Graph Theory

Join us for the **Berlin DevOps Summer Meetup**: our last edition before the summer break! We're excited to be hosted by **Parloa** for an evening of interesting talks, discussions, and networking. There will be food and drinks provided, and plenty of time to connect with fellow DevOps enthusiasts. **📌 Please register at least 24 hours before the event.** We need to share the attendee list with the Parloa office in advance, and **spots are limited**. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Agenda** 18:30 Open Doors, Networking with Food and Drinks 19:00 Welcome words by Parloa and BLN DevOps team 19:25 **Running K8s with AI: Automating** **the SRE Lifecycle with Grafana MCP and GitLab** 19:50 **The Pipeline Was Green — AI Agents and CI Trust** 20:15 Short Break 20:30 **Managing Uninvited Guests: Securing Open Source Dependencies** 20:55 Networking 21:30 Closing ➡️ Interested in hosting an event? Fill out our [Call for Hosts](https://docs.google.com/forms/d/e/1FAIpQLScBpga8Yp-QAQt2lGskZWOThaKyQ_MbMbZaNcklgeXxqr5Vrg/viewform?usp=sf_link) and let's set up a meeting. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- *Christoph Ebeling* **Running K8s with AI: Automating** **the SRE Lifecycle with Grafana MCP and GitLab** What does it look like to run 30+ microservices, 8 databases, and a Kafka cluster almost entirely through AI agents? This talk walks through a practical demo of automating the full SRE lifecycle: from incident investigation to deployment validation, using Grafana MCP and the GitLab Agent Platform, and where humans still need to stay in the loop. *Serhii Vasylenko* **The Pipeline Was Green — AI Agents and CI Trust** We’ve spent years building CI/CD pipelines that tell us when code is "technically correct," but are they capable of telling an autonomous AI agent if a change is safe to apply? This talk explores a real-world incident where an AI-powered automation -- pairing Renovate with Claude Code -- successfully executed a "green" pipeline that broke a critical QA cluster for three days, how the team reacted, and how we evolved our vision toward the future of human-agentic collaboration with code. *Frithjof Hoffmann* **Managing Uninvited Guests: Securing Open Source Dependencies** Open source software is the ultimate neighborhood party, but what happens when an uninvited guest slips through the door? This talk digs into the messy reality of dependency hell and its role in software supply chain security: from typosquatting attacks to maintainer account takeovers, and the abandoned projects with known CVEs quietly living in your codebase rent-free.

You were hired by Spaniard Captain de Ordaz (who's accompanied by the somewhat creepy Mother Iris) to learn about the fate of a previous expedition and recover its treasures. After getting stranded on a British controlled island, you acquired a sloop you set sail for St Martin's and have recovered both halves of the treasure map. This is an ongoing campaign but we have space for 1 or 2 folks to drop in either just for this session or perhaps for more. Diverse group, laughs over maths, beginner friendly. Check [our Discord](https://discord.gg/G89xuyCwS) for questions.

📆 Agenda * 19:00 Welcome to the PUB (Python Users Berlin) – setting up * 19:15 Main talk * 20:00 Lightning talks * 20:30 Social gathering 🎙 Main talk by [Sam Bail](https://www.meetup.com/de-DE/members/57634242/): PySpark PySpark is a powerful library that brings Apache Spark’s distributed computing capabilities to Python, making it a key tool for processing large-scale data efficiently. In this talk, data engineer and analyst Sam Bail provides a structured and hands-on introduction to PySpark, starting with an overview of Apache Spark, its architecture, and its ecosystem, such as Databricks. Learn about Spark’s core concepts, such as the DataFrame API, transformations, lazy evaluations, and actions, before setting up a lab environment and working with a real dataset. Plus, gain insights into how PySpark fits into a broader data engineering ecosystem and best practices on running PySpark in a production environment. 👩‍💻 About [Sam Bail](https://www.meetup.com/de-DE/members/57634242/) Data engineer and engineering leader with 10+ years building platforms and teams across healthcare, marketplaces, and data infrastructure at NYC tech startups. I teach data engineering courses on LinkedIn Learning and O’Reilly, focused on making complex topics accessible to everyone. I also founded Bright Nights Social, an alcohol-free nightlife community that’s produced 100+ events across NYC. You’ll probably find me on a dance floor or running around Berlin this summer (training for the Berlin marathon). 📚 Resources * [Apache Spark](https://spark.apache.org/) * [PySpark](https://spark.apache.org/docs/latest/api/python/index.html) * [PySpark DataFrame API](https://spark.apache.org/docs/latest/api/python/getting_started/quickstart_df.html) ⚡️ Lightning talks We would like you to give a lightning talk (shorter than 10 minutes) about what you are doing with Python. 📍This will be a face-to-face meeting.

Drunk driving is not cool, but drunk writing is! This is a community event for writers, with drinks! Work on your own projects or use the creative writing prompts provided. Join us at Peppi Guggenheim, where we will have focused 20 minute writing sprints, with breaks in between. Peppi Guggenheim is at Weichselstraße 7, 12043, Berlin.

\*\*\*DEUTSCHE VERSION UNTEN STEHEND\*\*\* 🌟 Calling all Soulful and Energetic Voices that wanna tell stories! 🌟 Hey there, vibrant souls! 🎤 Are you ready to ignite the stage with your youthful energy and passion for music? Join our electrifying urban pop & musical ensemble, where voices come together in a celebration of song and joy! 🎶 Picture this: a dynamic fusion of historic and contemporary pop, musical hits, and soulful melodies, all brought to life by voices bursting with youthful exuberance! 🎵If you're between 15 and 45 and crave the thrill of harmonizing with fellow music lovers, this is your golden ticket! 🌈 Rehearse with us every Thursday from 7:30-10 pm in the heart of Kreuzberg, and experience the sheer exhilaration of making music with kindred spirits! 💃🕺 So, what are you waiting for? We're on the lookout for singers who bring their prior solo and ensemble experience to the mix – voices that stand out and harmonize seamlessly with the sound of the ensemble. 🌟 Are you ready to add your voice to our chorus of excitement? Send us a private message expressing your interest, vocal range, and any singing experience you bring to the table. Let's turn up the volume on fun and create memorable musical moments together! 🎉 🎶 **Day doesn't fit, too little singing experience, or not in the required age group? No problem!** I conduct several choirs with different profiles: **Shabach! *– the choir not only for shy people*** (https://www.meetup.com/de-DE/shabach-berlin-the-choir-not-only-for-shy-people/) **DEUTSCHE VERISON:** Liebe Nachbarn, wir haben 2023 das neue urbane Pop- & Musical-Ensemble "SHOWTIME!" in Kreuzberg 61 ins Leben gerufen, Altersspanne ca. 15-45 Jahre, in englischer und deutscher Sprache. Wir singen Popsongs, Musicals, und Filmmusik. Das Level ist für Fortgeschrittene und die Sänger\*innen sollten über eine gewisse Gesangserfahrung verfügen. Der Chor probt **jeden Donnerstag von 19:30-22:00 Uhr im Gewölbekeller der Kapelle-am-Urban, Grimmstr. 10, Berlin-Kreuzberg.** Falls es Dich interessiert mitzumachen: Schreib mir bitte vorab Dein Interesse und Deine Stimmgruppe / Erfahrung kurz per Privatnachricht. Danke. **Keine Zeit an dem Tag, zu wenig Gesangserfahrung oder außerhalb der Altersgruppe? Kein Problem!** Ich leite Chöre mit verschiedenen Profilen: **Shabach! *– der Chor nicht nur für Schüchterne*** (https://www.meetup.com/de-DE/shabach-berlin-the-choir-not-only-for-shy-people/)

📢 WICHTIG 📢 Diesmal organisieren wir das Treffen draußen, im Tilla-Durieux-Park gegenüber The Playce in Potsdamer Platz. Wir sitzen auf dem Gras, wo der Boden flach ist. Wenn möglich bring bitte Picknickdecken mit.

Zur Aktionswoche gegen Einsamkeit des [Kompetenznetzwerks Einsamkeit ](https://kompetenznetz-einsamkeit.de/aktionswoche)veranstalten wir von [platoniq.health](https://www.platoniq.health/de) ein kostenloses und unverbindliches Walk & Talk Format. Begleitet von kleinen wissenschaftlichen Einblicken und psychologischen Impulsen spazieren wir gemeinsam im Treptower Park und tauschen uns über das Thema Freundschaft und Einsamkeit aus. Eingeladen sind alle, die sich für das Thema soziale Beziehungen interessieren.

**If the event is fully booked, feel free to join us at the meeting point.** A participatory urban walk exploring memory, monuments, architecture, and hidden narratives in public space through observation, storytelling, and photography. We will move slowly along Karl-Marx-Allee, treating the city as a layered archive of perception. Through guided observation exercises and short reflective prompts, participants are invited to explore how urban space is read through personal experience, collective memory, and everyday traces. This is not a tour, but a collective reading of the city. No prior experience required. **Materials:** smartphone, paper, pen, optional audio recording **Participation:** Participation by voluntary contribution (5–15 € suggested) **Meeting point:** Karl-Marx-Büste (https://de.wikipedia.org/wiki/Strausberger_Platz#Karl-Marx-B%C3%BCste), Berlin ([Strausberger Pl. 12, 10243 Berlin](https://maps.google.com/maps?vet=10CAAQoqAOahcKEwi4l8-__c-UAxUAAAAAHQAAAAAQJg..i&sca_esv=080e5c4976d32afe&pvq=OhUweDA6MHgzOWMxOWFkN2Y5ZDg2ZTY&fvr=1&cs=0&um=1&ie=UTF-8&fb=1&gl=de&sa=X&ftid=0x47a84e3e065a95dd:0x39c19ad7f9d86e6)) **Collective Archive (optional contribution):** Participants are invited to contribute to a shared archive of the walk: Upload here: https://padlet.com/denkmallab/Building_Stories_Memory_Walk_Contributions Contributions are voluntary and may include photos, notes, or audio fragments from the walk and are part of a collective open research experiment

Join us for our second hike of the summer! We will start by meeting at (or at least boarding) the **10.40 RE2 (3112)** at **Ostkreuz** station, **Platform 1**. We will arrive at Lübben (Spreewald) at 11.25. *Note that if you miss this train, then the next one does not arrive until 11.56, so you will certainly miss us and won't be able to catch up!* The hike will go from Lübben to Schlepzig, along the canals and lakes of the beautiful Spreewald region. *(See photos for a rough route -- this is not necessarily accurate!)* The walk will be about 15 km and take about 4-5 hours. Bring lunch, snacks & water, comfortable walking shoes, and maybe even some sunglasses. We will stop a couple of places along the way, but will not stop long enough to order food, so bring your lunch! At the end of the walk, in Schlepzig, there is a Whisky brewery and a Biergarten. We will visit one or both. You can also get food at both. Then, we will take the 18:57 bus back to the starting point of Lübben Bahnhof. From there, we will catch the 19.34 RE2 (3129) back to Ostkreuz, arriving at 20.23. *(If you really want to, and if we get to Schlepzig in time, then you can also take the 16.52 bus to Lübben, then the 17.34 RE2 back to Berlin.)* **Note: We will reschedule this if the weather is too rainy. So definitely check back here before going!**

Every first Friday of the month (except January), people from diverse disciplines and cultures meet to share experiences, business contacts and wine. **AGENDA**: 1. Boarding time: 18.00-18:30 2. Intro-Round 1-2 min p.p. and "Book of the month" 3. Pause 4. Part 1: The Owner Trap: How to finally Step Out of Your Own Business by Milap Singh 5. Pause 6. Diskussion-Round finish the wine and network \*\*\* **DETAILS**: From Founder-Dependent to System-Driven - A2 - Hour Workshop Sprint Is your business running you, instead of the other way around? If you are a founder or small business owner who can't take a week off without things falling apart - this session is for you. In just two hours, we'll use a hands-on Service Blueprint sprint to map how your business actually works, identify hidden bottlenecks and build a clear plan to run it without you in the loop for every decision. No slides. No theory. Just sticky notes, honest conversations and a map of your business you can immediate act on. This workshop is for you, if you are: A service-based business owner (agency, studio, salon, clinic, coach) with a small team A founder who feels like the business would stop if you stepped away for two weeks A startup operator ready to move from "figuring it out" to build repeatable systems. Facilitated by Milap - Founder of Aspire Digital Design Agency, UX Researcher & service Designer based in Berlin. Connect with Milap on Linkedin: https://www.linkedin.com/in/singhmilap \*\*\* All events are free of charge. Please bring Wine/Snacks instead

Event name: **The Nudes of Istanbul** — Photo Exhibition **Opening / Fotoausstellungseröffnung** Start: Fri, Jul 3 19:00 End: Fri, Jul 3 21:00 **Location:** Die Akt Galerie Krossener Str. 34 10245 Berlin Germany **Description:** ENGLISH The Nudes of Istanbul is a group exhibition and accompanying English-language photobook presenting a fourteen-year collective fine-art nude photography practice developed in Istanbul and brought into public view in Berlin. Curated by Berlin-based photographer and curator Burak Bulut Yıldırım, the project brings together 14 Turkish photographers selected from a sustained curator-directed studio practice in Istanbul. Five of the participating photographers are women. The accompanying book includes texts by three model-authors writing from inside the practice: Zeynep Renda, Su Yeşil and Marmelat. The works were made in Istanbul over the last fourteen years through real bodies, real light, constructed sets, physical materials, model presence and explicit consent. The exhibition is not presented as a general exhibition about Turkey, but as a public record of a long-term collective photographic practice from Istanbul. This Meetup is for the opening evening. **Opening:** Friday, 3 July 2026, 19:00 **Exhibition dates:** 3–19 July 2026 Regular gallery hours: Friday–Sunday, 15:00–19:00 **Venue**: Die Akt Galerie Krossener Str. 34 10245 Berlin **Admission**: **Free** Project page: [https://burakbulut.org/the-nudes-of-istanbul/](https://burakbulut.org/the-nudes-of-istanbul/) DEUTSCH The Nudes of Istanbul ist eine Gruppenausstellung mit begleitendem englischsprachigem Fotobuch über eine vierzehnjährige kollektive Praxis künstlerischer Aktfotografie aus Istanbul, die in Berlin öffentlich sichtbar wird. Kuratiert von dem in Berlin lebenden Fotografen und Kurator Burak Bulut Yıldırım, bringt das Projekt 14 türkische Fotografinnen und Fotografen zusammen, die aus einer langfristigen, kuratorisch geleiteten Studiopraxis in Istanbul ausgewählt wurden. Fünf der teilnehmenden Fotograf*innen sind Frauen. Das begleitende Buch enthält Texte von drei Modell-Autor*innen: Zeynep Renda, Su Yeşil und Marmelat. Die Arbeiten entstanden in den vergangenen vierzehn Jahren in Istanbul: mit realen Körpern, realem Licht, konstruierten Sets, physischen Materialien, Modellpräsenz und klarer Einwilligung. Die Ausstellung versteht sich nicht als allgemeine Ausstellung über die Türkei, sondern als öffentlicher Einblick in eine langfristige kollektive fotografische Praxis aus Istanbul. Dieses Meetup bezieht sich auf den Eröffnungsabend. **Eröffnung**: Freitag, 3. Juli 2026, 19:00 Uhr **Ausstellungsdauer**: 3.–19. Juli 2026 Reguläre Öffnungszeiten: Freitag bis Sonntag, 15:00–19:00 Uhr **Ort**: Die Akt Galerie Krossener Str. 34 10245 Berlin **Eintritt**: **frei** Projektseite: [https://burakbulut.org/the-nudes-of-istanbul/](https://burakbulut.org/the-nudes-of-istanbul/)

This week we are discussing **Tove Ditlevsen:** Childhood, Youth, Dependency (The whole trilogy). We look forward to seeing you! If you have book suggestions, would like to vote on our next reads, or join us for additional activities, please ask someone at the meeting to add you to our WhatsApp group. Just a heads up: **The cafe only accepts card payments for amounts over €10**, so you may want to bring some cash for smaller orders. **Also, if you're unable to attend, please update your RSVP so that someone from the waiting list can take your spot.**

Meet, Match, MoveOn and Manage or Master Why Meet 1)Meet new People Culture Languages. 2)Not Match Romance, Political Views nor Religion, only Respect and Joy 3) Moveon, advance with your level, goals, and especially share and try Rotate the groups and let others participate a bit. 4) Master the challenges, and Manage to give a Like or appreciate the meetups!! **Thematic** or small Concept: Manage to Bring 2 German Friends and you get a Drink. if you bring your Ex Partner + 2 German friends =2 drinks = thats the Challenge and the Attitude of 2026

You can sleep in on the Sesquicentennial (observed), we’re shifting to the following Friday. But join the local UX community for a chat and some biscuits to catch up. If you were in CA for Figma Config, tell us all the lines and you can tell me how I can animate an SVG without coding it by hand, and why I’d even want to. Thanks to the team at Nationwide of supporting the group.

This presentation will be by Ben Iten, humanist chaplain and HCCO Board Member. Speaking on expressing Humanism values in American democracy. This meetings will be hybrid. You can meet us in-person or attend online. The formal presentation will start at noon. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC)

**Don’t miss your opportunity to learn from a duo with over 16 years of experience combined. During this demonstration event, you can expect to learn how to direct and guide your creative vision through lighting and communication to your model. We guarantee you will leave this event feeling more confident to try new lighting set ups to match up with your anticipated outcome. Finding the right way to express your vision is key to getting your model to pose accordingly, so we got you there too! To take this even further, think about signing up for a tutorial spot following the demonstration.** ***Note: this is a demonstration event only, you will not shoot your own images. However, if you bring your camera we can test it for compatibility with the studio lights.*** **Following the demonstration will be a tutorial/coaching event - sign up separately if you are interested at** https://calendar.app.google/ZcHb4CQB2rrV3U7j9 **Save and book both for $199 (discounted from $215; the discount will be applied on the Tutorial invoice).**

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/azure-cbus-2026/

Let’s meet and discuss John Updike's Rabbit, Run, the first in his series of four novels following the life, hopes, and disappointments of former local basketball star, Harry "Rabbit" Angstrom, as he fitfully confronts and evades adulthood.