Java Virtual Machine

I decided I want to open a discussion about this cute little tool that the CEO of NVIDIA called "the biggest breakthrough in software ever." I want to share setups, use cases, and everything in between. I think OpenClaw is super fun — and potentially super useful. 📋 THE AGENDA: • 17:30 — Open talk & intros • 18:00 — Lightning demos: real code, no sales pitches • 19:00+ — Hacker hours: build, debug, explore 🎤 SPEAKERS: ### Talks Vladimír Oraný Principal Software Engineer · Creator of ClawBuddy Hi, I'm Vlad. I've spent countless hours unblocking my colleagues on Slack as a Principal Software Engineer at Agorapulse, and now I'm doing the same with my OpenClaw agents, Jean and Zoidy. I created ClawBuddy, an agent-to-agent mentoring platform, so I wouldn't have to explain to my coworkers how to use OpenClaw when my agents can explain it to their agents much faster without me involved. [LinkedIn](https://www.linkedin.com/in/vladimirorany/) #### 🎤 Security Obstacles of Opening an Agent Platform to the Public Vlad will share the security-related obstacles he ran into when he decided to open ClawBuddy to everyone — not just friends and family. Expect real stories about completion endpoint conflicts, the risks of letting strangers into your API, publishing skills to ClawHub, and how model choice affects endpoint security. **[ClawBuddy](https://clawbuddy.help/)**[World's first agent-to-agent buddy platform. Structured 1-on-1 help between AI agents with human oversight, knowledge transparency, and security guardrails.](https://clawbuddy.help/) #### 🎙️ Speaker Slot #2 — Open **\- Venue** fixed in Prague 1, shared through Luma 🎟️ REGISTRATION: Spots are limited — register through Luma: https://luma.com/l5boronk The final location will ONLY BE SHARED THROUGH LUMA to make sure we have group who alreadyat least played with OpenClaw :) Come tinker with me. 🐱 🔗 LINKS: Website: https://openclawprague.cz Telegram: https://t.me/+q1LLp4JCGSpiMjdk GitHub: https://github.com/1vecera LinkedIn: https://linkedin.com/in/1vecera

Do you want to try drawing but don’t know where to start, what to draw and what to use? We do have an idea… let's start with portraits of strangers! We promise it won’t be as scary as it might sound and maybe strangers you'll draw won't be strangers anymore. We will use playfully techniques to draw each other and just have fun. It is also a great way to meet some people as we will be working with limited places. So everyone gets enough attention and we have enough time to enjoy a little tea, beer or wine together. Light and fun atmosphere guaranteed! Anastasia Haustova will be your workshop host, she will help you through the beginnings of the amazing journey that's called Art. She has not only has an art degree but also experience in workshop hosting for adults, kids and seniors. Feel free to check out her work on instagram: @raw_pigment. You will leave the workshop with a one of the kind notebook of portraits of yourself done by your fellow workshoppers and maybe some new friends! Participation fee: 250 kc per person, this includes the notebook, use of high quality hand-picked materials, answers to all your questions and guidance by Anastasia. Registration for the event[Registration ](https://connect.boomevents.org/en/somethingnew-uqvwe/speed-portraying-creative-slow-friending-thzwi) If you have any additional questions or struggle with the payment method feel free to contact us by email and we can make sure your reservation will be made.

Hallo liebe Java User Group Mitglieder! Diesmal haben wir Thomas Künneth mit seinem Talk zum Thema "**Climbing the Codeberg - Some Developer's Thoughts on Leaving GitHub**" zu Gast. Wir freuen uns euch zu sehen (virtuell oder vor Ort). * 17:45 Uhr: Einlass * 18:15 Uhr: Talk * ab 19:00: Ausklang des Abends Dank an [codecamp:n](https://www.codecamp-n.com/) für Location, Bier und Pizza! \-\-\- As developers increasingly prioritize privacy, digital sovereignty, and true open-source values, many are questioning their reliance on corporate-owned platforms like GitHub. Enter Codeberg—a community-driven, non-profit Git hosting platform funded by donations and powered by Forgejo. But is the grass really greener, and how difficult is the transition? In "Climbing the Codeberg," we’ll explore both the philosophical motivations and the practical realities of leaving GitHub. Walking through a firsthand developer's journey, this talk will guide you through the process of establishing your code’s new home and taking back control of your workflow. In this session, we will cover: * The "Why": Understanding the fundamental differences in philosophy and legal structure between a corporate-owned giant and a non-profit, community-led alternative like Codeberg. * Safe Migration Strategies: Step-by-step insights on migrating repositories (including metadata like issues and releases), proving your identity via Mastodon, and utilizing "tombstoning" techniques to avoid critical security risks like namespace hijacking on your old GitHub account. * Restoring Automation: Leaving GitHub doesn't mean leaving CI/CD behind. We'll dive into leveling up your new environment by setting up local Codeberg Actions runners, exploring both containerized (Docker) approaches and host-level (act_runner) configurations for architectures like Apple Silicon. Whether you are ready to make the full leap to a community-owned forge or simply want to explore what true digital sovereignty looks like, this session will equip you with the tools, commands, and insights needed to successfully summit the Codeberg. \-\-\- 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!

**🔔 IMPORTANT! Please register on Luma page:** https://luma.com/yerjg2ur Join the Prague Networking meetup! We’re getting Creative and Tech folks together to network! **What is it?** Think of it as an Anti-Icebreaker Game. No awkward small talk. No forced networking. We’ll use a set of thoughtfully designed question cards to spark natural, engaging conversations. **What we will do:** No laptops. No presentations. Just people, music, drinks, and cards with prompts to help you connect and get to know each other. You’ll pick questions, share experiences, and find common ground in a relaxed, informal atmosphere. **Who is this for?** Designers, Product Managers, and people from Tech and Marketing who want to meet peers, exchange ideas, and connect with others in the industry. ❗If your plans change after registering, please cancel your spot, it helps someone else join. **When & where** 📅 26.03.26 🕛 18:00 📍 KOLEKTOR [Dukelských Hrdinů 530/47, 170 00 Praha 7-Holešovice](https://www.google.com/maps/place//data=!4m2!3m1!1s0x470b955497bf757d:0x391a110006ecef70?sa=X&ved=1t:8290&ictx=111) 🗣 Language: English Please arrive 5–10 minutes early to grab a drink and settle in before we start (so we can kick off on time). **Agenda** Welcome Question card rounds Networking & conversations Wrap-up **Why We’re Doing This** We started this to bring creative and tech people together in real life, not just online. Prjctr is about meeting new people, sharing ideas, and having real conversations. No pressure, no slides - just good company and fresh inspiration. **Who We Are 🌍** Projector Global Community by [Prjctr Creative & Tech Institute](https://prjctr.com/en) is a network for designers, developers, marketers, and innovators across creative tech. We support knowledge exchange, creative growth, and cross-border collaboration to bring amazing ideas to life. **Hosted by: 🎤** Hosted by [Tania Korab](https://www.linkedin.com/in/taniakorab/), Product Designer at Siemens, [Daniella Kovalenko](https://www.linkedin.com/in/daniella-kovalenko-621678229/), UI/UX Designer and Art Director, [Lesia Astrashanovych](https://www.linkedin.com/in/lesia-astrashanovych-524473175/), Design&Product Recruiter See you at Prague Networking 🎉

Sahaja meditation is spontaneous process based on inner energy which helps to look after physical, mental and emotional being. After self realisation , one can go into meditation effortlessly and attain peace, balance and joy. Program is available for every age group and no physical exercise. The program does help to calm yourself down after day stress and live a peaceful evening. What can you expect from the class: 1) A bit of theory about our suble system, chakras, chanels, meditation erltc. 2) Self realisation - a meditation during which Kundalini energy is awakened 3) Sharing expierence, explaining our perfeptions 4) Guided meditation 5) Q&A 6) Mental peace :) No registration is required. All Walk-IN are welcome and all classes are free of charge.

Free Event/Vstup Zdarma Pro češtinu, podívejte se níže EN Hello, people of Prague!! We bring you a forum to trade your language skills and learn something more. If not interested in language, you could have a general conversation. The goal is to create a chill environment for social networking with a focus on learning the language of your choice. So grab some beverages at the bar/cafe and get on with it every Thursday. **NEW** Venue: Tequila Tales Bar **NEW** Location: Ujezd 409/19, 11800 Malá Strana Timing: 1900-2200 (Every Thursday) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- CZ Ahoj Pražáci!! Přinášíme vám fórum, kde můžete vyměnit své jazykové znalosti a dozvědět se něco víc. Cílem je vytvořit pohodové prostředí pro sociální sítě se zaměřením na výuku jazyka dle vašeho výběru. Takže si vezměte nějaké nápoje v baru/kavárně a pusťte se do toho každý čtvrtek. **NOVE** Místo: Tequila Tales Bar, Ujezd 409/19, 11800 Malá Strana Čas: 1900-2200 (každý čtvrtek)

Weekly Czech Conversation Meetup 📅 Every Thursday \| 🕢 19:30–21:30 📍 Tequila Tales, Újezd 409/19, Praha 1 Are you an expat in Prague learning Czech at A1 or A2 level? Ready to stop just studying and start speaking? Join our Weekly Czech Conversation Meetup – a focused, interactive session designed to help you speak more confidently in Czech through fun, practical, peer-based learning. 🎯 What to expect: Structured, casual Czech-speaking sessions Fun language games, real-life scenarios, group challenges Peer-to-peer learning (no teachers – just motivated learners!) No grammar overload – just speaking and using what you know 🧠 Who is this for? A1 and A2 level learners (not for absolute beginners) Expats in Prague who want to practice Czech in a supportive space People who are ready to actively participate – speaking is a must! 📝 Important: Preparation is required. Each week, you’ll get a short prompt or task in advance. Everyone must come ready to engage. 💬 Why join? Build real-life speaking skills Break the fear of using Czech Meet other motivated learners Get out of your Duolingo comfort zone! 🌍 This is a focused Czech-only session, happening from 19:30 to 21:30, as part of the larger Uninstall Duolingo Language Exchange night every Thursday.

Filozofování o životě a o všem ostatním pro všechny, bez vstupného a bez přihlášky: Co si přejete, s čím si lámete hlavu, co Vás nenechá spát, o čem dumáte, o čem sníte, co Vám vrtá hlavou, čeho se bojíte, na co vzpomínáte, o čem přemýšlíte? Nenechte tyto věci jen pro sebe, zkuste rozhovor s jinými lidmi. U nás nejde jen o to, si popovídat, o to taky, ale to máte i jinde. U našeho stolu se pokusíme, spolu *filozofovat*. Nejdříve se dohodneme, jaké téma budeme diskutovat, a pak se do toho pustíme, budeme přemýšlet, rozmýšlet, promýšlet a zamýšlet se, až se nám z toho bude točit hlava, přitom nám budou podporou filozofové všech věků, abychom jí neztratili, tu hlavu. Ani byste nevěřili, jak filozofie může být osvěžující…

📚 ¿Te gustaría mejorar tus habilidades de lectura y conversación en español? Únete al Club de Lectura en Español, donde practicaremos el idioma leyendo fragmentos seleccionados del libro *El caballero de la armadura oxidada*. La historia nos ayudará a explorar nuevo vocabulario, estructuras gramaticales y expresiones mientras mejoramos la comprensión. **Nivel:** A2–B1 📖 **¿Qué practicaremos?** • Comprensión lectora • Vocabulario clave y expresiones útiles • Pronunciación y práctica oral • Breves conversaciones en español • Comprensión de la gramática en contexto Esta sesión te ayudará a ampliar tu vocabulario, mejorar tu fluidez y ganar confianza al hablar español mientras lees un texto interesante. ✨ **Qué puedes esperar:** – Aprendizaje en grupos pequeños – Ambiente cercano e interactivo – Práctica guiada del idioma – Café de especialidad durante el evento **Precio:** 300 CZK Si te interesa unirte o quieres más información, envíame un mensaje. ¡Tengo muchas ganas de leer y aprender juntos! 📚✨

Hi All, Come and join us for social running and a coffee! We meet at the main gate of Vystaviste - tram stop Vystaviste Holesovice. We will run in Stromovka. Usually we run around 50mins and it is up to everyone how many kilometres. We welcome all levels of runner. We can all run together or, if there is more of us, we can split into groups and at the end of the run we all meet close to the starting point to go for a coffee to a nice local coffee place (where they also sell cakes and great chocolate). If the weather is great, we can also just sit in one of the outside coffee placces in Stromovka and enjoy the sun. This is where we meet: http://photos2.meetupstatic.com/photos/event/7/7/3/1/600_447930513.jpeg

\*\*\*\*\* We're meeting both in-person and virtually via Skype depending on the week. Contact Sonya Lano for more information if you want to join \*\*\*\*\* This is for anyone wanting feedback! We mostly focus on novels and longer works, but short stories are welcome, as well. You can submit anything you want feedback on in any genre. Current word limit for submissions is 4,000 words. Send your submissions by 13:30 the Thursday before the meeting (or we have a grace period during which you can submit a lower limit of 2,500 words if you submit by midnight Thursday evening). Also, if you don't have time to read through everyone's submissions, still join the meeting! We know that busy schedules don't always make finding reading time easy. To submit, use the Dropbox folder. If you don't have access to it, send sonyalakadosch@yahoo.com your e-mail address so I can add you. Looking forward to seeing everyone there! My number in case of any confusion the day of the meeting is 737 118 530 - or on Facebook: Sonya Lano (https://www.facebook.com/sonya.lano) DROPBOX INFO: * add new submissions for the next meeting in the " submissions" folder for the meeting date. Put your name at the beginning of the file name (for example: "Sonya Somewhere in the Dark") * When providing written feedback (not required, but deeply welcome), save the file as a separate document on your device, then mark your changes/ feedback in the saved file. After you're finished, put the file in the "Feedback" folder under the folder for the meeting date and then under the person the feedback is for (e.g. "For Sonya"). * The submissions folder will be replaced within a week after the meeting has taken place. Feedback will be deleted within 2 months after the meeting, so if you need it longer than that, make sure to copy it to your own disk.

Hola tod@s! Tenemos otra reunion este viernes en Cafedu! Sois muy bienvenidos!

WHAT TO EXPECT? An English & Czech-friendly space to explore, reflect, and connect around the theme of HOME. \* Introducing Projekt DomAlma, our origins & story so far \* Contributions from friends & supporters \* Open discussion on the meaning of “home” & collective imagining of the project’s future \* Co-creative session Discover ways to join, contribute, or stay connected!

Hey 👋 We've taken a little break, but we'll be back in full swing soon. In the meantime, let’s finally meet offline. **IMPORTANT! Please register on [Luma page](https://luma.com/fswqhe7q)** Join us for a cozy evening of **casual networking** with designers, creatives, and tech folks — the kind where conversations flow easily and you leave with new ideas (and maybe new friends). No formal agenda, no awkward pitching — just good vibes, real talks, and a space where it’s easy to connect. Come solo or bring a friend — either way, you won’t feel like an outsider 🙂 📅 Date: 28.03 🕒 Time: 16:00 📍 Location: **сheck your email, we'll send you the location soon.**

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

Welcome to Casual Boardgames, where we enjoy classic tabletop games and social deduction games while bonding over good food, drinks, and great conversations. 
We started this group to meet new people and make new friends, and bonding over games in a relaxed atmosphere is a great way to do that. We currently meet near route 23 and Polaris Parkway, and this is close to areas like Powell, Lewis Center, Worthington, and parts of Westerville and Columbus. 
Feel free to bring your own games or play one of the many games our members bring. If you are inexperienced, we will help you learn. 
Here are just a few examples of the kind of games we play. 
Tabletop/board games: Splendor, Catan, Azul, Dominion, 7 Wonders… 
Social deduction games: Code Names, Chameleon, Werewords… 
IMPORTANT: 
1. While we love playing a variety of games and competing, we are not just about the games. We interact and talk while playing, and this leads to a lot of laughter and fun. If you just want to compete and focus solely on the game, then this is probably not the group you are looking for. 
2. Many people join groups like this and never (or rarely) show up after weeks or months. If you join and never really come, we will eventually remove you from the group as a courtesy to our members. Why? Because limiting group conversations (on the app) to regular members makes communication and planning much easier. Also, while it may be rare, it protects members from people who join because they are interested in following a person instead of having a real interest in our group. If you get removed, it is just because you haven’t come, and we follow this protocol as a courtesy to our regular game players.

**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 **Abstract** Web Forms gave .NET developers a powerful abstraction for building reusable UI controls long before design systems were a thing. Web Components finally bring that same idea to the browser natively. This session explores how the Web Forms mindset translates into Custom Elements, Shadow DOM, and HTML templates. We’ll examine how Web Components enable design systems that work across frameworks, how they differ from server‑driven controls, and why they’re becoming a foundational layer for modern UI. Whether you’re maintaining legacy apps or building greenfield projects, you’ll leave with a practical understanding of how to apply familiar patterns in a modern, standards‑based way. **YouTube Link** TBA

Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel. Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger. Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life. Please visit our Official Church Website (http://raysoflightchurch.com) for more information.

Builders, creators, architects, admins, consultants - come one, come all. This one's for you. We're bringing a little friendly competition to the Columbus ServiceNow community while highlighting the cool things people have built on the platform. Five presenters will take the stage to showcase something they've built, solved, designed, or imagined on the ServiceNow platform - and a panel of judges (plus YOU, our amazing audience) will score them live. So basically, America's Got Talent but make it ServiceNow's Got Talent. Bring a notepad if you'd like 'cause you'll definitely be learning something new. Each presenter gets 10 minutes max to wow the crowd with: • A demo • A real-world business solution • A bold idea • A UX transformation • Or a creative use of the platform Judging Criteria: 🏆 Business Value 🚀 Innovation ✨ User Experience This event is about celebrating ideas, sharing knowledge, and showing how ServiceNow can drive both business impact and meaningful user value. Come learn. Come support. Come get inspired. Refreshments and bites will be provided. And maybe next time… you’ll be on stage.

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

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com