also WhatsApp) Welcome to our friendly badminton event! Let's get moving, improve our game, and make new friends. We will be playing every Thursday from 06:00 PM to 08:00 PM. Very important: this event is for you if your level is intermediate or any higher level above that. 🏸🙂 **If you're joining us for the first time, the organizer will contact you directly to confirm that you have the required level for this event.** Feather shuttlecock will be use for this event, and it will be provided by the host. The location: Sport and Fun Halle Leopoldstadt / Venediger Au 11, 1020 Wien The Price: We try our best to provide you with the best price in Vienna. You will be paying 9.5 Euro for 2 hours. How to pay: We accept card payment and cash (card payments are preferred) Number of players : We have 2 courts reserved for this event and aiming to have 10-11 players in total (so we can take a small break between matches) Remember to bring your own racket, please. Cancellation policy: 1- Canceling 24 hours before the event = free cancellation 2- Cancellation after the 24-hour deadline = we will ask you kindly to pay the event fee if we are not able to find a suitable replacement. (No exception) In case of not paying = banned from future events. See you on the court :)

The biggest football tournament on earth is finally here! 🌍🏆 The FIFA World Cup 2026 is taking over the USA, Canada, and Mexico, and we are bringing all the action, energy, and stadium atmosphere straight to you. Whether you are a die-hard football fan or just love the unmatched vibe of a global tournament, this is the place to be! We are hosting our official World Cup Watchparties at **Munchy The Urban Kitchen** – your favorite local pub with great screens, cold drinks, and an amazing community of sports lovers. Reserve your table here - Follow the link: https://urbankitchen.at/ Enjoy your Watchpartie! 🥳 [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 🎉

**Important note on RSVPs** To keep the breakfast format focused and useful, registrations are reviewed manually. Meetup may show the event as “full” because we are using the waitlist to manage confirmations. **Please still join the waitlist if you would like to attend.** We will review registrations and confirm participants individually. Thank you! **SNOWFLAKE & ACTIAN Breakfast at SPG** **How AI changes enterprise data search?** with **Ole Olesen-Bagneux** Join us for a breakfast meetup at the SPG office in Vienna together with Snowflake and Actian. O'Reilly Author Ole Olesen-Bagneux will share his perspective on how AI is changing enterprise data search, what this means for modern data platforms, and how organizations should think about metadata, context, governance, and usability in the AI era. We will also include a short **Snowflake update post-summit**, following the latest developments from the Snowflake Summit in San Francisco. Expect coffee, breakfast, good conversations, and a practical discussion for data leaders, architects, engineers, and everyone working on modern enterprise data platforms. **When** 25\. Juni 2026\, 08:30–11:00 **Where** SPG Office Hoher Markt 5 1010 Wien **Agenda** 08:30 – Arrival, breakfast & networking 09:00 – Welcome by SPG 09:15 – Actian: How AI changes enterprise data search? 10:00 – Snowflake: update post-summit 10:20 – Q&A and discussion 10:40 – Coffee, networking & wrap-up Looking forward to seeing you at SPG.

**Open Source Talks by OffOn x Dynatrace** **❗️Meetup is for discovery only. Don't rely on it for availability or capacity. The actual limit is 50 people.** **👉 RSVP on our website to confirm your spot: [RSVP HERE](https://community.offon.dev/t/open-source-talks-by-offon-x-dynatrace-june-25th/1579)** June 25, 2026 · Vienna Join us for the first Open Source Talks, a community-driven meetup for the Austrian open source community. Two speakers, a quiz, and networking with people from different OSS projects and communities. Open Source · Vendor Agnostic · Community Driven TALKS: * Drupal CMS by [Nico Grienauer](https://www.linkedin.com/in/grienauer/) and [Sinduri Guntupalli](https://www.linkedin.com/in/sinduri-guntupalli-307542131/) * Flip the Switch: Feature Flags and the Power of Open Standards by [Simon Schrottner ](https://schrottner.at/) \-\-\- AGENDA 17:30 — Doors open, networking (30 min) 18:00 — Welcome, OffOn.dev intro (10 min) 18:10 — Drupal CMS 2.0 by Nico Grienauer (25 min + 5 min Q&A) 18:40 — Break (15 min) 18:55 — Flip the Switch: Feature Flags and the Power of Open Standards by Simon Schrottner (25 min + 5 min Q&A) 19:25 — Open floor, networking (15 min) 19:40 — Open Source Quiz (15 min) 19:55 — Wrap-up, next event teaser (5 min) 20:00 — Networking ## SPEAKERS * [Nico Grienauer](https://www.linkedin.com/in/grienauer/): Drupal expert and Drupal Austria board member. Founder of acolono GmbH, CodeWeekEU ambassador, and initiator of Austrian Open Source Award. * [Sinduri Guntupalli](https://www.linkedin.com/in/sinduri-guntupalli-307542131/): Sr Developer Programs Engineer at Dynatrace. Experienced in product and program management, and web development. Passionate about open source with active involvement in the Drupal community. * [Simon Schrottner](https://schrottner.at/): OpenFeature maintainer and CNCF Ambassador. Helps teams release faster through open standards and feature flagging. \-\-\- **[LOCATION](https://maps.app.goo.gl/gziYEaS61aMbid6L7)** Dynatrace Austria GmbH THE ICON VIENNA · Tower 24 · 22nd Floor Wiedner Gürtel 13, 1100 Vienna Getting there: \- Ask for a visitor's card at the info point \(they'll direct you to the 22nd floor\) \- Hold your card against the reader at the second glass door \- At the turnstiles\, scan your card and note the elevator letter on the screen \- Take the elevator to floor 22 \-\-\- **❗️Meetup is for discovery only. Don't rely on it for availability or capacity. The actual limit is 50 people.** **👉 RSVP on our website to confirm your spot: [RSVP HERE](https://community.offon.dev/t/open-source-talks-by-offon-x-dynatrace-june-25th/1579)** Want to learn more about OffOn? [Visit our about page](https://offon.dev/about/) Questions? Email offondev@gmail.com

Hey Badminton Enthusiasts! **This meet-up is only for intermediate players and up!** Everyone is welcome to join our large weekly events, test their skills and have some fun together! However, ***this event is for the people that want to push their skill forward and would like to play during the week as well.*** The host will reserve courts in advance, that means please only register if you really plan to come (or cancel at least 24 hours before the event starts). The fee for this event is 12€: *If you plan on paying in cash, please bring the exact amount as the host might not have any change available - you can also pay via card on the spot We are meeting at about 18.55 pm near the reception by the lounge area (next to the courts). Come a bit earlier so you have time to change into workout/sports clothes. The locker rooms are free to use, but for the men lockers you need a padlock - or you can also take your bag of clothes upstairs to the courts if you do not have a padlock. Also, bring clean indoor sports shoes, your racket and a water bottle with you. If you are just passing through town and do not have a racket, it is possible to rent rackets, either from the club or from us. Sometimes the host or other members have spare rackets - please ask in the comment section below! If you are joining our events for the first time, **WELCOME!** We are an open and friendly group and we are sure you will develop connections with the people in our community in no time! Without further ado - let's play some (intermediate) badminton and have fun together!

FlashAttention is one of the most important pieces of software infrastructure for both training and serving any relevant AI model on cutting-edge GPUs. Let's have a look under the hood. The paper comes with a blog post that may be easier to read: [https://tridao.me/blog/2024/flash3/](https://tridao.me/blog/2024/flash3/) Find the paper here: [https://arxiv.org/abs/2407.08608](https://arxiv.org/abs/2407.08608) We are trying out a new Location -- right at the Westbahnhof IKEA. Take the elevator to the fifth. We may relocate if it is too crowded. Please Text me if you are late and can't find us. \-\-\- Bring your own printout or pdf-on-a-gadget. If you didn't have the time to read the whole paper, it is sufficient to be able to pretend to have sort of skimmed it. \-\-\- Want to suggest a paper, an event location, or just stay in touch with regular members? We hang out at the following Matrix server: [https://matrix.to/#/%23pwl-wien:rend.al](https://matrix.to/#/%23pwl-wien:rend.al)

[*Included in the [Tango Learning Pass](https://www.jessicagerdel.com/tango-learning-pass/)*] **A grounded, embodied approach to Tango Argentino for beginners building foundations and improvers seeking clarity, depth, and freedom.** **Every Sunday (except during our Tango Immersion Weekends)**, we explore the essentials of Tango Argentino focusing not only on what to do, but on how and why we move the way we do in this dance. ✨ **No previous experience required**, just curiosity to work with essential principles that allow you to understand the Tango Argentino language sooner, and adapt easier to real social dance situations. **✨ Experienced dancers refine technique and efficiency of their movements** ✨ **You can come with or without a dance partner**, and learn the role(s) of your choice (Jessica encourages to learn both). ✨ **Each class is followed by our Focused Práctica**, a guided practice gathering for all levels, where you can take time to socialize and integrate what you learned, ask questions, receive feedback, and practice in a relaxed and supportive environment. **Sundays** (except during [Tango Immersion Weekends](https://www.jessicagerdel.com/tangoimmersion)) **19:00–20:00** Tango Basics Class **20:00–22:00** Practice Gathering with feedback **@ Breitenseer Straße 6, 1140 Wien** (door on the corner) ### Drop-in or register [here](https://www.jessicagerdel.com/tangobasics/#start). **The [Tango Learning Pass](https://www.jessicagerdel.com/tango-learning-pass/) includes our weekly classes (Wednesday and this Sunday course) and the practice sessions.** €20 per person per class €15 per person per Guided Practice session €85 pack of 4 classes in a row + Guided Practice sessions after each class Participants with low income can request the Solidaritarif (-20%) via email or in person. PS. This course doesn't include classes on May 17th, June 21st and July 19th because of the [Tango Immersion](https://www.jessicagerdel.com/tangoimmersion) Weekends. Jessica will guide you on which workshops are suitable for beginners if you want to join those weekends too. **Teaching approach** Spoiler alert: This is not about copying and memorizing steps. Jessica's teaching focus is on body awareness, connection, and developing good habits from the start — so what you learn works in real social dance situations and truly supports your dance in the long term. **Check out more about her work at [jessicagerdel.com](https://www.jessicagerdel.com/) and on [Facebook](https://www.facebook.com/tangoimmersion/)/[Instagram](http://www.instagram.com/abrazatango): Abrazatango.** Looking forward to seeing you there!

**Focused Práctica for all levels –** *Included in the new [Tango Learning Pass](https://www.jessicagerdel.com/tango-learning-pass/), the 4-block of the [Tango Basics Course](https://www.jessicagerdel.com/tangobasics/), and the semester/yearly subscription to the [Tango Immersion Program.](https://www.jessicagerdel.com/tangoimmersion/) Attending just the Práctica? Get advantage of the 5-block (€60) and the 10-block (€100). Single Práctica sessions are €15.* Looking for a space to practice Tango Argentino with intention? The Focused Prácticas are open practice gatherings for dancers of all levels, whether you’re just starting out, deepening your foundations, or refining more advanced skills. **You’re welcome to:** Train individual technique or work in pairs Practice the role(s) of your choice – Most regular attendants practice both Explore what you want for as long as you like Repeat, research, and integrate what you’re currently learning wherever that may be **This is not a class, and not a milonga.** **It’s a space for mindful practice, curiosity, and experimentation.** There's plenty of room for those who want to practice navigation in ronda or something else on a fixed spot without disturbing each other's process. It's not required to attend my classes to join, the Focused Prácticas are open to all backgrounds. **Here you can expect:** A welcoming, respectful atmosphere Space to focus without pressure Supportive presence if questions arise Freedom to choose what you want to work on Socializing and exchanging feedback with others is welcome; consent and respecting each person’s process is the base. When I'm traveling, the Focused Prácticas are hosted by Justina. **When & Where?** Sundays at 20:00, after the Tango Basics class\* EWTO Akademie – Breitenseer Straße 6, 1140 Wien \*Except during our [Tango Immersion Weekends](https://www.jessicagerdel.com/tangoimmersion), in which the Práctica takes place on Saturdays at 20:15 at a different location. Check our calendar for details. **Whether you’re building foundations, maintaining a regular practice habit, or simply looking for a place to dance with intention, you’re warmly invited.** Come as you are. Practice what matters to you. Grow together with intention. See you on the dance floor! Abrazo, Jessica **Check out our full calendar at jessicagerdel.com** **Facebook/Instagram: Abrazatango**

**Hey everybody!** Do you want to code together, share your projects, or just hang out in a creative atmosphere? Then join us at the **Coding Club @ Jo&Joe Hostel**! We usually start with a short introduction round so everyone can get to know each other. After that, you can: * share your achievements or pet projects (informal, just at the table) * get feedback or inspiration from others * or simply work on your own project alongside the group Bring your laptop (or any device you like to code on) if you want to actively work. Or just come by to connect and get inspired. Please try to be on time so we can kick things off together. Looking forward to seeing you there! 🚀

To contact the main organizer for any information about our events, please use this number: +436767401074 (Also WhatsApp) Welcome to our friendly badminton event! Let's get moving, improve our game, and make new friends. We will be playing every Sunday from 11:00 AM to 01:00 PM. **Very important: this event is for you if your level is intermediate or any higher level above that. 🏸🙂** **If you're joining us for the first time, the organizer will contact you directly to confirm that you have the required level for this event.** Feather shuttlecock will be used for this event, and it will be provided by the host. The location: Tennispoint, Baumgasse 87, 1030 Wien The Price: We try our best to provide you with the best price in Vienna. You will be paying 10 euros for 2 hours. How to pay: We accept card payments and cash (card payments are preferred) Number of players: It depends on how many courts we get, 6 for 1 court and about 10-11 for 2 courts (so we can take a small break between matches) Remember to bring your own racket please, or you can rent one at the reception for about 3 euros **Cancellation policy:** 1- Canceling 48 hours before the event = free cancellation 2- Cancellation after the 48-hour deadline = we will ask you kindly to pay the event fee if we are not able to find a suitable replacement. (No exception) In case of not paying = banned from future events. See you on the court :)

If you are curious to know about what Notion can do this meetup is for you. **Speakers:** Philipp Stelzel, Nooa Adams and Beatrix Beer **Agenda**: We will present a workflow in **two different AI environments** — **Notion AI** and **Claude** — where an **AI agent turns AI meeting notes into a draft offer** (positioning, outline, and key messaging), and we’ll compare the process, the results, and the **credits/tokens consumed** while producing the same outcome. Philipp will demo the workflow using Notion AI and we’ll track how many AI credits it consumes along the way. Nooa will run the exact same workflow in Claude so we can compare results side-by-side and see how the credit usage differs. Beatrix will present in German about „Mehr als Mails und PDFs – mit einem Notion-Kundenportal zur Premium-Kundenbetreuung“ **Afterwards**: Drinks, food, networking, template swaps, and questions answered. Join us, meet fellow Notioneers, and level up your workflow

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

We meet to learn and practice American Sign Language and to grow our familiarity with Deaf culture. Facilitated by hearing folks (with a connection to a professional interpreter) using Deaf-created content. People of all ASL skill levels are welcome! As we learn, we hope to connect more with the Deaf community in Central Ohio. Join us as you're able! Come regularly or just once - whatever you're looking for! Each meetup will explore different topics related to ASL/Deaf culture, and will feature time to practice conversation with one another. Just bring yourself and a willingness to learn!

**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

**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** *Customize the IDE: Building Extensions for Visual Studio Code* Visual Studio Code is one of the most widely used development environments today, and much of its flexibility comes from its extension ecosystem. Extensions allow developers to customize the editor with new features, integrations, and workflow improvements tailored to their needs. In this session, we’ll cover what extensions are and the different types available, including full extensions written in TypeScript or JavaScript, along with lighter-weight extensions such as color themes, language packs, language support, code snippets, and keymaps. We’ll also look at practical reasons a developer might create an extension, from automating repetitive tasks to adding custom tooling. The session includes a hands-on walkthrough of creating a new extension, testing it locally, and understanding the basic project structure. We’ll close with a brief overview of how extensions are packaged and published to the Visual Studio Marketplace and other distribution options. **YouTube Link** TBD

We meet at lunch each week and each meeting follows a fairly organized agenda. First all participants pass their business cards around. Then each member and guest is invited to give a one-minute overview of their company and what is a perfect referral for the week. We always have a 10 minute presentation from one of the members about their business in more detail. And finally we pass referrals. You're welcome to visit. Nobody is ever put on the spot. Bring plenty of cards!

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