Reactive Programming
Meet other local people interested in Reactive Programming: share experiences, inspire and encourage each other! Join a Reactive Programming group.
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Frequently Asked Questions
Yes! Check out reactive programming events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the reactive programming events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find reactive programming events near your location here. Connect with your local community and discover events within your area.
Reactive Programming Events Today
Join in-person Reactive Programming events happening right now
Monthly Agile Networking Beer
You are interested to talk about agile topics like agile project management, agile organisation development, agile practices and agile mindset then join our first meeting and become part of a vibrant agile community.
care 4 kids Nanny Meet-up event - come learn about us
Kommen Sie vorbei und lernen Sie care 4 kids kennen. Wir stellen uns vor, erzählen Ihnen über unseren Jobmöglichkeiten und beantworten alle Ihre Fragen. Wir sind im Starbucks an der Europaallee 7 (neben HB Zürich). Sie finden uns drinnen am Tisch . Auf dem Tisch sind care 4 kids Schablonen aufgestellt, damit Sie uns schneller sehen.:) Bitte bringen Sie Ihren vollständigen Lebenslauf mit und konsumieren Sie ein erfrischendes Getränk. Wir freuen uns auf Sie.
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Come and learn about care 4 kids and let us answer all your questions. Please find us at Starbucks Europaallee 7 (next to HB Zurich). We have care 4 kids sign set up so you can find us faster. :) Please bring us your CV and have a refreshing drink. We very much look forward to meeting you!
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Vibe Coding: Build & Monetize an iOS App in 60 Minutes
Most apps don’t fail because of code — they fail because they don’t **make money**.
In this live, hands-on session, we’ll build a real iOS app from scratch using AI-assisted (vibe) coding — and **integrate monetization** from the very beginning.
No theory. Just a **real app, built step by step**.
You’ll see:
* how to go from idea to **working app** in under an hour
* how to structure a simple product that can actually **generate revenue**
* how **subscription models** work in practice (weekly, monthly, yearly)
* what makes a **paywall convert** — and what kills it
* how tools like **[Adapty](https://adapty.io/)** help you set your monetization right and make experiments!
* **paywall experiments** without rebuilding your app
This session is designed not only for developers, but also for **vibe coders, indie makers, and founders** who use AI tools to build products faster — even without a deep technical background.
**What you’ll walk away with**
* a clear understanding of how monetization fits into product design
* a real example of a working app with a paywall
* practical insights you can apply immediately
**Format**
* Live coding session (\~60 min)
* Short discussion & Q&A
**Who should attend**
* mobile developers
* vibe coders & AI builders
* indie makers
* startup founders
**About the host**
Sèrge Koval — iOS/macOS engineer with 17+ years of experience, cybersecurity specialist, and organizer of Luxembourg Vibe Coding workshops.
**Stay in touch**
After the session, I’ll share a few extra tips, resources, and updates in Adapty's Discord server:
[https://discord.gg/jSrPYTXBTN](https://discord.gg/jSrPYTXBTN)
There is also a dedicated "🇱🇺 luxembourg" channel!
**Notes**
The session will be conducted in English.
📍 OFFLINE and ONLINE from Luxembourg City
🗓 May 27\, 2026 \| 18:00–19:30
⚡️Spots are limited to 500 — register now.
Sonification of Health Data by Charis Arnold
Charis Arnold will present «Klingende Werte», a project exploring data sonification in the context of multiple sclerosis. Charis will share the project's development, from initial concept to discovering data sonification through human data. The presentation covers the tools used, including TwoTone, Cavalry, and Google Sheets, and discusses future directions for making this work accessible to people living with chronic illnesses, as well as its potential applications in research.
**Speaker:**
[Charis Arnold](https://www.charisarnold.ch/) is a multi-disciplinary designer working in data visualization, editorial design, brand design, and illustration based in Zürich.
**Agenda**:
17:00 Doors open
17:00–17:30 Drinks & chats
17:30–18:30 Presentation
18:30–19:00 Drinks & chats
19:00 Goodbye!
**Format**:
This session will be a presentation followed by a plenary conversation for questions and answers with our speakers.
**Language**:
Please note, this presentation will be held in German.
**Streaming:**
If you can’t be with us in person, you can join the livestream at 17:30 on Zoom. **You don’t need to register on Meetup to join virtually.**
Link: https://us02web.zoom.us/j/85774605309
Interactive Things will provide drinks and snacks and moderate the presentation.
Reactive Programming Events This Week
Discover what is happening in the next few days
ENGRAVED CERAMIC PLATE: Connect & Create
✨🎟️ [Ticket required !! CLICK HERE](https://atelier-yuniku.as.me/nerikomi-bowl) 🎟️✨
**MATCHA OR CEREAL NERIKOMI BOWL: Pottery Workshop**
Pottery Workshop with Tereza (in English) at atelier yuniku
2 hours / CHF 60.00
Join us for a **calm session** where you’ll create your own **ceramic bowl** using the **nerikomi technique**. Whether you prefer a **matcha** or a bowl for your morning **cereal**, you’ll shape a piece that fits your style.
You’ll begin by choosing your clay colors - earthy tones that are layered and combined to form soft, marbled patterns. Using the nerikomi technique, you’ll mix the clay to create natural color flows, then shape your bowl by hand using a pinching technique.
To finish, you’ll gently carve and scrape the surface, revealing the patterns hidden within the clay. The result is a one-of-a-kind bowl with a raw, organic look. After the workshop, we’ll glaze and fire your piece for you.
**Good to know:**
* Course in English
* Beginner-friendly – no prior experience needed
* Choice of 2–3 clay colors
* All materials provided
* Small apéro with wine included
* Bowl ready for pickup in approx. 4 weeks
* One bowl included; extra bowls can be made for a materials fee
**Check out more of our courses: [https://www.atelier-yuniku.ch/en/courses](https://www.atelier-yuniku.ch/en/courses)**
ℹ️ Please note:
* Tickets are non-refundable
* Photos and videos may be taken during the event for communication and promotion purposes. Please let the host know if you do not want to be included.
OWASP Switzerland Community Event, May 2026
The OWASP community is getting together for another meetup in May 2026! Join us for some security talks 🔐, good company 🤝, and a little aperitif 🍕.
**Program:**
**16:00** - **Doors open**: Grab a drink, meet old and new friends from the OWASP Switzerland community
**16:30** - **Hello from OWASP Switzerland**
**16:40 - Talk: AI-Driven Development Lifecycle (AI-DLC) (Markus Rollwagen, Senior Solutions Architect, AWS)**
**17:25** **-** **(10min break)**
**17:35 - Talk: Using HoneyPots to protect critical Infrastructure (Giulio Grazzi, Head IT Security, SRF)**
**18:35** - **(10min break)**
**18:45 - Talk: We Tried to Detect Prompt Injection in Coding Agents. Here's What Broke (Paulo Martins, Principal Security Engineer, GitLab)**
**19:30 - Networking & Pizza 🍕 & Aperitif**🍷- Grab a bite and chat with old and new friends
**Talks Details:**
**AI-Driven Development Lifecycle (AI-DLC) (Markus):**
Software development is undergoing a fundamental shift. AWS’s AI-Driven Development Lifecycle (AI-DLC) positions AI not as a mere assistant, but as a central collaborator across the entire SDLC — from requirements to deployment. In this session, we’ll explore how AI-DLC’s three phases — Inception, Construction, and Operations — redefine team workflows, and what this means for security: how AI enforces organization-specific security standards consistently, maintains human oversight at critical decision points, and ensures traceability from requirements to deployment. We’ll discuss the security opportunities and risks this methodology introduces, and how teams can adopt AI-DLC while keeping security a first-class citizen in every “bolt.”
**Using HoneyPots to protect critical Infrastructure (Giulio):**
How do you protect your critical infrastructure in the days of agentic ai and very limited options on your hosts? You need to get creative and use stone age tech. I’ll give you some insights, from our journey and pitfalls you might be facing (and should be avoided :))
**We Tried to Detect Prompt Injection in Coding Agents. Here's What Broke (Paulo):**
As a community, we are delegating a significant part of our development workflow to agents, and as the use cases grow, the risk of prompt injection keeps increasing - to the point that it made it to the top of the OWASP LLM Top 10. In this talk, I'll explore the concept of "detect and prevent prompt injection" and why it is particularly hard to do for coding agents.
**Speaker Details:**
**Markus Rollwagen**
Senior Solutions Architect at AWS, based in Switzerland
Markus enjoys deep dive technical discussions, while keeping an eye on the big picture and the customer goals. With a software engineering background, he embraces infrastructure as code and is passionate about all things security.
**Giulio Grazzi**
Head IT Security, SRF
From bike messaging to networking to infosec - always maximize never max out. Currently at Schweizer Radio und Fernsehen dealing with all Infosec topics, background in networking, embedded devices and mobile security.
**Paulo Martin**
Principal Security Engineer, GitLab since 2021
Now focused on AI security: prompt injection, sandboxing, and keeping agentic workflows from doing things they shouldn't.
Web Zurich Mai 2026
Web Zurich presents inspiring talks all about the web. Join us for the Mai 2026 meetup! We will have three talks as well as chit-chat and drinks.
Whatapp: [https://chat.whatsapp.com/FxOfVTK9nf431xHtVl3eGK](https://chat.whatsapp.com/FxOfVTK9nf431xHtVl3eGK)
Website: [https://webzurich.ch](https://webzurich.ch)
18:30 \~ 19:00
Arrival time with drinks, chat
19:00 \~ 19:10
Welcome and introduction
19:10 \~ 19:30
*Alex Suzuki*
**Monetizing JavaScript: Building Profitable Products as a Solo Developer**
Lessons learned from building and launching a commercial JavaScript library as a solo developer.
19:30 \~ 19:50
*Hugo Sousa*
**Ten times tea**
I'm building a programming language. When I got to the frontend, I ran into a problem: React's mental model is elegant, but the mental model is at odds with the code. Hooks, effects, and render passes create a runtime that bears little resemblance to the code we write. The Elm programming language works differently and its architecture (TEA = The Elm Architecture) has been adopted by other tools over the years.
So I copied it as well. My language embeds TEA at the language level, not as a library. This unlocks time-travel debugging, reproducible application state and serializable bug reports that include the entire program state.
This talk covers the quick introduction of my language, TEA, why TEA is the right fit and what becomes possible when the architecture is baked into the language itself.
19:50 \~ 20:10
*Marco Gähler*
**Software testing**
Many old software projects don't have any tests - if the code works, why should you bother with tests? Well, you really should bother, because code changes all the time. During development, you keep adding new features which at times requires large scale modifications of the code that will inevitably alter existing functionality. And in existing projects, one still has to make updates once in a while, for example for security patches. These things will always break existing functionality and tests are the only remedy against this issue.
In this talk, we will look at the basic idea of tests, how to implement them, what issues to look out for and how you can test pretty much any piece of code if your code base is well structured.
20:10 onward
More drinks & chat
We look forward to see you there!
Location
https://zurich.impacthub.ch/space/bogen_d/
Viaduktstrasse 93, 8005 Zürich, Switzerland
Visit our website https://webzurich.ch/ for more information about the Web Zurich community.
This event is supported by Impact Hub Zürich, The global community of entrepreneurial people prototyping the future of business. At Impact Hub, you can connect, collaborate, co-work and create great content in an inspiring environment.
📸 PHOTO WALK: Zurich framed
## 📸 PHOTO WALK: [Zurich Framed]
**Framing is the art of using elements within a scene—archways, foliage, or window panes—to create a "frame within a frame." It draws the eye to your subject and adds depth to the composition.**
Expect a sleek, industrial-chic vibe where the soaring concrete of the Viadukt arches meets the iconic stacked shipping containers of the Freitag Tower.
Walk, shoot, and connect with photographers & creators as we move from **Zurich West** into the hidden creative corners of **District 5.**
Beginners, enthusiasts, and pros — all are welcome.
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**EVENT DETAILS**
**Location:** Zurich West → Im Viadukt → Frau Gerolds Garten
**Date:** 30.05.2026
**Time:** 17:00 – 19:30
**Meeting Point:** **[MAME Josef (Josefstrasse 160).](https://maps.app.goo.gl/FvsNaYsBxLUo9GAF6)**[ ](https://maps.app.goo.gl/FvsNaYsBxLUo9GAF6)We'll meet just outside the entrance before heading toward the Viadukt arches.
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**EVENT FLOW**
**17:00** \| Meet & Connect
We’ll gather at MAME, grab a quick espresso, and introduce ourselves.
**17:15** \| Main Walk
Exploring the geometric lines of the railway viaduct, the urban textures of Geroldstrasse, and the vertical perspectives of the Freitag Tower.
**19:30** → Optional dinner or drinks nearby at Frau Gerolds Garten or the Bogen F area.
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**IMPORTANT**
This isn’t a class.
It’s not a tour.
It’s a creative meetup. We’ll walk. We’ll shoot.
We’ll connect.
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**WHAT TO EXPECT**
Bring your:
• Film camera
• Digital camera
• Smartphone
• Curiosity
Whether you're a beginner, seasoned photographer, content creator, or just creatively curious — you’re welcome here. Come solo or bring friends. Spots are limited — reserve your place ASAP.
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**STAY CONNECTED**
📍 Join our [WhatsApp group](https://chat.whatsapp.com/DpjC2GofafSGuWcVnGB4Sz?mode=gi_t) for live location & updates.
📸 Follow [@takeaphotowalkcommunity](https://www.instagram.com/takeaphotowalkcommunity) and tag us in your photos.
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**ABOUT TAKE A PHOTO WALK** Founded in Barcelona in July 2024, Take a Photo Walk connects photographers and creators around the world through real-life creative experiences. Now **Zurich** is part of the story.
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Capture the precision of the stone and the fluidity of the lake.
See you in **Zurich**. 📸
Lean Change Agent - 2-Tages Onsite Zertifikatstraining
# 🚀 Lean Change Agent Zertifikatstraining: Weg von Masterplänen, hin zu echter Wirkung (Zürich)
**Veränderung in Organisationen scheitert oft an starren Plänen und fehlendem Dialog.** In einer komplexen Welt brauchen wir keine dickeren Konzepte, sondern schnellere Experimente und echtes Stakeholder-Engagement.
Dieses Training ist kein theoretischer Frontalunterricht. Wir arbeiten zwei Tage lang intensiv an **Praxisfällen**, damit du am Montag darauf sofort wirksam wirst.
### 🛠 Das Problem & Unser Ansatz
Klassisches Change Management ist oft zu langsam und ressourcenintensiv. Wir nutzen das Lean Change Denkmodell, um Widerstände in wertvolle Energie zu verwandeln und Veränderungen kleinschrittig, zeitnah und messbar voranzutreiben.
### 🗓 Der Ablauf: 2 Tage interaktive Werkstatt
* **Input-Sequenzen:** Kompakte, fundierte Impulse zu agilen Change-Methoden und Emotionaler Intelligenz.
* **Experimente:** Du wendest die Theorie direkt auf deinen mitgebrachten Fall an.
* **Plenum & Diskussion:** Wir reflektieren die Ergebnisse hochinteraktiv und ziehen handfeste Learnings für deinen Alltag.
### 💎 Dein Paket: Was du erhältst
* **Anerkanntes Zertifikat:** Offizielle «Lean Change Agent» Zertifizierung.
* **LCM Backpack:** Zugang zum globalen Ressourcen-Hub von Lean Change Management.
* **Toolbox:** Alle Trainingsunterlagen und kuratierte Literatur für die nachhaltige Verankerung.
* **Full Catering:** Verpflegung über beide Tage hinweg.
### 📊 Fakten, die für sich sprechen
* **Erfahrung:** Über 800 erfolgreich begleitete Teilnehmende in mehr als 70 Events seit 2018.
* **Spitzenqualität:** Ein NPS von 9.2 bürgt für höchste Relevanz.
* **Exklusivität:** Geleitet vom ersten und aktuell einzigen akkreditierten Lean Change Trainer der Schweiz.
### 📍 Die Koordinaten
* **Datum:** Donnerstag, 28.05. – Freitag, 29.05.2026
* **Zeit:** Start um 09:00 Uhr - 17:00 Uhr
* **Ort:** On-Site, Raum Zürich (genaue Location folgt)
* **Sprache:** Deutsch
**Bist du bereit, die Organisationsbegleitung neu zu definieren?**
Pizza Gravel Zurich
https://www.komoot.com/de-de/collection/2875816/-pizza-gravel-zurich
Pizza Gravel Zurich plans social rides on mixed surface around Zurich. Enjoy a nice ride and pizza afterwards. Please check the Komoot Pizza Gravel Zuruch collection for the upcoming tour.
Hackergarten May
We're planning the next Hackergarten Zurich 🥳 We're looking forward to see some familiar faces and share knowledge within the open-source community. Spread the word — everyone is welcome! Bring your project, a bug, a feature, a question... or just your time and enthusiasm 💜 As always there will be free drinks, beer and pizza, sponsored by Quatico.
As usual we briefly present the open-source projects we'd like to work on, break up into groups and try to make an actual contribution. We offer free pizza, beverages and depending on weather conditions a great view on Zurich West from the rooftop terrace.
Many thanks to Quatico (https://www.quatico.com) for hosting the event!
Reactive Programming Events Near You
Connect with your local Reactive Programming community
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/
Ensuring Software Quality in the world of AI Developers - Matt Eland
**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**
Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod.
**YouTube Link**
https://youtube.com/live/BltmWMH1zG0?feature=share
How to Take Control of YOUR Mental Health
It’s time to take control of your mental health. How do you get rid of stress, anxiety and uncertainty? These emotions are buried deep in your reactive mind.
Find out what the reactive mind is, and in the process find yourself.
Here is the secret of being positive and free:
Thinking positively is not enough.
You also have to get rid of the negative thinking.
Your mind is like a garden.
You can plant many beautiful flowers in it, but if you don't get rid of the weeds when you plant your flowers, the weeds will soon take over the whole garden.
A positive thought is like a flower in your mental garden, and a negative thought is like a weed.
You cannot expect to have a positive mindset if you continue to have negative thoughts dwelling and growing there.
So, how do you get rid of the negative thoughts? That's what this Meetup is all about. Attend this local meeting and find out!
The Meetup event will be led by a consultant who had helped many people live happier in life.
Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there.
This group is created by the Dianetics & Scientology life improvement center.
DoJo (Informal Python Meeting)
**Latest Dojo Location!**
**Knotty Pine Brewing**
1765 W 3rd Ave,
Columbus, OH 43212
We're going to try a new dojo location for a few weeks and see how it works
Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead.
We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community.
https://forms.gle/ehSfUAC2WgR34Crq9
Prompting Is Not Magic: How to Give AI Better Context
Most people use AI like a search box: they type one sentence, hope for the best, and get frustrated when the answer is generic, wrong, or useless.
But getting better results from tools like ChatGPT, Claude, Gemini, and other AI systems is not about memorizing magic prompts. It is about learning how to give the AI better context.
In this beginner-friendly session, we’ll break down how to make AI dramatically more useful by improving the way you communicate with it. You’ll learn how to give clearer instructions, provide examples, set constraints, ask for better output formats, and use follow-up questions to turn a mediocre answer into a genuinely useful one.
We’ll cover practical techniques you can use immediately for work, learning, writing, coding, planning, research, and everyday problem solving. We’ll also touch on why these same ideas show up in more advanced AI systems, including RAG, agents, evaluations, and AI workflows.
No technical background required. Bring your curiosity, your questions, and maybe one real task you wish AI was better at helping you with.
**What you’ll learn:**
* Why “better prompting” is really about better context
* How to structure requests so AI gives more useful answers
* How to use examples, constraints, and output formats
* How to iterate when the first answer is not good enough
* How these skills connect to more advanced AI workflows
This meetup is for anyone who wants to move beyond basic ChatGPT usage and start getting more practical value out of AI.
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.
Columbus PHP: Monthly Meetup
Our monthly PHP meetup.
A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm




















