Embedded Systems

**GDG Berlin × Cloudflare** 📍 **Ojin AIxHaus — Powered by Journee** Chausseestraße 36, 10115 Berlin 🗓 **Date:** *Wednesday 18 Feb* ⏰ **Time:** 18:00 – 21:30 (GMT+1) 🚨 **Important** Registration will be handled via **Luma** 👉 **Registration link:** [https://luma.com/x0iqonf2](https://luma.com/x0iqonf2) 🌍 About this event Join us for a **Berlin AI Builders Meetup**, organized by **GDG Berlin** and **sponsored by Cloudflare**. This evening meetup brings together engineers, builders, founders, and AI practitioners for practical, real-world discussions at the intersection of **AI, infrastructure, and modern software systems**. Whether you’re building AI-powered products, scaling platforms, or exploring how AI fits into real production workflows, expect insightful talks, open conversations, and strong community energy. 📍 Venue Hosted at **Ojin AIxHaus — Powered by Journee** Berlin’s home for builders, creators, and AI practitioners. 🗓 Agenda **18:00 – Doors Open** Grab a drink, meet fellow builders, and get settled. **18:30 – Talk 1 (TBA)** *Topic to be announced* 🍕☕ **Break — 15 min** 19:10 – 19:25 **19:25 – Talk 2 (TBA)** *Topic to be announced* 🍕☕ **Break — 15 min** 20:05 – 20:20 **20:20 – Talk 3 (TBA)** *Topic to be announced* 🕺 **Networking from 21:00 until 21:30** 💃 Connect with speakers, organizers, and fellow AI & cloud enthusiasts. 🍕🍻 Food & Drinks Food and drinks will be provided thanks to **Cloudflare’s support**. 🙏 Thanks & Credits A big thank you to **Ojin AIxHaus** for hosting this event and to **Cloudflare** for sponsoring and supporting the Berlin developer community. Ojin AIxHaus is powered by **Journee — The Human AI Company**, a collaborative community space in Berlin Mitte where scientists, machine learning engineers, founders, creators, and AI enthusiasts come together to build the future of AI. Ojin AIxHaus is free to join and is currently curating its 2026 events calendar. Have an idea for a meetup, workshop, or hackathon? Bring your fire — they bring the space 🔥 👉 [https://ojin.ai/community](https://ojin.ai/community) **Google Cloud Credits** We’re planning to offer **Google Cloud credits** to attendees so you can explore and experiment on GCP after the event. Activation details and instructions will be shared on-site. And a huge thanks to everyone in the community who helps make these events possible 💙

🎤 **Stegreifreden-Wettbewerb am 18. Februar – Spontan. Mutig. Mitreißend.** Was passiert, wenn 13 Menschen dieselbe Frage bekommen – und nur 1–2 Minuten Zeit, um zu antworten? Es entsteht ein Feuerwerk aus Ideen, Perspektiven und überraschenden Wendungen. Bei unserem **Stegreifredenwettbewerb** treten 13 Teilnehmer gegeneinander an. Alle erhalten exakt dieselbe Frage. Keine Vorbereitung. Kein Skript. Nur ein Moment, ein Gedanke – und eine Bühne. Innerhalb von 1–2 Minuten verwandeln sie ihre spontane Eingebung in eine kleine Rede. Mal humorvoll, mal tiefgründig, mal völlig unerwartet. 👀 **Das Publikum erlebt:** * kreative Gedankensprünge * überraschende Pointen * inspirierende Mini-Reden ⚖️ **5 Richter** bewerten die Beiträge und entscheiden über die Platzierungen. Ob als Zuschauer oder Redner: Dieser Abend zeigt, wie viel Ausdruckskraft in einem einzigen spontanen Gedanken stecken kann. Sei dabei, wenn Worte Flügel bekommen. 🚀

**PyBerlin: February's event** **Sponsor**: **Sentry** **Location: W3.Hub (ground floor)** **Agenda:** 6:30 pm – Doors open: snacks, drinks, networking 6:55 pm - Welcome from PyBerlin 7:00 pm - Welcome from the sponsor - Sentry 7:10 pm – **Maximum time off, minimum leave: solving the holiday equation with Python and math // Sander Van Aken** Around the beginning of the year, German news sources publish tips on how to optimize your vacation by cleverly using Brückentage: taking a few strategic days of leave to connect weekends and public holidays into long breaks. But how can this be computed systematically? And how can it be tailored to your personal preferences? Operations Research (OR) and mathematical optimization are powerful but often underrepresented disciplines within the broader AI and analytics landscape. In this beginner-friendly talk, we treat holiday planning as a mathematical optimization problem. Using the question “How do I maximize my benefit from taking time off?”, we will walk through the full process from problem formulation to a working Python solution. Speaker's bio: Sander Van Aken is Operations Research Engineer and passionate about applying quantitative methods to solve mobility, logistics and supply chain planning challenges. Beyond his day-to-day job of developing decision support algorithms for network planning at Flix SE, he is active in the broader OR community and loves introducing people to the field. 7:40 pm - break 8:00 pm – **Exception Handling Within the Context of Python's Typing System // Jonathan Herrera** A conceptual approach to exception handling, with a special focus on Python's type hinting system. Python's typing system does not allow for annotating methods with the exceptions they raise. The talk discusses the conceptual consequences of this limitation and introduces different exception handling paradigms with their upsides and downsides. Speaker's bio: Jonathan has worked as a Senior Python Developer in different companies. Currently, he is an Engineering Manager at RoomPriceGenie, a scale-up providing revenue management solutions to hotels, where he oversees the integrations team, and works, amongst other things, on establishing best practices with regard to reliability and security. 8:30 pm – **One does not simply send a GET request // Paweł Wiszniewski** Short presentation on a few of the less-known features of the requests and urllib3 libraries. Regardless of whether you're scraping the web or extracting data from those REST API endpoints, you need a reliable and convenient way to download data from the internet. But packages get lost in the traffic, servers get overwhelmed with requests. And your job is to build a resilient data pipeline. Let's see what the most popular HTTP libraries have to offer. Speaker's bio: Paweł is a Senior Data Engineer and a founding member of the Data Platform team at Flink SE, where he builds tools and designs processes that empower data scientists, analysts, and business teams across the company. 9:10 pm - closing This event will be only in-person. Please check our Code of Conduct and official health regulation in Berlin before coming. If you feel some signs of sickness, please consider skipping this event and attending another time. We will have plenty of events in different formats in the future. Looking forward seeing you all!

**Come as you are. Leave feeling seen, supported, and inspired.** Are you an expat woman living in Berlin, longing for deeper connection and meaningful conversation? Whether you’ve just arrived or have been here for years, finding *your people* in a big, often overwhelming city like Berlin can feel like a real challenge. It certainly did for me—both when I was brand new and even after I’d been here for a while. 😉 Join this meetup and get a taste of **Soulful Sisters Community** —a warm, welcoming gathering created for women who are ready to connect, share, and finally feel truly at home in Berlin. Over coffee and soul-to-soul conversation in a cozy Berlin café, we’ll slow down together, meet like-hearted women, and explore what it means to build real community while living abroad. Expect light ice-breakers, guided connection prompts, and plenty of space to just be yourself. This gathering is for you if you’re: 🌿 Feeling lonely or disconnected in your expat journey 💛 Craving honest conversations and soulful sisterhood 🌍 Ready to be part of a community that uplifts and inspires You don’t need to be extroverted or “have it all together.” Just come as you are—with an open heart and a desire to connect. ✨ Let’s rise, grow, and thrive—together. (In case there is no more free spots, please feel free to reach out to me in a private message. 💗) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Meet Your Host — Nora 💛** Hi, I’m Nora—a transition coach, community builder, and the founder of Soulful Sisters Community. I moved to Berlin over 16 years ago and, like many expat women, I know how lonely and overwhelming life abroad can feel. It took me years to find my people, and now it’s my mission to make that journey easier and more heart-centered for others. I’m here to create spaces where women feel seen, supported, and truly connected—because we were never meant to do this alone. For more info, check out www.noranagy.com

Mit dem Titel "Philosophie 2.0" wird nicht zu viel versprochen. Nicht alles was mit 'Philosophie' bezeichnet wird, hat damit auch zu tun. Das gilt allgemein. Wörter werden zu oft nicht präzise gebraucht, aber wenn man alles mit beliebigen Wörtern bezeichnen würde, könnte man nichts mehr genau verstehen, könnte nichts mehr genau begreifen. Also blieben die Irrtümer bestehen. Das hätte mit Philosophie aber definitiv nichts mehr zu tun. Was also ist das Gegenteil belanglos-vieldeutigen Wörterverdehens mit hochassoziativen Sprüngen bei denen allerlei übersehen wird und ergo das Wesentliche nicht mehr als solches klar erkannt werden kann? Maximal exakte Begriffsklärung. Und das geht! Das geht über einen systematischen Aufbau aller Kategorien - gestützt über einen Algorithmus, welcher Kategorienfehler automatisch vermeidet und mithilft, das Ganze im Blick zu behalten. Dass dies für uns Personen gar nicht so einfach ist, sieht man daran, dass jede Person (auch Du) irgendwann irgendwelchen Irrtümern aufgesessen ist. Jede Person, die sich also für irgendetwas ernsthaft (nicht wegen blanglosem Amüsement, oder wegen ideologischer Rechthaberei) interessiert und ergo dafür offen ist seine Auffassungen weiterzuentwickeln, ist bei dieser Veranstaltung goldrichtig. Ablauf: Bei unserer Diskussion geht es dabei nicht um irgendein festes Thema, sondern jeder schreibt ein Wort in seinem Interessengebiet auf einen Zettel und wir ziehen diese paarweise für je eine Runde. Die beiden Wörter haben gemeinsame Kategorien, aber es gibt auch Unterschiede. Wer diese nicht alle kennt, kann nicht behaupten, dass er tatsächlich begriffen hat, wovon er meint, dass es ihn interessiere; dass er definitiv wüsste wovon er spricht. Dieses Problem hatte schon Sokrates erkannt. Nur haben wir jetzt einen Algorithmus, welcher zu absoluter Genauigkeit verhilft um diese Irrtümer loszuwerden. Daher 'Philosophie 2.0'. Siehe dem Bild oben werfen wir die Bedeutung (die Menge aller Kategorien einer Begrifflichkeit) per Beamer an die Wand. Wir sind nicht in der Schule, d.h. es gibt keinen Zeitdruck, keine Noten, keinen Wettbewerb und keine Profilierungsmotive, sondern jeder hat alle Zeit der Welt um über die schematisch dargestellte Bedeutung nachzudenken - und diese zu hinterfragen. Die grafisch dargestellten Bedeutungen des Algorithmus sind nicht perfekt. Es geht nicht darum irgendetwas zu akzeptieren, sondern andersherum: die Bedeutung anzugreifen und zu verbessern. Jeder kann sie ändern! Die Diskussion ist also eröffnet. Jeder muss Gründe angeben. "Kann ein Walfisch ein Wellensittich sein?" \~> Natürlich nicht, denn Säugetiere sind keine Vögel. "Kann ein Fenster ein Getränk sein?" \~> Jeder weis, das ist unmöglich, denn Festkörper sind keine Flüssigkeiten. "Kann eine Demokratie eine Republik sein?" "Kann eine Vermutung eine Meinung sein?" "Ist etwas zu begreifen das Selbe wie etwas zu verstehen?" Nichts regt dermaßen zum nachdenken an wie die Bedeutung der Begrifflichkeiten algorithmisch stabilisiert zu systematisieren. Und wenn wir uns nicht einig werden? Die Diskussion läuft auch nach der Veranstaltung weiter. Jeder kann online von zuhause die Diskussion fortführen - mit dem selben mitdenkenden Algorithmus. Man könnte sagen, es sei ein neues Gesellschaftsspiel - ohne Wettkampf, sondern in kollektiver Bereicherung an Klarheit, von der alle gigantisch profitieren, obschon jeder nur einen sehr kleinen Teil beiträgt. Das "Spiel" funktioniert auch mehrsprachig, denn der platonische Raum der Begrifflichkeiten ist der eindeutige Raum, auf den das Vokabular einer Sprache nur referiert. Man kann auch von Zuhause aus online mitmachen. Den Zugang können wir dann über die Kommentare hier organisieren. Bring deinen Laptop mit, dann wird es einfacher... Dieses Spiel macht klug: Schach trainiert zwar das Konzentrationsvermögen, hat aber mit der Wirklichkeit nichts zu tun. Dieses Spiel hingegen schon, denn genau mitdenken zu können setzt voraus genau zu unterscheiden. Wer die Bedeutung der Wörter sauber ausdifferenziert wird immer klüger. Mach mit!

**What happens when artificial intelligence meets very human emotion?** This Wednesday, **Mercury Toastmasters Berlin** explores that question inside the *Historic Imperial Breakfast Hall at **Das Center, Potsdamer Platz.*** *In a world shaped by algorithms, one skill becomes more powerful, the ability to speak with clarity, empathy, and presence.* *Experience the **power of prepared speeches** loaded with bold ideas, participate in our **dynamic Impromptu Session**, and **gain valuable insights** during our feedback segment.* Leave with practical tools, fresh ideas, and renewed inspiration. Whether you want to speak up at work, boost your presence, or just meet inspiring people, you’ll feel at home at Mercury Toastmasters Berlin. *** **[What to Expect:](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)** ✨ A supportive space to speak, grow, and connect 🎤 Engaging prepared speeches ⚡ Fun, fast-paced impromptu speaking challenges 💬 Feedback session you can actually use 🌍 A friendly, international crowd (around 25–30 people) **Schedule** (times may vary) ⏰ 19:15 - Doors open & networking 🎙️ 19:30 - Prepared Speeches 🏓 20:35 - Impromptu Session (Guest welcome to join) ↩️ 21:00 - Constructive feedback 💬 21:30 - Food, drinks & relaxed socializing **No experience needed.** ***Come curious. Leave energized.*** *** **🤙 [Hear it from our members:](https://maps.app.goo.gl/eRtvR9DRNqU9WZQn7)** *“You can sharpen your public speaking skills and gain tons of confidence, while having fun and making new friends. Mercury is well-structured, fun, and affordable.”* — *Therese Pitt* *“Mercury gave me a safe place to speak, create, and grow. I love the multicultural vibe and supportive community. It’s the best place to learn and have fun.”* — *Krisztina Linka* *** **[Did You Know?](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)** Toastmasters is where people go to get better at speaking—and grow into confident communicators and leaders. Today [Toastmasters ](https://mercurytoastmasters.de/about-mercury-toastmasters-berlin/)has 350,000+ members across 16,000 clubs in 143 countries. And [Mercury](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/) is one of the best places to experience it. So bring your curiosity, your energy—and just be yourself. Whether you’re just starting or ready to level up, there’s a place for you here. *** **[Wondering what you get as a member?](https://mercurytoastmasters.de/membership-mercury-toastmasters-berlin/)** Think expert feedback, real-world speaking practice, and a supportive crew that’s got your back. [See you Wednesday night! 🎉](https://mercurytoastmasters.de/find-toastmasters-meetings-in-berlin/)

Still hesitating to start your album? Find out about the process of creating an album from scratch with a professional music producer. **This event is free and open to everyone!** Please RSVP on the [343 Labs Website](https://343labs.de/events/releasing-an-album-min-t/) to save your seat! Join us: **Wednesday, February 18** **18:30–20:30** **House of Music (343 Labs, 2nd floor)** **What to expect:** * **Production:** Developing a song structure, finding matching sounds, and keeping the workflow fast and focused * **Melodies** **and vocal harmonies:** Crafting musical and vocal elements while planning for live performance possibilities * **Mixing:** Streamlining the mixing process without losing creative momentum * **Vision**: Maintaining cohesion across an entire project and keeping every track aligned with the bigger picture.

All thx to the sponsor! **Line-Up:** 👉 *TBD* by TBD **Speaker Bios:** 🗣 *TBD*

\*\*\*DEUTSCHE VERSION UNTEN STEHEND\*\*\* 🌟 Calling all Soulful and Energetic Voices that wanna tell stories! 🌟 Hey there, vibrant souls! 🎤 Are you ready to ignite the stage with your youthful energy and passion for music? Join our electrifying urban pop & musical ensemble, where voices come together in a celebration of song and joy! 🎶 Picture this: a dynamic fusion of historic and contemporary pop, musical hits, and soulful melodies, all brought to life by voices bursting with youthful exuberance! 🎵If you're between 15 and 45 and crave the thrill of harmonizing with fellow music lovers, this is your golden ticket! 🌈 Rehearse with us every Thursday from 7:30-10 pm in the heart of Kreuzberg, and experience the sheer exhilaration of making music with kindred spirits! 💃🕺 So, what are you waiting for? We're on the lookout for singers who bring their prior solo and ensemble experience to the mix – voices that stand out and harmonize seamlessly with the sound of the ensemble. 🌟 Are you ready to add your voice to our chorus of excitement? Send us a private message expressing your interest, vocal range, and any singing experience you bring to the table. Let's turn up the volume on fun and create memorable musical moments together! 🎉 🎶 **Day doesn't fit, too little singing experience, or not in the required age group? No problem!** I conduct several choirs with different profiles: **Shabach! *– the choir not only for shy people*** (https://www.meetup.com/de-DE/shabach-berlin-the-choir-not-only-for-shy-people/) **DEUTSCHE VERISON:** Liebe Nachbarn, wir haben 2023 das neue urbane Pop- & Musical-Ensemble "SHOWTIME!" in Kreuzberg 61 ins Leben gerufen, Altersspanne ca. 15-45 Jahre, in englischer und deutscher Sprache. Wir singen Popsongs, Musicals, und Filmmusik. Das Level ist für Fortgeschrittene und die Sänger\*innen sollten über eine gewisse Gesangserfahrung verfügen. Der Chor probt **jeden Donnerstag von 19:30-22:00 Uhr im Gewölbekeller der Kapelle-am-Urban, Grimmstr. 10, Berlin-Kreuzberg.** Falls es Dich interessiert mitzumachen: Schreib mir bitte vorab Dein Interesse und Deine Stimmgruppe / Erfahrung kurz per Privatnachricht. Danke. **Keine Zeit an dem Tag, zu wenig Gesangserfahrung oder außerhalb der Altersgruppe? Kein Problem!** Ich leite Chöre mit verschiedenen Profilen: **Shabach! *– der Chor nicht nur für Schüchterne*** (https://www.meetup.com/de-DE/shabach-berlin-the-choir-not-only-for-shy-people/)

**Rust Berlin on location 🏳️‍🌈** is a new, informal in-person Rust meetup group in Berlin. We are a interactive meetup format interested in mob coding, deep diving and problem solving together. We build toy projects, share experiences, discuss technology and learn new cool stuff. And you are welcome to join! No matter if you are writing Rust production code every day, if you already contribute to Open Source projects or want to start doing so, if you use Rust in hobby projects or if you are just curious what the hype and buzz is all about, you are very welcome! To coordinate and plan activities, please join our **[Rust Berlin on location 🏳️‍🌈](https://signal.group/#CjQKIApfEgb36v82nhIb7m6zLCQjEtSEZubR7UvywTcWZXxdEhBWxhMWNCKekvtCYX7iDRRm)**[ Signal group](https://signal.group/#CjQKIApfEgb36v82nhIb7m6zLCQjEtSEZubR7UvywTcWZXxdEhBWxhMWNCKekvtCYX7iDRRm)! **Planned programme** Being an informal meetup, we are open to anything between just meet and talk, explore nerd snipes and rabbit holes, mob code together, plan and build fun projects, tinker with electronics, and presentations with Q&A. This time, Flix will walk us through error handling approaches in Rust — from typed error enums to crates like anyhow and thiserror — and present his own take: neuer-error, a single-type error library that captures source locations instead of backtraces and provides typed, discoverable error context without generics soup. Then Raf will show off a fun project that renders canvas primitives with vector and matrix geometry, built from scratch with zero dependencies. If someone brings other cool stuff, questions or problems, then let us dedicate the second half of the meetup time to that! Anyone is invited to bring their projects and questions, show something, ask something, or explore a topic together. The best conversations and deepest rabbit holes can emerge out of seemingly nowhere. **Projected upcoming meetups** We schedule regular meetups on Thursday evening every four weeks, using the slot between the Berlin Rust Hack and Learn online meetup (every two weeks), and the Rust Nuremberg online meetup (every four weeks). 19 February 2026 is our eleventh meeting. Our next projected meetings are going to occur on the following dates: * 19 Feb 2026 * 19 Mar 2026 * 16 Apr 2026 * 14 May 2026 (tentative, public holiday) * 11 Jun 2026 * 9 Jul 2026 * 6 Aug 2026 **Location** Our meetup location is the new shared office community space of Ferrous Systems, Slint and KDAB in Berlin Mitte, for up to 25 people. We are expecting to use this space as our default location for the time being, with the IN-Berlin e.V. community space in Moabit as backup. Regardless, as our group might eventually outgrow the locations' size limit, we are low-key looking for bigger locations. If you know a fitting location, then please let us know in our Signal group! Another workable way might be to split the meetup into smaller, interest-specific sub-groups instead. As the no-show rate on Meetup.com is rather high, consider showing up even if you are on the waiting list. We can't promise that there is any space left, but usually there is. So give it a shot! **Accessibility** The location has an elevator and a wheelchair accessible bathroom. Please note that the bathroom is two floors down from the meetup space. On our quest for a bigger location, we are going to pay special attention to accessibility. **Community** We aim to create a safe place for everyone and adhere to the [Berlin Code of Conduct](https://berlincodeofconduct.org/). Inclusivity is very important to us. If you are curious about Rust, but unsure if you are welcome to join: Yes, yes you are. Please come to the meetup! If you have special needs, please get in contact, we will try to accommodate you as best we can. We are part of [https://berline.rs/](https://berline.rs/) and like to hang out in the Berlin Rust Hack and Learn online meetup's [Matrix channel](https://matrix.to/#/!xycQxSjSAvEezkyztA:chat.berline.rs). You are very welcome to join!

📆 Agenda * 19:00 Welcome to the PUB (Python Users Berlin) – setting up * 19:15 Main talk * 20:00 Lightning talks * 20:30 Social gathering 🎙 Main talk by [@esc](https://github.com/esc): Whirlwind tour of [Numba](https://github.com/numba/numba) In this talk I will take you on a whirlwind tour of Numba -- the Python just-in-time (JIT) compiler. I will equip you with with a mental model of how Numba works and what it is good at. At the end, you will be able to decide if Numba could be useful for you. 📚 Resources * https://github.com/esc/numba-talk ⚡️ Lightning talks Time will be open at the end of the night for lightning talks (short 5 minute presentations). Please bring your ideas and inspirations with.

In this Yin practice, we take time to pause, soften, and simply be. With the support of long-held, floor-based postures, the body gradually opens, accessing the deeper layers of fascia and energy pathways. We allow gravity to guide the process. This subtle work calms the nervous system, nurtures stillness, and encourages quiet reflection. It's an opportunity to release tension from both body and mind, and to reconnect with yourself on a deeper level. The class is led in English and is open to all levels. .

Join us for the next Spring User Group Berlin meetup! This time, we are bridging the gap between rock-solid operations and developer joy. **Talk 1: Secure and Seamless: Injecting Kubernetes Secrets into Spring Applications** *Speaker: Dmitriy Goi, Deutsche Bank* Look, we’ve all done it. You need a database password, so you throw it into an environment variable and call it a day. It works, it’s fast, and your app starts up. But then the security audit hits, or your credentials rotate and suddenly your logs are full of connection errors because your Spring context is stuck in the past. At Deutsche Bank, "good enough" usually isn't. I’ve spent the last few years moving Spring apps into Kubernetes and realizing that most tutorials lie to you. They show you the easy way, not the way that survives in production. I’m going to show you why environment variables are a security trap and how mounting secrets as files actually works (and where it breaks). We’ll get into the mess of secret rotation, why you probably need a CSI driver or an External Secret operator, and how to make Spring Boot actually pick up those changes without a manual restart. **About the speaker:** A passionate software engineer at Deutsche Bank, Dmitriy brings 8 years of development experience to his focus on modernizing application development. He specializes in Spring Boot and Kubernetes and is currently helping lead the charge on migrating key applications to a hybrid cloud environment, emphasizing secure and efficient engineering practices. \-\-\- **Talk 2: Adopting Kotlin for Spring 7: Cleaner Code, Fewer Bugs, Some Tradeoffs** *Speaker: Daniil Tsarev, JetBrains* Kotlin is becoming a first-class citizen in the Spring ecosystem, especially with the latest features in Spring 7. In this talk, we'll explore how easy it is to adopt Kotlin in existing Spring projects, what tangible benefits it brings to everyday development, and where some edges still are. Expect practical examples, real-world tradeoffs, and an honest look at whether Kotlin is the right choice for your Spring stack. **About the speaker:** Daniil Tsarev is a Software Developer at JetBrains with over 10 years of experience working with the Spring ecosystem. Previously was developing a Spring-based full-stack framework for enterprise solutions. Now passionate about developer productivity, he’s dedicated to creating tools and solutions that make developers’ lives easier. **📅 Agenda** [**18:30**]: Doors open, food, drinks & networking [**19:00**]: Talk 1: Secure and Seamless (K8s Secrets) [**19:45**]: Short break [**20:00**]: Talk 2: Adopting Kotlin for Spring 7 [**21:00**]: Q&A and more networking [**22:00**]: Closing the doors Come for the knowledge, stay for the community. See you there! \-\-\- 📍 Venue Details 📌 Postal address: Otto-Suhr-Allee 16, 10585 Berlin 🚪 Entrance: Otto-Suhr-Allee 16: New Building 🚆 Getting there by public transport 🔴 Subway: U2, stop "Ernst-Reuter-Platz" 🚌 Bus: 245, M45, stop "Ernst-Reuter-Platz" 🚶‍♀️🚶 How to find the right entrance: 1️⃣ From Ernst-Reuter-Platz (U2 station or bus stop), walk towards the high-rise Deutsche Bank building with a bank branch. 2️⃣ To the left of this building, you’ll see Otto-Suhr-Allee 16: New Building. 3️⃣ At the very front of the building, you’ll see Dave B. café☕ , which means you’re almost there, yay! 🎉 4️⃣ Walk past the café Dave B. and head to the first entrance of the office building with glass rotating doors (it will be on your left). 5️⃣ Signage with the event name will be placed near the entrance. 6️⃣ You made it! Enter and proceed to check-in at the reception. \-\-\- **IMPORTANT** ⚠️ Check-In Procedure ‼️ Your full name must be correctly listed in your RSVP (e.g., Max Mustermann). ❌ Incomplete or unclear names (e.g., j, j k, Happy Cat) will not be allowed entry due to strict security policies. ✅ Please bring a valid ID 🆔 for name verification at the entrance. If you'd rather not change it here, just message me your name on LinkedIn or via email so I can add you to the guest list. You can find all my contact info at [https://asm0dey.site](https://asm0dey.site.)

**⭐ NOTE THE NEW LOCATION! ⭐** The Creative Code Jam is a monthly gathering of artists, makers, designers, illustrators, coders, musicians, performers, learners and anyone interested in the use of computing skills for artistic expression. The event is free and open to all, regardless of age, origin, gender or experience. The jam is an opportunity to meet likeminded people and get creative together in a relaxed and safe environment. Beginners and first-timers should feel especially welcome! WHAT SHOULD I EXPECT? **Bring a laptop** and/or anything you’d like to work on, whether it’s a personal project, an experiment, or a skill you want to learn. You can come with friends or meet new people here. There’s no set agenda: some people code, some sketch ideas, some collaborate, and others just chat and get inspired. SCHEDULE Doors open at noon, then we’ll have quick introductions so everyone can share what they’re planning to work on. Note: arriving on time is the best way to hear what others are up to ;) Around 6 pm, we gather to share what we’ve worked on during the day. BEGINNERS WELCOME! If you’re new to creative coding, we'll be happy to help you get started, and you can find beginner-friendly resources at [creativecode.berlin/learn](http://creativecode.berlin/learn). THIS IS YOUR SPACE We do our best to create a welcoming environment for all people regardless of race, ethnicity, color, religion, gender identity, sexual orientation, national origin, age, disability, or genetics. People from group generally underrepresented in open-source, art, and technology fields are warmly encouraged to come by. And if you know someone who might enjoy this meetup but isn’t sure it’s for them, let them know they’ll be welcome! SAFE SPACE POLICY We support the Berlin Code of Conduct: https://berlincodeofconduct.org/ Please make sure you agree with its content. ABOUT MotionLab.Berlin MotionLab.Berlin is Germany’s premier Innovation Hub & Makerspace – an ecosystem for Hardtech, art, creativity, and entrepreneurship. They are an international community with access to state-of-the-art machinery, prototyping machines, coworking spaces, offices, and production facilities. More info: https://motionlab.berlin/ ACCESSIBILITY MotionLab is located on the ground floor, with bathrooms on that same level, although unfortunately they are too small for wheelchairs. FOOD MotionLab has drinks and snacks for sale. Bio food can be found on LPG at Bouchéstr (\~200m). Their cantine has vegan, vegetarian and other food options until 8pm. DO I NEED TO SPEAK GERMAN? We speak mostly English so international guests are more than welcome! Our team also speaks French, Turkish, Italian, Spanish, Dutch, Finnish and German... though language availability may vary depending on which organizers are present :) CONTACT Raphaël de Courville team@creativecode.berlin +49 176 700 70572 or get in touch via [creativecode.berlin](https://creativecode.berlin/)

Join us on **Thursday, February 26** at **Datadog Times Square**. Doors open at 6:30 p.m. to give attendees plenty of time to grab pizza and socialize, and the talk begin at 7:15 p.m. Following the success of the UnConf we've absorbed all of your feedback and have two awesome speakers! **Robin Molen-Grigull is CTO at Fullstack.Trade** \- a stealth mode firm focused on high performance compute and latency in the Web3 space\. **Storage Tetris: Compile-Time Solutions for 32-Byte Storage Constraints** Fitting arbitrary Rust structs into fixed 32-byte storage slots is a puzzle, but Rust’s macros and type system make it solvable. Automatic layout and lazy loading, combined with a small macro, turn low-level storage primitives into clean .field() accessors. Associated types and compile-time offset calculations eliminate manual storage arithmetic while remaining zero-cost. **James Logan is a Principal Scientific Software Engineer at Commonwealth Fusion** **Interpn: Fast Interpolation** James Logan recently delivered a ten minute lightning talk at Rust Boston. The goal of that talk was to share "Everything I learned making software 300x faster than state-of-the-art". James has used Interpn in a way like never seen before, improving performance in a way that is unimaginably unique and can be applied by so many engineers. This is definitely one not to be missed. **[Lawrence Harvey](https://www.lawrenceharvey.com/)** is Rust NYC's official recruitment partner, with Ross providing support as a co-organizer and financial support. The space is generously sponsored by our partner **Datadog.**

New to the Appalachian Mountain Club? Looking to connect with other folks who love getting outdoors? Come meet new AMC friends on a walk around Randalls Island! Explore the beauty of the city by walking a circuit around Randalls and Wards Islands. Enjoy the river views, bridge views, and extraordinary Manhattan and Queens skylines. My favorite experience is walking across the Salt Marshes and under the Hell Gate Bridge. We'll walk at a leisurely pace on paved terrain for about 5 miles with little elevation gain, stopping at points of interest. Wear comfortable walking shoes and warm clothes in case a cold wind blows across the water. If you are new to the AMC, this is a great starter event! New and existing members, as well as prospective members are welcome!! Meet at 11:00am at the Randalls Island side of the 103rd Street pedestrian bridge. If you're coming from Manhattan, you're welcome to join the leaders at 10:30am on the Manhattan side of the 103rd Street bridge (and and Bobby Wagner Walk). Randalls Island can also be reached by pedestrian walkways along the RFK Bridge crossings, as well as the M60 SBS and M35 buses from Harlem. Register for this event at [activities.outdoors.org](https://activities.outdoors.org/s/oc-activity/a5UVX0000011IS92AM/act00019054). You may RSVP on Meetup but will need to register on [activities.outdoors.org](https://activities.outdoors.org/s/oc-activity/a5UVX0000011IS92AM/act00019054) when you arrive. AMC Health Advisory: Covid and other respiratory illnesses are circulating in our communities. Do not participate in this activity if you, or someone who you have recently been in contact with, is either infected or symptomatic. *[Become an AMC Member](https://www.outdoors.org/get-involved/become-a-member/?chapter=NY&campaign=7012J000001R5F0QAK&_gl=1*1wrdhy4*_gcl_au*MzUyNjI2Mzk0LjE3NjMzOTQxMjkuMTgyMDgzNzA3OS4xNzY2MjAyNjczLjE3NjYyMDI2NzM.*_ga*MTE0MDUxMjkyMy4xNzQ3MDcyNjcw*_ga_NDC0EQDH7W*czE3NjY1MTExODkkbzEyNSRnMSR0MTc2NjUxNzQzNyRqNjAkbDAkaDA.)* *and enjoy benefits such as discounts to events & lodging. You will also support hundreds of free or low-cost outdoor experiences, thousands of miles of trails, hundreds of thousands of acres of protected wilderness, outdoor leadership education, access to nature for everyone, conservation advocacy and your local volunteer leader*

**We are looking for hosts and speakers.** Please fill out [this form](https://bit.ly/iOSoho-Meetup-Talk-Submission) if you would like to host or speak at future events. • Special thanks to **[Radar](https://radar.com/)** for hosting us this month. Food and drink will be provided! There will be a **raffle for Radar AirPods** for in-person attendees! Welcome to yet another great evening of learning and networking! This event will be held **both in person and online**, and for the first time (as far as we can recall) on a Thursday! **Agenda:** • 6:00 PM - Doors Open (in-person attendees). **Don't forget your ID!** • 6:30 PM - Welcome (in-person and Zoom attendees) • 6:35 PM - **First Talk: The Bar is on Which Floor? Improving Altitude and Floor Detection** • 7:05 PM - Community Announcements • 7:15 PM - **Second Talk: Beyond the Sandbox: Secure iOS Development in an Era of New Security Standards** • 7:45 PM - Networking • 8:30 PM - Doors close. Regroup at a bar nearby ([Old Town Bar](https://maps.app.goo.gl/2kigoa6ZMbgC1scG8)) **First Talk Description:** • The Bar is on Which Floor? Improving Altitude and Floor Detection Liam Meier, Director of Engineering at Radar iOS can estimate a device's altitude. In real world conditions, this estimate is far less accurate and reliable than horizontal (lat/lng) positioning, which makes the question "which floor is someone on?" hard to answer. Leveraging little known sensors in mobile phones and clever correction techniques enabled by at-scale deployments, we're able to determine mobile device altitude and floor level with markedly higher accuracy than what's available today. Liam Meier is Director of Engineering at Radar, where he leads the team behind Radar’s leading geolocation platform and mobile SDKs, deployed on over 300 million devices. Previously, he founded and built products at early-stage startups. In a past life, he studied galaxy formation under the influence of dark matter — helpful training for making sense of noisy sensor data. **Second Talk Description:** • Beyond the Sandbox: Secure iOS Development in an Era of New Security Standards Mike Sanderson Even as mobile apps have come to handle sensitive medical, financial, and personal information, the practices of secure mobile app development has remained a patchwork of received wisdom and platform constraints, with developers who want to practice secure development are often unclear on how to do so or what that even means. In the past few years, leaders in security standards have increasingly seen the need to for digital security incorporate secure coding earlier into the software development process, known as "shift left," and included references to systematic cybersecurity standards. This talk will look at how secure mobile app development fits into the larger security picture, including the security of the iOS platform and the MacOS platform apps are developed on. The talk will look at sources for guidance for secure iOS software development, in particular the OWASP flagship Mobile App Security project and other OWASP efforts. The idea will be to start to equip iOS developers not only to make good decisions but to systematically identify best practices and understand how they fit into the larger security picture. Mike Sanderson is a writer and computer programmer who has worked on iOS apps full-time since 2013, including working with a launch partner of Apple Wallet in iOS 9, working on a secure message app at scale, and independently finding and reporting an authentication-bypass bug on a medical iOS app, which was confirmed. Recently, Mike has provided comments on several National Institute of Standards and Technology (NIST) draft papers related to cybersecurity. **Location:** 111 5th Avenue Floor 12 New York, NY 10003 Please enter through the main lobby on 5th avenue, next to H&M. Then head to the 12th floor. **What you need to bring:** ID **When to arrive:** Doors open at 6:00pm ET Event will start around 6:30pm ET **Zoom link:** You can join virtually here (link will be provided the day of the event). Note we will start the Meetup around 6:30pm ET **Will food and drinks be provided?** Yes! Thank you [Radar](https://radar.com/)! **Call for speakers and hosts:** Please fill out [this form](https://bit.ly/iOSoho-Meetup-Talk-Submission) if you would like to host or speak at future events. **Code of Conduct:** The iOSoho Meetup is dedicated to providing a safe Meetup experience for everyone, regardless of gender, identity, gender expression, sexual orientation, disability, physical appearance, body size, race, ability, ethnicity, socioeconomic status, or religion (or lack thereof). iOSoho Meetup does not tolerate harassment of Meetup participants at any time or in any form. Our Code of Conduct outlines our expectations for all participants. All communication throughout the Meetup should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery is not appropriate for any part of the event, including talks, or at the Meetup venue. Please be kind to others. Do not insult or put down other attendees. Behave professionally and respect the policies of our generous hosting offices. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate for the Meetup. Attendees violating these guidelines will be asked to leave the Meetup group and Meetup events at the organizers' sole discretion. If you need to report something happening at or about the iOSoho Meetup, please contact the [organizers](https://www.meetup.com/iosoho/members/?op=leaders). Thank you for helping make the iOSoho Meetup a welcoming, friendly event for all!

Ready for a truly unique adventure? Come explore India and Dubai with us! We’ll wander through the colorful streets of **Delhi**, take in the beauty of the **Taj Mahal**, and soak up the royal vibes of **Jaipur.** To top it all off, we’ll celebrate Holi—the festival of colors—like locals do, in an authentic and joyful way! **But that’s not all!** After India, we’ll enjoy a bonus 3-night stay in the glamorous city of **Dubai**, one of the world’s most fascinating cities. From jaw-dropping skyscrapers to desert sunsets, Dubai is the perfect mix of modern luxury and deep-rooted tradition. This isn’t your typical tour. It’s a Meetup-style journey filled with curiosity, connection, and shared experiences. We’ve done this trip before, and every time it’s been more than just a vacation—it’s been eye-opening, transformative experience that connects you to new perspectives, cultures, and unforgettable memories with new friends. *What is included in India* ➢ 2 Nights’ stay in Delhi ➢ 2 Nights’ stay in Agra ➢ 3 Nights’ stay in Jaipur ➢ Meals : 7 breakfasts, 6 lunches, and 6 dinners ➢ Round trip airport transfers by air-conditioned vehicle ➢ Local English-speaking guides for sightseeing ➢ Entrance fees to monuments as per itinerary ➢ Rickshaw ride at Chandini chowk (ancient bazaar) in Delhi ➢ Elephant ride in Jaipur (subject to availability) ➢ Old and New Delhi sightseeing included Rickshaw ride ➢ Agra sightseeing included Magnificent Taj Mahal and Agra fort ➢ Jaipur sightseeing included with Amer fort, Hawa Mahal and Jal Mahal ➢ Holi celebration in Agra ➢ All taxes, driver allowances, parking etc. *What is included in Dubai* ➢ 3 Nights’ accommodation in Dubai with breakfast ➢ Meals: 3 breakfast, and 2 dinners ➢ Round trip airport transfers in Dubai on private basis ➢ Driver/Guide in Dubai ➢ Half day Dubai City Tour (Includes Photo Stop at Burj Al Arab, Photo stop at the Atlantis at the Palm Island, Visit to Gold and Spice Souks etc.) ➢ Dhow Cruise with Buffet Dinner ➢ Desert Safari with BBQ dinner (4x4 sharing vehicle) & Arabian Tanoura dance show and belly performance ➢ All taxes and tourism Dihram *What is not included:* ➢ Any International/Internal Airfare ➢ Visa, insurance ➢ Any meals other than specified in cost include ➢ Porterage, tips, laundry, beverages, cost of personal nature like telephone charges ➢ Any sightseeing not mentioned in inclusions **Cost:** * **$3990 per person (based on room sharing)—we offer easy roommate matching!** * **Prefer a room to yourself? Solo supplement is $1500 for a total of $5490** RSVP with your email address to receive detailed Day-by-Day itinerary or [fill out this form](https://forms.gle/cQdqYw74gAYqphXX8). **If you wish to attend, deposit of $250 is the only way to secure your spot. Please pay the deposit through this secure [Deposit Link](https://www.paypal.com/instantcommerce/checkout/4XM44PYUEYJEJ).** Deposits are refundable up to 90 days before departure. **Airfare is not included**, but we are holding a group space from Los Angeles for $1299 including all taxes and the flight from Delhi and Dubai. To secure you airfare from LAX submit a **nonrefundable $200 deposit [HERE](https://www.paypal.com/instantcommerce/checkout/W5DSZYQWFTBEQ)** **If you are not in LA, we can help you arrange the airfare from any other city.** **Space is limited** and this event is cross posted to our sister groups. RSVPs on this post do not reflect actual number of participants. Don’t wait—this trip will sell out fast! \*\*\*[Click Here ](https://forms.gle/cQdqYw74gAYqphXX8)\*\*\**to fill out our google info request form for detailed itinerary on this or any of our other international events.* Got questions? [Click Here](https://www.meetup.com/members/14363992/) to message Ekaterina direct with any questions. Still have questions? We do a monthly [Q&A Travel Zoom](https://www.meetup.com/moretoexplore/events/297487010/) on all our events. **We believe in good decent social!** We have a set of sister groups where we post our local free events, local/regional camping getaways, and our overseas trips too. ***[Click Here](https://www.meetup.com/CulturalArts/Events)***[ to see all our events](https://www.meetup.com/CulturalArts/Events) Our events create and foster community and a sense of discovery. We welcome and are inclusive of all. ***Live the adventure instead of only dreaming it!*** SOT 2000318-10

**SREday: In-Person Event on SRE, DevOps & Cloud in NYC** Conference focused on Site Reliability Engineering (SRE), DevOps, and cloud infrastructure, bringing together engineers, platform teams, and leaders to share real-world experience building, scaling, and operating reliable production systems. **🎤 [Speakers & Topics](https://sreday.com/2026-nyc-q1/)** **🎟 [Tickets](https://luma.com/sreday-nyc-2026-Q1?from=embed)** Get your ticket — 50% OFF with promo code: MEETUP50

*Please reach out to the organizer after sign-up if you have trouble getting a copy of the book!* This book club is for women in STEM to explore workplace related themes that are centered on women, STEM, philosophy and leadership. Through these book explorations we share experiences, exchange new ideas, and empower each other through friendly conversations and community. *** *Awakenings* by Oliver Sacks *Awakenings* is the remarkable account of a group of patients who contracted sleeping-sickness during the great epidemic just after World War I. Frozen in a decades-long sleep, these men and women were given up as hopeless until 1969, when Dr. Sacks gave them the then-new drug L-DOPA, which had an astonishing, explosive, “awakening” effect. Dr. Sacks recounts the moving case histories of these individuals, the stories of their lives, and the extraordinary transformations they underwent with treatment. This book, which W. H. Auden called “a masterpiece,” is a passionate exploration of the most general questions of health, disease, suffering, care, and the human condition. ([source](https://www.oliversacks.com/oliver-sacks-books/awakenings/)) *** Whether you love or hate the book, read one chapter, or happened across this description and found yourself interested, come join us for coffee and conversation! Feel free to reach out for any questions. \*\*\* Early Bird Ticket: $1 After February 7th: $5 **What is the $5 fee for?** For over three years, we've been organizing free events for all members, and we're grateful for your active participation. The $5 fee helps us continue what we do—bringing incredible women together and sparking meaningful connections. These funds cover essential costs like the Meetup organizer fee ($130/year) and website maintenance. Any extra contributions will go toward our annual [NYC Women in STEM Networking Event](https://www.nycwomeninstem.org/events/past/). Sincerely, Daniela

**DevOps Not Dead: In-Person Event on DevOps, Platform & Cloud in NYC** Conference focused on modern DevOps, platform engineering, and cloud infrastructure. It brings together engineers, SREs, and platform teams to share practical experience in CI/CD, Kubernetes, automation, cloud architecture, reliability, and operating production systems at scale. **🎤 [Speakers & Topics](https://devopsnotdead.com/2026-nyc-q1/)** **🎟 [Tickets](https://luma.com/4ym0xkfw?from=embed)** Get your ticket — 50% OFF with promo code: MEETUP50