Bitbucket

**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).

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/.

Join the Minotaurs Men's Basketball Team on Wednesday at 8pm at an indoor basketball court in Neukolln. We currently have two teams, one in Bezirkliga and one in FBL. We are looking for new players to add to the teams so come by to play together and meet. Please send a message to the event organizer if you are interested in coming.

**Demo Drop** 🔊 **@ Bohnengold --** We'll be hosting a longer, more relaxed session this week. Come and share a demo that you're currently working on or share a completed track with our community and get feedback in a friendly and supportive setting. Or just come and socialise and listen to the latest works from other producers. You can register to share some music here: https://forms.gle/xaF7sPBNpjAVPeY98 Note: * IF YOU'RE SHARING MUSIC, YOU MUST CHECK IN WITH THE HOSTS WHEN YOU ARRIVE TO CONFIRM YOUR SIGN UP! * Due to time limitations, we might not be able to play all tracks. * Long tracks will be faded out at 5 minutes **Agenda:** 7pm - Arrive, socialise and network 7:30 - Begin the Demo Drop sharing session 10/11pm - Bohnengold DJ sets to follow We’re very excited to host another event at **Bohnengold**. They have an amazing club space with a fantastic sound system. We will be running a longer event this week until Bohnengold DJs come on at 11pm. Note: Bohnen Gold will be opening an hour early for our event so any drinks purchased will help cover the extra staffing costs for the venue. This is a free event for our community. It is open to producers of all genres, skill levels, and backgrounds. Whether you’re an experienced producer or just starting out, it’s a welcoming space to connect with others, exchange ideas, and find inspiration. All genders, ages, genres, and DAWs are welcome. Invite friends or collaborators if you like, and help us continue building Berlin’s vibrant community of music producers. We look forward to seeing you there. Stay connected: Telegram group: [https://t.me/musicproducersberlin](https://t.me/musicproducersberlin) Instagram: [@musicproducersberlin](https://www.instagram.com/musicproducersberlin/)

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!

## DNA. presents: "CREATIVE WRITING & WINE" \- A space where creativity flows and every sip inspires\. Settle into Your Wednesday evening with a glass of wine in hand and step into a cozy, inspiring atmosphere made for sharing stories, listening deeply, and letting Your own voice come alive. Our storytelling and poetry evenings are open to everyone — whether You're just beginning to explore spoken word or You’ve been writing for years. No pressure, just presence. ##### *With gentle, uplifting prompts and space to express Yourself, You’ll create, share, or simply enjoy the power of words in a warm, welcoming circle.* Whether You’re planning a soulful midweek date, coming alone to unwind, or meeting friends for something different, this is Your moment to connect, reflect, and celebrate the beauty of language. ##### *Each gathering offers something new: fresh themes, meaningful conversations, unexpected moments of truth, and a community that listens with its whole heart.* ##### ‍ See Us Soon :) Love. Garen & DNA. *** ‍ For more insights, follow us on IG: [@nightart.club](https://www.instagram.com/nightart.club) \*Members of Dair Night Art e.V. and Subscribers of DNA. Art GbR.

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.

Welcome to our cosy Godot Engine Community Meetup A Maze Edition! 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! 🦜 This is an open event and we will hang out at c-base afterwards, so it is fine to come late. 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/)! 🕊️

Please contact me on WhatsApp if you’d like to join our group, as this group will soon be deleted from Meetup. 017684589930 Thanks, Marco We play every Sunday—year-round—and are looking for a few players who are willing to join regularly. Average age is around 27-50. We play on grass using poles as goals, which allows us to adjust the field and goal size depending on the number of players. Please arrive on time, as we need to divide the teams. Game starts 11:30 sharp. Wir spielen jeden Sonntag - ganzjährig - und suchen nach ein paar Spielern, die sich vorstellen können, regelmäßig dazuzukommen. Alter im Schnitt ca. 27-50. Wir spielen auf Rasen mit Stangen als Toren, wodurch wir die Platz- und Torgrösse flexibel a die Anzahl der Spieler anpassen können. Bitte pünktlich da sein, weil wir die Mannschaften aufteilen müssen. Das Spiel beginnt pünktlich um 11:30 Uhr.

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

**Upcycling Workshop with Palettes ♻️** **Build. Transform. Reimagine.** 📍 Berlin \| May 14\, 2026 Let’s transform waste—together. Hosted by **OK Labs (Onaranlar Kulübü)** in collaboration with Engelnest. Join us for a collaborative, hands-on upcycling workshop where discarded pallets are turned into functional furniture and ideas become real, physical designs. This is more than just a workshop. It’s a collective act of making, thinking, and creating together. *** **What to expect** * Design and build furniture from pallets * Work collaboratively in small teams * Learn by doing — hands-on, experimental process * Be part of a creative, open-minded community *** **Who can join?** Makers, designers, and curious minds. No experience needed — just bring your motivation to build and collaborate. If you enjoy working with your hands, thinking creatively, and being part of a team, you’ll fit right in. *** **Workshop Program** This one-day co-creation workshop brings together makers, designers, and curious minds to explore ideas, experiment with materials, and turn concepts into tangible outcomes through a hands-on, collaborative process. 10:00 – 10:15 Welcome & Introductions 10:15 – 10:30 Concept Framing & Workshop Brief 10:30 – 10:45 Space & Material Walkthrough, Team Formation 10:45 – 12:30 Design Sprint – Phase 1 (Ideation, concept development, and production planning) 12:30 – 13:30 Break 13:30 – 15:30 Design Sprint – Phase 2 (Concept refinement and start of prototyping) 15:30 – 17:15 Build & Production Phase (Fabrication and final iterations) 17:15 – 17:45 Showcase & Presentations (Project presentations and outcomes) 17:45 – 18:00 Reflection & Closing *** 🗣 **Language:** English 📍 **Location:** Engelnest Coworking Space, Berlin 🗓 **Date:** May 14 — Design & Production Workshop ✨ **Limited spots available** \*\*\* The workshop is free of charge and includes catering; if you have any specific dietary requirements, please kindly share them with the organizing team in advance. \*\*\* If you have any questions, feel free to drop us a line at ufuk@oklabs.co

Offene Bühne ! Jeden 2. donnerstag im Monat. Alle Arten von Darbietungen sind willkommen. Es gibt 2 Mikrofone, eine Sound-Anlage, ein Klavier und verschiedene kleine Percussion-Instrumente. Der Eintritt ist frei, Spenden sind gern gesehen. Auch Getränke gibt es auf Spendenbasis! Wir freuen uns auf euch Künstler und Publikum !

Hi, dieses Mal besprechen wir „Abhängigkeit“ von Tove Ditlevsen (1971), den dritten Teil ihrer Kopenhagen-Trilogie. Hier der Link zum Inhalt und Buch : https://www.aufbau-verlage.de/aufbau/abhangigkeit/978-3-351-03870-0 Wir treffen uns diesmal im Café Nest im Wrangelkiez. :)

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

This meetup is a beginner-friendly session introducing version control for Unity projects, with a look at three common tools: Git, Perforce, and Unity Version Control. The goal is to help you understand what version control is, why it matters for Unity development, and what options are out there. The format will likely be presentation-style, with live demos and time for questions throughout. You'll see each tool in action and learn how they fit into a Unity workflow. What to Expect: * An introduction to version control and why it's essential for Unity projects * An overview of Git, Perforce, and Unity Version Control * Demos of each tool in a Unity workflow * Tips for getting started * No prior version control experience required * Resources for continued learning All experience levels are welcome. Whether you're new to version control or already using one of these tools, this session will help you understand what each one offers. Food and drinks provided. Join us to learn more about version control options for Unity.

**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

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!

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