Computers

Lerne wie ein 3D Drucker funktioniert, und worauf du alles bei der Nutzung achten solltest. Du bist schon Member im Maschinenraum? Je nach Nutzungsmodell, bekommst du einen Teil der Gebühr als Guthaben auf dein Fabman Konto rückerstattet.

Hallo liebe Java User Group Mitglieder! Diesmal haben wir zwei Bonner Kollegen zu Gast: * Martin Stoller: **Backend-Performance in Hochlast-Systemen: Lösungsansätze aus dem Data Engineering** * Andreas Monschau: **Zehn goldene Regeln, um dein Softwareprojekt zuverlässig zu ruinieren** Wir freuen uns euch zu sehen (virtuell oder vor Ort). Dank an [codecentric](https://www.codecentric.de/standorte/nuernberg) für Location, Bier und Pizza! ================= Viele Hochlast-Systeme beginnen als kleine, unscheinbare Prototypen - gebaut mit bewährten Mitteln wie relationalen Datenbanken, objektorientierter Business-Logik und klassischen Request-Response-Architekturen. Doch was passiert, wenn diese Systeme plötzlich nicht mehr Tausende, sondern Millionen von Requests bedienen oder Terabytes an Daten verarbeiten müssen? In der Praxis zeigt sich häufig: Klassische Optimierungen wie Caching, horizontale Skalierung oder effizientere Algorithmen stoßen irgendwann an ihre Grenzen, weil sie innerhalb desselben Paradigmas bleiben. Dieser Vortrag zeigt, warum echte Skalierbarkeit oft ein Umdenken erfordert. Anhand eines durchgehenden Praxisbeispiels wird schrittweise demonstriert, wie sich ein System von einer latenzoptimierten Request-Response-Architektur hin zu einem durchsatzoptimierten, analytischen System entwickelt. Dabei werden zentrale Konzepte aus dem Data Engineering greifbar gemacht - darunter Precomputation, Batch Processing, deklarative Verarbeitung und Denormalisierung - und in den Kontext klassischer Backend-Entwicklung eingeordnet. Die Teilnehmenden lernen, typische Grenzen traditioneller Architekturen zu erkennen und erhalten ein alternatives Denkmodell, um High-Throughput-Systeme gezielt und nachhaltig zu skalieren. ================= Softwareprojekte sind chaotisch, anstrengend und voller Überraschungen. Und ganz ehrlich: So soll es auch bleiben. Ordnung würde ja nur den Spaß verderben. Trotzdem gibt es immer wieder Menschen, die glauben, man könnte Projekte wirklich zu Erfolg führen… unglaublich, oder? Damit dir so etwas nicht passiert, zeige ich dir in diesem Vortrag, wie du ein Softwareprojekt in 10 einfachen Schritten zuverlässig an die Wand fährst. Die „goldenen Anti-Pattern für maximalen Projektschaden“ entstammen jedoch nicht meiner Fantasie, nein, sie werden in der Realität täglich mit beeindruckender Konsequenz praktiziert. Und das Beste: Sie wirken nachhaltig. Manche dieser Muster entfalten ihre volle Zerstörungskraft erst Monate später. Nachdem du alle Regeln kennengelernt hast, kannst du selbst entscheiden: Möchtest du sie weiterhin anwenden, oder vielleicht doch etwas verändern? Solltest du allerdings inspiriert sein, eines dieser Anti-Pattern künftig noch konsequenter zu leben… dann sollten wir uns nach dem Talk dringend unterhalten. ================= 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!

Dear all, we’re back with the PyData meetups, focused as always on sharing best practice, methodologies, analysis, machine learning systems, .., with the open-source projects of the [NumFOCUS](https://numfocus.org/sponsored-projects) program — but not only! We’ll meet **#InPresence on Thursday, June 18 at 7:00 PM**. We’ll be hosted by [Anda Venice Hostel](https://www.andavenice.com/) in the Medusa Room and, for those who cannot join us, it will also be on [YouTube](https://www.youtube.com/watch?v=I2P_IKlS3V0) in **#streaming**. 👥 We’ll have two interesting sessions one in Italian 🇮🇹 and one in English 🇬🇧: 🗣 [Fabio Lamanna](www.fabiolamanna.it), one of *PyData Venice* founders, will present an analysis of the real impact of "Bologna **#City30**", the 30 km/h limit, using **#FloatingCarData** (**#FCD**) with **#QGIS** and #Python to compare pre/post driving speeds and measure how much the city respects the new limit. 🗣 [Claudio Giancaterino](https://www.linkedin.com/in/claudiods/) will show a **#MultiAgent** system that turns car damage photos into an insurance claim assessment in minutes, where an Orchestrator coordinates a Vision Agent (**#GPT-5.2**), OEM/Aftermarket Cost Estimation Agents (**#Perplexity**), and a Shop Finder Agent, each running a transparent **#ReAct** reasoning loop to return damage severity, comparative repair costs, and recommended shops. And afterwards\, for those who want\, we’ll stay there for \( 🍸 \| 🍺 \) & \( 🍕 \| 🍔 \) and **#networking** until late ‼️ 📽 And if you’d like to share ideas, projects, topics, or propose yourself as the next speaker, here’s the usual [Google form](https://forms.gle/rVMWxFnodHaNb9ab9) or [Sessionize](https://sessionize.com/pydata-venice-2025-12-18) !

Open Heart Meditation Sessions with Amrita Rani (Live in-person and online on selected Thursdays via Zoom) You are warmly invited to join the Open Heart Meditation Sessions with Acharya Amrita Rani — a living space of awakenings and direct experience. These sessions are created both for beginners and seasoned practitioners who wish to deepen their meditation practice, stabilize awakening, and walk the path of enlightenment with guidance and support. Whether you are new or experienced, each gathering offers a grounded structure to help you build consistency in daily practice and grow in confidence on your spiritual path. At the heart of Open Heart teachings is direct recognition. Through the Two-Part Formula and precise meditative guidance, you are supported in shifting from self-based mode into selfless awareness, again and again, until cessation of suffering takes place. A central and deeply transformative practice in Open Heart is guru yoga. Through guru yoga, the practitioner directly connects with awakened awareness through devotion, transmission, and experiential recognition. With the help of this profound method, one recognizes their true selfless ease, the natural, effortless state beyond space and time. Alongside guru yoga, the sessions include insight meditation (Vipashyana), tantric methods, dynamic concentration, trauma-healing techniques, and foundational practices such as Bodhicitta prayers. Each session includes guided meditation, space for questions, reflection, and personal support. Rani’s meditation sessions are held live on Zoom on selected Thursdays from 18:30 to 20:00 (CET). Recordings may be available for continued integration and practice on her YouTube channel, The Sweetness of Enlightenment. Participation fee: 15 € per session Please make your payment in advance via PayPal before joining, to Rani’s PayPal account: kaisaeskeli@gmail.com Upcoming Thursday Sessions for Spring and Summer Season: 7.5.2026 at 18:30–20:00 (CET) 14.5.2026 at 18:30–20:00 (CET) 4.6.2026 at 18:30–20:00 (CET) 11.6.2026 at 18:30–20:00 (CET) 18.6.2026 at 18:30–20:00 (CET) 25.6.2026 at 18:30–20:00 (CET) 2.7.2026 at 18:30–20:00 (CET) 9.7.2026 at 18:30–20:00 (CET) 23.7.2026 at 18:30–20:00 (CET) 30.7.2026 at 18:30–20:00 (CET) Zoom link for all sessions: https://us02web.zoom.us/j/89766267672 Open Heart ashram (meditation center) is located in Zgornje Gorje, Slovenia. If you feel called to join in person, please email Rani at kaisaeskeli@gmail.com. Welcome all!

Singen, Lachen und es lustig haben. Wir versuchen soviele Töne wie möglich zu treffen und das ganz ohne Autotune.

Die Vorarlberger Spieleentwickler treffen sich wieder! Du interessierst dich für Spieleentwicklung, oder bist sogar schon Spieleentwickler/In? und suchst nach Gleichgesinnten? Dann bist du bei der #inDIdev Initiative der DI genau richtig. Wir sind eine gemütliche Truppe die sich gerne über Spiele und deren Entwicklung austauschen. Es sind von Spielern, die sich einfach für das Thema interessieren, über Hobbieentwickler bis hin zu Vollprofis, die bei Spielen von Großen Entwicklerstudios mitwirken, alles vertreten. Es darf sich jede/r angesprochen fühlen, der oder die sich für Spieleentwicklung, Design, Animation, Pixel Art, Storytelling etc. interessiert. Keine Anmeldung nötig, schau einfach vorbei.

Want to become a certified Claude AI Architect? Spend this summer learning skills that employers are actively looking for. AI Architects, AI Agents, MCP, prompt engineering, and agentic systems are becoming some of the fastest-growing areas in tech. Want to be part of it? TechLegion Summer School 2026 was created to help you learn these skills, prepare for an official certification, and connect with a community of professionals doing the same. As a partner in the Claude Partner Network, TechLegion offers members the opportunity to prepare for and earn official Anthropic certifications through our dedicated study cohort. 🤖 Registration for cohort: https://linkly.link/2kCF8 The study cohort is free for TechLegion members. Please note that TechLegion membership is required to join the programme, as participants receive a TechLegion email account and access to member resources under our domain. Learn together. Get certified. Build your AI skills this summer!.

**Join Anne in the cosy Bubble Yoga studio or online to close your week wrapping yourself in the softness of this Yin practice.** Landing from your day with soft movements and some myofascial release elements, leading to soothing yin and restorative poses. Embracing stillness and simplicity to restore balance and nourishment. Welcome to your Sunday night cocoon. **Class in English // Open to all levels** **Join at the studio or live online via Zoom.** **\>\> Registrations mandatory [HERE](https://bubbleyoga.ch/yoga/schedule/).** Yoga mats & all equipment available at the studio. Simply bring comfy clothes to move. **Pricing options:** '2 for 1' Welcome Pack CHF 35 1 month unlimited Intro Pass CHF85 ZOOM Drop-in class CHF20 STUDIO Drop-in class CHF35 / Abos available. All details available on [http://www.bubbleyoga.ch](http://www.bubbleyoga.ch/) Come as you are & bring your friends! *** Bubble Yoga Kirchgasse 12 9000 St. Gallen *NB: The entrance door is at the BACK of the building, from the pathway facing Magnihalden fountain*

**Join Anina every Sunday morning for an open level Hatha Yoga class!** This class is our way to #GiveBack to our Community, making yoga accessible to all with a reduced class price. It is an invitation to come together and share our love of yoga to serve others. The funds collected with the Community Classes are donated in equal parts to the Yoga Medicine Seva Foundation and Paréa SG, supporting broader communities through your own practice. Expect a balance of postures, breath and meditation practices, led each week with a specific theme drawn from the yoga philosophy - reflecting on how your practice on the mat can also nourish your daily life. **Class in English // Open Levels** Space is limited to 10 students. **\>\> Registration is mandatory [HERE](https://bubbleyoga.ch/yoga/schedule/).** Donation price is on 'pay what you can' basis, starting at CHF10. Yoga mats & equipment provided at the studio, simply come with comfortable clothes to move. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- The **Yoga Medicine Seva Foundation**'s mission is to fight human trafficking and sexual exploitation by empowering global, impoverished communities through efforts of education and entrepreneurship. You can learn more about the foundation [here](https://yogamedicine.com/india-seva/). **Paréa St. Gallen** supports humanitarian projects for displaced people at Europe’s borders. Every contribution goes directly to projects that provide safety, dignity, and essential resources to those in need. Additionally, Paréa SG organises events and campaigns to raise awareness about refugees' reality, aiming to foster understanding and solidarity within Swiss society.

Tickets and more information: [https://barflirt.ch](https://barflirt.ch/en/product/%f0%9f%92%98-single-party-alter-38-50-oya/) The Singles Party in St. Gallen on Friday, June 19! 💖 In the heart of St. Gallen at OYA (indoors and outdoors), which has been rented out exclusively for us. The singles event for everyone who wants to experience an evening full of exciting flirting! You won’t want to miss this! 😍 Leave your phone behind and immerse yourself in a real-life world full of charm, humor, and flirtatious vibes! Because at our event, it’s not just about chatting and drinking—it’s also all about flirting! Highlights of the evening: 🍕 Free snacks for you 🍸 Free welcome drink for everyone—each person receives a free welcome drink (including non-alcoholic options) upon arrival to toast and break the ice. Perfect for that first flirt. 🎲 Game to make connections: Find your perfect match with our Love Animal game. 💖 Free online voting and matching: The next day, you can vote online to see who you liked. If the spark is mutual: 🎯 It’s a match! You’ll automatically receive each other’s contact information. No additional subscription required—everything is included in the price. Here’s how your BarFlirt party evening works: You’ll meet up with around 60 exciting singles at OYA Bar & Klub in St. Gallen, which has been rented out exclusively for us. Flirt, laugh, and enjoy the evening together with light snacks, fine drinks, and a relaxed atmosphere. 🍸 But that’s not all: the next day, you can anonymously indicate in your profile who you liked and if you’re interested in meeting again—all without any pressure. If there’s a mutual spark, you’ll have a match, and we’ll share your contact information. Easy, charming, and perfect even for the shy ones. 😉 Maybe your next date is already waiting for you. Don’t miss the chance for an evening full of excitement, music, and new possibilities! 💘

Hey zusammen 👋 Wir machen ein kleines Grill-Chill-/Surfer & Friends Meetup am Rorschacher See. Infos folgen.

The monthly Zen meditation retreat at Lambda Zen Temple is a three day meditation retreat, where we reexamine the true self through a very simple hermitagelike life-style. The retreat starts monthly every third Friday at 10am (10:00) and ends Sunday at 3pm (15:00). Everyone concentrates her consciousness on the given task while working. To work is to cleanse the mind. Work is an opportunity to meditate and become awakened to the real self. A small event in daily life can become an important moment of awareness for one who is in great darkness. Only through your determined and thorough examination of body and mind, worth and harmony can be formed. *SCHEDULE* Friday 10:00 Sitting Meditation 12:30: Lunch, then informal tea 14:00 Module 18:30 Dinner 19:15 Sitting Meditation 23:00 Lights Out Saturday 4:00 Sitting Meditation 5:45 Breakfast 6:30 Walking Meditation, full day hike ~18:00 Dinner 1h Break ~19:15 Sitting Meditation 22:00 Lights Out Sunday 6:30 Sitting Meditation 8:00 Breakfast Working Meditation Lunch 30min Break Cleanup and Packing 14:00 Sitting Meditation 15:00 End of retreat Module (not freely selectable): Meditation, Working, Cooking, Hiking, Gardening, etc. The schedule can vary. *Etiquette* We eat what will be served and are grateful. The Zen temple etiquette gives a framework to consciously carry out and process your own words and actions. *Meditation* Life and death are the great matter. Be watchful of your time. All is impermanent and passes swiftly away. Time waits for no one. *READ BEFORE YOUR RSVP* Study the introductory information, especially the daily schedule, the etiquette and the Q&A. Make sure to understand and accept them. Please find the introductory information here: https://zen-temple.net/zen-meditation-retreat/

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).

**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** *Customize the IDE: Building Extensions for Visual Studio Code* Visual Studio Code is one of the most widely used development environments today, and much of its flexibility comes from its extension ecosystem. Extensions allow developers to customize the editor with new features, integrations, and workflow improvements tailored to their needs. In this session, we’ll cover what extensions are and the different types available, including full extensions written in TypeScript or JavaScript, along with lighter-weight extensions such as color themes, language packs, language support, code snippets, and keymaps. We’ll also look at practical reasons a developer might create an extension, from automating repetitive tasks to adding custom tooling. The session includes a hands-on walkthrough of creating a new extension, testing it locally, and understanding the basic project structure. We’ll close with a brief overview of how extensions are packaged and published to the Visual Studio Marketplace and other distribution options. **YouTube Link** TBD

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**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: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. 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

Whether you've never done improv before, or you've done it for so long you were quoted in *Truth in Comedy*, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup**! The idea behind improvised comedy is to create entire scenes from scratch. A suggestion is taken from the audience and laughter is built on the spot. This can be done in game form, like *Whose Line Is It Anyway, Make Some Noise,* or *Wild 'n Out*; it can also be done in a longer way, to tell a complicated story, like *TJ & Dave*. Our meetup, which is central Ohio's longest running (and FREE!) weekly comedy event, brings the games for you to play in a safe, supportive, and compassionate environment. Afterward, many members will hang out in *Gresso's* itself and get to know each other. Not only is this a lot of fun, but you get to work on thinking faster on your feet, your public speaking, plus it's an excellent way to meet new people and build relationships that will last a lifetime, and you do that while laughing your butt off! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "*Yes, And*" that you'll have a blast!

We're going to GameArena! We'll be in-person at the GameArena Gateway for our monthly COGG Prototype and Play event. Come to play and showcase your games! We're back in the upper levels of the catwalk area. It'll be packed with lots of camaraderie playing your game(s) and other's games on the 2nd floor. Light snacks and water provided but you can buy food and drinks at the bar (alcoholic drink ID required). [www.game-arena.co](http://www.game-arena.co/) **Attendees:** Don't have a game to show? Not a problem! All are welcomed and invited from all ages and backgrounds. The more we can have to play test our games is all the better! **Developers:** Do you have a game that you would like to get critical feedback on? Would you like an excuse to work on a game with other talented artists, programmers, musicians, designers, and writers? Digital, table-top, non-experienced developers, and the like are welcomed! We'll provide signage for your game to help others learn more about your work. Wifi, outlets, tables, and seats (though standing tables also) are available. Come to the Prototype and Play workshop to collaborate and meet local game developers for an evening of epic and raw game play fun! Play works-in-progress, show off your own game, work with others to add polish to a game, or even lend your talents to other fellow developers. For this event, light snacks from the bar and water will be provided! Though you can purchase you own if you like at the bar: [https://www.game-arena.co/menu](https://www.game-arena.co/menu) Can use South Garage at the Gateway with a $5 voucher on your way out. 75 E 11th Ave, Columbus, OH 43201 [https://maps.app.goo.gl/UwgveUYG37Jy7RtS9](https://maps.app.goo.gl/UwgveUYG37Jy7RtS9) If you have any questions or comments, as always, feel free to reach out to us at [info@thecogg.com!](http://info@thecogg.com!/)

Most people still use AI like a search box: type one question, get one answer, repeat. But the next step is AI agents: systems that can take a goal, break it into steps, use tools, remember context, and produce useful work for a human to review. In this beginner-friendly session, we’ll demystify what AI agents actually are — without hype or jargon. We’ll walk through practical examples of how agents can help with research, planning, writing, coding, operations, and personal productivity. We’ll cover: * What makes an AI “agent” instead of just a chatbot * How agents break tasks into steps * Where agents are genuinely useful today * Where they fail, hallucinate, or need human review * How to design simple AI workflows for your own work * A live demo of an AI agent-style workflow from start to finish No coding experience required. This is for anyone who wants to understand where AI tools are going and how to use them more effectively right now. 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.