Programming in R

**Location:** Sentry \| Jakov\-Lind\-Straße 5/4OG 1020 Wien \| [https://maps.app.goo.gl/ccu6A5W5Wm9YKcJ46](https://maps.app.goo.gl/ccu6A5W5Wm9YKcJ46) (entrance is next to Max&Benito, 4th floor) **Agenda:** 18:00 \| Arriving\, Networking\, Registration 18:30 \| Keynote and welcome 18:45 \| Talk 1 \| Thomas \| Why Seed7 \- Introducing a programming language\. A classification of Seed7 and a comparison with other languages 19:15 \| Break\, networking 19:30 \| Talk 2 \| Yassin \| Claude Code \- How AI Agents Are Changing the Way We Code \(from hands\-on production experience\) 20:00 \| Open Mic: 1\-Minute Lightning Talks \- add your slide here: [https://docs.google.com/presentation/d/1olwxDZv7fWvu0iJDiRI7FpFQVsSr-PYKd5hduhx8wTA/edit?usp=sharing](https://docs.google.com/presentation/d/1olwxDZv7fWvu0iJDiRI7FpFQVsSr-PYKd5hduhx8wTA/edit?usp=sharing) 20:15 \| Food\, Drinks & Networking till 21:00 ***Overview about Talks:*** **Talk 1st:** **Why Seed7 - Introducing a programming language** A classification of Seed7 and a comparison with other languages. A list of Seed7 advantages. A hello-world Seed7 example program. The advantages of Seed7 are discussed in detail: This includes **compile-time execution**, **integer overflow checks**, the **absence of pointers and NULL**, the static type system, ahead of time compilation, types as first-class citizens, abstract data types, **templates**, **parser as part of the run-time library**, the Extended Backus-Naur Form, **Seed7 Structured Syntax Definition**, defining the semantic of a for-loop, how languages evolve and the **Seed7 test suite**. **Talk 2nd:** **Claude Code - How AI Agents Are Changing the Way We Code** Claude Code is Anthropic's agentic coding CLI that lives in your terminal. it autonomously reads your codebase, edits files, runs tests, and ships PRs — all through natural conversation. I'll give a live demo covering its latest features: * **Sub-agents**: parallel, specialized AI workers with independent context windows * **MCP** (Model Context Protocol): connecting Claude to external tools like Firecrawl for live web search/scraping, databases, Slack, and more — right from the terminal * **Hooks & Skills**: custom automation triggers and reusable slash commands that personalize your workflow * **Plan mode**: aligning on implementation strategy before the AI writes a single line of code * **Auto-memory (CLAUDE.md)**: how the agent learns your project conventions and remembers them across sessions * **Voice mode**: talking to your codebase Whether you use VS Code, JetBrains, or just a terminal — this is the future of developer tooling. Live demo included. **About Thomas Mertes \|** 1978 Learned programming in school 1980 Studied computer science at the Technical University of Vienna 1984 Graduated as Diplom Ingenieur Thesis: Design of an extensible programming language 1986 Graduated as PhD Thesis: Definition of an extensible programming language 1988 – 2025 Work as professional software developer in different companies. Languages used: Pascal, C, C++, Java, Seed7 **About Yassin Hashem \|** Senior AI Engineer at Vendoroo (US), where I build production multi-agent systems, Voice AI pipelines, and automation workflows. Also, building LangChain/LangGraph-based chatbots and FastAPI backends. Open-source contributor to LangGraph and Feast. Currently pursuing an MS in Data Science at TU Wien. **Our sponsor:** Sentry \| [https://sentry.io/](https://sentry.io/) [Coding Club Vienna @Lindedin](https://www.linkedin.com/company/coding-club-vienna/)

Durch das offene Training schaffen wir einen regelmäßigen Ort zum gemeinsamen Improvisieren. Hier können alle mitmachen - es ist keine Vorerfahrung notwendig und wir begeben uns nach einem Kennenlernen und Aufwärmen in die Welt der Impro Szenen und Kurzformate. Es ist sowohl ein Platz zum Ausprobieren für neue ImprospielerInnen als auch zum Üben und Weiterentwickeln für erfahrene ImprospielerInnen. Eintritt: Freie Spende! For Improv in the english language please have a look at the International Improv Community in Vienna ([IICV](https://www.meetup.com/de-DE/International-Improv-Wien/)) on meetup!

**Leader of the session:** [IICV Calendar](https://www.iicv.at/event-calendar) **What is it ?** An open improv session for all experience levels. Come play, explore, and have fun in a supportive, low-pressure environment. **Want to learn improv?** Check this out: [https://www.iicv.at/improvclass](https://www.iicv.at/improvclass) **Want to practice regularly improv in a small group for an affordable price?** Check this out: [https://www.iicv.at/improv-tuesday](https://www.iicv.at/improv-tuesday) **Already intermediate in improv?** Check this out: [https://www.iicv.at/intermediate-classes](https://www.iicv.at/intermediate-classes) **How to register ?** Meetup registration opens on **Sunday 13:00** for the following Wednesday meetup. Should your plans change, we kindly ask you to **cancel.** For security reason, you cannot join the session if you did not registered. **How much ?** Free for IICV members\* 10 Euros for everybody else. You can pay contactless or cash. \* go to [iicv.at](https://www.iicv.at/) to become a member (13EUR per month until you cancel your membership). **Anything to report?** Please give us an anonymous [feedback](https://docs.google.com/forms/d/1oidbMUMs_Zz-rSQ9O4HcR_axPG_zvUb1dc1ssG5IWaw/edit) \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* **Meetup priority**: Please do not enroll to meetup priority!!! You can enroll to any open session without having it (just close the adv. window). **Being meetup priority will not give you any advantage in the waiting list** neither as we will insure to respect the real order of priority. **Photograph policy**: Please be aware that photos will be taken during the open session for social media and newsletters. Before any photos are taken, we ask participants for their consent and provide an opportunity to opt out. **Code of Conduct**: We are a Vienna-based international community seeking to explore, play, practice, and perform improvised arts in a group setting. In treating this space with integrity and professionalism, we are committed to facilitating a harassment-free space for all persons regardless of cultural background, disability, gender, sexual orientation, race, etc. Therefore, the IICV will not tolerate any inappropriate behaviour as per our [Code Of Conduct](https://www.iicv.at/code-of-conduct). Repeated violations of our guidelines can and will result in warnings, removal from sessions, or cancelation of membership. The **International Improv Community in Vienna** IICV e.V. ZVR Nr:1236421179

Dear AI Austrians, It’s time to get together again. **No agenda, no talks, no program.** Just good conversations, familiar faces, and meeting new people from the AI Austria community. Whether you’ve joined our meetups before or this would be your first one: you’re warmly invited. Come by for a quick hello or stay the whole evening — totally up to you. 📍Location: Gleis//Garten Eichenstrasse 2, 1120 Vienna 🕖 Time: From 18:30 - open end. Looking forward to seeing many of you there, AI Austria

Hello Pub quiz Beavers 👋 Ready for another country this week? Its a General Knowledge with a theme running through it to **discover** the **following weeks** country Quiz 😉 A bucket of 40 or so questions and topics including Picture round, Language round, General Knowledge, Music, Science, Health, Geography, History, Cars plus a couple of other topics. Register on the Beavers Website to secure your table or let me know below ☀️ See you there 🥳🎉 **Organisation stuff** \- Teams of six per table are welcome\. \- Entry price is €1 per person and there are six people per table\. \- Winning team takes the on night pot of takings \- A round of shots for the Winning team \- \.\.\. and a Polaroid taken of the winning team to be proudly displayed on the wall of fame\! Use this link to register on the Beavers Pub website so we know how much IPA ales, soft drinks and food to keep in the Beaver family kitchen. If you can also confirm over this event, it would help too for numbers co ordination for example 1 person + 5 guests and a team name - please also confirm the word "quiz" in your name! 😀👌 Follow us on Instagram too! [https://www.instagram.com/beaverspub1050](https://www.instagram.com/beaverspub1050?utm_source=ig_web_button_share_sheet&igsh=ZDNlZDc0MzIxNw==) Much love and thanks from Daddy Beaver 🦫. [https://beaverspub.at/book-a-table/](https://beaverspub.at/book-a-table/)

**Join us** for free writing sessions with tea and treats and find the accountability, focus, and structure you need to achieve your goals. Be it a book, blog, script, essay, dissertation, resume, melody, poem or just plain work stuff, you are invited to write it with us. No one will see what you've written or give you unsolicited advice. Instead of just thinking about writing, come and get some real writing done! **SCHEDULE:** 18:00 - Quick Session intros. 18:15- Timer starts 20:00 - end/chat/ take off/. Vienna Mosaik closes at 20:15 OPTIONAL SOCIALIZING before and after the session. BEING LATE IS OKAY: just show up and join us! **What Should I Bring?** -Whatever you need to be able to write! -Bring earbuds/earplugs if you want to block out music or sounds. **Other Important Details:** TRAVEL / PARKING: 65A to Laxenburger Straße/Troststraße; O tram or 11 stop Arthaberplatz; Reumannplatz U-Bahn; Parking is Kurzparkzone. **INTERNET:** Yes **FOOD/DRINKS:** Light snacks, tea and coffee available. Donations optional **Open seating:** writing room is separate next to the entrance room. **Other info:** Click on the meetup you want to attend and then click on the red button "Teilnehmen" or "Attend". Otherwise, you can attend the writing session anyway. :) *Happy writing and I look forward to seeing you at Vienna Mosaik!* Find Us on Google Maps: [Vienna Mosaik](https://maps.app.goo.gl/1FsrkiXaw6D7y6pK7?g_st=com.google.maps.preview.copy)

Welcome to the Wednesday Night Shift. We are taking over the legendary Bettlalm, to bring you the ultimate mid-week escape! 🥳 Great music, cold drinks and an amazing crowd that's the unique Austrian alpine party vibe, here in the heart of Vienna! 🪩 You want to shake off the workday on the dancefloor or just clink glasses with great people, this is your new Wednesday’s night! 🎉

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 10:25 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!

This event is part of our weekly event series \-\-\- 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 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 you need to bring your own 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 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**

Hi Running fellows, Whether you’re a walker, new to running, a semi-pro, a marathonist or a sprint star - if you want to start your weekend in an active way and enjoy the outdoors in lovely surroundings with a fun, international and multilingual group of people, you are welcome to join us! Every Saturday at 9:30 am, we meet, we run, in the magnificent Schönbrunn park, and then we go for breakfast. Want to discuss politics or the best recipes for banana pancakes? Not a problem. Not feeling social? Tune out with your earbuds - we can talk over breakfast. We are casual. You can be too. What to expect: Start by meeting Adrian, Ali, Liz, Paul and Sonia on-time at 9:30am outside the Schönbrunn U-Bahn stop (exit Grünbergstraße). (Coordinates: 48.1858130, 16.3200640) From there, we walk to the side park entrance where the “running” part begins. The important thing is that you run at your own pace. Typically, small groups of people will run at the same pace as you, so you never have to walk/run alone :) We finish one hour later, at about 10:40am, reconvening just inside the Hietzinger Tor exit. (Coordinates: 48.1858825, 16.3032647). From there, we’re off to breakfast! Breakfast Details: Anker bakery opposite the U4 Hietzing station and depending on the weather, grab something for a picnic in Schönbrunn park, or hang out in the bakery. If you missed us earlier, you can always go there around 10:45. We are a fun group of runners who don’t take things too seriously. We meet, chat, RUN, stretch, chat, EAT and we hang out over a beer every now and then. It's that easy. Please join us for breakfast after the run! The more the merrier. Typically we are 10-30 people, as not everyone who comes signs up on meetup. Important disclaimer: Please only run as much as you feel you can, considering the temperature, weather conditions, your own fitness etc... run and walk at your own pace as the organizers do not assume any liability for any injuries or health issues. Sonia, Adrian, Ali, Paul and Liz

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!

Come write with us at Cafe Pierre every Sunday at 18:00-20:00! A message from Shut Up & Write: "Shut Up & Write hosts free, in-person and online writing events for writers all over the world. Our goal is to ensure that every writer—regardless of genre or skill level—has access to the resources, community, and accountability that they need to be successful in their personal writing goals." And what this looks like at our event: We chat and give short introductions to what we are working on at 18:00, then start writing at 18:15. Though we try to start on dot, being late isn't a problem—just find a spot and get to work! We write until 20:00 and then discuss how our writing went. From fiction to non-fiction, academic papers to poetry, applications to work-related writing—anything goes! Nothing is needed except for you to bring whatever is need to get stuff done, i.e. laptop, headphones, pen and paper, and so on. Optional socialising may happen before 18:00 and after 20:00, or you may choose to use this time to get some more done! Please do order something from the café (drink, meal, dessert, etc.) so as to keep us in their good graces!

Hey there!

Flow with me through a nice Vinyasa Flow for 60 Minutes. Background music included.

15€
+2€ for a mat.
Level: sporty beginner to intermediate.

Want to know more about me? visit [www.explore-pure-yoga.com](http://www.explore-pure-yoga.com/) 🙂

Looking forward to see you on the mat 🧘🏻
Anna

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**We'll have two meetings covering AI - this second one is for Positron** We will review which AI features are linked in for Positron, and how to use them. **Location:** The meetup will be at SPARK's ([https://annarborusa.org/](https://annarborusa.org/)) Ann Arbor site: [SPARK HQ (Ann Arbor)](https://urldefense.com/v3/__https://www.google.com/maps/place/Ann*Arbor*SPARK*Headquarters/@42.2792515,-83.7447708,17z/data=!3m1!4b1!4m5!3m4!1s0x883cae3effe193cb:0x5296a53db2a282bf!8m2!3d42.2792515!4d-83.7447708?hl=en-US__;Kysr!!HXCxUKc!3EEdBNXRJKknP6LCGkZetSuEsdtChFojQnOVitFUC5C0fyilqXEbiMstT9ajBR3Cw-55qoFkrElCjQvjMdTxUw$). There is on street parking, and parking at local structures. **This will be a hybrid meeting - the Zoom session starts at 6:30 PM.** **Time:** The doors will be open at 6:00, with pizza and beverages provided. We will have a meet-and-greet-and-pizza session, and then at 6:30 we'll have a presentation. **Zoom information:** https://us06web.zoom.us/j/86862937929?pwd=woa95D1r85dobjqxQ07NfBLNdTa9hc.1 Passcode: 705462 **If you can't get in, please call me at: 734 223-3307** **Document source:**

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

**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