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Frequently Asked Questions
Yes! Check out complexity events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the complexity events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find complexity events near your location here. Connect with your local community and discover events within your area.
Complexity Events Today
Join in-person Complexity events happening right now
July Meetup: Hearables and assistive technologies
On the 1st of July we will host the next iteration of our monthly Audio Developer Meetup where **Peggy Sylopp** from [sinceare](https://www.sinceare.com/) will be presenting her work on personalization approaches for hearables, and **Vlad Litvinenko** will demo 'Spotykach', a looping playground.
See below for details!
As always, there will be a chance to network over drinks and pizza. Anyone interested in Audio development is welcome!
Doors open at 18:00, talks start at 18:15.
Please note: Attendance is **strictly limited** to people who have RSVP'd.
Talk details:
**Can users train their own audio system?** \- Peggy Sylopp
In this talk, we present Sinceare’s closed-loop personalization approach for hearables. Instead of relying on predefined fitting rules or static presets, users teach the system how it should sound through interaction and feedback. These preferences are transformed into personalized machine-learning models that learn how to control existing audio processing algorithms according to individual preferences.
Rather than replacing audio DSP algorithms, the generated models act as an adaptive control layer that continuously adjusts algorithm parameters based on user-specific listening preferences.
Based on more than eight years of research and a recent study conducted with Fraunhofer IDMT and Charité, we will share insights into user-driven audio model generation, human-in-the-loop machine learning, and the path from research prototype to future embedded hearable deployment.
**Spotykach, a looping playground** \- Vlad Litvinenko
Vlad is a Berlin based software developer doing e-commerce by day, bleeping machines at night and sometimes music in between.
The talk is about device they’ve recently built. It’s “Spotykach”, a looping playground, as they call it. It started from an attempt to do a simple Beat-Repeat kind of plugin, but then evolved into a community project within Synthux Academy with people from different backgrounds and countries.
Moody Comedy Showcase
The Moody Comedy Show is an interactive stand-up experience where the audience sets the tone! Just like in life, we all have different moods—happy, angry, excited, or maybe just “meh”—and comedians are no different. Each performer will embrace their mood on stage, delivering jokes that match their vibe, whether they’re feeling upbeat, frustrated, or existential.
But that’s not all—you get to join in too! Audience members will write down their mood, and we’ll pull from a hat, riffing on your emotions in real-time. It’s a comedy show that evolves with the energy in the room
https://www.eventbrite.de/e/moody-comedy-showcase-tickets-1276031276899?aff=oddtdtcreator
Discussion philosophie & politique 🌟
Salut les amis,
Nous vous invitons pour notre prochaine discussion **le mercredi à 19h00**, **au Dussmann KulturCafé**, au 2e étage de Dussmann das KulturKaufhaus Berlin, Friedrichstraße 90, 10117 Berlin. Nous espérons voir de nombreux nouveaux visages et avoir une discussion animée et inspirante !
✨ **Au programme ?** Des échanges captivants sur des sujets de **philosophie** et de **société** qui nous intriguent et nous passionnent. Une belle occasion de partager nos idées, découvrir d’autres points de vue et apprendre ensemble dans une ambiance conviviale.
Ce soir, Azzeddine El Matine présentera son nouveau livre, Abgewickelt, une fiction philosophique qui raconte l’histoire d’un jeune Marocain de Casablanca subissant les conséquences de l’arbitraire et de l’oppression d’un État corrompu, et qui aspire à commencer une nouvelle vie dans le GDR.
**Niveau de français** : Idéalement, il vous permet de participer à une discussion intellectuelle sans trop de difficultés !
**Lieu** : Friedrichstraße 90, 10117 Berlin
Si possible, nous vous demandons une petite contribution de 2 euros afin de couvrir les frais de Meetup.
À bientôt! 😊
Naked Dirty Minds English Comedy / Open MIC
"No half-thruths, just naked minds”
Welcome to the comedy show where you can see unfiltered comedians speak their thruth since almolst 5 years! Their topics can range from their last sexual encounter to why they hate chickens and how to win a fight with a chesse sandwich.
So expect any kind of material from clean to the very dark.
Each comedian will have between 5-10 minutes to make you laugh.
The show is located in the cozy Agata Bar on Weichselstraße 55 in Neukölln - open for all of those who appreciate cozy nights and a fine selection of drinks and good mood.
The space is limited, so the early bird catches the worm - get a reservation for your own good!
Doors: 19:30
Show: 20:00
Get your free reservation now & pay what you want for the show!
*Reservations are only kept until 20:15, so please arrive before that for assured seating.
SHUFFLE DANCE CLASS
**DNA. presents "SHUFFLE FUSION"**
***A smooth Dance Style connected to Electronic Music***
This workshop guides You through the numerous facets of shuffle movements and shows You how to connect them into choreographies. Lead by our two amazing community members & Your new Shuffle Teachers Marcel & Dani Ospina - talented shuffle teachers that started shuffling at a very young age and leads this class with his experience connected to a lifetime of passion.
Wednesdays (weekly, regular)- Marcel & [Dani](https://www.instagram.com/daniospina20?igsh=bnBrM3BxY2xuNnll)
**Try something new and experience an energetic dance style full of passion and great rhythms.**
See Us Soon.
Love,
Marcel, Dani & DNA.
...for more info check out www.dna-artclub.com / follow us on IG: @nightart.club
\*Members of Dair Night Art e.V. and Subscribers of DNA. Art GbR.
\*\*By entering the DNA. ART HOUSE, You agree to comply with the Hausordnung of Dair Night Art e.V. and Geschäftsordnung of Dair Night Art e.V. Please ensure You review these documents thoroughly in advance.
Beer 'n Mic: English stand-up with 8 comedians!
**Craft beer pub + Berlin's funniest international comedians! Every Wednesday at 8 PM!**
**Berlin's long-running Wednesday night English comedy at one of the city's most welcoming expat pubs with professional stage & sound! *Our full schedule & info at: [eastwestcomedy.com](https://eastwestcomedy.com/ "https://eastwestcomedy.com"); subscribe to [instagram.com/eastwest_comedy](https://instagram.com/eastwest_comedy "https://instagram.com/eastwest_comedy") for updates!***
It's a match! Fresh craft beer and English comedy in one of Kreuzberg/Neukolln's coolest crart beer/cocktail pubs and performance venues Göttin der Weisheit. Every Wednesday, come to see 8 performers from different countries, in a curated Open Mic show: some are industry veterans, some have only just begun their journey in comedy. But as we know in Germany, beer makes everyone equal. Drink, laugh, love, and well... get home safe. It's still a Wednesday, even in Berlin.
***Google rating (300+ reviews): 5.0 / 5.0***
***Meetup rating (1000+ reviews): 4.9 / 5.0***
★★★★★ “Laughed a lot, will come again for sure” Oliver, UK
★★★★★ “A cozy place with high quality live comedy!” Joanna, Hong Kong
★★★★★ “Great comedy show, talented comics and very nice atmosphere” Mariia, Ukraine
★★★★★ “Comedians were good, beer was good, ambiance was super nice!” Gaelle, Lebanon
★★★★★ “The humour hit us right on the spot!” Eve, China
★★★★★ “Perfect evening of laughter” Igor, Croatia
★★★★★ “Cozy stand-up venue with hilarious international artists and audience!” Elvira, Russia
★★★★★ “Great new shows at one of Berlin’s coolest venues!” James, USA
Show will consist of 2 halves with an interval.
Doors open: 7:30 PM
Show: 8:00-10:00 PM
Entry: Pay What You Want\* (seat reservation required): you reserve your seat for free, and Pay What You Want at the end of the show, depending on how much you think the show is worth (recommended fee: €10-15). Reservations expire 10 minutes before the start of the show.
\*It is not within our principles to promote a show as "Free Entry" and ask for a "not-so-voluntary" donation at the end. This show is paid - we just let you decide the price ;)
PBerg engineers - monthly meetup
**This is 100% non-profit. The 15€ sign up fee for everyone is only to minimize last-minute cancellations. The total sum goes to a bar-tap that everyone can use to order drinks until the amount is used up. ‼️NO REFUNDS‼️**
**‼️Please don't just show up without RSVPing here and paying the 15€. We have a separate room that has limited capacity and a specific drinks agreement with the bar - so splitting up the bill won't become a mess.‼️**
**Small update on how your money get's used from May 2024 onwards:** As of this month, meetup.com has started charging me 34€ instead of 16€ per month. I've decided to distribute this fee evenly among all us participants every month. Example: In the last 12 meetups, the average number of attendees was 17. With 17 attendees I would effectively collect 230€ (after fees). I would now substract 34€ leaving us with 196€ that go to the bar. 15% get's tipped to the wait staff, in this case 30€, leaving us with 166€ effectively to order drinks. Hope everyone is cool with this system. :)
Website: https://www.pberg-engineers.me
WhatsApp groups:
Please come and join us on WhatsApp!
\- "PBerg Engineers \- NEWS" \- Only organizers can post announcements or polls \-\> https://chat\.whatsapp\.com/EqMJMmlCZO6LOOfAoG4yTj
\- "PBerg Engineers \- DISCUSS" \- Everyone can post \-\> https://chat\.whatsapp\.com/LPuo76J83gF6IZMLUcM4u2
Please join those groups now if you're interested. :)
All skill/education-levels welcome! :)
Lightning Talks:
\- TBD
We'll also have a brief "Jobs: Lost & Found section".
**Location:**
From the street you will have to enter the right hand Cafe Chagall (yes, there are 2). Then, you go upstairs and our private room is in the far end corner of the building.
We are a relaxed, non-formal meetup of like-minded software engineers who want to always keep learning and want to meet in physical reality over a drink or two.
Prenzlauer Berg, Berlin is home to some of the most talented software engineers in the world, and every month, they come together for an exciting knowledge sharing meetup. This meetup is a chance for attendees to learn from each other, share their experiences, and gain new insights into the world of software engineering.
The atmosphere is friendly and welcoming, and the discussions are always engaging and thought-provoking. Whether you're a seasoned veteran or just starting out in your career, you'll find something valuable at this meetup. Don't miss out on your chance to connect with like-minded professionals and advance your knowledge of software engineering. Sign up for the next event now!
**Website:** https://www.pberg-engineers.me
**WhatsApp groups:**
Please come and join us on WhatsApp!
\- "PBerg Engineers \- NEWS" \- Only organizers can post announcements or polls \-\> [https://chat.whatsapp.com/EqMJMmlCZO6LOOfAoG4yTj](https://chat.whatsapp.com/EqMJMmlCZO6LOOfAoG4yTj)
\- "PBerg Engineers \- DISCUSS" \- Everyone can post \-\> [https://chat.whatsapp.com/LPuo76J83gF6IZMLUcM4u2](https://chat.whatsapp.com/LPuo76J83gF6IZMLUcM4u2)
Please join those groups now if you're interested. :)
Complexity Events This Week
Discover what is happening in the next few days
BLN DevOps #53 | Parloa
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**.
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**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.
Comedy Therapy Express — You Complain, We Entertain
**You complain — we entertain!**
**An hour long chill-but-fun showcase where comedians turn your anonymous problems into punchy on-stage therapy**
Write down anything you want - from dating disasters to existential crisis & watch comedians solve it in the craziest way possible.
❗️**You stay anonymous, and we won't talk to you unless you want us to!** Perfect for introverts, overthinkers, and anyone who needs a laugh
**Doors 20:00 \| Show 20:30**
* Stand-up comedy + live "therapy"
* Different lineup + new problems every show
Every show is a fresh combo of stand-up brought by the guest comedian and advice from the host **Lena Stolby** — she's Russian, so she really knows about problems!
&
**THIS IS A PAID WHAT YOU CAN EVENT**
We have been running solely thanks tolthe support of the
audience.
**Suggested contribution: €15** standard / **€12** reduced (student, unemployed)
[Special Edition] Berlin FinOps and Cloud Cost Optimization - 2 July 2026
We're helping spread the word about the upcoming Berlin FinOps Foundation Meetup and would love to see more of our Meetup community there.
Please note: **registration is handled by the FinOps Foundation**, not through Meetup. Secure your spot here:
[https://community.finops.org/event/berlin-finops-foundation-meetup-july](https://community.finops.org/event/berlin-finops-foundation-meetup-july)
The event brings together FinOps practitioners, cloud cost leaders, and community members for networking and knowledge sharing. If you're interested in FinOps, cloud financial management, or connecting with peers in the Berlin area, this is a great opportunity to join the conversation.
We're also excited that Henrique Amorim, who recently started as the FinOps Foundation's EMEA Community Lead, will be joining this event. Henrique is eager to connect with the community, share ideas, and discuss the future of the FinOps community across Europe. Bring your questions, feedback, and thoughts on where the community should go next.
Register via the FinOps Foundation event page above and we'll see you there.
Comedy Therapy — Problems Solved by Comedians
**Berlin’s Only Comedy Show That Fixes Your Problems (Kind Of)!**
Stand-up comedy meets hilarious, unqualified life advice! Comedians tackle your anonymously submitted problems live on stage—roasting, dissecting, and turning them into comedy gold.
**Where?** The Wall Comedy Club in Friedrichshain!
**When?** Doors: **8:00 PM** \| Show: **8:30 PM**
Come for the stand-up, stay for the therapy—just bring your problems (or a friend with worse ones).
Every show is a fresh mix of **four experienced comedians and new audience problems**—so you never know what to expect!
Hosted by **Lena Stolby** — she’s Russian, so she *really* knows about problems!
**&**
We are a free entry pay-what-you-want show, and **have been running solely thanks to the support of the audience**, so to help us keep making this world a drama free place we **suggest a contribution of €12-15!**
**Seats are limited, so book now!**
The room gets very busy, so, to make sure you get a seat please book a seat via Eventbrite here (it’s free): https://www.eventbrite.com/cc/comedy-therapy-events-1626059
Sunday Tech Coffee Meetup
Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin.
We are usually inside and to the right. Ask the barista/bartender if you can't find us.
In Bad Company - Crowd-work show
In Bad Company is a one-hour stand-up show hosted by Sepideh Kaav, featuring 2–3 of Berlin’s best comedians at one of Mitte’s coolest bars, HIER WO DU STRAHLST. Expect a night of great comedy, terrible decisions, and the kind of socializing where by the end of the night we all somehow know each other a little too well.
No topic is off limits. No one is fully safe. Come with friends, come with a date, come alone, honestly, especially come alone, maybe you meet your future best friend or soulmate here.
🍸 HIER WO DU STRAHLST
📅 Thursday 8:30 PM (CEST)
Doors: 20:30
Show: 21:00 to 22:00
Chitta Walks - Awareness in Motion
Chitta Walks is for people whose days move fast, while the mind never fully lands. Thoughts keep looping even when nothing is urgent. The body moves, but attention is elsewhere. Over time, this disconnect drains clarity and ease.
This walk is a simple reset.
We meet in Berlin’s Tiergarten and walk at a gentle pace. Parts of the walk are in silence, with light guidance and a few short prompts. The walk itself is the practice, bringing body and mind back into the same moment.
No apps. No performance. Just a clear space to slow down and notice what is happening.
If you want to slow down without withdrawing from life, join a Chitta Walk.
✨ **What to expect (approx. 90 minutes):**
* A short arrival and orientation
* A guided silent walk (phones off, no conversation)
* One concise science-based impulse on attention or stress
* Optional reflection in pairs or small groups
* A simple takeaway or experiment for daily life
🚶**Who this is for:**
* Professionals, creatives, and people in transition.
* People who feel mentally busy and want more clarity and balance.
* Those curious about mindfulness, but grounded and practical.
* Anyone comfortable with silence and gentle self observation.
🔔 **Practical notes:**
* Duration: 60-90 minutes
* Wear comfortable shoes and weather-appropriate clothing
* No prior experience needed
* Group size is limited to keep the space quiet and focused
🧭 **Facilitator:**
My name is Partha Sarathi, you can call me PS. I have lived in Berlin for over 12 years. With a background in physics and materials science, my interest in mindfulness grew through personal experience with stress and health challenges. I facilitate the space and structure of the walk, inviting shared exploration rather than instruction.
🤔 **Why Chitta Walks?**
Chitta is a Sanskrit word referring to the mind or field of awareness, used here in a practical, non-religious sense.
Chitta Walks is about noticing how the mind works by slowing down and walking together. Mindful walking makes thought patterns visible in real time, while moving and sensing in the world.
The name points to a simple capacity: noticing what is happening in the mind without immediately trying to fix, judge, or optimize it.
🌿 **Possible effects:**
A calmer nervous system.
Clearer attention.
A felt sense of being more present in your body.
Subtle insights into how your mind reacts under everyday conditions.
A quieter, more grounded way of moving through the city.
**Come as you are. Walk. Notice. Leave with a little more space inside.**
Complexity Events Near You
Connect with your local Complexity community
Stop Guessing: How to Measure and Improve LLM Outputs
Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on.
That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable.
In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork.
This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it.
We’ll cover:
* Why “it looks good” is not enough
* How to improve prompts by changing the input, context, and constraints
* How to compare LLM outputs more systematically
* Basic evaluation techniques for accuracy, consistency, and usefulness
* How embeddings, cosine similarity, and scoring can help evaluate results
* Where automated evaluation works — and where humans still need to stay in the loop
By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve.
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.
The Non-competitive Tennis Partner Program
We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program.
[https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)
IxDA Chat n Pancakes
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.
Columbus Comedy Improv Meetup at Gresso's!
Whether you've never done improv before, or you've done it for so long you were quoted in *Truth in Comedy*, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup**!
The idea behind improvised comedy is to create entire scenes from scratch. A suggestion is taken from the audience and laughter is built on the spot. This can be done in game form, like *Whose Line Is It Anyway, Make Some Noise,* or *Wild 'n Out*; it can also be done in a longer way, to tell a complicated story, like *TJ & Dave*.
Our meetup, which is central Ohio's longest running (and FREE!) weekly comedy event, brings the games for you to play in a safe, supportive, and compassionate environment. Afterward, many members will hang out in *Gresso's* itself and get to know each other. Not only is this a lot of fun, but you get to work on thinking faster on your feet, your public speaking, plus it's an excellent way to meet new people and build relationships that will last a lifetime, and you do that while laughing your butt off!
Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "*Yes, And*" that you'll have a blast!
Cocoaheads
We have moved to guild.host. Look us up there.
https://guild.host/events/buckeye-cocoaheads-rcavwd
How to Be a Better Communicator - Free Seminar
How to be a Better Communicator
Communication is everything in life
You are only as successful as your ability to communicate.
\- What if you could confidently talk to anyone?
\- What if you had the ability to calmly control every conversation?
\- What if you could close that sale\, ask for that date\, make new friends\, repair problematic relationships\, get that raise\, or effortlessly express any idea with confidence?
You can!
The secret to success relies on your ability or inability to effectively communicate. Attend a free seminar and gain a better ability to communicate.
Hosted by the Church of Scientology of Central Ohio
1266 Dublin Road, Columbus, OH 43215
For more information, contact Rhiannon, the Event Host at 614-221-5024
BeComing Circle Initiates
http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg
Instructor - Crow, HPS
Class fee is $30 at the door or approved exchange
RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642.
Reservations made directly to Enchanted Elements will be added to the class list manually not online.
Private Instruction ~ Closed to the Public ~ Initiated Members Only
Please come prepared for ritual.
Blessings ~ Crow











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