Open Source

Most apps don’t fail because of code — they fail because they don’t **make money**. In this live, hands-on session, we’ll build a real iOS app from scratch using AI-assisted (vibe) coding — and **integrate monetization** from the very beginning. No theory. Just a **real app, built step by step**. You’ll see: * how to go from idea to **working app** in under an hour * how to structure a simple product that can actually **generate revenue** * how **subscription models** work in practice (weekly, monthly, yearly) * what makes a **paywall convert** — and what kills it * how tools like **[Adapty](https://adapty.io/)** help you set your monetization right and make experiments! * **paywall experiments** without rebuilding your app This session is designed not only for developers, but also for **vibe coders, indie makers, and founders** who use AI tools to build products faster — even without a deep technical background. **What you’ll walk away with** * a clear understanding of how monetization fits into product design * a real example of a working app with a paywall * practical insights you can apply immediately **Format** * Live coding session (\~60 min) * Short discussion & Q&A **Who should attend** * mobile developers * vibe coders & AI builders * indie makers * startup founders **About the host** Sèrge Koval — iOS/macOS engineer with 17+ years of experience, cybersecurity specialist, and organizer of Luxembourg Vibe Coding workshops. **Stay in touch** After the session, I’ll share a few extra tips, resources, and updates in Adapty's Discord server: [https://discord.gg/jSrPYTXBTN](https://discord.gg/jSrPYTXBTN) There is also a dedicated "🇱🇺 luxembourg" channel! **Notes** The session will be conducted in English. 📍 OFFLINE and ONLINE from Luxembourg City 🗓 May 27\, 2026 \| 18:00–19:30 ⚡️Spots are limited to 500 — register now.

Chill out after work with some laughs and good vibes at this free comedy open mic night you don't want to miss! ## AFTERWORK COMEDY Get ready to unwind and laugh out loud at **Bar Grand’Place Luxembourg**! Join us every Wednesday at **19h30 (CET)** for a chill afterwork openmic comedy session. It’s the perfect way to kick back, enjoy some great jokes, and meet cool people. Don’t miss out on the fun and good vibes in the heart of Luxembourg! Free Entry Tickets https://www.eventbrite.com/e/afterwork-comedy-openmic-tickets-1985050587744 **For comedians;** you can show up and sign up and perform 5 minutes.

AFTERWORK COMEDY Get ready to unwind and laugh out loud at Bar Grand’Place Luxembourg! Join us every Wednesday at 19h30 (CET) for a chill afterwork comedy session. It’s the perfect way to kick back, enjoy some great jokes, and meet cool people. Don’t miss out on the fun and good vibes in the heart of Luxembourg! Get your free tickets https://www.eventbrite.com/e/afterwork-comedy-openmic-tickets-1985050587744 For comedians; you can show up and sign up and perform 5 minutes.

Outdoor calisthenics workouts are a fantastic way to build strength, improve fitness, and enjoy the great outdoors 😁🦾 Calisthenics is a form of strength training that uses the resistance of your body and gravity to help strengthen your muscles and improve your coordination, endurance, and mobility. It’s a workout that relies on body weight with little or no equipment. In fact, almost all common bodyweight exercises are considered calisthenics exercises. Some examples include: - airsquats - pushups - pullups - frogstand -handstand -musclup -backlever aso 😁 Whether you’re a beginner or an advanced athlete, calisthenics provides a holistic approach to fitness. 🏋️‍♂️💪

Êtes-vous un adepte des logiciels de marketing et souhaitez-vous gérer vos campagnes e-mail et vos indicateurs clés de performance (KPI) en toute simplicité ? Marre de jongler entre plusieurs logiciels pour envoyer des newsletters et piloter vos campagnes marketing ? Cette journée de **formation 100 % gratuite**, le **vendredi 29 mai 2026** au **Luxembourg** est faite pour vous ! Découvrez comment Odoo peut vous aider à centraliser et optimiser votre stratégie marketing. 🚀 Inscrivez vous gratuitement sur notre site : [https://www.odoo.com/r/SY1](https://www.odoo.com/r/SY1) **—---------------------------------------------------------------------------** **Les informations pratiques :** **Où?** Odoo Luxembourg \| Rue de l’industrie\, 13 \| 8399 Koerich\, Luxembourg **Quand ?** Le 29 mai 2026 de 9h à 17h **Inscription?** [https://www.odoo.com/r/SY1](https://www.odoo.com/r/SY1) **Prix ?** Gratuit ! Au plaisir de vous y voir nombreux et de vous rencontrer !

Rejoignez-nous pour notre prochaine session de l’Odoo Academy dédiée au CRM, le **Lundi 28 Mai 2026 au Luxembourg !** Les Odoo Academy sont des séries de formations gratuites d'une journée où les participants peuvent apprendre directement de nos experts expérimentés. Vous passez des heures à gérer et suivre vos opportunités? Vous copiez/collez vos devis afin de les envoyer à vos clients? Nous avons développé une solution vous permettant d'optimiser le temps passé à la vente et à la gestion de vos prospects... Oubliez les heures interminables à gérer votre pipeline ou à encoder vos devis manuellement, ligne par ligne ... Odoo se charge de tout ! Inscrivez vous gratuitement sur notre site : [https://www.odoo.com/r/WGnH](https://www.odoo.com/r/WGnH) **—---------------------------------------------------------------------------** **Les informations pratiques :** **Où?** Odoo Luxembourg \, Rue de l’Industrie\, 13 \| 8399 Koerich\, Luxembourg **Quand ?** Le 28 Mai 2026 de 9h à 17h **Inscription?** [https://www.odoo.com/r/WGnH](https://www.odoo.com/r/WGnH) **Prix ?** Gratuit ! Au plaisir de vous y voir nombreux et de vous rencontrer !

**Weekly stand-up comedy open mic night, featuring short sets from multiple comedians. FREE ENTRY!** Every Thursday at 9pm at Updown Bar ! Free tickets https://www.eventbrite.com/e/comedy-open-mic-luxembourg-tickets-1216566646589 If you want to go on stage, just show up, sign up and go up ! Follow us on instagram for the most recent events ! https://www.instagram.com/luxembourgcomedy/

## AI & Lunch - In-person gathering in Luxembourg Hey there! Join us for another **in-person lunch** in the heart of Luxembourg where AI enthusiasts come together to chat, share ideas, and enjoy great food. Whether you're a pro or just curious about artificial intelligence, this is the perfect chance to connect and exchange with like-minded people. See you there! **AI & Lunch** is the seated, more intimate format of the **AI & Coffee** community — designed for deeper conversations and real connection around the table. This will be a lunch where we all sit together and so everyone gets the chance to meet the full table, connect, and discover new stories. You’re welcome to bring friends if you’d like. The goal is simple: enjoy lunch together, exchange ideas, value, updates about AI, and meet the people behind this growing community. After our AI & Coffee meetups, previous lunches, dinners, many meaningful connections have already formed — and this format is where they really deepen. 🍽️ **We’ll gather for conversations about:** • AI news, trends, tools, and real use cases • Personal projects, ideas, and feedback • Supporting each other’s personal or entrepreneurial journeys • Strengthening Luxembourg’s AI community 👥 **Who’s welcome?** Developers, entrepreneurs, investors, students, researchers, creatives — and anyone curious about AI who enjoys thoughtful conversation and meeting new people. 💡 **What to expect** • A friendly, open lunch in a nice location • Circulating seats throughout the courses • Great conversations, new perspectives, and genuine connections • No pressure, no presentations — just good people and meaningful exchange **🎉 The only cost is your lunch.** Bring your curiosity, your appetite, and your good energy — and join us for a lunch of conversation and connection.

*** we are at the outdoor bar Mikrosomos and usually at the long bench tables. they to find an organiser and say hi!! Want to practise French 🇫🇷 German 🇩🇪 English 🇬🇧 Luxembourgish 🇱🇺 — or ANY language you can find a partner for? Then join our crew of friendly expats & locals for a night of chats, laughs & global energy 🎉 In Luxembourg, speaking multiple languages is basically a superpower 🦸‍♂️🦸‍♀️ — but this meetup is all about connection, not perfection. Beginners, pros & “I understand but can’t speak” people — all welcome 😄 Don’t feel like practising a language? 😎 No worries — you’re STILL totally welcome! come hang out, meet people & enjoy the international vibes anyway 🥂✨ Come for the languages — stay for the laughter, friendships & drinks 🍹 ✨ What You’ll Find ✔ Super chill atmosphere 😌 ✔ Expats from everywhere 🌍 ✔ Zero pressure — just vibes ✨ ✔ “How do you say…?” moments 🤔😂 ✔ Old friends & new — ❤️ 🍹 AFTER-EXCHANGE APÉRO 🤩 Languages warm-up… Drinks cool-down… Balance restored 😌🍺 Most weeks we wander to another bar afterwards for beer, bites & bonus socialising. Just follow the organisers — they know the 🔥 hotspots 😉 🪧 HOW IT WORKS ➡️ Sit with the group for the language you want to practise ➡️ Switch groups anytime — totally chill ➡️ Rare language? Post in the group & find your match 💫 ➡️ Luxembourgish shows up too 🇱🇺 ⚠️ By attending, you agree organisers can’t be held liable for regulation violations (or accidental grammar crimes 😜)

## Stand up Comedy Live - Dark Comedy Night Get ready for a night full of laughs and some seriously dark humor! This in-person event brings you edgy jokes and sharp wit that'll keep you hooked all evening. Whether you're a fan of clever twists or just love the unexpected, this comedy night is the place to be. Come hang out, enjoy some live stand-up, and share some laughs with fellow comedy lovers!

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!

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!

Main Library, Meeting Room 2B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

**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** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd 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 speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9