OWASP

Back in August, we explored how Design Thinking can help us uncover and validate the right problems. But even when we agree on what to build, things often go wrong, not because of bad solutions, but because we don’t fully understand what the problem actually means in practice. In this session, we’ll build on that idea and focus on the next step: turning vague ideas into something concrete, shared, and testable. Using Example Mapping - a lightweight technique from Behaviour-Driven Development (BDD) - we’ll work in small groups to: * Break down a feature into rules, examples, and questions * Surface hidden assumptions and edge cases * Align on what the behaviour of a system should actually look like If the previous session was about finding the right problem, this one is about understanding it well enough to build it right. This is a hands-on workshop. Be prepared to participate fully and add to the energy of the room. Looking forward to seeing you there!

**OpenClaw Anonymous Berlin** Informal meetup for people interested in OpenClaw/Clawdbot and AI agents. No talks or presentations. Bring your ideas, questions, experiments, and half-working setups. We’ll compare workflows, share what’s working, what’s breaking, and what we’re trying. Come as you are. Stay as long as you like. Bring your laptop if you feel like it.

Liebe JUG-Mitglieder, wir möchten Euch herzlich zu unserem nächsten Stammtisch, der jeden ersten Dienstag im Monat stattfindet, einladen. Alles weitere kann im unserem Blog unter http://www.jug-berlin-brandenburg.de/ gefunden werden. Viele Grüße Sandra, Jan, Jörg und Oliver

We are back in the c-base! Do you already run NixOS and want to talk to other people or want an introductory session with some NixOS users. Just bring your machine! Usually there are no topics, we just sit in front of our computers, talk about stuff, debug some problems or review some PRs on nixpkgs. There are drinks usually available from the c-base bar. If you can't find us. just ask around or ask in irc (#krebs on hackint)

New Starting Time: 12:00 For space reasons, we are limited to a certain number of attendees, so please update your RSVP if you can't come. If you are new, come and say hello, as we know that suddenly going quiet for 45 minutes and staring at that blank page can be intimidating when it's your first time. We have a lot of long-term regulars who will be happy to help you feel welcome. In between sessions, we have a Telegram chat: https://t.me/joinchat/ERW3pxD5kfELGeWs9SUhjw For more information, visit [https://shutupwrite.com](https://shutupwrite.com/).

Welcome to Terrible Football Berlin!
Do you want to play football but don't want to pay? Are you a bit unfit, a bit old, or a bit Terrible? Want to have a relaxed kick about and a couple of beers after? Then Terrible Football is for you!
Anyone can play: any ability, any age, and any gender. Terrible Football is about miss kicked clearances, sweet half volleys and desperate diving saves. We play in the rain, sun or snow. It's completely free, and always will be. It's open, inclusive and Terrible.
We usually play on Astro (artificial grass) and sometimes on grass, depending on numbers. Bibs, balls, and cones are taken care of! Just bring sporty clothes and a pair of rubber studded football shoes you'll be good to go! You don't need shin pads and we don't allow hard plastic or metal studs.
The exact location of the event is in the Telegram group description (https://t.me/joinchat/OkWQBBcw3b7ptauwrIEfig Still trouble finding us? Send a message in our Telegram group and we'll help you out. You'll also stay up to date with last-minute changes!
See you on the pitch!
... and stay Terrible! \-\-\-\> GUIDELINES FOR THE SESSIONS <\-\-\-
 How the games will work:
 1\. We will have up to 18 players\.
 2\. Please RSVP on Meetup if you want to participate\.
 3\. If you sign up\, please try your best to attend the event to avoid disturbing the format\. If you cannot attend the session\, deregister asap \(Please check below how the waiting list will work\)\. LATEST CANCELLATION is 3 HOURS before the start of the event\.
 4\. Regular no\-shows could be banned from future TF Meetups\.
 5\. We will NOT allow unregistered participants\.
 6\. The organizer group will ban repeat rule breakers\, so play nice\.

In diesem Kurs beschäftigen wir uns mit verschiedenen Texten aus unterschiedlichen Bereichen. Das können u.a. kurze Geschichten, Gedichte, Zeitungsartikel, Kolumnen oder Videos sein. Immer sind es Themen, die uns gefallen, die wir besonders interessant, wichtig oder manchmal auch richtig schlecht finden. Gemeinsam versuchen wir die Position der Autor*in, den Stil und die Argumentationsstruktur zu verstehen. Dazu diskutieren wir über das, was wir verstehen, welche Meinung wir zu dem Thema haben oder welche Fragen offen bleiben.
Gerne könnt ihr uns auch Themenvorschläge mitbringen oder zuschicken.
Der Kurs richtet sich an interessierte Menschen mit einem B2-Niveau (oder so ähnlich), die Lust haben sich weiter mit der deutschen Sprache zu beschäftigen und ihren Wortschatz zu erweitern.
Die Termine sind sporadisch.

Join us for an open and collaborative meetup dedicated to OpenClaw and Nvidia Nemoclaw — the emerging ecosystem for AI‑driven automation and intelligent agent workflows. Whether you're already working with Claw agents, experimenting with the tooling, integrating automations into real systems, or just curious about what’s possible, this meetup is the place to connect. **What this meetup is about** A relaxed, open discussion space for topics such as: * Building and orchestrating Claw agents. * Best practices for running and scaling ClawdBot Integrations, workflows, and experimental setups. * Secure agent execution and sandboxing. * Tools, extensions, and community‑built add‑ons. * Troubleshooting, insights, and real‑world use cases. * Ideas about the future direction of the OpenClaw ecosystem. This is a topic‑open session — everyone is welcome to bring questions, demos, ideas, or challenges they’re working on. No slides or formal agenda required. Bring snacks or drinks if you like — completely optional. We’re excited to meet developers, tinkerers, researchers, and enthusiasts who want to explore the next generation of agent‑based AI automation together.

🎟️ **[Registration is open via the MoT Site](https://www.ministryoftesting.com/chapters/mot-berlin/events/mot-berlin-080426)** 🎟️ Help shape the future of the Ministry of Testing Berlin chapter - together. This is an open, collaborative gathering where your ideas, experiences, and connections define what comes next. **Explore together: Ideas for MoT Berlin 2026 & beyond** No speaker, just a bunch of Berlin quality professionals discussing what's next for the Berlin chapter! 💡 What are the topics you care about? 🧪 Which meetup formats should we try? 🎤 Do you know speakers who should talk at our meetups? 🤝 Can you help with venues / sponsors? **Chit-chat & 99 Second Talks** We'll leave some time at the end of our meetup for you to take the stage! Have something to share about testing, tech, or teamwork? Whether it's a win, a challenge, or a wild idea - you’ve got **99 seconds** and the spotlight. ✅ No slides ✅ No pressure ✅ Just you and a room full of curious, supportive humans 🕰️ Schedule: **5:30 - 6.00 P.M.** Arrive, say hello & check out the menu\* **6:00 - 7.30 P.M.** Explore together: Ideas for MoT Berlin 2026 & beyond **7.30 - 8.00 P.M.** Chit-chat & 99 Second Talks 📍Location: Spreegold Prenzlauer Berg Stargarder Straße 82, 10437 Berlin (near S+U Schönhauser Allee) **\*Important note:** This event is not sponsored! Food and drinks are not included, but can be purchased in the restaurant. 🎟️ **[Registration is open via the MoT Site](https://www.ministryoftesting.com/chapters/mot-berlin/events/mot-berlin-080426)** 🎟️

This is a 4 phase event. You can join at any time. 1.) 12:00 - 12:30 p.m.: Gathering at the meeting spot. 2.) 12:30 - 01:30 p.m: Using public transport together to Gärten der Welt. 3.) 01:30 - 05:00 p.m: Exploring Gärten der Welt. 4.) 06:30 - 09:00 p.m: Dinner at Kan'Koa (optional). This is the 18th cherry blossom festival and 23rd anniversary at Gärten der Welt. **Highlights:** cosplay event, music and dance performances, food stalls and much more! 💡\*\*Please buy the normal ticket (9 €) in advance to avoid the long queue at the main entrance. If you buy the the ticket on the day of the event the price will be raised to 12 €!\*\*💡 **How to buy the correct ticket:** [https://gruen-berlin.ticketfritz.de/en/Shop/Index/tageskarten-gaerten-der-welt-sommer/44086](https://gruen-berlin.ticketfritz.de/en/Shop/Index/tageskarten-gaerten-der-welt-sommer/44086) **More info and full programm here:** [https://www.gaertenderwelt.de/events/veranstaltungen/detail/2026-04-11_1000/kirschbluetenfest-2026/](https://www.gaertenderwelt.de/events/veranstaltungen/detail/2026-04-11_1000/kirschbluetenfest-2026/) **1.) How to the find the FOODFACTORY Cube Berlin (Effe&Gold):** Washingtonpl. 3, 10557 Berlin https://g.page/foodfactorycubeberlin?share Our meeting spot is inside right next to Effe&Gold. Frome there we go to the Gärten der Welt. **2.) Going to Gärten der Welt:** We'll use public transport to get to this place. If you live in the east, you can join us directly in the garden. **3.) Exploring Gärten der Welt:** The Hanami will be held near the Japanese and Korean garden. We will watch some of dance performances such as traditional chinese dragon dance. **4.) How to the find the Kan'Koa restaurant:** Oranienburger Str. 17, 10178 Berlin https://maps.app.goo.gl/DL5ifV3XzDSkJeAq6 This Asian restaurant has a cozy atmosphere which gives the opportunity to have meaningful conversations. They offer a good mix of Japanese and Vietnamese cuisine. I would recommend this to vegetarians as well as vegans. *Who is this meetup for:* 1\. Asians who want to practice German and/or English\. 2\. German speaking individuals who are studying \(preferably\) Japanese\, Korean\, Mandarin or Cantonese\. 3\. Anyone who is interested in cultural exchange and wants to socialize\. *What you can expect:* 1\. A professionally organized meetup that can adapt to any changes given the current situation\. 2\. A Walk & Talk to break the ice\. 3\. A collaborating venue where you can further socialize with other members\. *** Whenever you attend a meetup, the most common as well as first question you get is: "Where are you from?" You probably heard this question a million times. Well, at least I did. From my own experience of attending over 200 international meetups in various countries such as Germany, Japan, Australia and Thailand, I can tell you that asking for the name is a better approach. “A person’s name is to that person, the sweetest, most important sound in any language.” - Dale Carnegie If you really want to connect with like-minded people you should remember their name, but you don't have to remember every persons name you've talked you. Be picky about that, don't be me who can somehow remember everyones name easily. Don't tell yourself sth. like "I'm bad at remembering names." It's all about developing the habit of asking for a name and keep the conversation going on. Furthermore, you want to learn German or any other language. Learning the local language is crucial to connect with the locals and developing a true friendship. This can be accomplished with immersion. My goal is to inspire you to go out of your comfort zone and improve yourself each time you join this meetup.

An open Berlin meetup for anyone curious about personal AI and OpenClaw. We are bringing together people who want to explore personal AI in a practical, social, and low-pressure setting. Expect short live demos, Q&A, and relaxed networking with others who are building, testing, or simply curious. No gatekeeping, no paywall, no polished setup required. Scrappy demos, unfinished workflows, and honest questions are all welcome. **Language:** English or German, depending on the group **Demos welcome:** Bring what you are building, or just bring questions Whether you are already using OpenClaw or just want to understand what personal AI can look like in real life, you are very welcome. RSVP if you want to join, and feel free to comment if you would like to demo something. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- Ein offenes Berlin Meetup für alle, die neugierig auf Personal AI und OpenClaw sind. Freu dich auf einen lockeren Abend mit kurzen Live-Demos, Q&A und viel Raum zum Netzwerken. Halbfertige Setups, Experimente und unfertige Ideen sind ausdrücklich willkommen. **Was dich erwartet** * Kurze Live-Demos * Offenes Q&A * Entspanntes Networking * Austausch über Personal AI und OpenClaw * Platz für praktische Ideen und ehrliche Einblicke **Sprache** Englisch oder Deutsch, je nachdem, was für die Gruppe vor Ort am besten passt. **Demos und Speaker willkommen** Wenn du an etwas baust, einen Workflow testen willst oder einfach etwas zeigen möchtest, bring es gern mit. Und wenn nicht, komm trotzdem vorbei.

As the title suggests, this is a **casual get-together** for the **[Tech in Berlin](https://www.techinberlin.com/)**[ ](https://www.techinberlin.com/)community — no talks, no slides, no agenda. Just conversations and connections with people who are building, learning, or curious about tech. Whether you're a founder, developer, product manager, designer, student, or just exploring the tech space in Berlin, you’re welcome to join. **What to expect:** * Relaxed, informal atmosphere * Opportunity to **make new connections** * Space to **vibe code together** (the café has great Wi-Fi) * Share what you’re working on and **get feedback or fresh perspectives** * Open conversations about tech, startups, ideas, or anything in between **No agenda. No pitches. No expectations.** Just show up, grab a drink, open your laptop (if you want). If you’re new to Berlin, new to tech, or just want to expand your circle — this is a good place to start.

Martial Arts and Metal! From now on we host our "Metal Mittwöch" on every 2nd wednesday of the month. Without Gi, but in your metal shirt or battle jacket! And of course you will get a lot on your ears. The training will be hard and heavy! (Maybe you should not wear your best shirt ;) and alcohol is of course only possible afterwards) IF YOU DON'T FIND THE ENTRY PLEASE CALL 0178 183 0004 Kampfkunst + Metal! Ab jetzt veranstalten wir bei uns jeden 2ten Mittwoch des Monats unseren "Metal Mittwöch". Ohne Gi - dafür im Metal shirt oder in Kutte! Dazu gibts es ordentlich was auf die Ohren! Das Training wird hard and heavy! (Kommt am besten nicht in eurem besten Shirt ;) und Bier natürlich erst danach!) IF YOU DON'T FIND THE ENTRY PLEASE CALL 0178 183 0004

There’s a peace and relaxation possible for everyone, that can occur with total ease, with a simple body process, called Access Bars ® Access Bar is like hitting the delete button on your computer’s hard drive. Negative thought patterns and mental chatter can be released and a space for peace, ease and new possibilities opens up. Best, everyone can learn this body process in a one day class. You can give the Bars® to your family and friends and to your clients. And of course you can let the Bars run also on yourself. Access Bars ® and Bodyprocess classes in English take place once a month, classes in German twice a month. Just ask for your desired date. Would this class be a contribution to your body, to your life, your business? Then I would like to have you in a one-day Access Bars. Consider this your invitation to a totally different paradigm for healing, change and transformation in all aspects of your life. The Access Bars class fee is 380 Euro, Practitioner License, Manual, Charts, food and drinks included. PLEASE NOTE THAT REGISTRATION IS ONLY POSSIBLE BY PHONE. For more information please visit my website: https://www.i-feel-so-good.de/home-en.html What happens in the brain during a Bars Session: https://www.youtube.com/watch?v=DgGbFRjqQPk If you have any question or you want to book a session, do not hesitate to contact me. Once a week we have an Access Bars ® evening that gives you the opportunity to exchange the Bars® and to meet other practitioners. ®

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.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

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

**About this Event** Curious how your secure coding skills stack up in real-world scenarios? Join OWASP St. Louis for a **hands-on Secure Code Training Tournament** sponsored by Security Journey. This is not a lecture... you’ll be actively solving real vulnerabilities in a live, interactive environment. **What to Expect** * Hands-on secure coding challenges (break/fix format) * Real-world vulnerability scenarios developers face today * Friendly competition with a live leaderboard * Prizes awarded to the **top 3 participants** **Important Details** * **Laptop required** (you’ll be coding) * Hybrid format: join **in-person or remotely** * Pre-registration required to access the platform * You do not need to be an experienced developer or security expert to participate. The challenges start easy and progress from there. Come have fun! In addition to RSVPing to this Meetup event, please register here to secure your spot and get platform access: [https://forms.office.com/r/VpTMjg8Smw](https://forms.office.com/r/VpTMjg8Smw) Whether you're a developer, AppSec professional, or just getting started, this session is built to sharpen real skills! (\* OWASP does not endorse or recommend commercial products or services, allowing our community to remain vendor neutral with the collective wisdom of the best minds in software security) **Event Details** 📍 **Location:** RubinBrown, 7676 Forsyth Blvd., Suite 2100, Saint Louis, MO 63105 🗓 **Date/Time:** April 28, 2026 / 6:00pm CST **Food and Drink will be provided!** Please RSVP so that we can plan accordingly. ℹ️ **Parking Directions:** * Google map to “North Lyle Avenue & Forsyth Boulevard, Clayton, MO 63105” Link: https://maps.app.goo.gl/WYqyZ3Jv9cUBBF289 * Enter the **Parking Garage #4** (from Forsyth Blvd) next to Dry Bar * **Pull a ticket at the gate** and proceed into the garage, turning right. * Up the ramp is visitor parking. **You may have to go up past the 6th floor.** * **Take elevator to \*L** (Lobby of Centene Plaza C) * Check in at the OWASP sign-in table in the lobby; you'll be escorted up * **Bring your parking ticket with you** to get validated at the meetup. **Who Should Attend** * Application & security professionals * Software engineers and developers * IT leaders and managers * Anyone with an interest in application security * You DO NOT need to be an OWASP member to attend! **About OWASP** The Open Worldwide Application Security Project (OWASP) is a nonprofit foundation dedicated to improving the security of software. Local chapters provide opportunities to learn, network, and collaborate with others in the field. Come to learn more and participate in OWASP Saint Louis - your voice will continue to help shape what OWASP Saint Louis becomes next.

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!

Will fill in once finalized.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!