Reactive Programming

Welcome to the Competitive Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Players are accepted into the session based on skill suitability. This session is for experienced players looking for quality games. Play is focused on doubles with a competitive mindset and consistent rallies. You should be comfortable smashing, return smashes and keeping up a moderate tempo throughout the session. New players and those who are new to badminton are welcome to join the PM Session (Open Level Play). Payment can be made via TWINT after the session.

Hello everyone, Welcome to this new beach volleyball openplay at Zürich Buchlern 🤗 During this event, you’ll have the chance to meet new people, play friendly matches and learn the basic techniques, if you wish. This event is aimed at everyone that has never played before or a long time ago and is not sure to be able to pass the ball properly over the net or to someone. If you think you're comfortable playing, I invite you to join the advanced events of Marius: [https://www.meetup.com/meetup-group-avsypajv/.](https://www.meetup.com/meetup-group-avsypajv/.) **Tips:** \- Bring a water bottle \(there's a drinking fountain next to the courts\) \- Bring **sunglasses**, sunscreen and a cap \- The courts can usually be watered\, except in rare cases \- so it's good to bring suitable socks if it's hot **Practical details and participation conditions:** \- A small contribution is required for court rental and other organisational expenses\, please pay before the event via TWINT at \+41784053495 by **writing your name and date of the event** or cash the day of the event. \- For any inquiries\, please **only message me on Meetup** \- Please only sign up through Meetup for an easier organisation \- Please cancel at least 24 hours in advance if you can’t make it\, so others can sign up or I can reschedule the session \- If you don't cancel and do not show\, cover your share to keep it fair for everyone\. \- If it's raining\, the event will be cancelled as it's difficult to book 2 indoor beach courts\. **Price per person:** CHF 6.5 **!No shows!** Lately, there has been quite some no-shows. Therefore, I remind you to sign out 24 hours before the event if you're not sure to come. So that people in the waiting list can join instead. The court is not free, any no-show means wasted cost. In case of a no-show and no payment, I have no choice but to impeach you from signing up again by excluding you from the group 😣

We are back for another round of a Lock Picking & Soldering Dojo, presented by DC4131. This is a hands-on technical workshop featuring finessing your skills at lock picking and/or soldering (#BadgeLife) [DEFCON Switzerland members ](https://www.defcon-switzerland.org/#pages/portfolio)will have priority to available spaces & equipment. Spaces & hardware are limited and thus are provided in a 1st come 1st serve basis. In this edition, we invite you to explore and experience lock picking and soldering (#BadgeLife), taught by Vratko, Salvatore Pascal and Remy. Don't miss out on a great day of fun, and who knows where these newly acquired skills may come in helpful..... ;) Stay Legal. **What can you expect?:** **14:00** \- Intro presentations to soldering safetys\, challenge area\, couch lockpicking **Soldering Workshop (#BadgeLife) -** **14:00 - 17:30** \- Drop in/out style \- DIY Soldering (Beginner and advanced) Soldering-Kits available and free for all [official DC4131 members](https://www.defcon-switzerland.org/#pages/portfolio), and also available (with a small charge) to non-members, while supplies last. **Lock Picking Workshops -** **14:30** \- Intro to the basics \- Hands\-on lock picking tutorials **15:30** \- Challenge\! Competition Introduction \- What's at stake to win\! **15:45** \- Advanced lock picking tutorials **16:30** \- Challenge\! Competition **17:00** \- Competition Finals and Winner Award Ceremony **18:30** \- Close Down If you're still not a DC4131 member, and would like to join the family, drop us a mail at ***membership[@]defcon-switzerland[.]org***, and we'll get you singed up in no time! :)

# Finde deine Muster und Programme - entdecke dich! Lass alte Programme los! The Game of noncoincidence STELL DIR VOR, DU KÖNNTEST DEINE WAHRHEIT UND DEINE INNERE WELT WIE IN EINEM SPIEGEL BETRACHTEN "THE GAME OF NONCOINCIDENCE" Stell Dir ein Spiel vor, das Dir wie ein Spiegel die Wahrheit zeigt. Das „Spiel des Nicht-Zufalls" hilft Dir bei der Selbstentdeckung. So kannst Du Lasten, Illusionen und innere Blockaden lösen und tiefe Einsichten gewinnen. Jede Herausforderung ist dabei kein Zufall, sondern führt zu Klarheit, Wachstum und einem tieferen Verständnis Deiner selbst. Erforsche Deine innere Welt Liebe Transformation Ängste auflösen Arbeit mit dem inneren Kind Wahrheit Achtsamkeit Klarheit gewinnen Perspektive Anmeldung unter [info@om-center.ch](mailto:info@om-center.ch) oder Telefon 076 2626329 Energieausgleich auf Spendenbasis (mindestens 40.-) mehr Infos auf www.om-center.ch

Welcome to the Open Level Play Session. This session takes place every Saturday from 12:15 to 13:45 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Open to players of all skill levels. This session is for doubles with a relaxed and social focus. Ideal for casual play, improvement and meeting new players. Payment can be made via TWINT after the session.

Join us for a street photography workshop along Zurich’s vibrant lakefront and riverside, ending in the winding alleys of the old city. Participants of the workshop will have a particular street photography mission (assignment), starting first as a group and then splitting into separate teams. We're meeting in front of the Opera House – facing Sechseläutenplatz If you would like to join the workshop, please add yourself to the waitlist! The organizer of the workshop will move the participants to "Going"!

Welcome to the Open Level Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Open to players of all skill levels. This session is for doubles with a relaxed and social focus. Ideal for casual play, improvement and meeting new players. Payment can be made via TWINT after the session.

Hi there! I’m happy you have come across **Afro Dance Fitness classes**! Are you interested in group fitness (all levels) or dancing, Afrodance and Working out in a group of likeminded women to Afrobeats music, then this is for you! Afro Workout is an Afrodance inspired Dance Fitness Class in Zürich that combines dynamic dance moves and intensive Workout to Afrobeats. Similiar to Zumba but to Afro music including dance movement, fitness and sculpt. Afro is all about Good Vibes! Expressing a joy of living, to be confident and feel good in your body. This class takes place on **Saturday from 10:30-11:30** in Zürich Wiedikon, 10 min from HB Zürich. We run other classes during the week, check the other times. For all levels! You don’t have to be a dancer or a fitness geek. Party, Dance and sweat with us to Afrobeats! First class is always free for first timers! Sign up for the FREE class [Free class](https://afroworkout.as.me/free-class) Single class: 28.- CHF 10-class Package: 250.- CHF Please always sign up and RSVP to every class, via Meet up Event, [Email](vanessa@afroworkout.com) vanessa@afroworkout.ch, DM on Instagram or Sign up link on Website. There will be always more people in a class then shown on Meet up. Don‘t hesitate to sign up via above mentioned channels. Can‘t wait! Check daily updates and classes on [Instagram](https://instagram.com/afroworkout.ch?igshid=YmMyMTA2M2Y=) Website for more information and class info [www.afroworkout.ch](https://www.afroworkout.ch) Move, Dance and Stay Fit to Afrobeats!

Join the Language Exchange to meet new people, practice your foreign languages and spend a good time together. We will serve free tapas such as Bruschetta, Wedges, Nachos or similar. **How it works**: Choose the country flag sticker of the languages that you speak or want to practice! Seat on the right language table and start your conversation with our conversation topic cards. Watch this short [Youtube video](https://www.youtube.com/shorts/mDm3SWN3GPI) to know what to expect! Average group size: 25 participants **When**: Every Saturday, 20:00 - 22:00 **Where**: 2.Akt Zürich **Price**: 10.- incl. Snacks **Tickets**: https://tinyurl.com/LX-23-05-26 (please buy ticket online) **WhatsApp Group**: https://chat.whatsapp.com/8jkvEUJ5jLp75fYglQFCNJ (join for updates & pics) **After the Language Exchange:** Pub Crawl (optional) For those who want to continue the night, we have a Bar Tour starting from the same place at 10PM. Watch [this video](https://www.youtube.com/shorts/VrBFWgXQNhw) to know what expect! Language Exchange participant get a 10fr discount when buying the combo-ticket online. Your Event Hosts Sébastien & Katja, Fernando More info: [https://www.pubcrawlzurich.com/languageexchange](https://www.pubcrawlzurich.com/languageexchange) Event pictures? Follow us on [IG](https://www.instagram.com/languageexchangezurich) and [FB](https://www.facebook.com/zurichlanguageexchange)

**[Application needed! Click here](https://luma.com/1m6k3xrk)** **Meet new people in a way that actually works.** ​Join a unique monthly experience designed to bring together like-minded people over drinks — no awkward crowds, no endless swiping. Just real conversations at a table for four. ​Each event matches you with a small group based on your preferences. Whether you're looking to make new friends, explore dating, or stay open to both, you’re in control — you only pay if there’s a mutual match. **1\. Apply** **2\. On Wednesday you receive the list of people you could match with** **3\. On Thursday we tell you if there is a match and where to meet your group** **4\. You meet your group on Saturday and receive all the info regarding the surprise afterparty\!** Join our WhatsApp chat to keep up with the event: [https://chat.whatsapp.com/FoJN0DzRQgF232huSHiGOi](https://chat.whatsapp.com/FoJN0DzRQgF232huSHiGOi?utm_source=luma) (if you run into trouble open it in WhatsApp Web on your desktop) ​How it works is simple: sign up, receive a curated list of potential matches, and select the people you’d be happy to meet. From there, everything is taken care of. If it’s a match, you’ll be invited to a carefully selected bar where you’ll meet your group. ​And the night doesn’t end there — everyone who shows up unlocks access to a surprise after party at a secret location. **​4 people. 1 table. Real connections.** 📸 Photos and short videos may be taken during the event. Let the host know if you prefer not to be in them. Tickets are non refundable. ​Want more events like this? Join our community! [https://chat.whatsapp.com/KWSK2jINyuG9uHHjtxfnmP](https://chat.whatsapp.com/KWSK2jINyuG9uHHjtxfnmP)

Outstation: https://marathonvalais.ch/en/

Open Sharing Circle ✨ *** **Wichtig: Bitte sei pünktlich, damit der Austausch möglichst nicht gestört wird :)** Wir sind draussen bei der Blatterwiese. Es wird sonnig und warm werden. Zuerst machen wir einen Sharingcircle und danach klingen wir den Tag aus mit Spielen (Brettspiele, Spikeball, acrojoga etc) und BBQ. Nimm dein Lieblingsspiel mit, wenn du eines hast, wie auch Essen für dich. _____________ Dieser Circle findet auf Deutsch statt. Wir kommen zusammen, um im Moment präsent zu sein und uns so zu zeigen, wie wir wirklich sind. Die Intention ist, in einem sicheren und vertrauensvollen Raum zu teilen — Gedanken, Emotionen, Ziele, Meinungen — alles, was sich für dich im Moment lebendig anfühlt. Niemand muss etwas teilen, und jede\*r ist willkommen. ⸻ Worum geht es? • Stärkung von Selbstwahrnehmung & Selbstvertrauen • Persönliches Wachstum • Aufbau tiefer Beziehungen & Vertrauen • Menschen auf einer echten, menschlichen Ebene kennenlernen • Sich frei fühlen, sich authentisch auszudrücken ⸻ Circle-Vereinbarungen Frei & freiwillig Du darfst alles teilen, was du möchtest — und musst nichts teilen. Sprich aus deiner eigenen Erfahrung Teile aus deiner persönlichen Perspektive: deine Erfahrungen, Gedanken, Gefühle und Wahrnehmungen. Der Raumhalter kann dich dabei sanft unterstützen, indem er als Zeichen eine Hand auf die Brust legt. Respekt & Vertraulichkeit Wir begegnen uns respektvoll und ohne zu urteilen. Was im Circle geteilt wird, bleibt im Circle. Rede-Objekt Nur die Person, die das Rede-Objekt hält, spricht. Verständnisfragen sind willkommen. Redezeit & Raum teilen Nimm dir Zeit beim Teilen und lass gleichzeitig Raum für andere. Ratschläge & Unterstützung Sprich für dich selbst und gib Ratschläge nur mit Einverständnis. Bitte frage ausdrücklich nach, wenn du Ratschläge oder Unterstützung möchtest. Trigger & Emotionen Jede\*r ist für die eigenen Gefühle und Themen selbst verantwortlich. Starke Emotionen (z. B. Weinen) sind willkommen und werden respektiert. Unterstützung wird nur angeboten, wenn sie gewünscht ist. Eigene Bedürfnisse Kümmere dich selbst um deine Bedürfnisse (WC, Essen usw.) und respektiere den Gruppenraum. Raumhalter Das Organisationsteam wählt Raumhalter, die den Ablauf des Circles unterstützen und darauf achten, dass die Vereinbarungen eingehalten werden. Der Circle kann bei Bedarf sanft unterbrochen werden. Fokusrunde Der Raumhalter kann intuitiv eine kurze Fokusrunde initiieren, wenn es unterstützend wirkt. Mobiltelefone Bitte schalte dein Handy auf lautlos und nutze es nur für Notizen, falls nötig. Zeit Dauer: ca. 3 Stunden. Du kannst jederzeit gehen, idealerweise während der Pausen (etwa alle 45 Minuten). Nach dem Circle gibt es Raum, um zu bleiben, sich zu verbinden oder weiter zu teilen, wenn du magst. Teilnahme CHF 5 Basisbeitrag + freiwillige Kollekte. Damit unterstützt ihr Organisation und ermöglicht es uns, den Sharing Circle möglichst vielen Menschen zugänglich zu machen. Bezahlung: Bar vor Ort oder per Twint an +41 79 123 16 74

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

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/

**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** TBD

**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

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.

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.

PLEASE NOTE!!! This event will be In-Person for our very 1st Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 1st event and are doing a soft launch with limited attendance. 1st come 1st serve. If you want to be there and we fill up, please email me at [info@thecogg.com](mailto:info@thecogg.com) and I'll be in touch. All street parking is free on Sundays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at info@thecogg.com with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)