Quality Assurance

Open Source Frühstück: enjoy food and deep technical talks Open your day with a solid breakfast and practical discussions on **Apache Kafka**, **ClickHouse**, **PostgreSQL** and much more. Enjoy a session designed for data engineers, architects and technical decisions-makers like you, who want to address the challenges they face in data-infrastructure. No high-level pitches but straight into practical discussions on how to build scalable, efficient open sourced-powered data platforms. What's on the menu (other than a delicious breakfast): * **Deep dives** into new features and upcoming technical roadmaps, including **Aiven Inkless**, **Kafka,** **Apache Iceberg**, **OpenSearch**, **PostgreSQL**, and **ClickHouse** * **Real case studies** demonstrating how top engineering teams are solving core data problems with these stacks, including search, observability, and analytics use cases powered by OpenSearch. * **Optimization techniques** for performance, cost-efficiency, and operational simplicity. So what are you waiting for? Secure your seat now!

This late-evening class is a deeply restorative experience designed to help participants transition from the stimulation of the day into profound rest. The session blends gentle grounding practices, guided yoga Nidra or visualization journeys, and immersive sound healing using Tibetan bowls, voice, and subtle resonance. The intention is to calm the nervous system, release mental tension, and support better sleep and emotional integration.

**Rust Berlin on location 🏳️‍🌈** is a new, informal in-person Rust meetup group in Berlin. We are a interactive meetup format interested in mob coding, deep diving and problem solving together. We build toy projects, share experiences, discuss technology and learn new cool stuff. And you are welcome to join! No matter if you are writing Rust production code every day, if you already contribute to Open Source projects or want to start doing so, if you use Rust in hobby projects or if you are just curious what the hype and buzz is all about, you are very welcome! To coordinate and plan activities, please join our **[Rust Berlin on location 🏳️‍🌈](https://signal.group/#CjQKIApfEgb36v82nhIb7m6zLCQjEtSEZubR7UvywTcWZXxdEhBWxhMWNCKekvtCYX7iDRRm)**[ Signal group](https://signal.group/#CjQKIApfEgb36v82nhIb7m6zLCQjEtSEZubR7UvywTcWZXxdEhBWxhMWNCKekvtCYX7iDRRm)! **Planned programme** Being an informal meetup, we are open to anything between just meet and talk, explore nerd snipes and rabbit holes, mob code together, plan and build fun projects, tinker with electronics, and presentations with Q&A. This time, our main topic is going to be dependency-tree security. Jan-Erik will share insights into how security is upheld at Mozilla — in the Firefox project — in the context of third party open source library packages and repeated attempts at attacks through malicious crates. If someone brings other cool stuff, questions or problems, then let us dedicate the second half of the meetup time to that! Anyone is invited to bring their projects and questions, show something, ask something, or explore a topic together. The best conversations and deepest rabbit holes can emerge out of seemingly nowhere. **Projected upcoming meetups** We schedule regular meetups on Thursday evening every four weeks, using the slot between the Berlin Rust Hack and Learn online meetup (every two weeks), and the Rust Nuremberg online meetup (every four weeks). 22 January 2026 is our tenth meeting. Our next projected meetings are going to occur on the following dates: * 19 Feb 2026 * 19 Mar 2026 * 16 Apr 2026 * 14 May 2026 * 11 Jun 2026 * 9 Jul 2026 **Location** Our meetup location is the new shared office community space of Ferrous Systems, Slint and KDAB in Berlin Mitte, for up to 25 people. We are expecting to use this space as our default location for the time being, with the IN-Berlin e.V. community space in Moabit as backup. Regardless, as our group might eventually outgrow the locations' size limit, we are low-key looking for bigger locations. If you know a fitting location, then please let us know in our Signal group! Another workable way might be to split the meetup into smaller, interest-specific sub-groups instead. As the no-show rate on Meetup.com is rather high, consider showing up even if you are on the waiting list. We can't promise that there is any space left, but usually there is. So give it a shot! **Accessibility** The location has an elevator and a wheelchair accessible bathroom. Please note that the bathroom is two floors down from the meetup space. On our quest for a bigger location, we are going to pay special attention to accessibility. **Community** We aim to create a safe place for everyone and adhere to the [Berlin Code of Conduct](https://berlincodeofconduct.org/). Inclusivity is very important to us. If you are curious about Rust, but unsure if you are welcome to join: Yes, yes you are. Please come to the meetup! If you have special needs, please get in contact, we will try to accommodate you as best we can. We are part of [https://berline.rs/](https://berline.rs/) and like to hang out in the Berlin Rust Hack and Learn online meetup's [Matrix channel](https://matrix.to/#/!xycQxSjSAvEezkyztA:chat.berline.rs). You are very welcome to join!

Bachata (the dance of our generation) is a social couple dance like Salsa - no choreography. The community in Berlin is active daily - you will meet a lot of open-minded people and make new friends quickly! Every Thursday we have Bachata dance classes in Berlin - we are usually a group of around 20 people (95% beginners): 🕖 19:00 - class: Bachata Technique for Beginners+ (0-1+ years experience) • No partner needed (we switch). • You can start from zero in any of these classes! 📍 Adress: Klosterstraße 44 ([Google Maps Link](https://maps.app.goo.gl/5VGEqaVSy9xBCoHv9)) - near S+U Alexanderplatz • Entry: Entrance A (next to U-Bahn), code: 5928# - 3rd floor (300), then black door. • Price: 12€ per class. ✅ Dance teacher contact: [WhatsApp-group](https://chat.whatsapp.com/IWKPsid0cBDAUHCWKZNL2B) / [Instagram](https://instagram.com/mahir.bachata.berlin) 🇩🇪: Bachata (der Tanz unserer Generation) ist ein sozialer Paartanz wie Salsa - keine Choreographie. Die Bachata-Szene in Berlin ist groß und täglich aktiv - du wirst schnell viele offene Leute kennenlernen und neue Freundschaften schließen! Jeden Donnerstag findet dieser Bachata Tanzkurs statt - wir sind meistens eine Gruppe von 20 Leuten (95% Anfänger): 🕖 19:00 Uhr - Kurs: Bachata Technik für Anfänger+ (0-1+ Jahre Erfahrung) • Kein Partner nötig (wir wechseln). • Du kannst in diesen Kursen jederzeit von null starten! 📍 Adresse: Klosterstraße 44 ([Google Maps Link](https://maps.app.goo.gl/5VGEqaVSy9xBCoHv9)) - Nähe S+U Alexanderplatz • Zugang: Eingang A (neben U-Bahn), Code: 5928# - 3. Etage (300), dann schwarze Tür. • Preis: 12€ je Kurs. ✅ Tanzlehrer Kontakt: [WhatsApp-Gruppe](https://chat.whatsapp.com/IWKPsid0cBDAUHCWKZNL2B) / [Instagram](https://instagram.com/mahir.bachata.berlin) Schreib uns gerne eine Nachricht, wenn du offene Fragen hast! Wir freuen uns auf dich ❤

In our January meetup [Alexander Shabalin](https://github.com/projedi) will talk about the LLVM-based backend in Kotlin and its tracing garbage collector. Alexander is a software engineer at JetBrains who works on Kotlin/Native. Kotlin/Native is one of the backends of the Kotlin compiler. It uses LLVM for code generation and it features a tracing garbage collector. The GC integration is custom and currently doesn't rely on LLVM GC extensions. In this talk we'll take a look at some Kotlin code, the LLVM code generated for it and the reasons behind it. Small snacks and drinks will be available. There is always space for outside topics and discussions. If you have specific questions, please bring them. Looking forward to meeting everyone again!

...learn to dance Latin rhythms and enjoy some happy Latin music - good vibez only. ‍ ## DNA. Art House presents ''REGGAETON'' ‍ ***Andrea Medina*** is a berlin-based dancer and instructs this class. fell in love with dancing at an early age of 9 years old. Since she likes to surround her life with art not only as a hobby but as a way of living, she studied musical language and performing arts. Combining her knowledge with the experience of various dance styles (such as ballet, contemporary, HipHop, afro, popping, bachata, salsa, twerk, etc.): ‍ *''I ensure an exhilarating and enjoyable training session that connects You with Your body and inner strength, all set to the infectious rhythms."* ‍ In each Workshop we will explore different exercises as well as choreographies that will be adapted to the level of each person. ‍ > Join Us for a class full of rhythm, passion & positive energy. ‍ ‍ ##### WHEN: Every Thursday 8 - 9.15 pm (doors: 8 pm, start: 8.15 pm) ‍ ##### DURATION: 1 h ‍ ##### WHERE: [DNA. ART HOUSE](https://maps.app.goo.gl/4XrC8gTPtdDGb3oB6) Wrangelstraße 25 10997 Berlin ‍ ##### WHAT DO YOU NEED: Good Vibez. ‍ ##### LEVEL: Open Level. ##### ***‍***INCLUDED IN PRICE: \- Dance Class \- Water ‍ **COSTS:** Free for DNA. Members / Regular 15 e [> Become a DNA. Member](https://www.dna-artclub.com/dna-member) available: Online Tickets / Box Office ‍ ‍ ‍ ‍ [LIMITED SPOTS. SAVE YOUR TICKET NOW :)](http://dance-classes.grwebsite.eu/) ‍ ‍ ‍ See Us Soon. Love. [Andrea Medina](https://www.instagram.com/andreamedinadance/) & DNA. **_____________________________** **\*Members of Dair Night Art e.V. and Subscribers of DNA. Art GbR.** **\*\*By entering the DNA. ART HOUSE, You agree to comply with the [Hausordnung of Dair Night Art e.V.](https://dairnight.com/hausordnung) and [Geschäftsordnung of Dair Night Art e.V.](https://dairnight.com/geschaftsordnung) Please ensure You review these documents thoroughly in advance.** **\*\*\*NOTE: By purchasing a ticket for this event, you grant us permission to integrate your contact data into our Database. This allows us to securely save and utilize your contact information to keep you updated about event details, relevant communications and future events. Your privacy and data security are important to us, and we assure you that your information will be handled with the utmost care and in accordance with our privacy policy = see [https://www.dna-artclub.com/privacy-policy.](https://www.dna-artclub.com/privacy-policy.)** **Thank You for Your understanding and support.**

Every wine has a story. Tonight, you create yours. **Paint the Label** is the first edition of the **Cozy Winter Sessions**, an intimate winter gathering where creativity becomes a way to connect with others. A label is more than an image. It’s a story, an identity, a first impression. It speaks before words do, on a bottle and sometimes in life. You’ll be welcomed with a glass of wine, thoughtfully selected and introduced by our Sommelier, with the chance to choose your preferred variety with non-alcoholic options and all materials provided. It’s a relaxed and open invitation to paint, enjoy a glass of wine and discover new stories among new faces. As the evening unfolds, each label becomes a conversation. The space opens to share what inspired each creation and the story behind it. At the end of the evening, you’ll take your label with you, a small piece of the night that can later live on a bottle or simply remain as a memory. A warm winter evening shaped by expression, conversation and presence. Additional drinks and tapas: available for purchase at the venue (including non-alcoholic options).

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right

SQUASH SWEAT + TEARS WOMEN / MEN ACTIVITIES Players meetup at the club, play squash (with others around their level), train (if they wish), watch & learn from better players, make new friends, have a few drinks, etc. Please be aware, we must take care to use our allotted courts. We arrange for these based on the sign-up lists. If many people sign up, but do not appear then the courts go unused and those on the waiting list miss a chance to play. In order to ensure this if a party on the attending list has not appeared, their future reservations will be moved to the waiting list. In addition, reservations will be allowed up to fourteen days in advance only. PRICE: €9 Kindly pay at the front-desk reception "before" you play on a squash court. Free for club members. COURTS 2 courts (7 + 8) @ 15:00 to 15:45 4 courts (2 + 3 + 7 + 8) @ 15:45 to 18:00 NEW JOINERS / TOTAL BEGINNERS We, the organizers — Oliva or James— are always available to teach you the basics and improve your skills to learn the rules and get introduced to players. Ask for "demo racket" at front-desk if you don't have one. PARTICIPANT RULES 1. RSVP to participate in meetup and play. 2. Cancel your RSVP if you cannot attend. Be courteous to others who would like to attend. 3. Pay fee at club front-desk before playing. AIRPORT SQUASH & FITNESS CLUB WEBSITE http://www.airportsquash.de Become a club member for 36 EUR per month and play UNLIMITED!

Join us for an upcoming in-person Lean Coffee meetup. Lean Coffee is a lightly-structured meeting format where the attendees create the agenda. Bring your management challenges; whether you're managing people, products, processes or beyond, and solve them together with peers from a diverse set of backgrounds. This event is great for anybody trying to create better ways of working and wants to share with + learn from others trying to do the same.

SQUASH SWEAT + TEARS WOMEN / MEN ACTIVITIES Players meetup at the club, play squash (with others around any level), train (if they wish), watch & learn from better players, make new friends, have a few drinks. Please be aware, we must take care to use our allotted courts. We arrange for these based on the sign-up lists. If many people sign up, but do not appear then the courts go unused and those on the waiting list miss a chance to play. In order to ensure this if a party on the attending list has not appeared, their future reservations will be moved to the waiting list. In addition, reservations will be allowed up to fourteen days in advance only. PRICE: €12 Kindly pay at the front-desk reception "before" you play on a squash court. Free for club members. COURTS 3 courts (1 + 2 + 3) @ 18:00 to 21:00 NEW JOINERS / TOTAL BEGINNERS We, the organizers — Oliva or James— are always available to teach you the basics and improve your skills to learn the rules and get introduced to players. Ask for "demo racket" at front-desk if you don't have one. PARTICIPANT RULES 1. RSVP to participate in meetup and play. MAX is 12 players. 2. Cancel your RSVP if you cannot attend. Be courteous to others who would like to attend. 3. Pay fee at club front-desk before playing. Thanks for your understanding and support AIRPORT SQUASH & FITNESS CLUB WEBSITE http://www.airportsquash.de Become a club member for 36 EUR per month and play UNLIMITED! SQUASH CLUB INTERIOR as a [3d view](https://www.keepeyeonball.com/Tour/d77705fd-24dd-44a1-9f12-15bf3648036b/4K?sc=7&y=110&p=-1&tz=100&r=-1.13;0.18&l=0.00;0.00&mz=-8.70&d=0&m=1) courtesy oc keepeyeonball.

Ciao a tutti! For our event we would like to meet you at 17:00 and have a beer all together, or other drinks. The goal of our first meeting is to get to know eachother and practice Italian and German. Please don’t be afraid that your language skills might not be sufficiently good or that you are a beginner. We understand that learning languages is a difficult and long journey. We don’t tolerate discrimination. We don't tolerate any aggressive or weird attitude. This has to be a Place of Comfort zone for everyone :) Please be respectful and kind with the others! PS: you can find us on the pool table area usually, if not just ask to the bar area for the reservation on the name "Claudio" A presto, bis bald Claudio Ich hoffe dass wir bald uns sehen!

**Join us for a swim at Stadtbad Tiergarten Pool (near Hauptbahnhof)!** Hey everyone, We are doing a casual non-professional swim. It's an indoor heated (+26°C) pool, and I'd love for you to join us! We'll be gathering for a casual chill 30-minute swim. No need to race or compete, just enjoy the water and calm after completing the swim. Afterwards we go to a nearby café for coffees and chat, but no pressure to stick around - totally optional! **Bring** * swimsuit * towel * 1 Euro coin (for a locker) * ticket (5.50€, buy online or on site) **Where** In the entrance hall inside the pool.

Hi, I am Zoe, a software engineer by profession. I have been running this support group since a year 😇 What to expect in the circle: \- The first 45 minutes we can spend to get coffee and settle down \- On a volunteer basis\, each of the attendee will then get some time to share things that they are dealing with\, perhaps for 2\-5 minutes \- You can skip sharing even if you are in a circle\, there's no force \(and there will never be\) on you to share\, staying silent and listening is completely ok \- Attendees can recommend books or reading material if they like ///// ….. /////// Code of conduct: 📓 Please arrive on time. There are no requirements or expectations of any kind. Speaking is encouraged but not compulsory. All issues are legitimate and deserve attention. Everyone is entitled to share their experience, including yourself. Speak honestly and respectfully. Try not to downplay or invalid other people's feelings, or your own. Pay attention to physical and emotional boundaries. Avoid raising your voice, interrupting or talking over anyone else. Be aware of how much you’re participating so everyone gets a chance to speak. Refrain from giving unsolicited advice; what works for you may not for others. Respect privacy during this dialogue and beyond. What is said during the Meetup is not meant to be repeated outside. Notify the facilitator if you feel distressed or upset, or if you find someone's behavior inappropriate. Feel free to step out if you need to. Last but not least, have respect for everyone’s religious / cultural / nationality / race / gender / sexual / diverse backgrounds. ☀️

**Hello Columbus!** **The community is buzzing and growing well.** **We are thrilled to bring our third BrowserStack QA Meetup on March 12th!** We are creating a space for deeper insights, meaningful connections, and a vibe you won't want to miss. **What to expect:** * **Connect:** Network with Columbus’ top engineering and QA minds. * **Learn:** Real-world tactics and trends you can use immediately. * **Enjoy:** Food, drinks, and great community spirit. **Agenda** * **Details coming soon!** We are currently curating a special lineup of speakers and sessions. Watch this space for the full schedule. **RSVP Essential:** Space is limited and we want to ensure a great experience for everyone. **RSVP now to secure your spot!** 📍 **Venue:** Leading EDJE, 6515 Longshore Loop, Suite 300, Dublin, OH 43017 📍 **Free Parking:** 6725 Longshore Street, Dublin, OH 43017 📅 **Date & Time:** March 12, 6:00 PM **Stay Connected!** Want to continue the conversation beyond the meetup? Join our **BrowserStack Discord Server** to get updates, connect with fellow QA professionals, and be part of an ongoing discussion. **Don’t miss out—click below to join!** 🔗 [\[](https://discord.gg/6SdCyWTNyW)**[Join the BrowserStack Discord Server](https://discord.gg/6SdCyWTNyW)**[\]](https://discord.gg/6SdCyWTNyW) **A Few Notes:** ✅ This is an **in-person event** ✅ **RSVP does not guarantee a seat** – A confirmation email will be sent one day before the event. **TALK ABSTRACT:** Coming soon!

Let’s meetup at Cafe Istanbul for the last day of Restaurant Week. You get three courses for $30. This is the menu: https://614now.com/rw-menu/cafeistanbul-easton

Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel. Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger. Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life. Please visit our Official Church Website (http://raysoflightchurch.com) for more information.

## Details \#\# Learn Infrastructure\-as\-Code \(the FUN Way\) — Through Minecraft 🎮☁️ **Joint Meetup: DevOps Columbus - Azure CBUS - Columbus HashiCorp User Group** What if learning Terraform and Infrastructure-as-Code didn’t feel like a whitepaper… but more like a game? Join us for a joint DevOps Columbus, Azure CBUS and Columbus HashiCorp User Group meetup where **Mark Tinderholt** \(Principal Architect\, Microsoft Azure \| HashiCorp Ambassador \| “The Azure Terraformer”\) shows how **Minecraft** can be used as a surprisingly powerful way to understand real-world Infrastructure-as-Code concepts. In this session, Mark will demonstrate how Terraform and Azure can be used to provision, configure, and manage Minecraft servers—while teaching the same patterns you’d use for production cloud infrastructure. \#\#\# What we’ll cover * Infrastructure-as-Code fundamentals using **Terraform** * Provisioning real infrastructure on **Azure** * Applying **IaC best practices** (immutability, repeatability, versioning) * How playful environments like Minecraft make complex concepts *click* * Why learning through experimentation beats click-ops every time \#\#\# Who should attend * Developers, platform engineers, and cloud engineers * Terraform users (new or experienced) * Anyone curious about Infrastructure-as-Code but tired of boring examples * Minecraft fans who want to see it used in a totally unexpected way No prior Minecraft experience required—just curiosity and a willingness to learn infrastructure the fun way. Come for the blocks, stay for the Terraform. 🧱➡️📐

Come chat about Atlassian tools and best practices at the Upper Arlington Sunny Street Cafe and Breakfast is on Atlassian! Let's get the day started off with breakfast with your ACE Leaders! We're always excited to talk about Atlassian Products, share our knowledge and hand out swag! Come chat with us about new product news and anything you are working on within the Atlassian product stack. This is a great opportunity to come see what we are all about, hear new business news and share with other Atlassian users your questions and experiences. We'd love to see new and old friends come out to chat and learn about Atlassian! Agenda --- Moderators Kimberly Deal - Columbus Atlassian User Group Leader Kevin Stanley - Columbus Atlassian User Group Leader Greg Sprowls - Columbus Atlassian Community Leader Hosted By Kimberly Deal, Atlassian User Group Leader Kevin Stanley, Chief Everything Greg Sprowls, Agility Lead --- Global Partner Atlassian (http://atlassian.com) Millions of users globally rely on Atlassian products every day for improving software development, project management, collaboration, and code quality. Partner Atlassian --- For over a decade, Atlassian customers have come together to network, share ideas, solve problems, and find new ways to use Atlassian products. Today, more than 15,000 people take part in Atlassian community events in more than 30 countries. --- Complete your event RSVP here: https://ace.atlassian.com/events/details/atlassian-columbus-presents-rise-and-shine-with-atlassian-upper-arlington-23/.

**NEW LOCATION: 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). For this first meeting of the year, we will be reviewing submissions for the [Your Program is Hideous and Obfuscated Challenge (YPHOC). ](https://docs.google.com/document/d/13zbxwElpJqPMuAN4Ele2hUgsqtFKzH3OCTL5NEeiLKQ)Submissions for this challenge are due by January 12th, 2026. The details can be found here: or on our website http://www.cohpy.org See Our [Parking Map](https://docs.google.com/presentation/d/1u2A4fLNlxwLJn0KA_hKc8bnFlFHLvsHBDh-_8wzX_tk/edit?usp=sharing) 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 centralohpython@gmail.com

Ciao a tutt\*! I want to revive this group! Let's meet Monday at 6.30pm at the Upper Arlington Library (Tremont Branch) in Meeting Room A to speak in Italian for 1 hour.