Software Craftsmanship

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!

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)

Ok everybody, it's 2026, and after taking a break for the holidays, games are starting up again as usual. We'll meet, have a beer, and play a round of cards against humanity. Laughs will be had, groans will be groaned, beer will go down the hatch. This event is public, and prior experience with the game is not required. You are not required to drink alcohol, but please note that we are crashing a bar (cash only), so a beverage purchase or two is appropriate and necessary for us to maintain their goodwill. See you there!

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

**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.

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.

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. Ask the barista/bartender if you can't find us.

In our last sprint, we established our cloud-native foundation by containerizing our agents and deploying them to Google Cloud Run. But manual deployments don't scale and require you to dig out the exact docker build and gcloud push commands from your shell history every time you tweak your agent’s prompt. **The Plan:** This session is about creating a **truly robust, repeatable deployment process**. We will wrap up our infrastructure setup by writing GitHub Actions that automatically build and push our agent containers to Google Cloud Artifact Registry on every commit. With a solid, "set-and-forget" pipeline in place, we'll shift focus back to agent behavior. We will build a simple orchestrator agent that uses the A2A protocol to dynamically delegate tasks to the worker agents living in the cloud. **This is a "Lab" session. We will:** * Automate for Robustness: Replace manual command-line wrangling with a GitHub Action workflow to build and push our Docker images to GCP on every push to main. * Build the Orchestrator: Develop a lightweight central agent designed to interpret a complex user prompt and route sub-tasks appropriately. * Live Multi-Agent Communication: Establish an active dialogue over the A2A protocol between your local orchestrator and your newly deployed cloud workers. **The Format** We run our sessions like an anthology series: Every meetup is a standalone sprint. While we often build on previous results, each session provides a complete experience and remains fully accessible to first-time attendees. This is a high-density micro-meetup limited to 6 seats. **What you'll build** By the end of the session, you'll have: * A Repeatable CI/CD Pipeline: A set-and-forget GitHub Action that handles the Docker build and Artifact Registry push automatically, ensuring consistent deployments without the hassle. * An Orchestrator Agent: A coordinator capable of breaking down requests and utilizing external agent tools. * A Live A2A Network: A functioning multi-agent setup where your orchestrator successfully communicates with and aggregates results from your cloud-hosted workers. **Schedule (Saturday, 10:00 - 13:00 CEST)** * 10:00: Quick round of introductions. * 10:15: Intro session: Robust CI/CD with GitHub Actions, Artifact Registry, and Orchestrator routing patterns. * 10:30: Build time: CI/CD automation & building the Orchestrator. * 12:00: Live demos + technical teardown. * 12:45: Wrap-up + takeaways. **Prerequisites** * Accounts: A Google Account (for GCP) and a GitHub Account (for Actions). * Laptop with dev setup: Docker and Git installed and working. * Access to an LLM API: (Gemini, Claude, OpenAI, etc.). * Mindset: This is a lab for engineers, not a tutorial. We learn by building, breaking, and iterating. **Logistics** * Location: We meet at my office in the Grunewald area near Martin-Luther-Krankenhaus. The exact address will be shared privately with attendees to maintain privacy. Capacity: Limited to 6 seats.

**Sunday Beginner Tango @ Tangoloft 💃🏾🕺** Curious about tango? This class is for you – no experience and no partner needed. We focus on connection, simple fundamentals and creating a relaxed, inclusive space where everyone can explore both roles. 🕐 16:30–18:00 🎶 Afterwards: Milonga (reduced entry for participants) 💸 20 € or USC + 10 € Come as you are – and be part of a growing, open tango community ✨ **Einsteiger Tango am Sonntag im Tangoloft 💃🏾🕺** Du willst Tango ausprobieren? Dann bist du hier genau richtig – ganz ohne Vorkenntnisse und ohne festen Partner. Wir legen den Fokus auf Connection, einfache Basics und eine entspannte, inklusive Atmosphäre, in der jede\*r beide Rollen tanzen und lernen kann. 🕐 16:30–18:00 🎶 Danach: Milonga (ermäßigter Eintritt für Teilnehmende) 💸 20 € oder USC + 10 € Komm vorbei und werde Teil einer offenen Tango-Community ✨

Hey friends! 👋 Developer Relations is one of those rare disciplines where you're part engineer, part storyteller, part community builder. And it rarely comes with a playbook. Whether you're deep in the DevRel trenches, building out your first DevRel team, or exploring whether this might be the right career path for you — this is your people. Join us on Wednesday, April 8th at 6 PM at Castle Mitte for an informal evening of conversations, connections, and maybe a few strong opinions about what "good DevRel" actually looks like. No talks. No slides. Just real conversations with folks who get it. To get things going, the organizers will throw out a question to the group: what does AI actually mean for DevRel right now? Is it changing how we write docs, run communities, measure impact? Or is the hype outpacing the reality? Come with your take. This is a great space for: * DevRel practitioners looking to swap notes and expand their Berlin network * Founders and engineering leaders thinking about building or scaling a DevRel function * Anyone curious about a career in DevRel and wanting to learn from people doing it See you at Castle Mitte! 🏰

Welcome to our cosy Godot Engine Community Meetup! This is not a structured meeting, but rather a friendly get-together. We will hang out, chat and maybe show some of our current projects! 🦜 Regardless if you are an artist, designer, programmer, beginner, hobbyist, professional or anything in between: join us for sharing knowledge, creating art together, coding together, joining game jams together and having fun! 🌼 This meetup will happen at [c-base](https://c-base.org), Rungestraße 20, 10179 Berlin. 🛰️ You can also join us on [our Discord Server](https://discord.gg/Sm3CgrqqQa). ☎️ Follow us on [Mastodon](https://mastodon.gamedev.place/@GodotUserGroupBerlin) for updates. 📢 Also check out [our website](https://godot.berlin). 🌐 Please be [excellent to each other](https://godotengine.org/code-of-conduct/)! 🕊️

**Important note: Please note that the event location changed. This event will be hosted at meeet West in Lietzenburger Str. 107, 10707 Berlin.** **Hello ServiceNow Developers of Berlin!** We warmly invite you to the next ServiceNow Developer Meetup in Berlin! Whether you are a developer, admin, consultant, or architect, your ideas and suggestions are guaranteed to be valuable and will be incorporated into the functioning of our group. **What to Expect:** * **Networking and Community Building:** Meet new people who also work in the ServiceNow field. This is a great opportunity to connect with like-minded individuals and expand your professional network. * **Open Forum:** Share your experiences, ask questions, and provide feedback on what you would like to see in future meetups. * **Free Snacks and Drinks** **IMPORTANT!!!** We want these events to truly be a "safe space" for ServiceNow professionals, so all recruitment and sales activities are prohibited. The organizers reserve the right to exclude anyone from the event who violates this rule. **RSVP and Participation:** To help us plan better, please RSVP here on the event page. Your early confirmation will greatly assist us in making this event a success. **Note:** due to international community in Berlin, we plan to run these events in **English**. We are excited to continue this journey with you to build a strong and supportive ServiceNow community in Berlin. See you there! **Meetup Agenda:** * **Welcome & Introduction** * **Ice Breaker && Get to Know** * **[Presentation:] Hybrid AI Workflows by ServiceNow's Lisa Holenstein** * **[Presentation:] CIS Data Foundations: An Introduction by SOLVVision's Hendrik Bockrath** * **[Presentation:] "Test-Driven Generation" - AI augmented coding for the enterprise by ServiceNow's Sascha Wildgrube** * **Q&A, Recap** * **Networking & Informal Discussions**

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.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

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!

Attend a free seminar on how to have successful and lasting relationships. At this seminar you will learn: How to spot and handle negative and toxic relationships. How to get through the "rough patches" in a relationship. How to choose the right people to work with. The three things that make or break any relationship. How to make a good relationship great. All are welcome. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. Hosted by the Dianetics and Scientology Life Improvement Center of Central Ohio.

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/

This is a free, in-person meeting on the subject of betrayals, losses and how to get over them so you can build lasting relationships. Burdened by a stressful relationship? Unhealthy relationships can trigger feelings of anger, despair or self-doubt. They can create dwindling spirals of fights and seeking to make-up, or trying to “pin the blame” on someone or something. If you don’t find the RIGHT reasons, or select the correct sources of the problem, the problem can just get worse and worse. Whether in love or personal ties, with friends or at work, our life really IS affected by the quality of our relationships. Good ones can promote pleasure and survival while less optimum ones can lead to annoyance, anger, self-doubt, stress, or even affect our health and ability to survive well. Whether you are suffering from a divorce, or a painful break-up, don’t know who to trust (or who to CHOOSE) as a partner, friend, boss or employee - the anxiety of relationship troubles can really make a mess of things. Maybe you’ve suffered a betrayal, or are dealing with hostility or criticalness or invalidation. Dwindling relationships can involve destructive behavior, where we hurt those we love, or start succumbing to self-destructive thoughts, attitudes or behaviors that spiral out of control and affect much more than our immediate relationship. Past losses in love or life can affect how we act or react to new people and situations and hold us back from even starting to create new, possibly great relationships! How can one get back onto a saner course of action? Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life: human relationships! Break free from self imposed limitations Here we will discuss: • How to “erase” the trauma of past hurts and betrayals so that one isn’t always repeating past mistakes. • Why and how do the negative emotions of others affect you? • Why is my partner withdrawing and what can I do about it? • Why do we sometimes feel compelled to hurt the ones we love? • Fights & arguments - what's really behind them? • What underlies “corrosive criticism” or the need to invalidate self or others? • How one can stably change one’s outlook on life so they can affect positive change? • Where do compulsive destructive behaviors come from and what can be done about them? • How to form closer bonds & keep growing the relationships with the people you care about? • How to enhance one’s own ability to survive and create positive healthy relationships whether in love, family & friendships or in work, business or one’s career? Relationships can be hard and life itself IS challenging. Why not arm yourself with the knowledge and breakthroughs that have been made about the mind, mental reactions & interpersonal relationships, so that one has better awareness and control over themselves and life in general. Learn where painful experiences are “stored” and how they can unknowingly affect us. You will also find out how one can “erase” those past painful experiences so that one is free to move forward without being tripped up by the past. Learn too, about what can lead some people to become “toxic” personalities and how to identify those traits in others so you won’t be tripped up trusting the wrong person. Our free Meet-ups occur in a safe environment where one can learn, without fear of judgment or criticism, and without the recommendation of harmful mental techniques or therapies, just how YOU can get yourself onto a happier & more successful path: in love & in life. We look forward to having you join us! This class is sponsored by the Dianetics & Scientology Life Improvement Center of Central Ohio.

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!