F# Programming

Hello Gophers, Welcome back for another year of Go talks and networking! Would your company like to host our meetup? Let us know! If you'd like to give a talk - submit your proposals here: http://goo.gl/forms/54YvJT223F All talk formats work: short talks (5-10 min) as well as regular length (25 min). If you have more ideas - talk to us at the Gophers slack: https://invite.slack.gobridge.org/ in the #berlin channel, and follow us on twitter: https://twitter.com/gdgberlingo **Speakers**: *Simon Schulte* is a Tech Lead with nearly a decade of experience building scalable backend systems across fast-paced product companies. With a background in business informatics and a passion for Golang, cloud infrastructure, and DevOps, he has spent his career solving complex engineering challenges. He is particularly excited about leveraging AI and LLM workflows to eliminate the tedious, repetitive work that slows developers down — think tech debt, boilerplate, and documentation — so engineers can spend their energy on what actually moves the needle. For Simon, AI isn't about replacing developers; it's about giving them back their time. *Daniel Peralta Madriz* is a backend engineer from Costa Rica with around 6 years of experience working with Golang, although, sadly, he's been spending most of his time lately working with Node.js :(. He is interested in distributed systems, scalability, and developer experience, and is currently experimenting with how to leverage LLMs to safely and autonomously execute repetitive tasks. *Michael Morgen* is a Platform/infra engineer by day, runtime and network optimizations by night. Join in person at: **Talon.One** Talon.One is the incentives engine behind 300 of the world’s most-loved brands, unifying loyalty and promotions on a single flexible platform. Their customers run millions of real-time incentive decisions across markets, channels, and use [cases.As](http://cases.as/) incentives become more strategic than ever, they are continuing to raise the bar for what businesses can build and how fast they can build it Wiener Str. 10, 10999 Berlin https://maps.app.goo.gl/8eMjgWes1E4TBA3c7 or virtually at: https://www.youtube.com/live/qh__TQ1bMF0?is=hw21pk0ZE3HGyaaT *** Agenda 10:49 PM: Networking Networking over drinks and food 7:30 PM: Welcome Welcome words from the organizers 7:35 PM: Talk 1: Go-ing Against the Chaos: Deterministic LLM Workflows / Daniel Peralta Madriz (Backend developer) & Simon Schulte (Techlead of Webhooks and Notifications) @ Talon.One LLMs are powerful, but “it works most of the time” isn’t good enough for production. In this talk, we’ll walk through how to design deterministic workflows around non-deterministic models using Go. From structured iteration loops to validation steps and guardrails, you’ll learn how to move beyond prompting and start engineering reliable LLM-powered systems 8:10 PM: Announcements and break Announcements, HR lost & found, open mic 8:30 PM: Talk 2: About Go Memory Allocator / Michael Morgen, Platform/infra engineer @ Mirantis A short talk about how Go gives memory to your program. We will look at the main allocator parts, why small allocations are usually fast, when Go asks the OS for more memory, and a couple of simple examples where this knowledge helps performance. 9:05 PM: Networking Networking over drinks and food *** Hosted By Natalie Pistunovich, Organizer Ole Bulbuk, Organizer Tim Scheuermann, Organizer Anderson Queiroz, Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-berlin-golang-presents-hybrid-may-golang-meetup-1/.

**Liebe Gophers,** am 13.Mai geht es bei uns um eines der wichtigsten Patterns in verteilten Systemen: das **Transactional Saga Pattern**. Wer mit Microservices arbeitet, kennt das Problem – eine Bestellung aufgeben klingt einfach, aber dahinter stecken Payment Service, Inventory Service, Shipping Service... und jeder hat seine eigene Datenbank. Was passiert, wenn mittendrin etwas schiefläuft? Klassische ACID-Transaktionen funktionieren hier nicht. Sagas schon. Unser Speaker Mark Borukhov zeigt, wie das Saga Pattern funktioniert – mit echtem Go-Code, einem E-Commerce-Beispiel und Live-Demo. **Was euch erwartet:** * Warum verteilte Transaktionen ein echtes Problem sind * Saga Pattern: Konzept, Choreography vs. Orchestration * Implementierung in Go – Schritt für Schritt * Pitfalls, Lessons Learned & Q&A Das Event richtet sich an alle – von Go-Einsteigern bis zu erfahrenen Entwicklern. Auch wer Go nicht kennt, aber Microservices baut oder Patterns liebt, ist herzlich willkommen. **Der Vortrag wird auf Deutsch gehalten.** Wir treffen uns um 18 Uhr bei [lynqtech](https://www.lynq.tech/). Mit dem Vortrag starten wir um 18:30 Uhr. Danach wollen wir über Technologien und Erfahrungen plaudern, voneinander lernen, Kontakte knüpfen und einfach eine tolle Zeit miteinander verbringen. Wir freuen uns auf euch! 🚀 *Mark & Anna*

**𝗗𝗘𝗔𝗥 𝗪𝗢𝗥𝗟𝗗 – the international week-breaker** for context (as frequently asked): \- we are always many more people than sign up here on meetup as most traffic and updates happen on IG \- average age range is from 20\-30 \(everyone is welcome\) **Happy Holidays!** Since most of us have the Thursday off after, we decided to go all in. At later hours a DJ will get us started on the extra dancefloor and let’s party 📸 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. 📍 BODEGA DANZA, Flæsketorvet 13A, 1711 Copenhagen 🕖 When: starting at 19:00 (hosts & stickers until 22:30, 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 🌇

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!

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)

**This event is for international professionals in Sweden or those planning to move to Sweden and in search of jobs.** **View available jobs on our website and LinkedIn** [https://www.englishjobs.se/all-jobs](https://www.englishjobs.se/all-jobs) **You can sign up for the event on our website here:** [https://www.englishjobs.se/events](https://www.englishjobs.se/events) # **MEET RECRUITERS** Each week, we host a networking evening focused on an industry such as media, finance, tech, hospitality, gaming etc. This event is invite-only, based on industry and experience to ensure the best quality event for all attendees. Meet and network with recruiters hiring within your industry. Meet other professionals and expand your contact network. **What do you get?** Grow your career and contact network. Meet with people working at companies and get an insight into what it is like working there. Learn about Swedish work culture. **What do you need to bring?** Don't forget your business cards!! Each event is catered for with food and drinks sponsored by a company. As there is limited capacity due to venue space fire regulations and catering. * **This is an invite-only event.** * **\*You must apply to attend\*** # **HOW TO GET AN INVITE?** **Step 1: Register our website here. Refreshments will be served and you can select your dietary preferences on the website:** https://www.englishjobs.se/events **Step 2: Check your inbox for an invite confirmation** If there is a match with the industry theme and recruiters are attending, you will receive an email invitation from EnglishJobs.se **Step 3: Accept or Decline the invite** If you get a place, you will get a confirmation email from englishjobs.se with the address and door code. If you can attend, you must **ACCEPT** It. If you cannot attend, you must **DECLINE** it, so that we can give your spot to the next person on the waiting list. If you do not get an invite email, it means the event is full or your chosen industry did not match the week's event theme. You will get an automatic email if a spot becomes available. **IMPORTANT** === * If you do not have a confirmed place, please **DO NOT SHOW UP** at the venue * Please **IGNORE all automated reminders** and automated emails from Meetup.com * We use a different system to manage our events. **You must RSVP on our website, NOT on Meetup.** **Questions?** Please email alina@englishjobs.se Thanks and see you there, Alina

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

Join us for an hour of writing! We’ve discovered that it’s strikingly helpful to write with other writers. See if it’s true for you at our Copenhagen Shut Up & Write! sessions. Be it a book, blog, script, essay, dissertation, résumé, melody, poem, or just plain work stuff, you are invited to write it with us. No one will see what you've written or give you unsolicited advice. Instead of just thinking about writing, come and get some real writing done. SCHEDULE: - 15 minutes of hellos and getting settled; maybe some quick intros. - Then, the timer starts! : writing for 1 hour. - After the hour is up... chat / take off / keep writing, if you're on a roll. OPTIONAL SOCIALIZING happens once the hour of writing is complete. Writing can be very solitary... connecting (and sometimes even commiserating) with other writers is a cool thing. It's best to be on time, but BEING LATE IS ALSO OKAY: just show up and get settled, then check in with us after the session. (We’ll be the ones with the small Shut Up & Write! sign.) If you were on time, please be willing to make room for the friendly latecomer. What Should I Bring? Whatever you need to be able to write! Bring earbuds/earplugs if you want to block the cafe’s overhead music or the occasional conversation by other patrons.

The concert starts at 19:30 but let’s meet an hour before in Tivoli for a drink. Learn more and get tickets [here](https://www.tivoli.dk/program/sommerklassisk/daphne-awards)

Hey Randoms, Here we go again! The classic 3 day hike through the National Park in Sweden - Söderåsen. We meet in CPH Central station and ride the train together. The hiking starts when we get off the train in Åstorp and finish Saturday in Höör. Both towns have decent train connections, and tickets are available in the Skånetrafiken mobile app - highly recommended. **Train on Thursday** Station: Copenhagen Central 8:30 departure - platform: see info screens Öresundståg 1034 toward Göteborg C 9:54 Helsingborg C - change of train 10:18 Helsingborg C Pågatåg 1812 towards Hässleholm 10:43 arrival in Åstorp, our destination **The Hike** There are pretty good water posts along the way, but it's still recommended to filter/sanitize the water. There's a supermarket and bakery option on Friday. The plan: Thursday: 20 KM Friday: 31 KM Saturday: 30 KM

We're continuing with Saturday evening Football / soccer ⚽ The field is not booked and the event is for free 🆓 Usually the field is available at 6 PM, but if it's booked by a local club, we must move. Last minute sign-offs will be banned 🟥 for future games if it happens more than once and no reason is given. The game is for all levels, genders 👦👨 and people wanting to have fun. We keep it friendly and respectful. Everyone who can should bring a ball and a pump. Also don't forget to bring a black and a white T-shirt as we do not have bibs.

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 You will need to scan your ID at the door to get a visitor badge. **Abstract** TBD **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)

We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games! The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

**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 John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. 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