Code Review

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)

**Topic: In Defense of Tech Monopolies: A Debate You Weren't Expecting** Are tech monopolies really the villain everyone makes them out to be? In this session, we'll explore the counterintuitive argument that concentrated tech power can drive innovation, create better developer experiences, and produce more stable ecosystems. Think about it - would we have Android without Google's scale? Would open-source AI flourish without Meta's resources? We'll lay out the strongest case for tech monopolies, then break into groups to stress-test, challenge, and debate whether big tech consolidation helps or hinders the software community. **What to Expect:** * A concise, 5-10 minute expert presentation introducing us to the nuances of the topic. * Engage in insightful discussions with fellow participants in breakout groups, exploring diverse experiences and practices. * Dive into prepared questions designed to challenge and expand your perspective on the topic. * A fantastic opportunity to network with like-minded professionals and enthusiasts passionate about software development and team building. *** **Broadening Our Discussions:** We explore a wide range of topics, including Extreme Programming (XP), agile management methods, lean theory, career management, programming katas, and other areas related to software development. Whether you're new to software, a seasoned practitioner, or an expert, your insights and experiences are valued here! *** **Event Details:** We'll gather from 7:00 PM, officially start the session at 7:15 PM, and take a break at 8:30 PM to decide the topic for our next session. Don't miss this chance to learn, share, and connect!

Join us for a vegan Vietnamese dinner at **Good Morning Vietnam Vegan**. Enjoy time with nice people and delicious plant-based Vietnamese food. **Where**: Good Morning Vietnam Vegan – Bergmannstraße 102, 10961 Berlin, Germany **When**: Tuesday 17 March 2026, 19:00 **What to do now**: please read the fee note below before you RSVP **€1 event fee (non-refundable)** The €1 fee helps cover the Meetup app fee and other small expenses, and any excess will be donated to animal rights NGOs. Please send it via the **PayPal details in the comments** (only visible to people marked **Going**) **within 48 hours of RSVPing**. No PayPal? Message me for the IBAN. **If the €1 fee isn’t received within 48 hours of RSVPing, your RSVP will be automatically cancelled.** We want everyone to feel safe and comfortable. Please respect boundaries; harassment or disrespectful behaviour isn’t welcome and will mean removal from future events.

Tired of high-level AI talk? Join us for an engineering-first day in Berlin. Build autonomous AI Agents from scratch, master the "Vibe Coding" workflow with Google experts, and dive into hands-on labs focused on real-world architecture. *Apply for a* ***[ticket here](https://www.aicamp.ai/event/eventdetails/W2026031700)****. Limited to 200 qualified builders.* **Expect expert-led deep-dives into:** * Agentic Orchestration: Reasoning and planning with Gemini. * Rapid Development: Leveraging the Agent Development Kit (ADK). * Pipeline Automation: Mastering Gemini CLI and Antigravity. Whether you are scaling a high-growth startup or driving innovation within an enterprise, you will participate in expert-led labs to solve real-world architectural blockers. Walk away with functional code snippets, and new skills. **Who Should Attend?** These sessions are best-suited for engineering squads looking to stress-test their 2026 roadmap. *Note: To join the labs, you must bring your own laptop and power cable. The activities are intended for laptops and cannot be completed on a tablet or phone. Agenda is subject to change.* **PLEASE NOTE:** RSVP here is not enough, you must apply for a[ ](https://www.aicamp.ai/event/eventdetails/W2026031700)**[ticket here](https://www.aicamp.ai/event/eventdetails/W2026031700)**. Limited to 200 qualified builders. \-\-\-\-\-\-\- For the latest Berlin Tech News, Events & Jobs head to **[techinberlin.com](https://www.techinberlin.com/)**

**Important**: Register on the [event website ](https://www.aicamp.ai/event/eventdetails/W2026031700)is required for admission. RSVP is turned off on meetup. **Description:** Tired of high-level AI talk? Join us for an engineering-first day in Berlin. Build autonomous AI Agents from scratch, master the "Vibe Coding" workflow with Google experts, and dive into hands-on labs focused on real-world architecture. **Expect expert-led deep-dives into:** * Agentic Orchestration: Reasoning and planning with Gemini. * Rapid Development: Leveraging the Agent Development Kit (ADK). * Pipeline Automation: Mastering Gemini CLI and Antigravity. Whether you are scaling a high-growth startup or driving innovation within an enterprise, you will participate in expert-led labs to solve real-world architectural blockers. Walk away with functional code snippets, and new skills. **Who Should Attend?** These sessions are best-suited for engineering squads looking to stress-test their 2026 roadmap. *Note: To join the labs, you must bring your own laptop and power cable. The activities are intended for laptops and cannot be completed on a tablet or phone. Agenda is subject to change.* **Agenda** *** * 8:30AM - 9:30AM: Check-in & Networking * 9:30AM - 9:45AM: Welcome & Introduction * 9:45AM - 10:30AM: Opening Keynote * 10:30AM - 12:00PM: Concurrent Sessions & Hands-on Labs * 12:00PM - 1:00PM: Lunch Break 🍴 * 1:00PM - 3:00PM: Concurrent Sessions & Hands-on Labs * 3:00PM - 3:30PM: Coffee Break ☕ * 3:30PM - 5:30PM: Concurrent Sessions & Hands-on Labs * 5:30PM - 7:00PM: Networking Reception Register on the [event website ](https://www.aicamp.ai/event/eventdetails/W2026031700)is required for admission.

Hey everybody, Moving to Berlin is an adventure, but let’s be real—the bureaucracy is a headache and making friends in a city this big can feel like a full-time job. Whether you’ve been here for three days or three years, the **Expat Stammtisch** is your home base to meet cool people. 🍻 We have a reserved area just for us. Grab a drink, find a spot, and join any conversation. **Ready to join?** See you at the bar!

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.

Got an app idea in your head… but no clue how to start building it? Join us for a **beginner-friendly Saturday morning workshop** where we’ll explore the basics of **vibe coding**. We’ll use **[Lovable]((lovable.dev))** to build a simple prototype together. Expect a relaxed, hands-on experience **for absolute beginners**. ‼️‼️IMPORTANT PLEASE READ‼️‼️ Please notice that our events have moved to Luma. Please register for the official event on Luma here: [https://luma.com/mh18akso](https://luma.com/mh18akso) **Who is this for?** * **Complete beginners** and the coding-curious * Anyone wanting to try something new in a relaxed group setting * Students, creatives, hobbyists, and professionals * Founders who want to validate ideas quickly * Anyone who ever had a cool app idea but didn’t know how to pull it off **What to bring** * A **laptop** (recommended) or tablet * A small idea you’d like to prototype (or pick one on the spot) **Schedule** In 2 hours, you’ll go from **Blank page to Interactive prototype** **10:00-10:15** Arrive and get settled **10:15-10:30** Lovable demo and vibe coding concepts **10:30-10:50** Individual exploration **11:00-11:30** Group project **11:30-12:00** Presentations and audience vote → **winning team gets free drinks** ☕️🥤🍸 **Location** **The Social Hub Berlin** — Alexanderstraße 40, 10179 Berlin **Price** *Free*. (Please support the venue with at least one order 🙏) **Disclaimer** Photos/videos may be taken. By attending, you consent to possible capture and use in event-related content. If you prefer not to appear, tell a host when you arrive.

Register: [https://luma.com/cc38ppvg ](https://luma.com/cc38ppvg) Supercharge your dev game at the **Agents and APIs Developer Meetup** brought to you by Postman. ​​​Do you: * ​​​Need to put your AI agents into production? * ​​​Create APIs that actually scale with your AI app? * ​​​Want to meet other AI & API builders and share best practices? ​​​Then this event is for you! ​​​Join us, along with special guests from \*\*[Monoscope ](https://monoscope.tech/)\*\*and **[Neo4j](https://neo4j.com/)**, for food, networking, live demos, and best practices on how to scale API development and get your AI apps ready for production. Come for the learning, stay for the vibes.

Join us for an inspiring life drawing session in Vetomat, Berlin. Our sessions provide a supportive and creative space for artists of all levels to practice figure drawing in a relaxed environment. Whether you are an experienced artist or just starting out, our group welcomes everyone to come together and explore the art of life model drawing. Channel your creativity and hone your skills as you sketch our professional life model during our dynamic sessions. You can expect a friendly and inclusive atmosphere, where you can exchange ideas, techniques, and feedback with fellow artists. No ticket required, payment is by donation, suggested amount is 10,-

**PyBerlin: March event** **Sponsor**: Spiced Academy **Location:** Spiced Academy, Ritterstrasse 12-14, 10969 Berlin, Germany **Agenda:** 6:30 pm – Doors open: snacks, drinks, networking 6:55 pm - Welcome from PyBerlin 7:00 pm - Welcome from the sponsor - Spiced Academy 7:10 pm – **What Actually Changes Customer Behavior? Causal Thinking Across Attribution, Segmentation, and Growth // Dr. Maryam Ramezani-bartsch** Customer data is often used to explain what happened: attribution assigns credit, segmentation groups users, and dashboards track performance. Yet marketers and business leaders still struggle with a more fundamental question: what actually changed because of our actions? This talk introduces causal thinking as a practical way to interpret customer data across attribution, segmentation, and growth. It shows why correlation-based metrics can be misleading and how counterfactuals and incrementality help teams ask better questions when they look at results. A concrete email campaign example illustrates how causal uplift modeling separates customers who would have purchased anyway from those whose behavior truly changed. The goal is to help data scientists, marketers, and decision-makers move from reading metrics to reasoning about incremental impact and to make better decisions because of it. Speaker's bio: Dr. Maryam Ramezani-bartsch is a data and analytic leader with over 20 years of global experience building and scaling customer analytics and data science teams. She has led the development of customer data, marketing measurement and targeting capabilities for global brands such as adidas, Sky, Delivery Hero, and Zalando, helping embed customer-centric, data-driven decision making across organizations. Her work focuses on building customer data models, causal analytics, experimentation, and developing teams that turn insights into sustained business impact. 7:40 pm - break 8:00 pm – **Your Next On-Call Engineer could run Locally //** **Anthony Alaribe** What if your next on-call engineer wasn't a person, but a Python agent running on your machine? Inspired by the explosion of local agents like OpenClaw, this talk explores what happens when we point agentic workflows at the systems we monitor. We'll walk through the checklist most engineers actually run during on-call: checking dashboards, tailing logs, correlating errors with recent deploys, and then explore how to build a custom Python agent that automates these checks using tools like LangGraph, OpenTelemetry, and the Anthropic SDK. You'll leave with a working starting point and a new way to think about what agentic AI can do beyond chatbots. Speaker's bio: Anthony has spent over a decade building software at companies like Opera, and DeliveryHero. He has faced his fair share of dealing with unreliability software and breaking changes in APIs, including losing over $2m in orders to such an incident, amongst other war stories. Say hi when you him. He loves conversations about AI, databases, and programming languages. 8:30 pm – What makes XGBoost so powerful // Rakibur Rahman 9:10 pm - closing This event will be only in-person. Please check our Code of Conduct and official health regulation in Berlin before coming. If you feel some signs of sickness, please consider skipping this event and attending another time. We will have plenty of events in different formats in the future. Looking forward seeing you all!

Community Partnership with Postman Registration https://luma.com/cc38ppvg Supercharge your dev game at the **Agents and APIs** **Developer Meetup** brought to you by Postman. ​​​Do you: * ​​​Need to put your AI agents into production? * ​​​Create APIs that actually scale with your AI app? * ​​​Want to meet other AI & API builders and share best practices? ​​​Then this event is for you! ​​​Join us, along with special guests from \*\*[Monoscope ](https://monoscope.tech/)\*\*and **[Neo4j](https://neo4j.com/)**, for food, networking, live demos, and best practices on how to scale API development and get your AI apps ready for production. Come for the learning, stay for the vibes. ## ​​​Speakers * ​\*\*[Zaid Zaim](https://www.linkedin.com/in/zaidzaim/),\*\* **Developer Advocate** at **Neo4j,** will walk through context Graphs and how they aid explainable, Decision-Aware AI Agents. * ​\*\*[Anthony Alaribe](https://www.linkedin.com/in/anthony-alaribe-293a41bb/?originalSubdomain=de),\*\* **CTO & Co-founder at Monoscope,** will talk about a DIY Agent that could be your next on-call engineer and run locally * ​\*\*[Gbadebo Bello](https://www.linkedin.com/in/gbahdeyboh/)\*\*, **Developer Advocate** at **Postman** will present a demo on the new AI native features in Postman and how they fit into your development lifecycles. ​​​Space is limited. Register now, and we look forward to seeing you there! *** ​​**Keep the Conversation Going** * ​​Still want more? Join the **[#ai-conversations](https://discord.gg/ajCXuHrXfV)** channel on Postman Discord ([https://discord.gg/ajCXuHrXfV](https://discord.gg/ajCXuHrXfV)) to share your favourite tool, script, or workflow and meet other builders exploring the same space. * ​​Follow-up threads and resources will be shared after the event, so you can try everything yourself *** ​​**Legal Stuff** ​*Postman, Inc. can send me updates and news about its products and services. I can unsubscribe anytime using the link in an email or by contacting Postman*

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.

**Last meetup before the summer!** This time, we are trying a new format — **EM Kata Unconference**. ​**Two tracks:** AI in software delivery and fundamentals of tech leadership. Participants can propose topics and either give a short talk or host a discussion. ​**Want to give a talk, discuss a challenge, or bring your own case?** Write to [Alik](https://www.linkedin.com/in/oleksandrgolub/) on [LinkedIn](https://www.linkedin.com/in/oleksandrgolub/). ​After this event, EM Kata will take a **summer break** while we focus on launching a new product that will help many people in Germany **pass their German exam Confidently**. ❗❗❗ **Register here** ➡️ https://luma.com/c2vcpxao ⬅️ ❗❗❗ **❓ What is an EM Kata?** EM Kata is a playground where Engineering Managers\* can practice their skills and receive immediate feedback. **\* - 👨‍🔬 / 👩‍🔬EM Kata is also beneficial for** * **Senior Leaders:** Head of Engineering, Engineering Directors, VPs, CTOs - to practice and enhance mentoring and coaching skills. * **Tech/Team Leads:** To acquire essential skills for a successful transition to an EM role. * **Software Engineers:** To gain insight into EM responsibilities and explore if a leadership career path interests them. Each small group works on identifying the root causes of the challenges by analysing them from different perspectives, determining the most efficient strategy to solve them, developing a detailed plan, and necessary team constellation changes & architecture. **🕑 Event Schedule** ​​18:00 – Doors open for snacks, drinks, and networking 18:30 – Introduction 18:50 - 21:00 – EM Kata Unconference 21:00 till 21:30 — Networking and discussions. **📍 Venue** **Delivery Hero** Oranienburger Str. 70 10117 Berlin **📣 Spread the Word** **Love our meetups?** Help us grow the community! Share your experience on LinkedIn—whether it’s what you’ve learned, key takeaways, or why you enjoy EM Kata. By spreading the word, you’ll help more engineering managers and aspiring tech leaders find a safe environment to practice and enhance their skills. We believe it’s much more fun to have fun with friends, so come join us and bring your friends along! Tag us **#EMKata #Meetup by #SEML about #TechLeadership**. **🤝 Sponsored by Delivery Hero** A big shout-out to Delivery Hero for sponsoring our event and supporting our mission to foster a tight-knit community of engineering leaders. **👍 Code of Conduct** We adhere to the [Berlin Code of Conduct](https://berlincodeofconduct.org/) to ensure a welcoming and respectful environment for all participants.

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

Join us for pizza and conversation at JT’s Pizza! 🍕 Good slices, good stories, and plenty of laughs around the table. Come hungry, bring your best conversation, and let’s enjoy a relaxed evening with great company. Extra cheese and extra chatter encouraged! 😄

**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

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

12:45-3:45 in the Meeting Room on the library lowest level. Bring your yarn projects, meet new friends. If you plan to attend, please RSVP yes. If you can’t attend, please change your RSVP to no. This helps anyone who is waitlisted and it allows me to have an accurate count of attendees as our space is quite limited. Plenty of parking in the lot, in the overflow lot across the street, and on the street. See you there! Winter Note: If the weather is bad and I have to cancel the Meetup, i will issue the cancellation not later than 10 a.m. of that day.

**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)

**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