Reactive Programming

Hello everyone, It's time for the March edition of CopenhagenJS — and this time we're doing things a little differently! We're teaming up with **Prosa** for a special evening with an interactive **roundtable discussion on the Job Market in the AI Era**. Come ready to share your thoughts, experiences, and questions! ## Schedule: 17:15 Doors open 17:45 Roundtable: Job Market in the AI Era 18:30 Break with food and drinks 19:15 Q&A: Job Market in the AI Era 20:00 Group Photo 20:05 Socialising - Meet the community 21:00 See you next time! ## About CopenhagenJS CopenhagenJS is a community group in Copenhagen for all JavaScript developers. We get together and share things we work on and like. We talk about various technologies that we either use daily or aspire to use. ## Want to Present? CopenhagenJS is for and by the community, so you are more than welcome to talk about things that you find interesting and we will assist you with your speaking if you are new or have any difficulties. You can contact us by sending a private message or comment here on meetup.com or any social network where you can find us. ## Stay Connected Follow us on [LinkedIn](https://www.linkedin.com/company/55050411/) We're looking forward to seeing you at the event! Best regards, Zoey, Jonathan, Gojko and Svetlana

Hi fellow Swifties! Long time no Meetups - After a hiatus we are back 🥳 This time we're visiting **Veo's** office in Copenhagen. We are currently looking for speakers/talks so that part of the program is still to be determined and announced. As per usual there will be plenty of time to mingle and socialize. **The schedule :** 17.30: meet, eat & chill 18.20: sit down and welcome 18.30: talks start (there will be a short break between talks) * **From PoC to Product** by Zamzam Farzamipooya * **Bad Networks, Good Uploads: Video Realiability with HLS** by Tørk Egeberg * **App Intents: Lessons from extending Obsidian for iOS** by Dharam Kapila 20.30: more mingle time 21.00: wrapping up **Guaranteed seats for underrepresented groups** As a step towards increased diversity in our community, all underrepresented groups are guaranteed seats on our meetups. By signing up for the waiting list at least a day in advance, we will move you to the guest list automatically. If you are on the waiting list and have not been moved up, please contact Marina Vatmakhter. We're looking forward to see everyone 🙌

This is a regular practice meeting for our lovely Performance Team! We practise relation-based long-form improv, learn relevant new skills and perform monthly, mostly on MAF stages. If you are an experienced improviser, have never improvised with us and would like to join or potentially perform, please send us a message and tell us about yourself! More about us: https://www.facebook.com/improvisatorium

Azure Skåne invites you to yet another community evening — hosted on‑site at **Knowit, Malmö**. ***Please note that this is not our regular venue, so double‑check the location before you arrive.*** Agenda: * 17:15 - 17:45 Meet and Greet * 17:45 - 18:30 Session * 18:30 - 20:00 Food and Mingle "**Azure Durable Functions on the move**" Many companies rely on enterprise route-planning platforms that promise optimisation, flexibility, and scalability. In reality, they often become expensive black boxes that are hard to adapt, slow to evolve, and difficult to operate. In this talk, we will share the story of how our team replaced an enterprise route planning solution with our own system built on Azure Durable Functions. Instead of fighting the limitations of a monolithic product, we designed a cloud-native orchestration engine that is simpler, faster to iterate on, and easier to understand. By leveraging Durable Functions, we implemented complex routing workflows, parallel processing, and long-running optimizations without introducing heavy infrastructure. This talk is not about theoretical architecture. It is s a practical story of replacing enterprise software with a cloud-native approach, and what worked (and what didn’t) along the way. If you’re working with Azure, serverless architectures, or complex workflow orchestration, this session will give you real-world insights and ideas you can apply to your own systems. Speakers: •⁠ ⁠**Afolabi Abass**. Engineering Manager @Mover •⁠ ⁠**Yegor Lopatin**. Director of Engineering @Mover

Hi everyone! Thursday is the offical book meeting day, so let's gather and share our reading. As usual, we will meet at the fourth floor of the Central Library as it has good facilities for book clubs and it is also free to use. No extra cafe money to spend. Idea is to meet and connect over books. Each participant present 1-2 books they would like to recommend or just talk about, and then we'll see where conversation leads us. Again, there is no limitation to genre or type of book you are reading. The point is that we are free to read whatever we want and then share those reading experiences, so remember to be respectful to each other. I hope to see as many of you as possible. :)

https://www.facebook.com/korsgadesprogcafe/ Come and join our cosy language cafe. We recommend that you already speak some Danish (maybe around module 3 on sprogskole) so you can join and understand the conversation. We are mostly two Danes joining, so we can make two groups: beginners and more advanced. We are having conversations while drinking tea. If you have an exam coming up, we can speak about your exam subjects some of the time. Small donations (10-20 kroner) are appreciated, to support the rent of the place. You find us in the basement of Korsgade 19. It is a door to the right of the main entrance.

**Registration**: https://luma.com/heqfvt6h **About Event** ​Launching a product is one thing. Finding real traction is another. ​For the first Founders Circle in Copenhagen, we’re bringing together experienced founders to share how they approached go-to-market — what worked, what failed, what they misjudged, and what ultimately helped them gain traction. ​This is an honest, practical conversation focused on early positioning, first customers, channel experiments, pivots, and the messy middle between idea and growth. ​ **Panelists** ​**Tony Beltramelli** Founder & CEO at Uizard ​**Dennis Green-Lieber** Founder & CEO at Propane ​Moderated by **Simon Hansen**, CPO at Airtame

**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:** Every Friday **Where:** Yum & Yoga, [Alliancevej 22, 2450 København](https://www.google.com/maps/place//data=!4m2!3m1!1s0x465255e7ef260131:0x8624f5d7b4d83852?sa=X&ved=1t:8290&ictx=111) **What to bring:** Your positive energy (and maybe a link to your LinkedIn/Portfolio!). *Let’s grow together!*

We meet on Saturdays late mornings to have a casual, meaningful conversation on topics of interest to everyone chosen on the spot by majority voting. So please feel free to propose your own topic! Everyone is welcome to talk, but if you prefer to just join and listen, that is perfect too. As the contacted cafés usually only give reservations to eating guests, it is very welcome if you order something to eat during our stay. This is however not mandatory. This event is in English. The exact place can still change.

**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We like to be comfortable when we run and finish with coffee and conversations. Choose your pace or follow a pacer—pets, friends, family, are welcome. 🗓️ Launched in San Francisco, July 16, 2022 🌍 Now in 35+ cities 📅 Running + Networking events + Community **Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats) **Stay updated**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) Podcast [http://podcast.foundersrc.com/](http://podcast.foundersrc.com/) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC) Website [http://foundersrc.com/](http://foundersrc.com/)

Thanks to everyone who came out on Saturday for Jane Austen’s *P*e*rsuasion.* We were quite a large crowd, but managed still to have a meaningful exchange. Thanks to Xinxin for suggesting the book. The next book to read, by popular demand, is American novelist [Zora Neale Hurston](https://en.wikipedia.org/wiki/Zora_Neale_Hurston)’s novel *[Their Eyes Were Watching God](https://www.goodreads.com/book/show/37415.Their_Eyes_Were_Watching_God?ac=1&from_search=true&qid=UYWpFV2l9H&rank=1)* from 1937. Set in Florida in the early 20th century, the novel is a coming-of-age story that follows a young girl, Janie Crawford, on her journey of searching for herself, her own voice and independence. A review of the book reads: *Out of print for almost thirty years - due largely to initial audiences’ rejection of its strong black female protagonist - Hurston’s classic has since its 1978 reissue become perhaps the most widely read and highly acclaimed novel in the canon of African-American literature.* You can read the book [here](https://books.apple.com/dk/book/their-eyes-were-watching-god/id1570302263?l=da). It is, of course, also available as an [audiobook](https://youtube.com/playlist?list=PL79XEuIN26cIyEzvKcVc676mx1vMaQEdo&si=4JfJa9mW0nzSr1l1). You can also watch it, so to speak, as there’s a TV movie version from 2005 featuring Halle Berry [available as well](https://www.dailymotion.com/video/x9ck3tc). For other resources on how to get a hold of classic books, please see the *About us* section on the front page of the group [here](https://www.meetup.com/copenhagen-classic-book-book-club/?eventOrigin=home_groups_you_organize). We meet up on Saturday, March 21st, at 4 p.m. The location will, once again, be the Fireplace Lounge at 25hours Hotel in Pilestræde 65. I think we really found the perfect future place for the book club at the Fireplace Lounge. If you want to read more about 25hours Hotels and their hospitality towards culture and community, you can do so [here](https://25hours-hotels.com/about-us/). There is a 10% discount on drinks on the bar, just mention the discount to the staff. Also, please remember to bring your suggestion for the next classic book to read. And, please, as always, be mindful and respectful of each other, so that everyone feels respected and appreciated. In the meantime, happy reading/listening/watching or however you do it.

Come join us for a run/jog/walk in Sydhavn Note this trail will start earlier so our visitors can make it back to their ferry. We are not a typical running club, so please read about the concept in “about us”. How it works: we don’t know in advance where the trail will go, but we know it will be fun! A member of the club, the 'hare', sets a trail, usually marked with flour. The rest of us, the 'pack', follows the hare's 'scent', i.e., the marks. There will be a 8-10km trail for runners with shortcuts down to approximately 5 km for walkers and those who need a slower pace. We have no set pace - run/walk as slow or as fast as you'd like. After the run we enjoy some refreshments and socialize. Come a few minutes before the start so that you can say hi and leave your bag in a designated bag car before we set off at 18:30 Don’t worry if there are few registrations on Meetup. We have existed since 1980, and a lot of our members (anywhere from 10 to 30 people) just show up. Four-legged friends are welcome! We never cancel. See you there! On On,

Booked pitch at Holmen. Pitch is booked until 14.30 💰 **Cost:** 10 kr Mobilepay: 9539SH Revolut: [revolut.me/frederwnn](https://revolut.me/frederwnn) Or bring Cash * Event begins at 12:45 * You must sign out no later than 9:00 * Spots are non-transferable (you cannot reserve a spot and send someone else in your place) * Members who follow the rules and attend regularly will be given priority **Be at the pitch at 12.45 sharp!** Minimum 14 players by midnight and we play! Otherwise the game is cancelled. We aim for 8v8. The game is naturally for everyone no matter gender, level or anything. We emphasise on having fun! That also means no risky tackles or foul language. Bring a white and a black t-shirt and a ball if you have one. **Last minute sign-off's** (Later than 9AM on the same day) or no-shows will be banned from the next game and be put in the no-show list. 3 Strikes and you're out for a full year - no exceptions. See the list here: [No-shows @ Football.xlsx](https://kpdk-my.sharepoint.com/:x:/g/personal/hems_kp_dk/ETJW3_gniv1BmbKjidmn31wB9SFCobvhySRDW5fXSdc9Lg?e=lCafbH)

Please Note: only registered guests will be allowed to attend our meetings. 🎤 Looking to overcome your fear of public speaking and gain confidence in your leadership abilities?\*\* Look no further than Frederiksberg Toastmasters, a chartered club of Toastmasters International - the leading non-profit organization in public speaking and leadership development. 🌟 Practice your public speaking, communication, and leadership skills in a supportive and inclusive environment, guided by experienced mentors and utilizing the Basecamp curriculum. 🌱 Develop your ability to persuade, gain stakeholder buy-in, and negotiate with ease through regular speeches, evaluations, and leadership opportunities. 🤝 As a member of Frederiksberg Toastmasters, you'll join a community of like-minded individuals working towards the same goal: to become world-class communicators and leaders. 🗓️ We invite you to join us at our weekly meetings, held every Saturday from 11:00 to 13:00. We start on time. 🔍 A typical Toastmasters meeting is run like this: [Watch Video](https://www.youtube.com/watch?v=383gehepo8M) 📌 Meeting location: Please check our LinkedIn page: [Frederiksberg Toastmasters LinkedIn](https://www.linkedin.com/company/frederiksberg-toastmasters) 😊 As a guest, you'll have the opportunity to observe and participate in our meetings (voluntarily). Note that you will not be forced to speak if you don't want to. Typically, there will be around 20-30 people. 🗣️ You will witness the power of superior communication manifesting in the form of inspiring oratory and elevated storytelling that underpins world-class leadership. ✍️ Step out of your comfort zone and become the best version of yourself 🚀 Frederiksberg Toastmasters \| Home of Leadership and Public Speaking Toastmasters \| Where Leaders are Made 📮 frederiksberg@toastmasters.dk 🌐 Facebook: [Frederiksberg Toastmasters Facebook](https://www.facebook.com/FrederiksbergTM) 🌐 LinkedIn: [Frederiksberg Toastmasters LinkedIn](https://www.linkedin.com/company/frederiksberg-toastmasters)

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

**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

Discover Kiro, AWS’s innovative development environment that adapts to your workflow. Whether you prefer specification-driven development or a more intuitive, vibe-based approach, Kiro empowers you to build applications your way. In this session, speakers will explore Kiro’s core functionality and its evolution through re:Invent 2025, along with demonstrations of prompts used to create APIs, hooks, and steering documents. In the latter part of the session, watch as we build a complete example from scratch, showcasing Kiro’s agentic AI workflow in action for spec-driven development and vibe coding. What You'll Learn - Core Kiro concepts and development philosophy Feature evolution: pre and post re:Invent 2025 Practical examples: API creation, hooks, and steering docs Live coding demonstration with real-time problem solving Who Should Attend - Developers, solutions architects, and technical leaders interested in modern AWS development tools and AI-assisted coding workflows. **Speakers Bio:** Matthew Jorat: Matthew Jorat is a Customer Solutions Manager at AWS with nearly three decades of expertise in AI, cloud transformation, migration, modernization, IT, technology, and business. His career spans infrastructure engineer, solutions architect, security auditor, customer success director, support and services director, and operations officer. He was an early adopter of AWS services as a customer, and his current role at AWS uniquely blends his technical and business skills as he partners with executive teams to translate strategic priorities into measurable business outcomes through cloud adoption, AI implementation, and operational excellence. Matt leads end-to-end AI initiatives for enterprise customers, identifying high-impact use cases and maintaining relentless focus on measurable ROI. He holds eight AWS certifications and serves as Adjunct Professor at Franklin University teaching cloud computing and AWS architecture. His expertise encompasses GenAI, agentic AI systems, migration, modernization, and optimization strategies that drive transformation at scale. [https://www.linkedin.com/in/mattjorat/](https://www.linkedin.com/in/mattjorat/) Girish Bhatia: Girish Bhatia is a seasoned technology delivery leader with deep expertise in cross-domain program management. He holds multiple AWS certifications, including AWS Certified Solutions Architect – Associate, AWS Certified Developer – Associate, and AWS Generative AI Practitioner, and is also an AWS Community Builder. Girish brings over two decades of experience in the information technology industry. Throughout his career, Girish has led major technology-driven business transformation from modernizing on-premises applications to driving large-scale cloud migrations. His work includes API-based integration platforms, data-center and mainframe modernization, and enterprise cloud adoption initiatives. Based in Columbus, Ohio, Girish works at a tech-forward fintech company. He is passionate about AWS serverless architectures, Generative AI and emerging cloud technologies. An avid learner and builder, he continues to explore and apply the latest innovations in AWS to help organizations accelerate their digital transformation. https://www.linkedin.com/in/girishbhatia/[https://www.linkedin.com/in/girishbhatia/](https://www.linkedin.com/in/girishbhatia/) **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

It’s time to take control of your mental health. How do you get rid of stress, anxiety and uncertainty? These emotions are buried deep in your reactive mind. Find out what the reactive mind is, and in the process find yourself. Here is the secret of being positive and free: Thinking positively is not enough. You also have to get rid of the negative thinking. Your mind is like a garden. You can plant many beautiful flowers in it, but if you don't get rid of the weeds when you plant your flowers, the weeds will soon take over the whole garden. A positive thought is like a flower in your mental garden, and a negative thought is like a weed. You cannot expect to have a positive mindset if you continue to have negative thoughts dwelling and growing there. So, how do you get rid of the negative thoughts? That's what this Meetup is all about. Attend this local meeting and find out! The Meetup event will be led by a consultant who had helped many people live happier in life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Dianetics & Scientology life improvement center.

**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

**Web Design Decoded: Tools, Practices, and Proven Processes:** **Semantic HTML** At WebDev Columbus, we are exploring some of the most important topics of professional high-end web design and page building. Primarily focused on site building in the WordPress environment, our group explores tools, tips, and techniques for building the best WordPress sites possible. Additionally, we focus on disciplines and technologies that take website design from visually appealing to optimized spaces for delivering you and/or your client's message effectively and with a nod towards extended reach. Each session combines practical demonstrations with real-world insights, giving you actionable knowledge you can apply immediately. Whether you're a seasoned developer looking to enhance your design skills or a newcomer wanting to understand design best practices, this series offers valuable insights for every skill level. **What to expect:** * Hands-on demonstrations of popular design tools * Best practices for design-to-development workflows * Tips for creating responsive, accessible designs * Real-world problem-solving scenarios * Interactive Q&A sessions * Networking opportunities with fellow developers **Each meetup features:** 60 minutes of focused presentation 30 minutes of live demonstrations 30 minutes for questions and discussion **See you there!** Our casual, collaborative environment encourages learning from both presenters and fellow attendees. Bring your questions, share your experiences, and connect with Central Ohio's web development community! **Stay tuned for specific session topics and dates.**

**New Dojo Location!** **Buffalo Wild Wings in Grandview** 968 W 5th Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)