Technology

**Treffpunkt:** w3.hub, Möckernstrasse 120, 10963 Berlin 2\. OG\, hinterer Bereich **Unsere Eventreihe hat die Themen:** Die folgenden Workshops sind immer kostenlos und auf die gesamte Eventreihe verteilt. Wir werden es dir auch ermöglichen, dass du zu jedem Zeitpunkt in die Eventreihe einfach einsteigen kannst. Die Eventreihe endet mit dem letzten Termin, aber sie wird danach sofort von vorn beginnen und wir werden das Datum der Events dann anpassen. * 04.05.: Was ist Bitcoin eigentlich? * 18.05.: Workshop: Bitcoin senden und empfangen * 01.06.: Workshop: Bitcoin/ Bitcoin Passwort (Seed) sicher aufbewahren * 15.06.: Wo man Bitcoin kaufen könnte und auf was man achten sollte * 29.06.: Workshop: Bitcoin in Sekunden versenden (Lightning) * 13.07.: Bitcoin vererben * 27.07.: Warum nur Bitcoin - nicht Crypto * 10.08.: Workshop: Bitcoin spielerisch verstehen **Kontakt zu BBW:** * Telegram: https://t.me/+8nEA93930qowODky * Nostr: Bitcoin Beginner Workshops / npub1qtc6zmhaq6svkuny3r5h3n6wxel5cyzmwz7haygans36ee60l7vqgk2sxp **Anmeldungen:** Diese sind nicht erforderlich. Sollte es zu voll werden, werden wir aber Personen mit einer Anmeldungsbestätigung Vorrang geben. Teilt uns in eurer Anmeldung lediglich die Anzahl der Personen mit - keine weiteren Infos erforderlich: * meetup.com * Email: bbw@bitcoinexplained.de * Telegram: https://t.me/+8nEA93930qowODky * oder mündliche Absprache mit den Organisatoren für Folgeevents **Video** Dieses Event wird nicht aufgezeichnet und auch nicht irgendwo danach online verfügbar sein. **Privatsphäre** Die Teilnahme bei diesem Event verpflichtet dazu, dass die Privatsphäre von allen Personen gewahrt wird. Es dürfen keine Aufnahmen jeglicher Art gemacht oder verbreitet werden, wenn Personen dabei erkenntlich sind. Das bezieht sich auf das Event ansich, die Zeit davor und danach.

**📢 WICHTIG** 📢 Diesmal treffen wir uns in einem neuen Ort: KALLE HALLE Markthalle in Neukölln. Wir werden an den langen Tischen in der Mitte des Saales sitzen. Wir bitten euch um eure Mithilfe, indem ihr ein Getränk oder ein Gericht bei den Restaurants bestellt. Vielen Dank.

Join us for a relaxed Monday evening full of new faces, unexpected conversations and the kind of atmosphere that makes the week feel a little more alive. Whether you’re new in Berlin or simply looking to meet open-minded people, this is a space to connect, share stories and start the week with a little more curiosity. Orga The location accepts only card payments. We will be sitting in the first room. Questions? Check our Meetup-FAQs: [https://socialbutterfly.berlin/meetup-faq/](https://socialbutterfly.berlin/meetup-faq/) Meet your host I’m Julia — a Berlin local who loves bringing people together. My path went from growing up in a dance school to studying philosophy to working in IT support, and somehow all of that led me here: hosting meetups and creating spaces where people can show up, relax, and connect. Insta [https://www.instagram.com/juwaberlin/](https://www.instagram.com/juwaberlin/) LinkedIn [https://www.linkedin.com/in/julia-waehnert/](https://www.linkedin.com/in/julia-waehnert/) About The Social Butterfly Club 🦋 is a Berlin-based community that has been bringing people together for over three years. Each gathering is part of a larger framework designed to help friendships grow through shared experiences in the city — with a long-term vision of turning Berlin itself into a shared, playful experience. Love the vibe? There’s a whole community waiting for you. 🦋 Join the Social Butterfly Club and experience Berlin together [https://socialbutterflyradar.substack.com/](https://socialbutterflyradar.substack.com/)

Join us for a creative gathering for neurodivergent people, including those with autism, ADHD, AuDHD, dyslexia, and similar neurodivergences. This meetup is a chance to make friends, chat, and enjoy arts and crafts with other neurodivergent individuals. **Activities include:** * Clay work * Abstract painting * Finger painting * Creative journaling * Doodling and more Each session offers different activities, with some focused on one project and others on exploring multiple creative outlets. We will provide some arts and crafts equipments but feel free to bring your own arts and craft tools if you want to do your own project. **The event is free and there will be no donation box at the event, but your support is very much welcomed Donation Link: [Ko-fi](https://ko-fi.com/neurodivergentberlin)** **Where:** PopUp Gruppenraum 2 at Amerika Gedenkbibliothek **Facilitators:** Agnieszka Błaszczak (Aga), a multimedia artist, and Sheila (along with other occasional facilitators). **Important Notes:** * If you can’t attend, please edit your RSVP to give the spot to others people. * The community is run by neurodivergent volunteers, so please help us create a positive experience. * Bring sensory tools (headphones, stimming toys, etc.), and we will have some available. * A quiet corner will be provided for breaks. * This event is for late-diagnosed adults (18+). For children’s events, a parent or guardian must be present. See you there!

Looking for a fun, energizing way to move your body and meet new people? Join us for a Silent Disco Hip Hop Dance Workout a unique experience that combines music, movement, and connection 🎧💃 ✨ What to expect: • Fun icebreaker games to get to know each other • A full-body Hip Hop dance workout (beginner-friendly) • Learn cool dance move with silent disco experience • Spark Connections over a fun time We’ll kick things off with fun, easy icebreaker games to get to know each other. Then enjoy a 1-hour guided silent disco dance workout (with your own Bluetooth headphones) with dance music and simple moves. No experience needed! Come solo or with a friend, you’ll leave feeling energized, uplifted, and connected 💫 👉 Join the WhatsApp group to connect before the event: https://chat.whatsapp.com/GaUmXBIg1oy4BtYgxuxEsu?mode=gi_t 📸 Check our vibes on Instagram: https://www.instagram.com/sparkevents_510

This is a board game night for you to meet up and play in a relaxed and respectful environment. The event is exclusively for people who identify as FLINTA\* (women, lesbians, intersex, non-binary, trans and agender). We play casual and family games as well as strategy games and heavy euros. **General information** Come alone or bring your friends. There will be some games and snacks on site, but you’re also welcome to bring your own. We’re especially happy to welcome people who enjoy explaining rules. Board game designers are warmly invited to bring prototypes! Dogs are only allowed in exceptional cases and with prior approval from the organizing team. Please read and respect our code of conduct. We speak both German and English. Free entry – donations (1 to 5 €) welcome. All information and our code of conduct: https://flintastisch.de/flinta-spieletreff-berlin/ **Accessibility details** The venue is wheelchair accessible and suitable for people with limited mobility. Unfortunately, the toilet is not accessible. If you require a support person due to a disability, but your companion is not FLINTA\*, please contact us in advance at mail@flintastisch.de The same applies if you would like to bring an interpreter. Companion, support, and assistance dogs are welcome. Please let us know in advance at mail@flintastisch.de

We are excited to feature **Georgia Channing**, who is currently leading the AI for Science team at **Hugging Face** and will discuss "**When Silicon Meets Carbon: Bringing Synthetic Biology to Life**", lasting approximately 45 minutes. After the talk, seize the opportunity to connect with fellow AI enthusiasts to share ideas and questions while enjoying free drinks and pizza. **Door close by 7.15pm, so please come early! Also, "attend"ing (RSVP) here on Meetup is strictly necessary to be guaranteed entry.** Please note that Meetup has recently been quite keen on promoting its Plus program. However, you are not obligated to purchase it, as both our events and the platform remain free. **Who is this event for?** This event is open to everyone interested in state-of-the-art AI research. We especially design it for students, PhD candidates, academic researchers, and industry professionals with a research focus in machine learning. **Abstract**: TBA **Bio**: TBA We are [BLISS](https://bliss.berlin/) e.V., the **AI** **organization** in Berlin that **connects like-minded individuals** who share great interest and passion for the field of machine learning. This summer 2026, we will, again, host an exciting speaker series on site in Berlin, featuring excellent researchers from cohere, ETH Zürich, University of Oxford, HuggingFace, and Stanford University. Website: [https://bliss.berlin](https://bliss.berlin/) Youtube: [https://www.youtube.com/@bliss.ev.berlin](https://www.youtube.com/@bliss.ev.berlin) Disclaimer: By attending this event you agree to be photographed.

**⚠️ IMPORTANT: REGISTRATION MANDATORY ⚠️** Registration on **Luma** is **REQUIRED** to attend this event. **Link: https://luma.com/7zfk3orp?utm_source=meetup** Your registration is subject to host approval. You must complete the registration process on lu.ma to receive the full event location details and confirmation of your attendance. **Please note: Without approved registration on Luma, you will NOT be able to access the event location or attend.** We are excited to host a **BLISS x juna.ai workshop** featuring **Dr. Nima Siboni (senior RL Engineer)**, who will guide us through an interactive session on algorithm discovery with LLMs. **​​​ Title: The Heuristic Scientist: Open-Ended Algorithm Discovery with LLMs** **📅 Date: 03.06.2026** **🕕 Time: 18:00** 📍 Location: TU Berlin Marchstrasse 23 [Room 0.011] ​​​The session will last around 2 hours, followed by a networking session with juna.ai and fellow AI enthusiasts (and free pizza!🍕). Bring your laptop! **​Abstract:** Large language models are increasingly useful not only for writing code, but for exploring the space of possible algorithms. In this hands-on workshop, we will look at how LLMs can act as “heuristic scientists”: generating candidate strategies, turning ideas into executable code, testing them against concrete objectives, and refining them through feedback. The workshop centers on the general discovery loop behind LLM-assisted heuristic generation. Participants will learn how to structure problems for algorithm discovery, prompt models to propose interpretable heuristics, evaluate those heuristics with simulations or benchmarks, and use the results to guide further search. We will also discuss when simple prompting is enough, when training or fine-tuning may help, and how to keep generated heuristics understandable, testable, and auditable. ​By the end of the session, participants will have built a small discovery loop of their own and will understand the practical trade-offs involved in using LLMs for open-ended algorithm discovery: creativity versus control, exploration versus verification, and automation versus human judgment. ​ **⚡ FINAL REMINDER ⚡** **You MUST register and be approved on Luma to attend. The event location will only be visible after your registration is confirmed by the host. Link: https://luma.com/7zfk3orp?utm_source=meetup** *** We are **BLISS e.V.**, Berlin’s AI community connecting like-minded individuals passionate about machine learning and data science. Our **BLISS Workshops** connect **students and young professionals with industry partners**, offering an inside look into **how machine learning is applied in real-world settings** \- from research and development to deployment\. ​ ​​​BLISS Website:[ https://bliss.berlin](https://bliss.berlin/?utm_source=luma) ​​​BLISS Youtube:[ https://www.youtube.com/@bliss.ev.berlin](https://www.youtube.com/@bliss.ev.berlin?utm_source=luma)

​This meetup is a social coding jam where we use AI to quickly turn fun ideas into functional apps. Whether you're an experienced developer or have never written a line of code, you'll fit right in. There will be **free alcohol, soft drinks, and snacks** for all attendees! This time we're teaming up with our friends at [Softr](https://www.softr.io/). Bring an idea or just curiosity, and we'll team you up, point you at Softr's AI-powered, no-code builder, and you'll leave with a working app — or whatever else you dream up. ​A few flavours of **what folks might build on the night**: * ​Turn a messy spreadsheet into a real, login-protected app * ​Build the internal tool to automate the boring part of your job * ​Spin up a portal for your community, side project, or weirdest idea [Softr](https://www.softr.io/) is an AI app builder that turns your ideas into real business apps — client portals, internal tools, dashboards — complete with login, permissions, live data, and workflow automation. ​**Format 🛠️** ​We'll be teaming up in small groups of 3-4 people. We'll provide a few starter prompts to get you going, and then it's heads-down building with your teammates. The goal is to vibe, learn from each other, and walk out with something working. ​**New to vibe coding? ✨** ​No worries. We'll provide simple starter ideas, example prompts, and tool suggestions so even total beginners can dive in without stress. ​**Schedule 🕒** ​(Doors open early so we can settle in. Aim to arrive by 18:20 so we can kick off on time.) ​18:30 — Welcome ​18:40 — Intro from the Softr team ​18:55 — Challenge brief & team formation 🤝 ​19:00 — Round 1: Build 💻 ​19:45 — Break (snacks, drinks, swap ideas) 🥕 ​20:00 — Round 2: Keep building 🏗️ ​20:30 — Optional demos (show what you made!) 📺 ​20:50 — Hang out, network, make friends ☀️ ​21:00 — Close ​**Who is it for?** ​Anyone! Curious coders, tinkerers, designers, founders, AI-curious folks, and developers. If you've ever wanted to turn an idea into a working app without writing code, you belong here. ​**What to bring** ​- Laptop 💻 \- Vibes ⚡ ​**Location 📍** [Rhabarber, Berlin](https://maps.app.goo.gl/ZZBbscwoey7ZszRn6) ​🌟 No pressure, no gatekeeping. Just good people, fun ideas, and some fast-paced collaborative building.

**⚠️ IMPORTANT: REGISTRATION MANDATORY ⚠️** Registration on **Luma** is **REQUIRED** to attend this event. **Link: https://luma.com/qdncoq55?utm_source=meetup** Your registration is subject to host approval. You must complete the registration process on lu.ma to receive the full event location details and confirmation of your attendance. **Please note: Without approved registration on Luma, you will NOT be able to access the event location or attend.** Bliss - Berlin’s biggest AI community - is growing, and you can become part of it. Our team of over 30 volunteers organizes events such as speaker series, workshops, reading groups, diversity events, and more. ​In this event, we will walk you through everything you need to know if you are considering joining the Bliss team. We will introduce our current projects, explain how the team is organized, and show you where you can contribute based on your interests and skills. ​Afterwards, there will be free pizza and drinks, giving you the chance to meet the team, ask questions, and get to know the community in a relaxed setting. ​ **⚡ FINAL REMINDER ⚡** **You MUST register and be approved on Luma to attend. The event location will only be visible after your registration is confirmed by the host. Link: https://luma.com/qdncoq55?utm_source=meetup** *** We are **BLISS e.V.**, Berlin’s AI community connecting like-minded individuals passionate about machine learning and data science. Our **BLISS Workshops** connect **students and young professionals with industry partners**, offering an inside look into **how machine learning is applied in real-world settings** \- from research and development to deployment\. ​ ​​​BLISS Website:[ https://bliss.berlin](https://bliss.berlin/?utm_source=luma) ​​​BLISS Youtube:[ https://www.youtube.com/@bliss.ev.berlin](https://www.youtube.com/@bliss.ev.berlin?utm_source=luma)

From APIs to Agents: Control, Identity, and What Breaks Along the Way Most of what we've built over the last \~15–20 years assumes a static frame of reference: Apps talk to services over APIs. You know who's calling what, you can stick a gateway in front of it, apply some policy, and move on. Agents don't really fit that model. They don't just call an API and return. They decide what to do, call a tool, look at the result, call something else, maybe involve another agent, loop through an LLM a few times… all the while, doing onbehalf of the user, with permissions that aren't always obvious. It's not always clear who is actually doing something. It's not obvious what the full execution path looks like. And the access control models we're used to — user → service, service → service fall part. We'll dig into what actually breaks when you start wiring agents into real systems, especially around identity and access control. Things like: \- how \(or if\) you assign identity to an agent \- what it means for an agent to act "on behalf of" someone \- how you enforce policy when the flow isn't predefined \- and how you get any kind of visibility into what just happened We'll also look at some of the patterns starting to emerge: agents talking to other agents, tools being invoked dynamically, and why a mediation layer (ie, agentgateway) must be built from the ground up with this in mind. \-\-\-\-\-\- Speaker \-\-\-\-\-\- Christian Posta (Solo.io) Christian is a globally recognized expert in cloud-native architecture, service mesh, and distributed systems. As Global Field CTO at Solo.io, he works with enterprises to design and implement next-generation platforms—and is now at the forefront of AI-native infrastructure and agent systems. \-\-\-\-\-\- Who should attend? \-\-\-\-\-\- This meetup is for people who are building or thinking about the next generation of enterprise systems: Platform engineers and architects, Cloud-native practitioners, AI engineers working with agents and LLMs, Anyone exploring how AI changes system design \-\-\-\-\-\- How to join \-\-\-\-\-\-\- This time, the meetup will be in the premises of Riverty in Kantstrasse 17, Berlin (4th Floor of Living Berlin mall). Riverty will provide pizza and drinks. Please bring your ID as you will need to sign an NDA (we are a regulated entity).

Riverty Tech Night in collaboration with KI Park and cloud ahead Most of what we've built over the last \~15–20 years assumes a static frame of reference: Apps talk to services over APIs. You know who's calling what, you can stick a gateway in front of it, apply some policy, and move on. Agents don't really fit that model. They don't just call an API and return. They decide what to do, call a tool, look at the result, call something else, maybe involve another agent, loop through an LLM a few times… all the while, doing onbehalf of the user, with permissions that aren't always obvious. It's not always clear who is actually doing something. It's not obvious what the full execution path looks like. And the access control models we're used to — user → service, service → service fall part. We'll dig into what actually breaks when you start wiring agents into real systems, especially around identity and access control. Things like: \- how \(or if\) you assign identity to an agent \- what it means for an agent to act "on behalf of" someone \- how you enforce policy when the flow isn't predefined \- and how you get any kind of visibility into what just happened We'll also look at some of the patterns starting to emerge: agents talking to other agents, tools being invoked dynamically, and why a mediation layer (ie, agentgateway) must be built from the ground up with this in mind. \-\-\-\-\-\- Speaker \-\-\-\-\-\- Christian Posta ([Solo.io](http://solo.io/)) Christian is a globally recognized expert in cloud-native architecture, service mesh, and distributed systems. As Global Field CTO at [Solo.io,](http://solo.io,/) he works with enterprises to design and implement next-generation platforms—and is now at the forefront of AI-native infrastructure and agent systems. \-\-\-\-\-\- Who should attend? \-\-\-\-\-\- This meetup is for people who are building or thinking about the next generation of enterprise systems: Platform engineers and architects, Cloud-native practitioners, AI engineers working with agents and LLMs, Anyone exploring how AI changes system design \-\-\-\-\-\- How to join \-\-\-\-\-\-\- This time, the meetup will be in the premises of Riverty in Kantstrasse 17, Berlin (4th Floor of Living Berlin mall). Riverty will provide pizza and drinks. Please bring your ID as you will need to sign an NDA (we are a regulated entity).

Hi Everyone, we are very excited to announce our first 2026 OpenSearch Project Berlin meetup on **Friday June 5th** **Agenda** **6:30pm Start** (Drinks and snacks will be provided) **6:45pm TBD** **7:30pm Break** (Drinks and Snacks) **7:50pm TBD** **8:30pm Networking** **9:00pm Close.**

## 🤝 Host Information A co-hosted event by ProductTank Columbus & Women in Product Columbus 💡 About the Workshop AI adoption is stalling across organizations — not because of a lack of motivation or tools, but because it's fundamentally a behavior design challenge. This hands-on workshop applies proven Behavior Design models and methods to help you move from a vague organizational wish to boost AI adoption to 3-5 concrete, testable interventions you can act on starting tomorrow. Whether you're a product manager, on a product team, or just someone trying to get AI to actually stick at work, you'll leave with a clear picture of what's worth focusing on, what to ignore, and how to drive real, sustained adoption — no guesswork required. 🛠️ What to Bring Laptop: Fully charged and ready to go. AI Assistant: Have your favorite AI assistant pulled up. (Dom will be using Claude, but feel free to use whichever assistant you prefer!) 🍕 Logistics & Perks Food & Drink: Pizza and drinks provided! Parking: Plenty of free spaces available on-site. ###

Topic to be announced. **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

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. So please RSVP for a head count!

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

Most people still use AI like a search box: type one question, get one answer, repeat. But the next step is AI agents: systems that can take a goal, break it into steps, use tools, remember context, and produce useful work for a human to review. In this beginner-friendly session, we’ll demystify what AI agents actually are — without hype or jargon. We’ll walk through practical examples of how agents can help with research, planning, writing, coding, operations, and personal productivity. We’ll cover: * What makes an AI “agent” instead of just a chatbot * How agents break tasks into steps * Where agents are genuinely useful today * Where they fail, hallucinate, or need human review * How to design simple AI workflows for your own work * A live demo of an AI agent-style workflow from start to finish No coding experience required. This is for anyone who wants to understand where AI tools are going and how to use them more effectively right now. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

Couldn't make Knowledge? Or want to debrief the dancing robots or Autonomous Workforce? Join us for a Knowledge '26 recap, insights sharing, a couple rounds of golf, and fun at Topgolf. As always, drinks and food will be provided. More details to come — mark your calendar, RSVP, and save your spot today!