Mainframe Computing
Meet other local people interested in Mainframe Computing: share experiences, inspire and encourage each other! Join a Mainframe Computing group.
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Frequently Asked Questions
Yes! Check out mainframe computing events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the mainframe computing events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find mainframe computing events near your location here. Connect with your local community and discover events within your area.
Mainframe Computing Events Today
Join in-person Mainframe Computing events happening right now
Reliable agent-driven development
Two Topics on todays agenda:
**Reliable agent-driven development**
(Thomas Martinsen, Tech Evangelist @ Twoday, MS MVP & RD)
Agent-driven development is not about letting tools write code for you. It is about shifting responsibility. We move from writing every line ourselves to defining intent, constraints, architecture, and security boundaries—while agents produce the first drafts.
The real challenge is not generation, but reliability and value. Tools will evolve. What matters is understanding how they work, where they fail, and how to design guardrails around them. Just as anyone can write code but not everyone practices solid software engineering, the difference in this new paradigm lies in discipline, not access to AI.
This session focuses on how to make agent-driven development robust: how to define clear requirements, enforce non-functional constraints, embed security and observability, and validate AI-generated artifacts at scale. The goal is to raise the abstraction level without losing control—and to ensure that agent-generated output translates into sustained business value.
**How Does a Coding Agent Work?**
(Tore Nestenius, .NET Architect & Technical Trainer, MS MVP)
Coding agents are increasingly used to automate software tasks, yet how they actually work is often treated as a black box. This talk breaks a coding agent down into its core mechanics: how it is structured, how it communicates with a language model, and how a text-only model can read and modify real source code.
We will cover:
\* what a coding agent is, mechanically
\* how agents communicate with language models
\* how tools and MCP calls are executed
\* how a text-only model works with source code
\* how to build a basic coding agent in C#
Mindful therapeutic painting with acrylics
A therapeutic approach to painting that helps you de-stress, interpret, express and resolve your emotions and thoughts.
Activity fee for all Mindfulness Home activities is 108 kr.
Membership costs 50kr a year
[www.mindfulnesshome.se](https://mindfulnesshome.se)
Contact: 070-355 41 91(Emma)
Silvers Dinners Wednesdays
Tickets here: [www.TheSilvers.dk](www.thesilvers.dk)
Here in Copenhagen we have started a movement of weekly dinners (on a Wednesday) hosted by the senior generation in their own homes.
Seniors with 60+ years of life experience who are community leaders, intellectuals, artists, storytellers, and want to share their experience over dinners for a small group each time.
Every Wednesday there is dinner hosted by a different Silver (senior host) who will open their front door, welcome a group of 5-8 people into their home, and share their stories, knowledge, and connections across the table over a themed evening.
Each host chooses their own theme and it is the aim to pass on their hard-earned knowledge.
DEAR WORLD - the international week-breaker + pool
**𝗗𝗘𝗔𝗥 𝗪𝗢𝗥𝗟𝗗 – the international week-breaker**
Your favorite after-work/after-uni bar night to connect, relax, and meet amazing people at ease.
**\- average age range is from 20\-30 \(everyone is welcome\)**
**\- we are always many more people than sign up here on meetup as most traffic and updates happen on IG**
**Happy New Year!**
Let's start another amazing year of Dear World the way we know it - together!
At Pool, we enjoy the super cozy vibes indoor and outdoor while always having some pool tables to mingle for some competition.
📸 IG @dearworldcph (for impressions from past events!)
As the days are colder and shorter, we’re bringing the energy to our nights – with over 100+ at our bar nights and 200+ at our parties, 𝗗𝗘𝗔𝗥 𝗪𝗢𝗥𝗟𝗗 keeps growing!
For almost 2 years now, we’ve been uniting Copenhagen’s international crowd (and locals) – countless nationalities, shining in different languages 🌍
Think easy-going conversation starters like flags, rotating chat charms & playful questions – all designed to spark great chats and eliminate any awkwardness.
📍 POOL, Gothersgade 8C, 1123 København
🕖 When: starting at 19:00 (hosts & stickers until 22:00, the night continues however long you like)
Let’s raise a glass, meet familiar and new faces, and break the week – together 🥂
𝗗𝗘𝗔𝗥 𝗪𝗢𝗥𝗟𝗗
The space for internationals and open-minded locals to connect in Copenhagen. Whether you’re looking to socialize, network, make friends, or simply vibe – just show up. Come solo or bring your crew – we’ve got you.
Got questions? DM us on Instagram @dearworldcph or reach out to the host here.
Let’s make Wednesdays the new favorite day of the week 🌇
Practical Philosophy Meetup - Copenhagen 🇩🇰
**🏛️ WHAT'S PRACTICAL PHILOSOPHY ABOUT?**
Practical Philosophy is a weekly meet-up that brings critical thinkers together for an opportunity to dive deep on a topic, practice communicating, and building a community. All with no ‘official’ philosophy knowledge required! 😎
Practical Philosophy is based on the idea that philosophy should be accessible to all, and not something reserved only for academics. Each week we choose a topic, and the goal is to use the conversation to develop our critical thinking and communication as we explore that topic.
The goal is to help develop our Critical Thinking, Communication, and Community 🙌
**📓 HOW DOES IT WORK?**
Each week, we pick one topic and discuss it. The topic for the week is shared, generally in the [Whatsapp group](https://chat.whatsapp.com/CRqdyO6p6lZDIN2qVRIlWX), along with jump-off points to get the conversation going.
When groups get bigger than 7-8 people, it’s important that we break into smaller groups. This way we are able to maintain a conversational flow as opposed to having our meetups feel like a discourse or lecture.
**General Meeting Agenda**
Each Practical Philosophy meet-up follows this general timeline:
* 19:00-19:15 - People arrive and chat, get to know each other before the ‘official' start.
* 19:15-19:25 - Meeting introduction, explanation of Practical Philosophy and the topic for the week, read the guidelines and the overview so attendees know what to expect in terms of timelines.
* 19:25-20:45 - Break into small groups - introduce yourselves and general thoughts on the topic, open discussion afterwards. At this point the group can review the ‘jump-off’ questions as needed, but they are just there to help guide the conversation. It’s not obligatory to answer them.
* 20:45-21:00 - Bring everyone back together to discuss conclusions of the topic - each group gives a short 1-minute summary. Organizer concludes the meeting and everyone takes a group photo.
* 21:00 - The official meeting is over but it’s a great opportunity to get to know people in a non-structured environment, so we often stick around, chat, and get to know each other.
**🧧PRICING?**
Practical Philosophy Club is FREE to attend! We just ask that if we are meeting in a café, buy a beverage! Some chapters rent a space for us to meet, and they may ask for donations to help contribute to the cost of rent. Donations will always be 100% voluntary though!
**💛 WHAT PEOPLE SAY ABOUT PRACTICAL PHILOSOPHY**
🗣 “I feel like Philosophy Club helps someone build their own belief system through a series of perspectives while not promoting what’s right and wrong” - Ekam
🗣 “I got hooked from day 1 (the topic was authority) and felt it was the right place for me. I feel it is a place where people can go to learn and discuss new perspectives and increase critical thinking and community by interacting with people who might challenge your point of views but at the same time encourage you to have openness and mind flexibility.” - Daniel
**🤓 FAQ**
* What will we talk about? What's the topic?
The topic for the week is shared every Sunday in the Whatsapp group. We try to add the topic to the comment section on this event page as well but if you don’t see it, the topic and the jump-off points will be in our [Whatsapp](https://chat.whatsapp.com/CRqdyO6p6lZDIN2qVRIlWX).
* Do I need to study or read anything to attend?
No preparation is necessary. This isn’t a study of other thinkers. We want to know what YOU think about the topic, not what an old philosopher thought. If you have a perspective from a religion or a school of thought to share, throw it on the table and we’ll discuss it, but it's not required.
* Is there a specific philosophy that Practical Philosophy is focused on?
The goal of our meet-ups is to not have dogmatic discussions, and flex our critical thinking muscles. Because of this, we want to hear from every realm of thought, and don't study a particular school.
* Is it mostly men that attend?
Surprisingly, no! Although philosophy is seen as a Candelabra affair in a dark room with a bunch of guys, our Practical Philosophy meetups are generally 50/50 between genders, and we don’t meet in any dark rooms.
* Can I come alone?
Of course you can, we encourage it :)
* Can I be late?
Please don't be! We do have a 15 minute grace period where we allow people to funnel in while we hang out, but after that if you arrive too late, it disrupts the flow of the conversation.
* Where do you meet?
The location is posted in Meetup and our [Whatsapp](https://chat.whatsapp.com/CRqdyO6p6lZDIN2qVRIlWX) group for this location. It is HIGHLY RECOMMENDED that you join the Whatsapp group! If you want to know what other cities have a Practical Philosophy Club, you can see our chapters on our [website](https://www.practicalphilosophy.club/practical-philosophy-locations/).
🤝**POLICY**
To respect our members privacy, we ask that no one privately message a member without first getting explicit consent. (This looks like speaking in person and being asked to message privately.) Contacting or texting other participants without prior consent is not permitted and may result in removal from the group. Practical Philosophy reserves the right to enforce this policy at its discretion to maintain a safe and respectful environment.
**PRACTICAL PHILOSOPHY - Making Philosophy Available To All. ✨**
Practical Philosophy hosts weekly, in-person meetups in 25+ countries, including Canada, Spain, Japan, Mexico and many more! 🗺️
\*\*\*
Join our [Whatsapp group](https://chat.whatsapp.com/CRqdyO6p6lZDIN2qVRIlWX) 👈
Follow us on [Instagram](https://www.instagram.com/practicalphilosophyclub/?hl=en) 👈
Our [website](https://www.practicalphilosophy.club/) 👈
If you can speak, you can lead! Practice with Speak to Lead Toastmasters
Speak to Lead Toastmasters helps people to improve their public speaking and leadership skills in a supportive and fun environment. No matter what your age, background, and level of confidence are, it is a place for you. If you are scared as hell of public speaking, then you should definitely come!
If you are new to our club and would like to attend one of our club meetings, go to our [website](https://sites.google.com/view/speaktoleadtoastmasters) or [Facebook](https://www.facebook.com/SpeaktoLeadToastmasters) / [LinkedIn](https://www.linkedin.com/company/speak-to-lead-toastmasters-copenhagen/) / [Instagram](https://www.instagram.com/speaktolead.toastmasters/) pages for our current updates, send us a message on Messenger and see how our previous meetings have been. Email: speaktolead.membership@toastmasters.dk if you have any questions. Guests are welcome, and it is for free as a guest.
If you find it interesting, you can later sign up as a member by paying a small monthly fee (non-profit). As a member, you will get access to online educational programs and manuals, will be able to give speeches, take on different roles, participate in contests and international conferences as well as befriend lots of cool people.
We meet on Wednesdays from 18:00 at: **Kulturstationen Vanløse, Jernbane Allé 38, 2720 Vanløse.** The room is on the first floor.
How to get there:
1\. Once you exit the Vanløse station turn
2\. towards the Burger King & Netto\, then
3\. On the left side is a white building with an elevator and staircase
4\. Go up to the first floor and use your CPR card to get in
5\. You will see the room with a Toastmasters sign
Please note that the meeting is in English. In addition, the number of attendees on Meetup is not a representation of the number of people at the event.
We are looking forward to seeing you!
Mainframe Computing Events This Week
Discover what is happening in the next few days
Hack The Box Meetup: #3
Join us on Saturday 25th of April. This is a hybrid event that will take place simultaneously online and in person, where all cybersecurity enthusiasts in CPH are welcome to join.
**The event**
📍 DTU, building 303A, room 046
📅 25th of April, from 13:00 to 17:00
**Q&A**
* Q: Who is this for?
Everybody is welcome, we have a bit for everybody.
* Q: How can I participate?
Register for the event, and if you want, show up at DTU in building 303A :)
* Q: What to bring?
A computer!
* Q: Can I participate using my own HTB account?
Yes you can
* Q: Who organizes this event?
We are the organizing team behind the DTU Hacker Lab. Our goal is to bring people together and explore all aspects of cyber. We want to make cybersecurity accessible and help the curious to season themselves.
**Contact**
* Find us here: [https://linktr.ee/dtuhackerlab](https://linktr.ee/dtuhackerlab)
* Email: [hackerlab@compute.dtu.dk](http://hackerlab@compute.dtu.dk/)
**Support**
Send us an email at [hackerlab@compute.dtu.dk](http://hackerlab@compute.dtu.dk/)
We are currently looking for partners and collaborators to improve our events and work with other communities.
Copenhagen Swift & Cocoa - Hangout #5
Come hang out with fellow Apple platform developers and enthusiasts for an informal evening of tech talk, coffee, and good company.
No agenda, no slides — just a relaxed get-together at a Copenhagen café where we geek out about Swift, iOS, visionOS, and whatever else is keeping us busy lately. Whether you're deep in SwiftUI architecture, experimenting with spatial computing, or just curious about what's happening in the Apple ecosystem, you're welcome here.
Bring your questions, your opinions, and ideally a laptop if you want to show something off.
See you there.
Make Your Own Ceramic Candle Holder 25.04
Join a cozy ceramics workshop where you create your own candle holders - perfect for bringing warmth and atmosphere into your home.
During the workshop, you will make a set of candle holders, either by using one of our templates or by freestyling and shaping them entirely according to your own ideas. You will be guided step by step through the process, so you can feel confident working with clay and creating a personal expression - whether simple and minimalist, playful and organic, or with fine details ✨
Your finished candle holders will be ready for pickup 3-4 weeks after the workshop.
The workshop is suitable for both beginners and experienced participants - and for anyone who wants to immerse themselves, work with their hands, and take home a unique, handmade set 🕯
**Les Amis** is a women-only community of friendly souls. We provide access to hundreds of experiences that explore your passions and connect you with other event participants. **Check our website to learn more, and apply to join our community and events**: [lesamis.cc/apply](https://www.lesamis.cc/apply)
Den agile madklub - KBH
Vi har bord på Köd Vesterbro kl. 20, hvor vi alle skal have "all-in" menuen inkl. drikkevarer ad libitum til i alt 950 kr. pr. person: https://restaurantkoed.dk/selskabsmenuer.
Der er desuden frivillig pre-drinks på Duck and Cover (Dannebrogsgade 6) fra kl. 17!
For at bekræfte din deltagelse bedes du overføre de 950 kr. til MobilePay 52157777 grundet der skal betales med ét kort på aftenen.
Bekræftede deltagere:
1. Luxshan
1. Maja
1. Thomas
1. Lykke
1. Marco
1. Klaus
1. Carsten
1. Peter
1. Ditte
1. Andreas
1. Kenneth
1. Rikke
1. Elena
1. Nila
1. ...
1. ...
Physical Meetup - A deep dive into the Clarify and Organise steps
Dear all,
Once again, it is time for a physical Meetup in the GTD Copenhagen Community. We will meet at Danske Regioner, Dampfærgevej 22, 2100 København Ø, where Bente Villumsen will host the meeting. We will meet on Thursday, 23th of May, at 17.00.
The topic for the meeting is **the five GTD steps with a deep dive into the Clarify and Organise steps**. So come and join us if you would like a chance to improve your own GTD system.
Our Copenhagen-based GTD Coach, Michael Eltong Gade, will take us through all five steps of GTD before we focus on the Clarify and Organise steps.
We hope that the topic will give you the tools to make 2026 a great GTD year.
After the presentation, we will discuss our own GTD Systems. You will get ideas to improve your system from Michael and the meeting participants.
If time allows, we will discuss tips and tricks for challenges you have with the GTD practice.
We look very much forward to seeing you.
Best regards,
Bente Villumsen, Jens Hynne Petersen, and Michael Eltong Gade
FreeStyle JavaScript working group
Is the Web your canvas?
Are JS, CSS and HTML your brush,
Node.js, VSCode and DevTools your easel,
or React, D3 and Three.js your siege engines?
Or would you just like them to be?
Whether you're working on a web site, web app or web startup,
if you care about logic, data structures and natural intelligence™
beyond their framework abstractions and artificial boilerplates,
let's get together to discuss routing, hydration, effects, design, standards, verification, optimization and more.
Drop by for a casual exchange of knowledge, feedback and curiosity while we work or chillax with a coffee.
Connect & Grow: Networking & Social for Career Changers
**Are you currently between jobs or looking for your next big challenge?**
Being "in-between" jobs can be a solitary journey, but it doesn’t have to be. This Friday, join us for a relaxed networking event designed specifically for those looking to expand their professional
circle and build new friendships while navigating the job market.
**Why join us?**
* **Expand Your Network:** Meet people from different industries who might have the lead on your next opportunity.
* **Peer Support:** Share experiences, tips, and resources with others who are in the same boat.
* **Build Friendships:** Beyond "business cards," this is a space to find community and positive vibes.
* **Copenhagen Scene:** Enjoy a coffee in a friendly environment and get out of the "home office" for a few hours.
Whether you are a designer, a developer, or a manager, everyone is welcome. Let’s turn "unemployment" into an opportunity for "new connections."
**When:** Once or twice per month
**Where:** Copenhagen Main Library - Krystalgade 15 (nearby Norreport St.)
**What to bring:** Your positive energy (and maybe a link to your LinkedIn/Portfolio!).
*Let’s grow together!*
Mainframe Computing Events Near You
Connect with your local Mainframe Computing community
Columbus HUG April
Want to be a speaker? submit your talk to our Call for Presenters!!!
https://sessionize.com/cbus-hug-2026/
COhPy Monthly Meeting
**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
The Non-competitive Tennis Partner Program
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)
What If Your AI Could Be a Team? - Chad Green
**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**
GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise.
We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration.
Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team.
**YouTube Link**
TBD
Afternoon Coffee Break!
(craft and chit chat included)🤣☕️🤗
**Let’s catch up and take an afternoon break.**
**Grab a coffee or snack and let’s chit chat! Gayle and I will bring adult coloring books and/or a simple craft if you’d like to unwind and relax.😊**
Agile Coaching Circle -- IN-PERSON
Join other experienced and aspiring agile coaches and professionals to:
* develop and practice your coaching skills in a peer-to-peer environment
* share current successes and challenges in your work environment and get support from each other
* learn from each other, build better relationships and experiment with new ideas
***NOTE:*** Pre-registration is required for this event. **Please arrive 10 minutes early** to check in at the security desk.




















