Programming in R

**Finally!** The first **PostgreSQL Meetup in Vienna** is coming up! Exciting talks and networking opportunities around PostgreSQL are waiting for you. Meet fellow Vienna-based and international PostgreSQL enthusiasts at this meetup and take the opportunity to connect locally and exchange ideas. **When:** March 18, 2026 — 6:30 PM to 10:00 PM **Where:** [Dotbite](https://dotbite.at/) GmbH, Barichgasse 38/1/6, 1030 Vienna **Preliminary Agenda:** 6:30–7:00 PM — Doors open & registration, networking 7:00–7:15 PM — Welcome & opening 7:15–7:30 PM — Sponsor introduction: Dotbite 7:30–8:05 PM — Stop Guessing, Start Indexing: A Developer’s Guide to Database Indexes (by Rajeet Kumar) 8:05–8:15 PM — Break 8:15–8:50 PM — Is your PostgreSQL truly Cloud(native)? (by Jan Karremans) 8:50–9:00 PM — Break 9:00–9:20 PM — pgcov: Bringing Real Test Coverage to PostgreSQL Code (by Pavlo Golub) 9:20–9:30 PM — Closing 9:30–10:00 PM — Networking & snacks \*\*\*\*\* Session Details \*\*\*\*\* **Speaker 1:** Rajeet Kumar **Title:** Stop Guessing, Start Indexing: A Developer’s Guide to Database Indexes A lot of developers know that indexes make queries faster, but many don’t know why, when an index will actually be used, or why some queries ignore them completely. In this talk, we open that black box. We build a mental model of the B-Tree, the structure used by most databases for their default indexes, and look at its internal layout. Using that model, we’ll explore where B-Tree indexes shine, where they fail, the costs associated with them, and how selectivity affects whether an index is used. Finally, we’ll briefly look at practical techniques such as covering indexes and functional indexes. **Speaker 2:** Jan Karremans **Title:** Is your PostgreSQL truly Cloud(native)? As organizations modernize their platforms with containers, Kubernetes, CI/CD pipelines, and microservices, databases are often the last piece to truly transform. Simply lifting and shifting PostgreSQL to a cloud VM does not automatically make it cloud-native. So what does? We’ll cut through the buzzword bingo and examine what they mean for PostgreSQL in real-world environments. Drawing from decades of database experience and years running PostgreSQL in Kubernetes, this session highlights how cloud-native principles such as automation, resilience, observability, and rapid redeployment reshape the way developers and DBAs collaborate. Whether you are a developer, DBA, architect, or decision-maker, this talk will help you assess where you stand today and what it takes to make PostgreSQL a true enabler of speed and innovation in modern cloud environments. **Speaker 3:** Pavlo Golub **Title:** Bringing Real Test Coverage to PostgreSQL Code **Abstract:** https://posetteconf.com/2026/talks/pgcov-bringing-real-test-coverage-to-postgresql-code/ \*\*\*\*\* Snacks and drinks will be provided. A big thank you to [Dotbite](https://dotbite.at/), our main sponsor, for hosting us and providing food and drinks! 🚨 **Attention: Limited spots available!** 🚨

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/)

First session for **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

This is a Football Training +Match session - preparation for full pitch football (skill & position improvements). The session is managed by Toni Geormaneanu - license UEFA B - coach of Meetup United - Uberliga B ( KM plus Reserves) If you would like to join, get in touch with our club responsible - Sorin Brici (+43 676 4276984)

**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)

***MEMBERS ONLY*** Join us for three hours of badminton! This session is open for members of the Sportunion Vienna Badminton Community. We play in a sports hall in Vienna’s 11th district, easily reachable by public transport (U3 Enkplatz / S-Bahn Wien Haidestraße). For further information about the exact location or attendance, please reach out to the host. This event runs under a separate membership format, and participation is deducted from your existing subscription balance. Please bring your own racket, sportswear, indoor shoes, and a water bottle. Feather shuttles are provided, and you can usually borrow a spare racket from another player if needed. If you can’t attend, please cancel at least 24 hours in advance—late cancellations may incur the event fee.

We’re bringing **Mobileheads** to the Sentry office in Vienna for another evening of deep technical talks, honest engineering discussions, and great company. This time, we’re excited to host **two fantastic speakers from the Sentry team**: ️ **Philip Niedertscheider** ️ **Stefan Pölz** ### What’s this edition about? One session will dive into building **safer, more robust APIs in Swift** — the kind that makes observability feel less fragile and more intentional. The second talk will explore modern **cross-platform observability** for **.NET** applications, in particular the new capabilities of **.NET MAUI 10** If you care about: * Type safety * Clean architecture * Developer experience * Building reliable mobile apps …then this one’s for you. **Date:** March 18 **Location:** Sentry, Vienna As always: great people, strong opinions, and drinks. Join us for an evening of quality content and community vibes. RSVP and bring your questions!

Hi all, It's time for another freelancer's meetup! Freelancing in Vienna is the (semi) regular meetup for independent professionals in the city. Two talks, free pizza and drinks, and time to connect with people who work the same way you do. Agenda * 18:30 Doors open * 19:00 Welcome * 19:10 **Build in Public: A Freelancer's Playbook for Launching an AI Product in 4 Weeks** by Clemens Helm * 19:40 Pizza & drinks * 20:10 **Consistency and Discipline in Freelancing: Turning Revenue Goals into Daily Targets** by Alexander Schörghuber * 20:40 Networking * \~21:30 Wrap up **Talks** **Build in Public: A Freelancer's Playbook for Launching an AI Product in 4 Weeks** by **[Clemens Helm](https://www.linkedin.com/in/clemenshelm/)** Most freelancers sell hours. I wanted to build something of my own. So I started building Pinchy (heypinchy.com) — a self-hosted AI agent platform — completely in public. Daily LinkedIn posts, a dev blog, open source on GitHub, guerilla marketing. The full stack, not just code. The surprising part: the product isn't even the point. The process is the portfolio. In this talk I'll share: * Why "Build in Public" is a powerful strategy for freelancers who want to shift into a new field (in my case: AI) * How AI tools helped me ship fast — the product, the website, the branding, the docs, even the logo were all built with AI assistance * What actually worked for visibility (and what flopped) — with real numbers from LinkedIn, GitHub, and website analytics * How documenting your work publicly builds more credibility than any CV or portfolio page ever could Whether you're thinking about launching your own product, pivoting into AI, or just want to stand out as a freelancer — this is 20 years of freelancing distilled into 4 weeks of building out loud. **Consistency and Discipline in Freelancing: Turning Revenue Goals into Daily Targets** by **[Alexander Schörghuber](https://alex-schoerg.at/)** Freelancing promises freedom: no boss, no fixed hours, no one telling you when to work. But that freedom comes with a hidden challenge: there is no built-in structure that ensures you're actually working enough to reach your financial goals. Most freelancers track time. But many don't actually know what they should be aiming for, or whether they're on track to reach their revenue goals. In this talk I'll share how thinking in daily billable targets instead of vague productivity can bring structure and predictability back into freelancing. Topics include: * Why freelancing often oscillates between overworking and falling behind financially * How translating revenue goals into daily billable targets changes decision making * A practical system (controli.at) that connects time tracking with revenue goals This talk is for freelancers who want to keep the freedom of freelancing, while adding the discipline and predictability of a structured work life. \-\-\-\-\-\-\-\-\- **Want to give a talk at the next meetup?** We're looking for speakers. 20–30 minutes on anything relevant to working independently. Send a message to me (Aaron) here on meetup. \-\-\- We're sponsored for the space and snacks again by https://www.lean-coders.at/, a wonderful freelancer focused "agency" in Vienna. They are currently offering coworking desks for interested freelancers. Their team of professional devs and PMs would also love to hear about your next software project. If you know of anyone looking for a great software team, they even have an affiliate program for referrals https://lean-coders.at/affiliate/ See you soon!!

Thank you for visiting this event page! * Are you an advanced badminton player? If yes - WELCOME! * The earlier you sign up, the bigger your chance to reserve a place - once 9 other players have signed up already, you move to the waiting list. * Once the waiting list has 3 or more members, I will try to book an additional court, but no guarantees. I need to close the registration 24h before the event as I will then have to decide whether to cancel any court due to a shortage of players. You can still contact me if you want to play though. The fee per player will be €10.00 for 2 hours as the cost of both shuttles and court bookings have increased. But this should now cover also shuttles used during play. Please be on time as a curtesy to the other players. In addition, if you are on the players' list and don't come (i.e. no show), you will be automatically excluded from this group.

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!

## The Portrait League – Paid Studio Sessions for Serious Hobby Photographers This is a structured portrait community — not a casual meetup. The Portrait League is a recurring studio (location) gathering for photographers who want to improve their portrait and headshot work in a focused, constructive environment. Each session will focus on a specific studio concept: – Classic 1-light headshots – Dramatic low-key portraits – High-key commercial looks – Editorial portrait setups – Creative color lighting Model included. We don’t rush for quantity. We work for quality. The goal is simple: Refine technique. Improve consistency. Develop a recognizable portrait style. This is for photographers who: • Want structured growth • Value critique over ego • Take their craft seriously • Prefer collaboration over chaos Spots are limited to maintain quality and productive energy. Investment Today: €45 Duration: approx. 2–3 hours If you want random shooting, this isn’t it. If you want to level up your portrait game, join the league. ***

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

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**

Du wirst nervös, sobald Du jemand attraktiv findest? Dating ist für Dich inzwischen " wie Arbeit" geworden? Du würdest gerne mit Menschen, die Dir gefallen in Kontakt treten, aber Du weisst nicht wie? Du hörst Dich immer wieder " Ja" sagen, obwohl Du eigentlich " Nein" sagen möchtest? Mit Hilfe von Improvisationstheater lernst Du Eigenschaften zu verkörpern, die Du gerne hättest & Szenarien zu erproben, die Dich herausfordern. Damit Begegnungen in Zukunft schön, innig, tief & leicht sein können...oder einfach so, wie Du es Dir wünscht ( : Mehr Info & Anmeldung noch für kurze Zeit vergünstigt auf https://www.institut-fuer-liebe-und-mitgefuehl.org/workshops/ Keine Vorkenntnisse erforderlich. Lies jetzt den Erfahrungsbericht einer Journalistin des Kuriers, die im Herbst 2024 an einem meiner Workshops teilgenommen hat: [https://kurier.at/wissen/gesundheit/improtheater-buehne-psychologie-veraenderung/403000383](https://kurier.at/wissen/gesundheit/improtheater-buehne-psychologie-veraenderung/403000383) Durch den Tag begleite ich, Corinna Lenneis. Ich bin Schauspielerin, Regisseurin, Lebensberaterin in Ausbildung unter Supervision, Lehrerin für achtsames Selbstmitgefühl & Schauspielcoach und leite Workshops und Kurse auf der ganzen Welt. Ich freue mich sehr lustige, spannende und weiterführende Tage mit Dir! Mehr Info zu mir und dem Event auf https://www.institut-fuer-liebe-und-mitgefuehl.org/workshops/

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

**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: Type Annotations with John Cassidy 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'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:**

**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 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA

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)

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 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 topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

OpenClaw, NemoClaw, personal assistants, 24/7 agents. What does it all mean? How does it all work and what should we know about it? Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)