iPhone Apps

While we are approaching the middle of the year and KotlinConf is just over - we are thrilled that Trade Republic hosts us again! So mark the date! **Line-Up:** 👉 **Lists, Sequences, and Flows: Scaling Data Processing in Kotlin without Melting Your Memory.** *by Daniela Valero* In this talk, Daniela shares her journey of meeting a major backend deadline while managing a data pipeline's memory footprint. You’ll learn how to transition from eager List operations to lazy Kotlin Sequences and jOOQ Streams (using database fetchSize chunking) to keep memory usage flat. Finally, we’ll explore using Kotlin Coroutines and Flow to introduce safe concurrency so your data processes quickly without straining your database. 👉 **The show must go on** Kotlin-based Kafka dead-lettering solution without external (system) dependencies *by Blagoja "Baki" Stamatovski* **👉 Job Market Insights from a Kotlin developer** *by* Ivan Gafurov **Speaker Bios:** 🗣 **TDB**

Bienvenue :) Rejoignez-nous si vous parlez français couramment et aimez rencontrer des gens francophones pour bavarder. A bientôt!

**PLEASE REGISTER YOUR ATTENDANCE ON [LUMA](https://luma.com/72kv5zxm)​** Join IBM x KI Park for an afternoon exploring **how AI-driven automation enables scalable, resilient enterprise operations across the stack.** ​Hear real use cases from leading organisations, exchange peer insights and connect with practitioners and solution builders. **Why join:** * ​Gain a better understanding of how AI-driven automation is reshaping business operations, security and enterprise resilience * ​See how leading organizations move from AI adoption toward autonomous workflows across the enterprise stack * ​Learn how to scale intelligent automation in complex, growing tech ecosystems * ​Discuss how operating models and collaboration evolve around automation * ​Share challenges, compare approaches and gain practical lessons from peers ​**Agenda** * ​14:00 – 15:00 **Registration & Coffee** * ​15:00 – 15:45 **Opening keynotes** * ​Dr. Florian Schutz, Managing Director, KI Park * ​**The Enterprise Complexity Ceiling: Why the Tech Stack Isn’t Getting Smaller, A discussion of AI-infused Automation to the architecture of organizations** by Sebastian Grodzietzki, Principal DACH Automation Developer Ecosystems Leader & DACH Quantum Ambassador Leader, IBM * ​15:45 – 17:30 **Case perspectives & peer insights** * ​"**Building Autonomous Networks: From AI Potential to Value**" by [Karim Kotobi,](https://www.linkedin.com/in/karimkotobi/) Vodafone, Global Digital Product and Transformation Leader * ​"**Why MCP is Only the Plumbing: Building the Contextual Foundation for AI Agents**" by [Bastian Maiworm](https://www.linkedin.com/in/bastianmaiworm/?locale=de), Amber Tech, Co-founder * ​"**Rethinking SaaS Engineering: How Small Teams Run and Evolve Enterprise-scale Systems in the AI era**" [Matthias Heicke](https://www.linkedin.com/in/matthiasheicke/), CTO / Co-Founder, Sweap.io * ​17:30 – 18:10 Fishbowl Discussion – Audience participation/Interactive * ​18:10 – 19:30 Networking & Drinks ​**Who should attend** * ​Tech decision-makers across the enterprise stack * ​Platform, product and engineering leaders Limited seats. Free event · An RSVP on Meetup does not guarantee participation. To attend, registratation via [LUMA](https://luma.com/72kv5zxm) is required. Only confirmed participants will be admitted and will receive a confirmation email. We look forward to welcoming you to the event! \*\*\*\*\* *​By registering for this event, you agree that your registration data will be shared with KI Park and IBM for the purpose of event organisation, communication related to the event and relevant follow-up. Each organisation will process your data in accordance with their respective privacy policies. KI Park ([https://kipark.de/datenschutzhinweise/](https://kipark.de/datenschutzhinweise/?utm_source=luma)), IBM ([https://www.ibm.com/de-de/privacy](https://www.ibm.com/de-de/privacy?utm_source=luma)).*

**“Rotten Apple” is Maya Upchurch’s ranty, angry, morally-corrupt debut stand-up hour. Inspired by the likes of Bill Hicks, Bill Burr and Joan Rivers, she's a high-energy force of Gen-Z nature who lacks the ability to speak of anything other than exactly what's on her mind. Based out of Berlin, she's got a truckload of tales from the European capital of hedonism and her Polish/American background gives her a unique and interesting perspective on what it’s like to have two strong passports and a generally good life.** **While Maya most certainly will make fun of everyone and everything on her path, her favorite person to roast is undoubtedly herself. Bringing light to her time-wasting habits, irrational anxieties, and dependence on technology, she believes that "punching-up" is best done when it’s an upper-cut to yourself.** **Maya started doing standup in 2020, shortly after her first set there was lockdown because China was scared of her power. Since then she's done shows all around Europe, was a featured in The New York Times, performed with Don't Tell Comedy, opened for the likes of Todd Barry, Ashley Gavin, April Macie and did all sorts of other really cool and exciting stuff.** **When? 28th May 2026 8:30PM** **Where? SaliGari Bar Berlin** **Tickets? https://fienta.com/standup-comedy-in-english-with-maya-upchurch-rotten-apple** **(discounts available)** **IG: @mayacomedian** **Tiktok @mayaupchurchcomedy**

**The TypeScript Berlin meetup is back!** After a long break, we're reviving the meetups for 2026 and we'd love to see you there. Whether you've joined us before or you're coming for the first time, welcome! Come round for talks, snacks, good conversations, and a chance to connect with other TypeScript devs in Berlin. *** **🎙️ Interested in speaking?** We have an ongoing call for speakers for this event as well as future ones. [Fill it out here](https://tally.so/r/jaGa1J). *** **📅 Schedule** * 18:30 - Doors open, drinks and snacks 🍕 * 19:00 – Welcome 🤝 * 19:05 - Talk 1: "**Type-Driven Architecture: Stop Validating, Start Designing**" by [Mahesh Haldar](http://in.linkedin.com/in/haldarmahesh) 🎙 * 19:35 - Talk 2: "**Soundness holes in TypeScript’s type system**" by [Alexey Orlenko](https://www.linkedin.com/in/oleksiiorlenko/) 🎙 * 19:50 - Break 🥤 * 20:05 - Talk 3: "**Prisma Next: AI-Native, Graph Migrations, Extensions & Middleware**" by [Will Madden](https://www.linkedin.com/in/willmadden/) 🎙 * 20:35 - Talk 4: "**Prisma Next Performance**" by [Serhii Tatarintsev](https://www.linkedin.com/in/sevinf/) 🎙 * 20:50 - Wrap-up * 21:00 - Doors close 👋 *** This meetup is organised by [Prisma](https://www.prisma.io/). By attending the event, you agree to abide by our [Code of Conduct](https://www.prisma.io/event-code-of-conduct). For questions, reach out to events@prisma.io

**About the Event** We are super excited about a special Liv Longevity Community Event at the [AIVA Institute](https://aiva-institut.de/en/), one of Berlin’s largest longevity clinics, combining state-of-the-art diagnostics, preventive medicine, and regenerative therapies. The event will take place just one day before [LifeSummit 2026](https://lifesummit.berlin/). You will learn about all the diagnostics and treatments available at AIVA Institute, from body composition analysis, VO2 max, and grip strength testing to HBOT, red light therapy, and IV infusions. If you follow Bryan Johnson, many of the longevity and performance practices he is known for are part of what you can experience at AIVA. Some of you will even have the chance to try them yourselves. We are also excited to announce that [Sunday Natural](https://www.sunday.de/) and [MoleQlar](https://moleqlar.com/?trc_gcmp_id=20746904770&trc_gag_id=154667596745&trc_gad_id=679524635005&utm_source=google&utm_medium=cpc&utm_term=moleqlar&klar_source=google&klar_cpid=20746904770&klar_adid=679524635005&gad_source=1&gad_campaignid=20746904770&gbraid=0AAAAABmmase5fbD0JpLsV9_nrmqX97awW&gclid=Cj0KCQjw8PDPBhCeARIsAOJwmWU4ScmTOUdMV7SeIgknDhTRonoI4YwBxh4nNyueZitjsNcfhMqwZdQaAuXcEALw_wcB) will also be joining the event! Expect delicious vegan and vegetarian finger food, soft drinks, goodie bags, and special partner vouchers. Capacity is limited to 40 guests, so reserve your spot early—places are expected to fill up quickly. **Schedule** **6:30 PM** **– Arrival & Welcome** Come in, grab a drink, and connect over vegan and vegetarian finger food. **7:00 PM – Short Intro by [Andrea Caletti](https://www.instagram.com/dottore.caletti)** A short welcome and introduction to the evening by Andrea, Leading Physician at AIVA Institute (5-10 minutes). **7:10 PM – Cardiovascular Prevention Talk with [Sebastian Wunderlich, MD](https://www.instagram.com/doc.wunderlich?utm_source=luma)** A 20-minute talk with Q&A on cardiovascular prevention and lipidology, presented by Sebastian Wunderlich, MD, specialist in internal medicine, cardiology, sports & preventive medicine. **7:30 PM – Guided Tour of AIVA Institute** The AIVA team will guide you through the institute and introduce the diagnostic and recovery technologies behind their work, including spiroergometry, strength and HRV testing, hyperbaric oxygen (HBOT), intermittent hypoxia-hyperoxia training (IHHT), and near-infrared light therapy. Some of you will be able to measure and understand your grip strength with the help of [Dr. Olena Husak, PhD](https://www.linkedin.com/in/dr-olena-husak-phd-b2379166/) (\~10 people) and try treatments such as IV drips (\~5-10 people). **8:30 PM – Networking & Wrap-up** Stick around for an open exchange with the AIVA team, the Liv community, and like-minded people who care about living longer, healthier lives. Goodie bags with vouchers and items from our partner brands will be waiting for you! **About Our Event Series** The **Liv Longevity Community** is part of **[Liv Longevity Labs](https://www.liv.health/en?utm_source=luma)**’ mission to make healthy aging science-backed, practical, and personal. Our events blend insight, experimentation, and community—so you can live better, for longer. *** **About Our Sponsors** **[AIVA Institut für Vitalität & Ästhetik](https://aiva-institut.de/)** AIVA is a Berlin-based institute for vitality and aesthetics, dedicated to Medizin 3.0—science-driven preventive medicine. Their team combines cardiovascular preventive medicine, sports medicine with VO2max performance diagnostics, nutritional and hormone diagnostics, and modern recovery technologies such as cryotherapy, hyperbaric oxygen therapy, and intermittent hypoxia-hyperoxia training. AIVA's mission is to help people maintain and extend their health through effective, evidence-based prevention. **[Liv Longevity Labs](https://www.liv.health/en?utm_source=luma)** Liv Longevity Labs is pioneering a science-driven approach to longevity, empowering individuals to track, understand, and optimize their health through cutting-edge biomarkers. By integrating the world’s premier biological age test with behavioral coaching, Liv helps users make meaningful lifestyle changes backed by data. With a focus on cardiovascular health, body composition, and sleep, Liv Longevity Labs is redefining preventive health—making longevity measurable, actionable, and accessible.

Welcome to our cosy Godot Engine Community Meetup! This is not a structured meeting, but rather a friendly get-together. We will hang out, chat and maybe show some of our current projects! 🦜 Regardless if you are an artist, designer, programmer, beginner, hobbyist, professional or anything in between: join us for sharing knowledge, creating art together, coding together, joining game jams together and having fun! 🌼 This meetup will happen at [Saftladen Game Collective](https://saftladen.berlin), Normannenstraße 1-2, 10367 Berlin-Lichtenberg. 🌳 You can also join us on [our Discord Server](https://discord.gg/Sm3CgrqqQa). ☎️ Follow us on [Mastodon](https://mastodon.gamedev.place/@GodotUserGroupBerlin) for updates. 📢 Also check out [our website](https://godot.berlin). 🌐 Please be [excellent to each other](https://godotengine.org/code-of-conduct/)! 🕊️

**Rust Berlin Talks** is back for another evening of talks, shared ideas, and networking. Join us to learn, share, ask, and connect. If you work with Rust professionally, use it in side projects, contribute to open source, or are simply curious to learn more, you are very welcome. **Agenda** * Doors open: 18:30 * Start: 19:00 * Talks * Open mic / lightning talks * Networking **Speakers** Egor Lebedev - Welcome and a short note from the RustRover team Wolf Vollprecht - Pixi - A cross-platform package manager written in Rust Florian Gilcher - LLM Policies **Speaker Bios** Wolf Vollprecht is the founder and CEO of prefix.dev, where he builds open-source software supply chain infrastructure for the conda ecosystems. Core projects include Pixi (a cross-platform package manager written in Rust), rattler (crates to work with Conda packages), and rattler-build. With \~7 years in the conda ecosystem, including creating Mamba during his time at QuantStack, Wolf has a lot of experience in making package management fast, reproducible, and secure. Florian Gilcher used to be part of the Rust team in several positions and served as a member of the Rust Foundation board. He is also a co-founder of the Rust Berlin meetup. Today, he’s training Rust at Ferrous Systems, a company he co-founded. **Open mic & future talks** We’ll reserve a few short slots for anyone who wants to share something with the group. This can be a quick idea, a project, or an experience. Slides are optional. If you’re interested in giving a longer talk at a future meetup, this is also a good opportunity to connect with the organizers. **Venue & access** Please arrive on time. We will have someone at the entrance to let people in between 18:30 and 19:15. After that, access becomes more difficult as the doors are locked and require manual opening. **Registration** The venue has limited capacity and events typically fill up with a waiting list. If you register and can no longer attend, even at short notice, please un-RSVP so someone else can take your spot. Looking forward to seeing you all!

Meet up and join other people at the biggest meetup event in Berlin this Saturday! Whether you're a long-time resident or just traveling through, come and meet new people to have fun, make new friends and enjoy your Saturday evening in a **safe and welcoming** environment at one of Berlins fantastic locations. You can **pick up pizza at the venue** and/or stay with and party on the dance floors all night long! **IMPORTANT: AFTER 21:00 Birgit turns into club, so there is a charge of €15 to enter the venue or you may be refused entry by the people on the door, BUT if you arrive before then you can stay the whole night for FREE!!!** **ONLY CARDS** **FIND US BY LOOKING OUT FOR THE SIGNS ON THE TABLES!!** We always have several organisers there (male and female), so come say hello to us! We care to make sure that everyone enjoys themselves and we have **no tolerance for bad behaviour or creepiness.** Looking forward to seeing you there! **Follow us on Insta:** https://www.instagram.com/siphappens.berlin/ **Join us on Telegram:** t.me/siphappens_berlin **👉 Other important notes:** \- 🍸 The locations we visit are bars and clubs\, they are businesses and we are able to keep these events free ONLY if people buy drinks\. Please respect the locations and the event by making purchases \- 🦹‍♂️ Remember to keep an eye on your belongings and prioritize your own well\-being\. We are not responsible for any lost items or personal issues\. \- 📷 By attending our events\, you consent to being photographed or filmed\. Photos and videos taken during the events may be shared on our social media\. If you do not wish to appear in the photos or if you appear in a photo that we post that you would like removed\, please send us a private message as soon as possible on Instagram \(@siphappens\.berlin\)

✅**Please fill the** [SIGN UP FORM HERE](https://forms.gle/LaifWkFTDRn4gweQ7) **to join this event** Looking to meet new people thru a fun and engaging experience ? Whether you're single, taken, or it’s... complicated, this event is for you! Join us for a unique **Traffic Light Speed Friending experience** to meet friendly faces with an interactive introduction, speed friending rounds with fun conversation cards, and enjoy Italian pizza together, everything is designed to help you spark connections 💖 🚦**The** **Traffic light concept** Upon arrival, you’ll receive colour-coded name tags that reflects your intensions so there’s no mixed signals 😉 💚Green – Single & open to date 🧡Orange – It’s complicated or just confused, but you’re open to making new friends ❤️Red – Taken, just here to make friends 👀**Here’s What to Expect:** 🙋🏻‍♀️**Starting with introduction & Guess the fun facts:** we’ll display the intro and fun fact you submitted on screen, and everyone will guess who it belongs to. It’s a fun way to learn about each other while skipping repetitive introductions and small talk. 🍕**Italian Pizza & a Welcome drink** – Mingle with each other over yummy italian pizza & drinks. Optional Spark Tote bag with fun questions printed on the merch where you can choose from the form when you sign up. 🚦**Traffic Light Speed Friending Rounds** – you will rotate every 5 minutes with conversation cards on the table to make the conversation easier so you can have fun discussions and skip the small talk. 🏆**Fun ice breaker games I designed with Prizes:** er and end the night with laughter 🎤**Optional Karaoke** at the end to sing to night away 👀[Sneak peak of our last speed friending event on Instagram ](https://www.instagram.com/reel/DPY7jWGCFvd/?igsh=Mm0yb2ppZTlhZnp4) ️🎟️**Ticket Price:** €35 Includes all activities, Italian break & Pizza, and a welcome drink (10% off Student discount or unemployment discount available) ✅ [SIGN UP FORM HERE](https://forms.gle/LaifWkFTDRn4gweQ7) 🔗 Traffic light speed friending WhatsApp Group: https://chat.whatsapp.com/FZJK9k42VJi2hl5PMMOvTj?mode=gi_t to get to know each other before the event 💖Check our vibes on Insta: https://www.instagram.com/sparkevents_510 Don’t miss out on an afternoon of joy, laughter, and meaningful new connections in a fun, vibrant atmosphere! Can’t wait to see you all soon! 🫶🏼

Looking to unwind, meet fellow founders, and connect with others in the startup world? Join us for a casual evening of good food, great company, and a friendly **poker tournament** with a €5 entry and €10 re-buy, 5/10 cent blinds that increase by 10 cents every hour. **What to Expect** **7:00 – 7:30 PM:** Check in & Mingle **From 7:30 PM:** Poker game begins (friendly competition, beginners welcome!) 🎟️ **€10 including Entry & Snacks + €10 Poker Chips to Play with, rebuy up €50.** **Everyone is welcome! Whether you’re a pro, a beginner, or just here to learn, we’ll divide tables based on experience. Please indicate your level with your name tag:** **🟢 Green – No clue, here to learn** **🟠 Orange – Beginner / Intermediate** **🔴 Red – Advanced / Professional** **✅ Spaces are limited, so claim your spot through this [SIGN UP FORM](https://forms.gle/QCjXZXioTk5V4wTh9)** **and [Join the WhatsApp Group Founders & Startups Poker Night ](https://chat.whatsapp.com/HZqJkAGiXQ51GECyLiQohZ)[♠️](https://chat.whatsapp.com/C02KYYSMS8cGgKocAoOhkk) where I will be sharing more details later**

Join us for a casual Product Round in Neukölln — a relaxed evening for product people who enjoy meaningful conversations and a user-first mindset. 🗓 When? Every last Thursday of the month (Join the Discord channel to get 🔔 reminders and 📍 location updates: [https://discord.gg/6cKgFKXY4f](https://discord.gg/6cKgFKXY4f) Currently moving there to keep the community and events free and accessible for everyone.) 👋 Who it’s for • Designers (UX / UI) • PMs & POs • Developers & Engineers • Researchers • Aspiring product people 💬 What to expect • Casual conversations about real product work • Sharing experiences, challenges, and learnings • Getting to know other product people in Berlin • No talks, no presentations, no pressure • Just drinks, chats, and good company 🚫 Please note This is a no-sales, no-pitch, no-dating space. The goal is simple: connect, exchange, and enjoy the conversation. If you care about building products with users in mind and want to meet like-minded people — this is for you. See you there! 😊 Phil

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

**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

In this local meeting, you will discover knowledge that you can use to get over the past. The key to improving your personal motivation, self-confidence, and happiness is to get over your painful memories. When you become free of your past, you will be free from stress, anger, anxiety and depression. Studies show that negative emotions can affect your health. By being free of negative emotions, believe it or not, you will most likely even look younger, feel more energetic, and become healthier! 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 brought to you by the Dianetics and Scientology life improvement center.

PLEASE NOTE!!! This event will be In-Person for our very 1st Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 1st event and are doing a soft launch with limited attendance. 1st come 1st serve. If you want to be there and we fill up, please email me at [info@thecogg.com](mailto:info@thecogg.com) and I'll be in touch. All street parking is free on Sundays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at info@thecogg.com with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)

**Talk Description** Coming soon **Agenda:** 7:00pm - Opening announcements 7:10pm - Main Topic 7:50pm - Q&A

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm