Oracle

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)

Wie feiern wir Feiertagen? Join us for our next German Sprachcafe as we cover the topic of Feiertage (holidays!). Our event begins with a brief moderation at 19:00 where the host will introduce the topic, explain the conversation guidelines, and create groups of different German ability. In your group you will converse with a native German speaker on the topic of Freizeit! What is your favorite holiday? How do you celebrate holidays? What holidays exist in your country of origin? These topic and more will be discussed with the participants in each group. So practice your German, whatever your level. Make mistakes, have fun, and improve in your language ability. Light snacks and drinks will be served to people in attendance. This event is free of charge! Our event officially ends at 20:30. Weather your just starting learning German, an intermediate, or growing in your language abilities, you are invited to join! This event is hosted by [Zoarkirche](https://efg-zoar.de/) and [Community Church Berlin](communitychurchberlin.de)

Join us for a community-led developer event focused on **AI-assisted coding with GitHub Copilot**. This event brings together developers to explore practical workflows, real-world use cases, and hands-on experiences using GitHub Copilot. Whether you are new to GitHub Copilot or already using it, this event will help you better understand how to apply AI-assisted coding techniques in everyday development hosted at **adesso SE**. **Sessions & Workshops** 1. **GitHub Copilot in practise - Sandra Ahlgrimm** 2. **Let's create a tiny AI library together, Copilot powered - Johannes Bechberger** 3. **GitHub Copilot Hands-on workshop - bring your laptops!** **Location** [Prinzenstraße 34, 10969 Berlin](https://www.google.com/maps/place//data=!4m2!3m1!1s0x47a84e50ecd583e3:0xde16d03634776e3b?sa=X&ved=1t:8290&ictx=111) **Agenda** 17:30 - doors open 18:00 - warm welcome by JUG leader **Sandra Ahlgrimm** and **Gregor Böhme** from **adessoSE** 18:15 - first session 18:40 - second session 19:30 - workshop **Abstracts** **Let's create a tiny AI library together, Copilot powered** We all want to do it. When you want to integrate AI into your tools, what do you do? You add LangChain4j or SpringAI and run with it. But do you know how these libraries interact with the AI service providers or your local llama-server instance? These libraries aren't magic, so let's peek behind the curtain and write a tiny AI library together. This way you'll discover the REST APIs that power it all. **Speaker** **Johannes Bechberger,** a nerd passionate about compiler building and program analyses that enjoys cooking and works on the JVM at SAP ([LinkedIn](https://www.linkedin.com/in/johannes-bechberger-381296149)), making profiling easier for everyone. **Sandra Ahlgrimm** is Senior Developer Advocate working for Java Developers with Microsoft at GitHub. She also leads the Berlin/Brandenburg JUG together with Jörg, Oliver and Jan. **Gregor Böhme** is the Director of Software Development and Delivery Maître at adesso SE and leads a competence center for custom software development. He has many years of experience in building and delivering large-scale software projects, as well as developing teams and growing engineering leaders.. **A big thank you to adesso SE** for hosting the event and generously providing food and drinks during the event. Your innovative approach and commitment to excellence are greatly appreciated!

Join our track sessions in Rehberge. Twice a month on Tuesdays, we’ll meet at the Track of Volkspark Rehberge at 18:30 for a group training. Meeting point - the Track of Volkspark Rehberge https://maps.app.goo.gl/ryhaXFxb3v9JJzyr8?g_st=ic Afterwards we‘ll have drinks or dinner if we feel like it. Don’t worry if you are new! Joining track sessions is a great chance to start 😉 Take care and see you soon ❤️ P.S. ‼️️ Please cancel your participation if you can’t show up, even if it’s at short notice so that we don’t wait for you. Thanks! ‼️

**Topic: XP in Science?** Science and Extreme Programming might share more than people might think - both live from rapid feedback, sharing knowledge and a mindset which embraces change. Let's figure out togehter how science look like if it takes XP seriously and what XP practitioners might learn from how science handles uncertainty. **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!

Dear Community, Another month with an interesting talk right before Hamburg Summit, and we would like to hear your thoughts for the rest of the year and after. Will be pleased to have you with us on the evening! We have limited seats - 50 only - first come first served! Our dearest thanks to Lightspeed for hosting us on the evening! =================================================== 18:30 - Warming up and networking chat 18:45 - Intro by AWS UG Berlin 19:00 - 19:40 - **Elias Abud // Delegated Access Management at Scale with AWS IAM Identity Center** This talk presents a delegation architecture that enables project owners and security stakeholders to manage their own users, groups, accounts, and permission sets while maintaining central governance. The solution introduces a unified API layer that can operate across multiple Identity Center instances and enforces organizational policies and quotas. It also applies the Backpressure Pattern to control request rates and protect Identity Center from overload. Participants will learn how to implement delegated identity management at scale while balancing autonomy for teams with centralized security oversight. 19:40 - 20:00 - Networking break with food, snacks and drinks 20:00 - 20:40 - **AWS User Group - Ask Me Anything** We would like to dedicate the time and stage to you, our dearest community members to ask your questions, share your thoughts and ideas, provide feedback. This can be technical, or community related. Everyone is welcome, and we aim to address your input in the upcoming AWS Summit and more. 20:40 - 20:45 - Closing & Final Remarks =================================================== **Very Important: Only 50 seats are available for this event.** If you want to make sure you can attend: Register yourself with your "full name" here at meetup.com Arrive on time - seats are first come, first served. As soon as there are seats available, you are welcome to join with your registration. In case there are no more seats available, we won't be able to let you join us this time. We thank you very much for your understanding! ================================== Additional Information **This event is wheelchair friendly.** Help us spread the word, and invite your friends & colleagues! If you're attending with wheelchair and need assistance, please mail us: organisers@berlinawsug.de for further details. Would you like to host AWS UG Berlin events at your company? [Register here](https://bit.ly/aws-host) Would you like to speak at AWS UG Berlin sessions? [Submit your talk here](https://bit.ly/aws-talk)

**We switched away from Meetup for organizing this event!** Right now, you have a couple of options, because we're still trying to find the best alternative. Please go to one of the following event pages, instead, and let us know, which one you'd prefer and for what reason! Help us find the best way to organize the event while supporting Free and Open Source software! \* [lu.ma/vuejs_berlin](https://lu.ma/vuejs_berlin) \- not open\, unfortunately \* [openmeet.net/groups/vuejs-berlin](https://openmeet.net/groups/vuejs-berlin) \- open alternative that supports atproto \* [roomy.space/vuejs.berlin](https://roomy.space/vuejs.berlin/) \- open community chat linked to OpenMeet

Hello Gophers, Welcome back for another year of Go talks and networking! Would your company like to host our meetup? Let us know! If you'd like to give a talk - submit your proposals here: http://goo.gl/forms/54YvJT223F All talk formats work: short talks (5-10 min) as well as regular length (25 min). If you have more ideas - talk to us at the Gophers slack: https://invite.slack.gobridge.org/ in the #berlin channel, and follow us on twitter: https://twitter.com/gdgberlingo **Speakers**: *Simon Schulte* is a Tech Lead with nearly a decade of experience building scalable backend systems across fast-paced product companies. With a background in business informatics and a passion for Golang, cloud infrastructure, and DevOps, he has spent his career solving complex engineering challenges. He is particularly excited about leveraging AI and LLM workflows to eliminate the tedious, repetitive work that slows developers down — think tech debt, boilerplate, and documentation — so engineers can spend their energy on what actually moves the needle. For Simon, AI isn't about replacing developers; it's about giving them back their time. *Daniel Peralta Madriz* is a backend engineer from Costa Rica with around 6 years of experience working with Golang, although, sadly, he's been spending most of his time lately working with Node.js :(. He is interested in distributed systems, scalability, and developer experience, and is currently experimenting with how to leverage LLMs to safely and autonomously execute repetitive tasks. *Michael Morgen* is a Platform/infra engineer by day, runtime and network optimizations by night. Join in person at: **Talon.One** Talon.One is the incentives engine behind 300 of the world’s most-loved brands, unifying loyalty and promotions on a single flexible platform. Their customers run millions of real-time incentive decisions across markets, channels, and use [cases.As](http://cases.as/) incentives become more strategic than ever, they are continuing to raise the bar for what businesses can build and how fast they can build it Wiener Str. 10, 10999 Berlin https://maps.app.goo.gl/8eMjgWes1E4TBA3c7 or virtually at: https://www.youtube.com/live/qh__TQ1bMF0?is=hw21pk0ZE3HGyaaT *** Agenda 10:49 PM: Networking Networking over drinks and food 7:30 PM: Welcome Welcome words from the organizers 7:35 PM: Talk 1: Go-ing Against the Chaos: Deterministic LLM Workflows / Daniel Peralta Madriz (Backend developer) & Simon Schulte (Techlead of Webhooks and Notifications) @ Talon.One LLMs are powerful, but “it works most of the time” isn’t good enough for production. In this talk, we’ll walk through how to design deterministic workflows around non-deterministic models using Go. From structured iteration loops to validation steps and guardrails, you’ll learn how to move beyond prompting and start engineering reliable LLM-powered systems 8:10 PM: Announcements and break Announcements, HR lost & found, open mic 8:30 PM: Talk 2: About Go Memory Allocator / Michael Morgen, Platform/infra engineer @ Mirantis A short talk about how Go gives memory to your program. We will look at the main allocator parts, why small allocations are usually fast, when Go asks the OS for more memory, and a couple of simple examples where this knowledge helps performance. 9:05 PM: Networking Networking over drinks and food *** Hosted By Natalie Pistunovich, Organizer Ole Bulbuk, Organizer Tim Scheuermann, Organizer Anderson Queiroz, Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-berlin-golang-presents-hybrid-may-golang-meetup-1/.

Du möchtest dein Deutsch in entspannter Atmosphäre üben und neue Leute kennenlernen? Dann komm zu unserem regelmäßigen Sprachcafé ans Goethe-Institut Berlin! In unserem sonnigen Hinterhof sind alle herzlich willkommen – ganz besonders internationale Teilnehmende, die spielerisch und ohne Druck ihre Deutschkenntnisse verbessern möchten. In lockeren Gesprächsrunden tauschen wir uns aus, lachen zusammen und knüpfen neue Kontakte. Für eine gemütliche Stimmung sorgen Kaffee, Tee und Kekse – du musst nur dich selbst mitbringen. Die Veranstaltung ist kostenfrei! Wir freuen uns auf dich! 🌍

**Wie gut ist dein Deutsch? Mach unseren kostenlosen Deutsch-Einstufungstest!** Im Sprachenatelier kannst du kostenlos dein Niveau testen, bevor du deinen Sprackurs beginnst! Der Test dauert nur 15-20 Minuten und du solltest ihn spätestens 2 Wochen vor deinem Kursebeginn machen. Melde dich hier auf unserer Webseite dafür an: **https://www.sprachenatelier-berlin.de/de/topic/5472.einstufungstest-deutsch.html** Wir freuen uns auf euch!

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.

An inspiring, high-energy meeting of public speaking, connection, and personal growth in the heart of Berlin. **Mercury Toastmasters Berlin** invites you to our weekly meeting at our new home at **Das Center, Potsdamer Platz**, in the stunning **Historic Imperial Breakfast Hall**. *Experience the **power of prepared speeches** loaded with bold ideas, participate in our **dynamic Impromptu Session**, and **gain valuable insights** during our feedback segment.* *Leave with practical tools, fresh ideas, and renewed inspiration.* *Whether you want to speak up at work, boost your presence, or just meet inspiring people, you’ll feel at home at Mercury Toastmasters Berlin.* *** **[What to Expect:](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)** ✨ A supportive space to speak, grow, and connect 🎤 Engaging prepared speeches ⚡ Fun, fast-paced impromptu speaking challenges 💬 Feedback session you can actually use 🌍 A friendly, international crowd (around 25–30 people) **Schedule** (times may vary) ⏰ 19:15 - Doors open & networking 🎙️ 19:30 - Prepared Speeches 🏓 20:35 - Impromptu Session (Guest welcome to join) ↩️ 21:00 - Constructive feedback 💬 21:30 - Food, drinks & relaxed socializing **No experience needed.** ***Come curious. Leave energized.*** *** **🤙 [Hear it from our members:](https://maps.app.goo.gl/eRtvR9DRNqU9WZQn7)** *“You can sharpen your public speaking skills and gain tons of confidence, while having fun and making new friends. Mercury is well-structured, fun, and affordable.”* — *Therese Pitt* *“Mercury gave me a safe place to speak, create, and grow. I love the multicultural vibe and supportive community. It’s the best place to learn and have fun.”* — *Krisztina Linka* *** **[Did You Know?](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)** Toastmasters is where people go to get better at speaking—and grow into confident communicators and leaders. Today [Toastmasters ](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)has 350,000+ members across 16,000 clubs in 143 countries. And [Mercury](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/) is one of the best places to experience it. So bring your curiosity, your energy—and just be yourself. Whether you’re just starting or ready to level up, there’s a place for you here. *** **[Wondering what you get as a member?](https://mercurytoastmasters.de/membership-mercury-toastmasters-berlin/)** Think expert feedback, real-world speaking practice, and a supportive crew that’s got your back. [See you Wednesday night! 🎉](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)

Join this Professional Communication session — to sharpen the skills for architectural pitches, elevator pitches, interviews. This time we meet in the Monbijou park. 💡 How it works The event is split into two parts: 1. **Communication (10 minute rounds)** – One participant answers a round of design and behavioral questions. Each other participant gets to ask him one question. 2. **Feedback Round** – The group provides feedback on communication, structure, and clarity. Constructive criticism is encouraged. 💡You will be asked: * **Light design problems** (high-level reasoning, not code) * **Behavioral questions** (“Tell me about yourself”, “Describe a challenge you faced...”) No need to prepare anything in advance — just bring curiosity and an open mind. 💡Note: location is the entrance to Monbijou park

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.

Practical AI for Power BI Developers A year ago, “agentic AI” was mostly hype for Power BI teams. Today, it deserves your undivided attention. For Power BI pros, there is now a real opportunity to reduce repetitive development work, accelerate delivery, and help developers do more, but only when strong DataOps practices are in place to make AI workflows effective. This session is a no-nonsense introduction to effective AI patterns for Power BI and Fabric development. Along the way, we will make sense of the growing pile of terminology, including skills, plugins, hooks, and MCP. You will see examples of how modern AI tooling can help with development tasks across Power BI and Fabric, along with the prerequisites, guardrails, and DataOps principles needed to use it responsibly. Whether you're burned out on AI hype or already using Copilot CLI daily, this session will show you the foundations that are finally making AI-assisted development genuinely useful.

**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** TBD **YouTube Link** TBD

**Soulbits Circle: A Monthly Gathering** **Every fragment of your story is medicine; come weave it into being** **Hosted by: Caitlynn Fortson** **[www.kalikwellnesswithin.org](www.kalikwellnesswithin.org) \| [www.centerfornewlife.org](www.centerfornewlife.org)** **The Center for New Life or Virtual, upon request** **Monthly Circles \| Fridays 6:30\-7:30PM** **Upcoming Dates: 5/1, 5/29, 6/26, 7/24, 8/28, 9/25, 10/23, 11/27, 12/18** A monthly healing space where we gather to tend the pieces of ourselves and weave them back into wholeness that we are. Each session opens with a Soulbits oracle image setting the tone for the gathering we will move through. We will come together to honor the natural rhythms of rooting, rising, releasing, and receiving; the cycles that shape the soul’s journey. Through the four pillars of being: mindset, movement, connection & nourishment, we will create a space where imagery, sensation, and community weave together. Where the body becomes the guide, images act as mirrors, and the soul speaks. This circle is about noticing what rises, honoring what’s true, and reconnecting with the parts of yourself ready to be seen. This is a space to gather your scattered pieces, soften your body, and return to your truth with community by your side. Soulbits Circle is a reminder that every fragment of your story, every soulbit, belongs. Together we weave them into the blooming wholeness that you are. *Energy Exchange: 1-group $20-40 or 6-group $115* *Payment Options: Venmo or Cash* **Please RSVP to [Caitlynn](https://kalikwellnesswithin.org/) via** **email @ [kalik.wellnesswithin@gmail.com](mailto:kalik.wellnesswithin@gmail.com)** **text @ ‪(614) 407-4021‬** 💫

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **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

Join us at Unity of Columbus for our Weekly Reiki Share, a peaceful and uplifting gathering for connection, healing, and growth. A Reiki Share is a time where Reiki practitioners and students come together to give and receive healing energy in a supportive and welcoming environment. These sessions will be moderated by Columbus Unity Reiki. Reiki is a hands-on energy healing method from Japan that first came to the United States in 1938. Since then, it has grown in popularity and is now widely practiced throughout the West. All levels are welcome, and you do not need to be a practitioner at Unity of Columbus to attend. If you are a Reiki practitioner, a Reiki student, or simply interested in becoming a Reiki student, we warmly invite you to join us. Come practice your healing techniques, learn new approaches, receive healing energy, and connect with a like-minded community in a space of relaxation, renewal, and positive energy.

**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: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. 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

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 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 speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9