Unix

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)

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

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!

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/).

Come along, grab a coffee, shut up, and write! We will do at least two sessions of each 45 minutes of writing and two breaks. We will start the first writing session at 10:45. For space reasons we only allow a limited number of attendees, so please update your RSVP if you can't come. We'll probably be grouped around the large table in the back room's center. In the summer, also outside. 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.

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.

**PLEASE ALWAYS CHECK THEIR REPECTIVE WEBSITES! Sometimes they cancel events and you don't want to go there for nothing.** This Contact Jam happens every friday. Entry is 4€ depending if there is live music. https://a248.e.akamai.net/secure.meetupstatic.com/photos/event/7/5/1/7/600_455309975.jpeg It's a nice longish room with a dance floor. There is live music on every 1st, 3rd & 5th friday. And a silent jam on every 2nd & 4th friday. Their Homepage (http://www.phynixtanzt.de/m_einstieg.html#freitags)

**DEEP TALKS - Reality, Humanity, and the Universe in Conversation** *\*\*\* english below \*\*\** Eine inspirierende Gesprächsrunde für Menschen, die sich gerne über Themen wie z.B. Sinn, Hoffnung, Wahrheit und unsere Verbindung zum Universum austauschen. Ein offener Gesprächsraum für Menschen, die ihre Lebenserfahrungen im spirituellen Kontext miteinander teilen möchten. Wir bleiben nah am eigenen Erleben und sprechen über das, was uns im Leben bewegt – Erlebnisse, Erfahrungen, Zweifel, Erkenntnisse, Wandlungsprozesse. In einer offenen, akzeptierenden und respektvollen Atmosphäre nehmen wir uns Zeit zum Zuhören, Nachdenken und Teilen von Gedanken. **Was dich erwartet:** – Eine herzliche und offene Gesprächsrunde – Raum für Austausch – Neue Perspektiven und interessante Begegnungen – ***Ein Thema zum gemeinsamen Reflektieren:*** *\* wird zwei Tage im Voraus bekannt gegeben \** \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* A relaxed and inspiring conversation space for people who enjoy exploring topics like meaning, hope, truth, and our connection to the universe. This is an open space for sharing life experiences from a more reflective or spiritual perspective. We keep things close to our own lived experience and talk about what truly moves us — moments, challenges, doubts, insights, and personal transformations. In an open, welcoming, and respectful atmosphere, we take time to listen, reflect, and share our thoughts. ### What to expect: – A warm and open group conversation – Space for meaningful exchange – New perspectives and interesting encounters – **A theme to reflect on together:** *\* Each evening's theme will be announced two days in advance \** **WhatsApp Group** Diese Gruppe ist freiwillig und richtet sich vor allem an diejenigen, die auch zwischen den Veranstaltungen in Kontakt bleiben möchten. This group is optional and mainly for for those, who would like to stay connected between the events. https://chat.whatsapp.com/JlatR9pCOiQCFSZ4mma5Lv?mode=gi_t

Come along, grab a coffee, shut up, and write! We will do at least two sessions of each 45 minutes of writing and two breaks. We will start the first writing session at 11:15. **For space reasons, we are limited to a certain number of attendees, so please update your RSVP if you can't come**. We often have a large waiting list, and not updating your RSVP or not showing up if you do RSVP yes means that others miss out. We also ask that if you do change your RSVP, do it with reasonable notice. Thanks! We typically take over all of the cafe, but try to share tables if you can to allow space for other customers. 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/).

**BitDevs Bitcoin Socratic Seminar Berlin @ c-base Raumstation** Join us for our monthly interactive **[Bitcoin Socratic Seminar](https://bitdevs.berlin)** in Berlin! We’ll start with pizza and beer (sponsored by [Ordimint.com](https://ordimint.com)), followed by deep-dive discussions on the most interesting *technical* developments in Bitcoin from the past month. Participation by everyone is highly encouraged! Our goal is to foster lively discussion, knowledge sharing, and debate. In the weeks leading up to the event, participants gather topics such as: * New research papers * New BIPs and BOLTs * Network statistics * Technical blog posts * Mailing list and Delving Bitcoin threads * Pull requests and updates from key repos (Bitcoin Core, LND, Core Lightning, Eclair, BDK, rust-bitcoin, LDK, Electrum, …) Each topic is briefly introduced by our moderators and then discussed before moving on. The full list of links will be published at [bitdevs.berlin](https://bitdevs.berlin) 1–2 days before the event — please review them in advance to get the most out of the discussion. **Important details:** * This event is highly technical — best suited for those with a solid grasp of Bitcoin internals. Curious newcomers are always very welcome, but expect in-depth conversations (see the former topics at [bitdevs.berlin](https://bitdevs.berlin)). * Chatham House Rule applies: you may share what was discussed, but not who said it. No livestream, no photos, no recordings. * The evening begins with food and networking; people often stay after the seminar to keep talking. **Co-hosted by:** * [Felix](https://x.com/FelixWeis) * [Freerk](https://x.com/freerko) * [Fabian](https://x.com/fjahr) For background on the idea of BitDevs Socratic Seminars, see [this article](https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-a-local-socratic-seminar).

🎟️ **[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)** 🎟️

If you are navigating life with both being a person of color and being neurodivergent—this sharing circle is for you. **Details** 📅 Wednesday, 8th of April 2026 🕕 18:30 - 20:30 📍 Meeting Room in BIW\*oC Rising https://maps.app.goo.gl/Y6wTvMXV4rCUkgzP8 🎟️ Free but a donation for the space is highly appreciated. **Community disclaimer:** This circle is organized entirely by neurodivergent volunteers who contribute their time, energy, and resources to create this space. They deserve patience and kindness. **What happens here** * We gather. We share. We listen. * Stimming, fidgeting, moving around, stepping out for a break, is always welcome. * For this first event, we will try to open with a round of introductions. If you feel called to, you can share three words that represent your neurodivergent and BIPOC life. * There is no pressure to share if you can't think of any or would rather just pass. * After we hear the words, we can see what themes emerge and let the conversation flow from there. * The format of this event can be changed and discussed the further we go with this sharing circle. **This space is for you if:** * You're a person of color—Black, Indigenous, Latinx, Asian, Pacific Islander, Middle Eastern, mixed-race, or any marginalized racial or ethnic identity. * You're neurodivergent—diagnosed, self-identified, questioning, or just know your brain works differently: ADHD, autistic, dyslexic, AuDHD, or any other neurotype. **Community Agreements** * **This is a space to heal, not to harm.** Experiencing racism is painful and real. That pain is welcome here. However, this is not a space to express sexist, misogynistic, homophobic, transphobic, ableist, colorist, or any other discriminatory attitudes toward any person or group—regardless of their identity. We all carry wounds. But those wounds do not give us permission to wound others. * **Confidentiality:** What is shared in the circle stays in the circle. This helps us build trust. * **No Fixing:** This is a space for sharing experiences, not for giving unsolicited advice, diagnosing others, or trying to "fix" someone. We are here to witness and support, not to problem-solve. * **Content Warnings:** If you plan to share something that involves heavy topics like trauma, self-harm, or graphic discrimination, please give a brief warning before you start (e.g., "I'd like to share something about a difficult experience..."). This allows others to gently step out or prepare themselves. * **Respect the Space:** Please be mindful and respectful of the venue that hosts us. **About the Space Hosting Us** "BIWOC\* Rising is a Berlin-based intersectional organization for Black, Indigenous, and Women\* of Color, as well as trans, intersex, and non-binary people of color. It provides a safer workspace, socal club, networking opportunities, and its current project, EquiNet, which offers workshops and events to support members’ social, professional, and economic empowerment. The organization aims to build community, challenge systemic discrimination, and strengthen opportunities for marginalized groups through inclusive spaces." **Learn more about BIWOC\* Rising**: https://biwoc-rising.org/ **We can't wait to share space with you.**

Hola chicos, Moin zusammen, lasst uns Deutsch und Spanisch sprechen und ein paar Bier zusammen trinken, die Idee ist einfach und gut :) Bitte bringt zumindest basis Deutsch oder Spanisch Kenntnisse mit! Vamos a hablar español y alemán y tomar unas cervezas, la idea es simple y buena jaja. ¡Por favor, ven por lo menos con un nivel básico de español o alemán! Danke, gracias!

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.

At Unity of Columbus, our Youth and Family Ministry nurtures the spiritual growth of children and families through love, joy, and practical spiritual teachings. Each Sunday, children explore timeless spiritual principles through stories, creative activities, music, and group sharing in a safe and welcoming environment. Our program encourages children to discover their own inner light, express kindness, and develop a personal connection with God. Together, we celebrate diversity, cultivate understanding, and inspire each child to live with purpose and compassion. Parents and families are invited to join in this uplifting journey of learning, laughter, and spiritual connection.

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/

Join us every 3rd Sunday of the month right after the Sunday Service for our Potluck Fellowship — a warm and welcoming time to connect, share, and celebrate community together! Bring your favorite dish to share (homemade or store-bought — all are welcome) and enjoy a delicious meal with friends old and new. It’s a wonderful opportunity to relax, laugh, and deepen your connections. Come hungry for good food, uplifting conversation, and heartfelt fellowship!

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!

**Men of Unity** is a safe, welcoming space for men to connect, share, and grow together. In this circle, we explore what it means to live with purpose, integrity, and spiritual awareness in today’s world. Through open dialogue, reflection, and mutual support, we learn to balance strength with compassion, confidence with humility, and action with mindfulness. Whether you’re seeking deeper spiritual connection, personal clarity, or simply a supportive brotherhood, this group invites you to bring your authentic self and grow in community. Each gathering may include: * Open discussion on real-life challenges and victories * Guided reflection, prayer, or meditation * Encouragement for living from truth, not fear * Tools for emotional and spiritual growth No preaching. No pressure. Just real men, real conversations, and real transformation.

**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