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Hello to all! I’m happy to announce our next monthly meetup will take place at **MaMa** (Preradovićeva 18) on **Monday, April 20th**, starting at **6 PM.** We’ve got two interesting talks, and afterward, we’ll head over to **"Old Pharmacy Pub"** (Andrije Hebranga 11) for some networking, so stay with us! \*\*\* **Declarative Generative UI: Schema-Constrained Dashboards Your AI Can't Break** by Vladimir Adamić In 2026 users expect to configure your platform with a prompt. But if you're a platform owner, letting an AI generate arbitrary UI is a non-starter — you can't guarantee branding, correctness, or security. In this talk I'll show you **Declarative Generative UI**: a pattern where an AI agent generates a JSON component tree constrained by a strict schema, and a renderer maps it to predefined React components. The AI picks the layout and wires the data — but it can only use building blocks you've approved. I'll do a live code walkthrough of an open-source observability platform (@kopai/app) that uses this approach in production. We'll trace the full pipeline: Zod catalog → JSON Schema → agent prompt → generated tree → recursive React renderer. We'll look at what works, where it breaks, and how agent skills and schema versioning help make it robust. You'll walk away with a pattern you can apply to any platform that needs AI-configurable UI without giving up control. **Finally fullstack react** by Fran Zekan TBA Happy to see you all at MaMa! Marcela

**Stress** is one of the greatest challenges of modern life. When stress becomes long-lasting, it can quietly turn into anxiety, affecting both mental and physical well-being and increasing the risk of more serious health issues. Through regular **mental hygiene**, we can gently influence our bodies and restore balance. **Autogenic training** is a method that uses focused attention and deep relaxation to reconnect the brain and the body. By activating the natural power of the mind, it helps release stress, anxiety, anger, and fatigue, while supporting concentration and memory. By restoring communication between the brain and the body, autogenic training supports overall health, balance and inner stability. Your donation for this event supports the work of our Club.

Hello Rubyists! This month we're going for something completely different! Well, not really, it's still Ruby related, but it's unlike the other meetups. We'll do a pub style Ruby trivia quiz! A big thank you to [RubyCentral](https://rubycentral.org), in partnership with [GitHub](https://github.com), for making this event possible and for graciously covering the cost of the venue. Their support helps us keep events like this going. After the talks, we'll keep the evening going with the unofficial part of the meetup at the nearby cafe, so stick around for a drink and continue the conversation. See you at BIZkoshnica! \*\*\* **A Ruby Quiz!** by Radan with help from Bruno and Stanko Radan has been testing some AI skills and has spun up a Rails live quiz app just for this occasion. Together with Bruno and Stanko he's preparing weird Ruby questions for the quiz. The app might have been implemented with help from AI but this quiz is for you, no AI assistance allowed! The correct answers will be briefly explained in between questions so you might also learn something.

# Gecko & 3Collective Breakfast: Open Space Meetup – HR po vašoj mjeri! 23 travanj 2026 09:00 - 11:30 Business Club 5, Sky Office 14. kat **Zaboravite na klasične panele. Ovaj put, vi postavljate pravila.** Nakon niza uspješnih druženja, odlučili smo prodrmati format! Sljedeći **Gecko Breakfast** pretvaramo u dinamičan **Open Space Meetup**. Što to znači? To znači da nema “govornika u odijelima” i pasivnog slušanja. Vi ste ti koji donose teme o kojima želite pričati, rješavaju konkretne probleme i dijele stvarna iskustva iz HR prakse. ### Slobodno je još samo 20 mjesta! ### [Prijave ](https://geckohrm.com/hr/gecko-breakfast-open-space-meetup/?utm_source=LinkedIn&utm_campaign=Feed&utm_content=Post&utm_medium=LinkedIn_Feed_Post_2026_04_13.)su besplatne i obavezne. ###

Zagreb language and culture exchange meetup. Chat in many languages, meet new people and plan adventures together. Hey everyone! 👋 As spring arrives in Zagreb and the city wakes up again, we’re keeping Thursdays social with **Small Friday International Zagreb** ([SFIZ.FUN](https://sites.google.com/view/smallfridayinternationalzagreb/)) a relaxed international meetup where locals, expats, Erasmus students and travellers gather to chat, exchange languages, share stories and plan the next adventure. Think of it as Zagreb’s global living room with lively conversations, and that moment when a random Thursday evening decides to surprise you. ✨ Whether you’ve just arrived in Zagreb, been here a while, or live around the corner, you’re very welcome. 📍 **When & Where** 📍 **The Beertija** Pavla Hatza 16, Zagreb 🕗 **Every other Thursday from 8PM** ✨ Free to join: simply grab a drink and support our host bar 🍺🎸 ✨ Open to everyone: all ages, backgrounds and language levels 💬 **What Happens at [SFIZ.FUN](https://sites.google.com/view/smallfridayinternationalzagreb/)**? Expect a relaxed, social atmosphere where conversations flow naturally. 🗣️ La**nguage Exchange** English, Croatian, Spanish, French, German, Italian, Ukrainian, Russian… and often more. 🌍 **Cultural Exchange** Locals, expats, travellers and Erasmus students sharing stories, experiences and perspectives. 🤝 **New Connections** Real conversations, genuine laughs, and the occasional new friend. 📅 **Weekend Planning** People often end up planning hikes, concerts, trips, festivals or nights out together. No formal structure, no pressure, just people meeting people. 🌸 **Why Join in Spring?** Spring is when Zagreb truly comes alive. Magnolia trees bloom across the city, café terraces fill with conversation, and longer sunny days invite people outdoors. Locals stroll through parks, cycle along the Sava, run around Jarun and Bundek lakes, or escape to the nearby Medvednica mountain for hikes and views above the city. At the same time, Zagreb’s cultural calendar blossoms with exhibitions, concerts, festivals and theatre performances, while markets like Dolac overflow with seasonal produce: asparagus, wild garlic, strawberries and fresh flavours of the season. It’s the perfect time to meet people and explore the city together. And many of those plans begin right here, at [SFIZ.FUN](https://sites.google.com/view/smallfridayinternationalzagreb/). 🌍 🍺 **Why The Beertija?** Because it’s more than a bar, it’s our headquarters. Expect: 🌿 leafy terrace vibes 🎸 rock-inspired atmosphere 🍺 excellent beers 🛋️ relaxed living-room energy 🚭 non-smoking indoor space It’s the kind of place where you pop in for one drink and suddenly realise the evening flew by. 💡 **First-Timer Tip** If it’s your first time: 👋 arrive early 🙂 smile and say hello 💬 jump into a conversation Everyone was new once and that’s how all starts. 🌍 **Join the Crew** [SFIZ.FUN](https://sites.google.com/view/smallfridayinternationalzagreb/) is a community built by the people who show up. So if your Thursday evening could use a little more conversation, laughter and international energy, come by and join us. Bring a friend if you like, or come solo and meet new ones. ✨Ditch the screen, grab a drink, meet the world🌍 See you on Small Friday! 🍻 **SFIZ Crew** P.S. Spread the word https://sites.google.com/view/smallfridayinternationalzagreb 🔎 **How to Spot Us** New here? Best trick is to swing by right at the start, that’s when it’s easiest to find the crew and jump straight in, or ask the bar staff about the event ✨ Need quick updates or can’t see us straight away? No worries, our [WhatsApp group](https://sites.google.com/view/smallfridayinternationalzagreb/faq/sfiz-whatsapp-guide-keeping-it-fun-and-respectful) is where you can ask quick questions. 💖 #ZagrebGlobalMingle 💖

**Stress** is one of the greatest challenges of modern life. When stress becomes long-lasting, it can quietly turn into anxiety, affecting both mental and physical well-being and increasing the risk of more serious health issues. Through regular **mental hygiene**, we can gently influence our bodies and restore balance. **Autogenic training** is a method that uses focused attention and deep relaxation to reconnect the brain and the body. By activating the natural power of the mind, it helps release stress, anxiety, anger, and fatigue, while supporting concentration and memory. By restoring communication between the brain and the body, autogenic training supports overall health, balance and inner stability. Your donation for this event supports the work of our Club.

Hallo liebe Java User Group Mitglieder! Diesmal haben wir Nils Hartmann mit seinem Talk zum Thema "**[Spring Modulith](https://spring.io/projects/spring-modulith)**" zu Gast. Wir freuen uns euch zu sehen (virtuell oder vor Ort). * 18:00 Uhr: Einlass * 18:30 Uhr: Talk * ab 19:30: Ausklang des Abends Dank an [qSkills](https://qskills.de/) für Location, Bier und Pizza! \-\-\- Oft sollen Anwendungen in entkoppelten Modulen entwickelt werden, um Ordnung und Struktur in unseren Code zu bekommen und darüber Wartbarkeit zu garantieren. Microservices stellen dafür einen sehr konsequenten Ansatz dar, können aber auch eine hohe Komplexität mit sich bringen. “Monolithen” hingen sind vergleichsweise bequem in der Entwicklung, stehen aber im Verdacht, schnell zu einem unübersichtlichen “Big Ball of Mud” zu werden. Diesem Problem versucht “Spring Modulith” entgegenzutreten. Damit werden Spring Boot-Anwendungen in einer gemeinsamen Codebasis entwickelt (”monolithisch”), innerhalb dieser werden aber Module definiert ("modulitisch"), deren korrekte Verwendung anhand von Architekturregeln kontinuierlich überprüft und sichergestellt wird. Außerdem erweitert Spring Modulith das Spring-eigene Eventsystem, um auch zur Laufzeit für eine Entkopplung der Module zu sorgen. In diesem Live-Coding-Vortrag möchte ich anhand praxisnaher Beispiele eine Einführung in Spring Modulith geben und mit euch diskutieren, welche Konsequenzen sich für unsere Anwendungen daraus ergeben und für welche Szenarien dieser Ansatz besonders geeignet ist. \-\-\- Dein Vortrag bei der Java Usergroup Nürnberg! Hast du dich in letzter Zeit in deinem Projekt oder privat mit einem interessanten Thema beschäftigt? Vermutlich ist das nicht nur für dich selbst interessant! Hast du Lust, selber einmal einen Vortrag bei der Java-Usergroup Nürnberg zu halten? Wir sind nicht nur auf Java-Themen fokussiert, sondern beschäftigen uns gern mit und um alles über Software Entwicklung und IT. Wir wollen bei der JUG nicht nur bekannten Speaker\*innen eine Plattform geben und die neuesten State-of-the-Art Technologien vorstellen. Wir freuen uns auch besonders, wenn wir Themen aus unserem technologischen (Arbeits-)alltag Raum geben zu können. Melde dich gerne bei uns, wenn du dazu Lust hast, wir geben wenn gewünscht gerne auch Hilfestellung bei der Vorbereitung!

This workshop will be held in a hybrid format, allowing you to participate either in person or virtually. ‼️ To help us prepare, please ensure you have registered correctly here : https://gdg.community.dev/events/details/google-gdg-krakow-presents-build-with-ai-4-production-ready-ai-agents-hybrid-workshop/ and selected your attendance preference: **In-Person**: Join us on-site at **EPAM HUB Krakow.** **Online:** Join us via the meeting link Please use **personal gmail account** for registration. We will provide **Google Cloud Credits** to generate a **Gemini keys** for use during the workshop. This session is designed for **beginners and intermediate** learners, if you have no experience with these specific technologies it is a great chance to acquire it! Please be prepared to you your personal laptop. **AGENDA** 🎟️ 17:30 - Registration & Networking 🚀 18:00 - Opening & Setup preparations 🎤 18:10 - Çalgan Aygün - Building and Scaling Secure Agents: MCP, ADK and Cloud Run. Part 1. Unlock the potential of the Model Context Protocol (MCP) to provide AI agents with secure, standardized access to your data and tools. This hands-on session guides you through the end-to-end process of building and deploying a production-ready MCP server on Google Cloud Run. You will learn how to implement robust security for your server and then connect it to an intelligent agent using the Agent Development Kit (ADK). By the end of the workshop, you will have a functional, secure agentic workflow running in the cloud. 🍕 19:10 - Break 🎤 19:30 - Çalgan Aygün - Building and Scaling Secure Agents: MCP, ADK and Cloud Run. Part 2. **Speaker's bio:** Çalgan Aygün is a DevOps Lead at FinalCheck, specializing in providing solutions for individual verification. Previously, he worked as a backend and cloud engineer at QuarPay, focusing on modernizing infrastructure and developing faster payment systems. With a background as a software developer at My Security Analytics, his experience extends to analytics software for business, fraud, and government security. **TIME & VENUE** **📅** April 21th, 2026 (Tuesday) **🕙** 5:30 PM – 20:30 PM **📍** Venue: [EPAM HUB,](https://maps.app.goo.gl/6YjYuCbLQ6Wg454u5)1a Fabryczna, **REGISTRATION ❗** Please register on this page (RSVP) If you plan to visit in person please bring your ID with you.

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

We will have our certified mediums available and you can receive 3 10-minute readings for $20. To keep you safe, we will be following all CDC and Health Dept. guidelines at our psychic fair today. Sitters and readers required to wear a mask. We will maintain a minimum of 6 foot physical distance during readings. Please, if you can, bring your own portable chair to use during your readings. Please note that we are at our wonderful new home at Unity of Columbus, 4211 Maize Road, Columbus, OH

**💖 Speed Dating from Home – Meet Cincinnati Singles Live on Zoom** For this online speed dating version, the host and the people in the room matter as much as the agenda. The experience is designed to feel guided, welcoming, and social. Meet Cincinnati singles from home. We sort the matching, you just turn up. We match you with compatible Cincinnati locals using a quick personality quiz. You'll chat one-on-one on Zoom in short timed rounds while a host guides the session. **Pick your age group and sign up:** - 🌍 **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Cincinnati&groupurlname=refined-journeys-for-local-single-hearts&ar=18-32&face_v=15.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Cincinnati&groupurlname=refined-journeys-for-local-single-hearts&ar=30-46&face_v=15.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Cincinnati&groupurlname=refined-journeys-for-local-single-hearts&ar=40-58&face_v=15.0) **⚠️ Your RSVP doesn't guarantee a place.** Click your age group link below, register, and take the personality quiz to lock in your spot. Limited places. --- 🎯 **Great fit for:** - Anyone curious about speed dating in a relaxed setting - 🔥 Cincinnati locals after personality-matched dates - Introverts who shine in one-on-one conversations 🛠 **What the flow looks like** 1. **Sign up** – Tap the link for your age range above. 2. **Fill in the matching quiz** – Helps us find your ideal matches for the evening. 3. **Join on Zoom** – Click the link, jump on, and the host handles the rest. 4. **Meet your matches** – Cycle through short chats with compatible Cincinnati singles. 🗂 **Quick details** - **Format:** Hosted on Zoom – one-on-one video dates - 🎯 **Location:** From home – all you need is Wi-Fi and a webcam - **Host:** Live host handling rounds and introductions 💡 **Tip:** Just be yourself. That's always the best approach. ⭐ *"I was nervous but the host made it effortless. Met someone wonderful first try."* – Cincinnati single **Frequently Asked Questions** **How long are the chats?** A few minutes each — just enough to get a sense of someone. **What happens after?** **Is my info private?** --- ✨ Register, take the quiz, and connect with Cincinnati locals tonight. 💞 ✨ Short-form version for faster scanning. Fast to read, easy to act on. 🤝 **Community angle** - The structure is designed to help people settle in quickly - The community matters as much as the session itself - The host keeps the pace clear and the room welcoming It is meant to feel like the start of ongoing relationships, not just a single session on the calendar.

**History** [Prairie Oaks Metro Park](https://www.metroparks.net/parks-and-trails/prairie-oaks/) sits along the Franklin and Madison County border, west of Columbus near areas like Hilliard and West Jefferson. The land was part of the broader push in the late 1990s and early 2000s to expand the Metro Parks system into the northwest and western quadrants of the county. Metro Parks began acquiring parcels for what would become Prairie Oaks during the millennium era, as part of a wave of new parks aimed at protecting natural features around Big Darby Creek. Much of the property had been altered by past uses, including farming and quarrying, which left behind pits that later became the Darby Bend Lakes. The park's creation reflected growing interest in preserving remnants of the Darby Plains ecosystem, one of Ohio's original prairie regions that had largely disappeared after European settlement. The park officially opened to the public in 2000, making it one of the newer additions to the Metro Parks lineup at the time. As the 12th park in the system, it joined others acquired around the turn of the century, like Glacier Ridge. Initial access focused on basic trails and the scenic Big Darby Creek, a State and National Scenic River that winds through the property. Restoration efforts kicked off soon after opening, with crews using seeds native to the Darby Plains to replant nearly 500 acres of tallgrass prairie and grasslands. These plantings aimed to revive the open oak savannas that once characterized the area before widespread agriculture in the 1800s. Over the first decade, Prairie Oaks grew in popularity for its mix of restored habitats and recreational features. The former quarry in the eastern section transformed into the Darby Bend Lakes area, where four connected lakes now offer boating, fishing, and a dedicated dog swim spot. Trails expanded to showcase the prairie blooms, especially in summer and fall when asters and goldenrods light up the fields. Partnerships with groups like The Nature Conservancy highlighted the park's role in protecting the Darby Creek watershed, often called one of the "Last Great Places" for its water quality and biodiversity. Visitors from around central Ohio started discovering it as a quieter alternative to busier spots closer in. Restoration work continued into the 2010s, including wet prairie projects on about 190 acres to enhance hydrology and native plant diversity. The park's size reached over 2,200 acres, incorporating more floodplain along Big Darby Creek for flood storage and wildlife habitat. Amenities like parking at Sycamore Plains and Darby Bend Lakes improved access, drawing hikers, kayakers, and birders. Events and programs began emphasizing the prairie theme, from guided walks on blooming seasons to educational talks about pre-settlement landscapes. These efforts helped solidify Prairie Oaks as a showcase for ecological recovery in the Metro Parks system. Today, Prairie Oaks stands out for blending restored prairie with creek-side adventure, just a short drive from the west side. Its history mirrors the Metro Parks' shift toward large-scale habitat restoration in the 21st century. The park continues to evolve with ongoing stewardship, protecting what remains of the Darby Plains while offering locals a place to experience tallgrass vistas and oak openings. Whether paddling the lakes or walking the trails, it's a reminder of how much the region has changed since settlement — and how intentional work can bring some of it back. **Map of the Park** Here is a [map of Prairie Oaks](https://www.metroparks.net/wp-content/uploads/2021/10/POK_map_1980.jpg). **Summary** For this event, we will hike the Coneflower, Alder, and Sycamore Plains Trails, and, depending on conditions, the Osage Opening and Tall Grass Trails, or Lake View, Mound, Darby Creek Greenway, and River Rock Trails around the lakes. Either way, we'll go around 4.5 to 5 miles. For the most part, this won't be a terribly strenuous hike; Prairie Oaks tends to be flat. However, some of the hike won't be shaded, so be prepared for the possibility of some sun. Parts of the trails may also be muddy or wet, so I recommend [hiking shoes](https://www.amazon.com/dp/B0D972KN3W) and a change of socks. **Where We'll Meet** * Enter the Park at the main entrance at 3225 NE Plain City-Georgesville Rd. If you put "Prairie Oaks Metro Parks" into your Google Maps, it should default to this main address (but double-check to be sure). * After you enter the Park, the first parking lot on your right is the Park Office. Keep driving past this lot. * Enter the second parking lot you come to (which is also on your right). There's a picnic area, playground, and latrine here. There's no water fountain, though, so I recommend you bring water of your own, at least for after the hike. * I've included a screen shot in the Photos, below, where I've circled in blue the main Park entrance as well as the picnic area we're meeting at. **After the Hike** After we're done surveying the prairie grasses, we'll head over to [Crooked Can Brewing](https://crookedcanohio.com/) for [drinks](https://www.crookedcanohio.com/beer) and [food](https://www.crookedcanohio.com/center-street-market). The brewery has an entire food court, and they have a large free parking lot next to the [Early Television Museum](https://www.earlytelevision.org/). The actual address of the brewery is [5354 Center St, Hilliard, OH 43026](https://www.google.com/maps/place/5354+Center+St,+Hilliard,+OH+43026/data=!4m2!3m1!1s0x883893f9ede6d5fb:0xbecf42d7055d9006?sa=X&ved=1t:242&ictx=111). We should be there by 5 if you can't make the hike and just want to join us for drinks.

12:45-3:45 p.m. in Conference Room A, Library lower level. Bring your yarn projects, meet new friends. If you plan to attend, please RSVP yes. If you can’t attend, please change your RSVP to no. This helps anyone who is waitlisted and it allows me to have an accurate count of attendees as our space is quite limited. Plenty of parking in the lot, in the overflow lot across the street, and on the street. See you there!

**🦋 Online Speed Dating – Real Detroit Locals, Live on Zoom** We pair you by personality and age so every conversation feels natural. Quick, hosted rounds on Zoom with Detroit singles paired to your age group and personality. No awkward pauses — just natural conversation. **Choose your age range to register:** - 💡 **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Detroit&groupurlname=dynamic-local-singles-speed-dating-meetup&ar=18-32&face_v=3.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=430.0&productType=onlineSpeedDating&city=Detroit&groupurlname=dynamic-local-singles-speed-dating-meetup&ar=30-46&face_v=3.0) **⚠️ RSVP alone won't secure your spot.** You need to register through your age group link below and complete the personality quiz. Places are limited. --- 👥 **Best for:** - 🔥 Busy professionals who don't want to waste evenings - People re-entering the dating scene after a break 🛠 **What the flow looks like** 1. **Register** – Select your age group above and sign up. 2. **Take the personality quiz** – We use it to pair you with compatible Detroit singles. 3. **Join on Zoom** – Click the link, jump on, and the host handles the rest. **At a glance** - **Format:** Hosted on Zoom – one-on-one video dates - **Location:** From home – all you need is Wi-Fi and a webcam ⭐ *"So much better than apps. Actual conversations with real people."* – Detroit attendee **Frequently Asked Questions** **How long are the chats?** A few minutes each — just enough to get a sense of someone. **What's the personality quiz for?** **What happens after?** --- ✨ Register, take the quiz, and connect with Detroit locals tonight. 🦋 ✨ Quick version: this one gets straight to the point. Fast to read, easy to act on.

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia