C & C++

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 :)

LFU looks deceptively close to LRU: both caches evict the "least useful" item. We'll look at how the ordering rule affects data structure design. We'll discuss the algorithmic tradeoffs behind LFU and compare different implementation strategies, ending with benchmarks in C++ and Rust. Date and time: **25th of June (Thursday), 6 pm** Location: **Beograđanka, Vidikovac, 22nd floor** Address: **Masarikova 5** Online: **[C++ Serbia YouTube](https://www.youtube.com/watch?v=PwmFvXE_K9I)** To join the community discussions, we are on: * [Discord](https://discord.gg/VDUn8YtHw8) * [Telegram](https://t.me/+l7NS0GrslBMwNzI0) * [Website](https://www.cppserbia.org/) See you!

**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 — Break (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: * When you arrive in the ICON tower, walk straight to the info point (reception) in the Atrium. * Ask for a visitor's card for Dynatrace (22nd floor). They will explain the way to Tower 24. * Walk through the 1st glass door. * At the 2nd glass door, hold your visitor's card (left side) against the card reader to open it. * At the turnstiles, hold your visitor card against the card reader, walk through, and look at the screen on your side while entering. * The screen will display a letter (A to D) telling you which elevator to take. * At the elevator entrance, a small display shows the floor it is going to. Enter if you see the number 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

Mixed indoor volleyball. We play in a friendly atmosphere for fun and enjoyment at intermediate and advanced levels. Unfortunately, if you are a beginner, you cannot participate. If you have registered but are unable to attend, please cancel your registration 48 hours before the start of the match so that others can join. Otherwise, you will be charged the fee. The game costs €10 per person. Thank you for your understanding.

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!

Halfway through 2026, we are curious to find out more about what people in our community have learned: Everyone is invited to **share something that helped them progress in their work this year** \- whether it's a tool\, a book\, an article\, podcast\, project\, or any other insight\. No slides needed\, no pressure: just bring your inspiration and tell us what you learned\, or simply come to listen and be inspired by others\. The second half of the evening is all about **networking and conversation**. Whether you're looking to practice public speaking, connect with fellow UX professionals, or gain fresh perspectives, this is the perfect place to start. Please bring your own drinks and snacks. Tab water is available at the venue. We look forward to seeing you! By participating, you agree that your likeness may be recorded and authorise UX Vienna to use any such recordings for event documentation and promotional purposes.

Dear artists, This time we will have a female model with short and long poses! See you there!

**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! 🚀

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)

Flemish Pronk Still Life 3,5-day Workshop with Devin Cecil-Wishing (Fri eve, Sat, Sun, Mon). Please go to www.viennaatelier.com --> events --> "Flemish Pronk Still Life" ... for details or send email to info@viennaatelier.com 3,5-tägiger "Das flämische Pronkstilleven" Workshop mit Devin Cecil-Wishing (Freitagabend, Samstag, Sonntag, Montag). Bitte gehen Sie auf https://de.viennaatelier.com --> Events --> ""Das flämische Pronkstilleven" für Details oder senden Sie eine Email an info@viennaatelier.com

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 :)

A Branch of the **Social Book Club** focusing on International Cinema. I find films based on the taste profile of the cinephiles that regularly attend. We the Lovely Folks of the **Social Film Club, are back for the 30th Edition** this Saturday! 🎬🌿🕊️ ☀️ We start at **18:30** hrs. Films chosen for this week are: 🎥 **Either one of these two** 🎥**slow, dreamlike masterpieces** — we'll decide together: **1\. The Spirit of the Beehive \(1973\)** A haunting Spanish film seen through the eyes of a young girl after the Civil War. Childhood, silence, and imagination — sparked by a screening of Frankenstein. Mysterious and quietly devastating. IMDb: 7.8/10 – Runtime: 1h 39m. OR **2\. Mirror \(1975\)** Tarkovsky's personal collage of memory, dreams, and Russian history. Childhood, war, and time — drifting between past and present. Non-linear and visually overwhelming. IMDb: 8.0/10 – Runtime: 1h 47m. 🍽️ Post Meetup Food at **China Zentrum Stiegengasse!** 😁😁 If you just joined, please fill up this survey so we can better tailor the films we show. [https://forms.gle/juPwhehSV2NosLee9](https://forms.gle/juPwhehSV2NosLee9) **PS -** I can guarantee comfortable seating for 10 people. People in the waitlist can show up as well, because a lot of people sign up but don't show up. The event takes place at the Social Welfare organization called **MUT**. It is an organisation that works on social issues such as Emergency & Homeless Assistance, Food Rescue and Environment Protection. MUT is a non profit organization that provides us with the space to host the event. A small donation towards their cause helps them a lot.

This is our weekly event! Hey Badminton Enthusiasts! This meet-up is for all levels: beginners, intermediates and experts. Everyone is welcome to join, test their skills and have some fun together! 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€ (for the 2 hours). If you plan on paying in cash, please bring the exact amount as the host might not have any change available. We are meeting at about 10:55 am 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. There is a drinking fountain available if you need to replenish your bottle. If you do not have a racket, it is possible to rent rackets from the club, if necessary (3€). 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! Let the host know that you are new and they will find a place for you. Don't worry, we are an open and friendly group. We are sure you will develop connections with the people in our community in no time! Without further ado - let's play some badminton and have fun together!

**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

**Presenter:** Matthew Hess, Microsoft MVP **Time:** Pizza at 6:00, Presentation Starts at 6:30pm Eastern **Location:** Theoris, 9000 Keystone Crossing, Either Downstairs or in Suite 230 if main meeting room isn't available, Indianapolis In 2019 (C# 8.0) Microsoft introduced a feature that has generated a lot of confusion, debate and outright dissent. I'm talking about Nullable Reference Types. In this presentation, I we dig into this feature, explore why it exists, what problem it tries to solve, how it works, and how people have critiqued it, so that you as a programmer can decide if and how you want to use it. Looking forward to seeing you there!

**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

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

PLEASE NOTE!!! This event will be In-Person for our 2nd Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 2nd event at this location so bare with us as we grow into this space. There's paid street parking on Saturdays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at [info@thecogg.com](mailto:info@thecogg.com) with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)

**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

Early-bird coffee and conversation at [Grandview Grind](https://www.facebook.com/profile.php?id=100063534163841)!