Open Source
Meet other local people interested in Open Source: share experiences, inspire and encourage each other! Join a Open Source group.
379,237
members
429
groups
Largest Open Source groups
Newest Open Source groups
Frequently Asked Questions
Yes! Check out open source events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the open source events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find open source events near your location here. Connect with your local community and discover events within your area.
Open Source Events Today
Join in-person Open Source events happening right now
OpenClaw/Clawdbot Anonymous Berlin
**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.
regular NixOS Meetup @c-base
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)
Monatlicher Stammtisch der JUG Berlin-Brandenburg
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
Deutsch happens! @ BrewDog Mitte 💬
**Hallo, Freunde!** Whether you’re a German language pro, a beginner, or somewhere in between, join us for a fun and social evening designed to practice your Deutsch, because well, let’s face it…Berlin is probably the worst place in Germany for that!
**What to Expect:**
* **Casual Conversations**: Practice your German in a relaxed and friendly environment—no pressure, just fun!
* **All Levels Welcome**: From “Hallo, wie geht’s?” to crafting complex sentences, there’s room for everyone.
* **Interactive Games**: Break the ice with language-themed games and activities designed to get you talking.
* **Meet New People**: Connect with others who share your passion for learning languages.
Whether you’re here to brush up on your skills or simply have a good time, you’ll leave with new friends, fresh phrases, and maybe a new favourite beer. 🍺🗣️
🎯 **Pro Tip**: Bring a German-speaking friend or meet one here!
Tag your fellow language lovers, grab a drink, and let’s make it a night of **Sprache & Spaß** (language & fun)!
#SipHappens #GermanLanguageNight #SpracheUndSpaß
**The usual information:**
We always have several organisers there (male and female), so come say hello to us! We care to make sure that everyones enjoys themselves and we have **no tolerance for bad behaviour or creepiness.**
**Follow us on Insta:** @siphappens.berlin
**Join us on Telegram:** t.me/siphappens_berlin
**👉 Other important notes:**
\- 🍸 The locations we visit are bars and clubs\, they are businesses and we are able to keep these events free ONLY if people buy drinks\. Please respect the locations and the event by making purchases
\- 🦹♂️ Remember to keep an eye on your belongings and prioritize your own well\-being\. We are not responsible for any lost items or personal issues\.
\- 📷 By attending our events\, you consent to being photographed or filmed\. Photos and videos taken during the events may be shared on our social media\. If you do not wish to appear in the photos or if you appear in a photo that we post that you would like removed\, please send us a private message as soon as possible on Instagram \(@siphappens\.berlin\)
“Do We Really Understand What We’re Building?” - Hands-on Example Mapping
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!
sMove! Winter Training – Moving into Your Potential ❄️✨
### ***This is a closed course that can only be booked and attended as a whole.***
***So it’s best to join one of the other sMove! trainings beforehand – either on Thursdays in the park or online on Saturdays: [www.baerbelsinger.de/smove ](www.baerbelsinger.de/smove)***
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
### Sensing and Expanding 🌿
sMove! invites you to expand your sensations and ways of expression through the body. The movements are simple and playful – yet they go deep: by moving with awareness, you discover qualities within yourself that are often covered by habit or tension.
### The Body as a Container 🌀
The body is more than muscles and bones – it is a container of memories, energy, and possibilities. In sMove! training, we explore this potential through rhythm, new movements, and focused attention. Each movement becomes an opportunity to sense more clearly, to shift old patterns, and to unfold new qualities – vitality, calm, presence, joy.
### Clarity through Intention 🎯
What makes sMove! special is not performance or perfection, but the direct experience of your body paired with intention, precision, and letting go. When you allow your body to guide you, space opens: your mind becomes quieter, energy can flow, aliveness grows. sMove! strengthens you inside and out – with more flexibility, strength, and ease.
### Experiencing Community 🤝
In the group, connection arises. Everyone moves in their own way – and yet we resonate with the shared rhythm. This collective presence builds trust in your own strength, encourages curiosity, and makes it easier to try something new.
### Who is sMove! for? 🌍
sMove! is open to everyone – previous experience is recommended (feel free to ask).
15 sessions
* **November 2025**: 11., 18.
* **Dezember 2025**: 9., 16.
* **Januar 2026**: 20., 27.
* **Februar 2026**: 3., 10., 17., 24.
* **März 2026**: 24., 31.
* **April 2026**: 7., 14., 28.
💶 Fee
Early Bird: 280€
Full package: **320 €**
Offener Deutschunterricht - Text & Konversation - Niveau B2+ (Fortgeschritten)
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.
Open Source Events This Week
Discover what is happening in the next few days
OpenClaw Builders Berlin: Personal AI Meetup
An open Berlin meetup for anyone curious about personal AI and OpenClaw.
We are bringing together people who want to explore personal AI in a practical, social, and low-pressure setting. Expect short live demos, Q&A, and relaxed networking with others who are building, testing, or simply curious.
No gatekeeping, no paywall, no polished setup required. Scrappy demos, unfinished workflows, and honest questions are all welcome.
**Language:** English or German, depending on the group
**Demos welcome:** Bring what you are building, or just bring questions
Whether you are already using OpenClaw or just want to understand what personal AI can look like in real life, you are very welcome.
RSVP if you want to join, and feel free to comment if you would like to demo something.
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
Ein offenes Berlin Meetup für alle, die neugierig auf Personal AI und OpenClaw sind.
Freu dich auf einen lockeren Abend mit kurzen Live-Demos, Q&A und viel Raum zum Netzwerken. Halbfertige Setups, Experimente und unfertige Ideen sind ausdrücklich willkommen.
**Was dich erwartet**
* Kurze Live-Demos
* Offenes Q&A
* Entspanntes Networking
* Austausch über Personal AI und OpenClaw
* Platz für praktische Ideen und ehrliche Einblicke
**Sprache**
Englisch oder Deutsch, je nachdem, was für die Gruppe vor Ort am besten passt.
**Demos und Speaker willkommen**
Wenn du an etwas baust, einen Workflow testen willst oder einfach etwas zeigen möchtest, bring es gern mit. Und wenn nicht, komm trotzdem vorbei.
Sip Happens! x Caprice Launch Party
**Sip Happens! x Caprice — @MOKKAMITTE**
🎟️ Paid Event. [Buy your ticket here!](https://fixr.co/event/caprice-berlin-grand-opening-tickets-118831346?lang=en-US) 🎟️
Get ready for a high-energy collision of sound as **Sip Happens!** teams up with **Caprice** for a night dedicated to the best in sexy electronic music and more.
Expect a supercharged atmosphere, cutting-edge beats, and a uniquely immersive experience on the dance floor.
Discover genres from all over the world while connecting and mingling with new friends in Berlin.
With 8 international DJs bringing their signature styles, the night promises a nonstop journey through powerful sounds and unforgettable moments.
**Full Lineup:**
* MARIA FM (UKR)
* BRIZLA (SA)
* CECI FIERCE (DE)
* METABOLISM (SA)
* SONGOVIC (UK)
* DAVID GEORGE (DE)
* HKAUFFMAN (DE)
**Expect a night of the best music, an electric crowd, and a one-of-a-kind vibe you won’t want to miss.** 🎧🔥✨
🎟️ Paid Event. [Buy your ticket here!](https://fixr.co/event/caprice-berlin-grand-opening-tickets-118831346?lang=en-US) 🎟️
Godot Engine Community Meetup @ c-base
Welcome to our cosy Godot Engine Community Meetup! 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! 🦜
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/)! 🕊️
OpenClaw / NemoClaw – Exchange
Join us for an open and collaborative meetup dedicated to OpenClaw and Nvidia Nemoclaw — the emerging ecosystem for AI‑driven automation and intelligent agent workflows.
Whether you're already working with Claw agents, experimenting with the tooling, integrating automations into real systems, or just curious about what’s possible, this meetup is the place to connect.
**What this meetup is about**
A relaxed, open discussion space for topics such as:
* Building and orchestrating Claw agents.
* Best practices for running and scaling ClawdBot Integrations, workflows, and experimental setups.
* Secure agent execution and sandboxing.
* Tools, extensions, and community‑built add‑ons.
* Troubleshooting, insights, and real‑world use cases.
* Ideas about the future direction of the OpenClaw ecosystem.
This is a topic‑open session — everyone is welcome to bring questions, demos, ideas, or challenges they’re working on. No slides or formal agenda required.
Bring snacks or drinks if you like — completely optional.
We’re excited to meet developers, tinkerers, researchers, and enthusiasts who want to explore the next generation of agent‑based AI automation together.
BitDevs Bitcoin Socratic Seminar Berlin
**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).
Tech In Berlin - Social Meetup #1
As the title suggests, this is a **casual get-together** for the **[Tech in Berlin](https://www.techinberlin.com/)**[ ](https://www.techinberlin.com/)community — no talks, no slides, no agenda. Just conversations and connections with people who are building, learning, or curious about tech.
Whether you're a founder, developer, product manager, designer, student, or just exploring the tech space in Berlin, you’re welcome to join.
**What to expect:**
* Relaxed, informal atmosphere
* Opportunity to **make new connections**
* Space to **vibe code together** (the café has great Wi-Fi)
* Share what you’re working on and **get feedback or fresh perspectives**
* Open conversations about tech, startups, ideas, or anything in between
**No agenda. No pitches. No expectations.**
Just show up, grab a drink, open your laptop (if you want).
If you’re new to Berlin, new to tech, or just want to expand your circle — this is a good place to start.
ALL-Berlin (agile learning lab Berlin)
Dear Friends,
"**Aroundhome**" will be our host in April 2026! YAY!
Address is: Potsdamer Platz 11, Berlin
Our standard-text:
Are you an agile practitioner and learner? A Problem-Solver, Scrum Master, Product Owner, Developer, Agile Coach or an awesome Manager? This is our space to learn together. Bring your challenge, opportunity or problem! Anything you want to share, practice or learn about!
This afternoon will be all about learning through exchanging. We will create a list of topics and form small groups to work together in an open space format.
Options include:
* ask for help with a current situation
* bring and practice a method or technique
* practice coaching, where the coach and the coachee both learn
this space is safe to fail!
Happy to have you as a part of our awesome community!
Your ALL crew: Alex & Simon
Open Source Events Near You
Connect with your local Open Source community
Columbus Code & Coffee 85 @ Improving
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!
Columbus Code & Coffee 86 @ Improving
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!
What If Your AI Could Be a Team? - Chad Green
**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
Cocoaheads
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/
Libera Animae - Freeing the Soul
Main Library, Meeting Room 3B
Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen).
Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection.
All backgrounds are welcome.
IxDA Chat ‘n Pancakes
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!





























