PureScript

**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

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**

Intermediate players Only. 5-10 Euro/ hour per guest, depending on number of total attendant people. Address: Tennisschule Netzroller - FVT Sangerhauser Weg Google Maps: https://maps.app.goo.gl/5dpajZgt95HUDQBC8?g_st=ic Join us for competitive but friendly tennis in Berlin! About me: * One regular players * Around NTRP 3.5 - 4.0 level * Comfortable with both singles and doubles * Consistent rallying and match play * Friendly but genuinely intermediate level I am looking for: * Intermediate players only * Roughly NTRP 3.0+ (Mittelstufe / fortgeschrittenes Freizeitniveau) * German equivalent: Fortgeschrittenes Freizeitniveau * Reliable rally skills * Bring your own racket Schedule: * Thursday: 19:00–21:00 * Saturday: 17:00–19:00 Format: * Singles: 1vs 1 * 1 vs 2 * Doubles:2 vs 2 * Flexible depending on numbers Group size: Ideal: 2–4 players Max: 4 players per session Important: * Bring your own racket * Court costs split fairly if applicable(0-10Euro per person hour ) * Friendly, respectful atmosphere * No beginners please If you’re looking for enjoyable but quality tennis without inflated ratings, feel free to join!

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/)! 🕊️

**Wir genießen ein paar Snacks und einander kennenlernen ein bisschen. Danach sitzen wir in Gruppen und reden über verschiedene Themen.**

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

## A space where creativity flows, conversations open & ideas come to life. Relax after work and step into a chill, social atmosphere designed for drawing, painting & connecting. Whether You know it as *Drink & Draw*, *Sip & Paint*, or *Wine & Paint*, this experience brings together the best of art, people & good energy — all in one place. Our sessions are perfect for all levels — whether You’re picking up a brush for the first time or already feel at home in art. With easy and encouraging guidance from our Creative Teachers, You’ll create Your own artwork using pencils, acrylic paints and/or oil pastels, while enjoying a laid-back & inspiring environment. Whether You’re coming with colleagues, meeting friends, planning a date, or simply taking a moment for Yourself after a long day — this is Your space to relax, connect &express Your creativity. ‍ > Each session offers a new theme, fresh inspiration &the chance to take home something You created Yourself. ‍ ##### **INCLUDES:** **‍**All Materials (canvas, pencils, acrylic paints, oil pastels, brushes & more) + 2 glasses of wine / cocktail (2 × 200 ml) or 2 Soft Drinks & Water ‍ ##### **SIGN UP & TICKETS:** **‍**No registration needed. Simply come by & get Your ticket at the box office before the class. ‍ LEVEL: All levels WHAT YOU NEED: All materials provided (canvas, acrylic paints, oil pastels, brushes & more) COSTS€28 General \| €5 for DNA\. Members See You Soon :) Love. DNA.

**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!

**Deutsch** Schnapp dir deine Stricknadeln, dein aktuelles Projekt und strick mit uns! 🍻🧶 Wir treffen uns Samstags gemütlich in einem Pub – perfekt für alle, die gerne in netter Gesellschaft stricken. Alle sind willkommen, vom absoluten Anfänger bis zum Profi. Es handelt sich hier aber nicht um einen Kurs. Im Vordergrund stehen Plaudern, Lachen und gemeinsames Stricken. Bring dein Strickzeug mit, bestell dir gerne ein Getränk und genieße einen entspannten Abend mit Handarbeit und netten Gesprächen. Egal, ob du an deinem Projekt weiterarbeiten oder einfach nur die Atmosphäre genießen möchtest – du bist herzlich willkommen! **English** Grab your needles, your current project, and come knit with us 🍻🧶 This is a relaxed Saturday social knitting meetup in a local pub—perfect for anyone who enjoys knitting in good company. All skill levels are welcome, from absolute beginners to seasoned pros, but this isn’t a teaching workshop. Think more chatting, laughing, and stitching together than structured instruction. Bring along your own knitting materials, order a drink if you like, and settle in for an easygoing evening of craft and conversation. Whether you want to make progress on a project or just enjoy the vibe, you’re very welcome here.

\*\*\*Aus organisatorischen Gründen wurde die Veranstaltung auf den 30.5. verschoben. Wir entschuldigen uns für die Unannehmlichkeiten und hoffen, Sie an diesem Termin zahlreich begrüßen zu dürfen. \*\*\*Per motivi organizzativi, l’evento è stato spostato al 30/5. Ci scusiamo per l’inconveniente e speriamo di vedervi numerosi in quella data. Buongiorno, Berlino! (Versione italiana in basso) **Sprichst du Italienisch** und möchtest **dein Deutsch verbessern**? Oder liebst du Italien und möchtest die Sprache üben? Dann komm zu unserer deutsch-italienischen Konversationsgruppe! * **45 Minuten auf Deutsch und 45 Minuten auf Italienisch**\* * Tische nach Sprachniveau aufgeteilt * Brettspiele, Gesprächsmaterialien und Arbeitsblätter zur Vertiefung von Themen und Wortschatz * Entspannte Atmosphäre * Lerne neue Leute kennen \* Die Veranstaltungsleitung behält sich vor, den Ablauf der Veranstaltung je nach Sprachen und Teilnehmerzahl anzupassen. Preis: Spende nach eigenem Ermessen (Die kleine Spende hilft, das Event auf Meetup zu organisieren und Materialien sowie Spiele bereitzustellen.) Die Italienisch-Werkstatt stellt Wasser und Süßigkeiten zur Verfügung. Für dich ist dies eine tolle Gelegenheit, dein Italienisch bzw. dein Deutsch außerhalb des Unterrichts zu üben und neue Leute kennenzulernen. Die **Italienisch-Werkstatt** ist eine Italienisch-Sprachschule in Berlin, die seit 18 Jahren professionell gestaltete Kurse für alle Niveaus anbietet. Alle unsere Dozentinnen und Dozenten sind italienische Muttersprachler mit langjähriger Berufserfahrung und soliden Deutschkenntnissen. Hier ist unsere Internetseite mit Kursen von A1 bis C1: [LINK](https://www.italienisch-werkstatt.de/)(Italienisch-Werkstatt) Wir können dir Hilfe und Tipps geben, um dein Italienisch — und auch dein Deutsch — zu verbessern! Unsere Lehrkräfte sind Italiener, die selbst Deutschlernende waren oder sind 🙂 Wir freuen uns auf dich! ✨ Bis zum Event! ✨ IN ITALIANO Halli Hallo! **Parli italiano** e vuoi **migliorare il tuo tedesco**? Oppure ami l’Italia e desideri praticare la lingua? Unisciti al nostro gruppo di conversazione italiano–tedesco! * 45 minuti in tedesco e 45 minuti in italiano\* * Tavoli suddivisi per livello * Giochi da tavolo, materiali per la conversazione e schede per approfondire temi e vocabolario * Atmosfera rilassata * Conosci nuove persone \* La direzione dell’evento si riserva la possibilità di modificare la struttura dell’evento in base alle lingue e al numero dei partecipanti. Prezzo: donazione libera (La piccola donazione aiuta a organizzare l’evento su Meetup e a fornire materiali didattici e giochi.) Italienisch-Werkstatt mette a disposizione acqua e caramelle. Per noi questa è un’occasione fantastica per praticare entrambe le lingue al di fuori del contesto della lezione e per conoscere nuove persone. **Italienisch-Werkstatt** è una scuola di italiano a Berlino che da oltre 18 anni offre corsi per tutti i livelli. Dal 2008 proponiamo lezioni di italiano per ogni livello. Tutti i nostri docenti sono madrelingua italiani con lunga esperienza professionale e solide conoscenze del tedesco. Ecco il link per la pagina internet con la nostra offerta di corsi dall’A1 al C1: [LINK](https://www.italienisch-werkstatt.de/)(Italienisch-Werkstatt) Possiamo offrirti aiuto e consigli per migliorare il tuo italiano… e anche il tuo tedesco! I docenti sono insegnanti di italiano e sono stati — o sono tuttora — studenti di tedesco 🙂 Ti aspettiamo! ✨Ci vediamo all'evento ✨

***Welcome to the Actors Gym!*** * A fun, supportive training ground where actors play, experiment, and build their craft. * *Through engaging games and exercises, you’ll develop core acting skills and bring them to life by performing a short script at the end of every session.* * This drop-in class welcomes both new and intermediate actors eager to learn, stretch, and have fun. ‍ **DURATION:** 60 – 90 mins (depending on numbers) **ABOUT YOUR COACH:** Geoff is a dedicated professional teacher and actor. He is also active as a writer, director and producer of small-scale projects here in Berlin. He has performed on many stages – as actor, host, and improvisor – and in many short films, across the UK and Germany. He loves to meet and work with new actors, and has a real passion for discovering new talent. His acting profile may be found [HERE](https://www.filmmakers.eu/en/actors/geoff-mills). ‍ **SPOTS:** Everyone is welcome. Beginner-friendly. €15 General Admission (*pay at venue*) Free to members of [DNA Arts](https://www.dna-artclub.com/) \- a vibrant community of artists and performers\. **DNA** members have access to over 5 dance classes and 5 creative workshops each week, covering everything from singing, writing, and marketing to theatre, including also 5+ shows weekly, all completely free for our members.

Come along, grab a coffee, shut up, and write! We will do at least two sessions of each 45 minutes of writing and two breaks. We will start the first writing session at 11:15. **For space reasons, we are limited to a certain number of attendees, so please update your RSVP if you can't come**. We often have a large waiting list, and not updating your RSVP or not showing up if you do RSVP yes means that others miss out. We also ask that if you do change your RSVP, do it with reasonable notice. Thanks! We typically take over all of the cafe, but try to share tables if you can to allow space for other customers. If you are new, come and say hello, as we know that suddenly going quiet for 45 minutes and staring at that blank page can be intimidating when it's your first time. We have a lot of long-term regulars who will be happy to help you feel welcome. In between sessions, we have a Telegram chat: https://t.me/joinchat/ERW3pxD5kfELGeWs9SUhjw For more information, visit [https://shutupwrite.com](https://shutupwrite.com/).

Warning There's no way to predict how much the blossoms bloom. Keine Erfolgsgarantie: Wenn nichts blüht , sind wir durch die Grenzen der Natur eingeschränkt. A simple outside cook meetup to make and take home ready made elderflower syrup. In the tiny park near Blaschkoallee grow some wild elderflower bushes and we make syrup directly from the blossom. Holunderblütensirup selber kochen ist ganz einfach - ich zeige euch die Blüten und wie man daraus haltbaren Sirup herstellt :) Im Park an der Blaschkoallee wachsen einige wilde Holunderblütensträucher und wir machen Sirup direkt aus der Blüte.

* German below -
Please bring clean indoor shoes with you to the location <3 The event fee varies between 5 to 10 Euros. 

Hey You!
On Friday I will teach you a few basic steps of shuffling. We will break down the steps, in your time, in your style.
We will explore your own flow of your body to different kinds of music and how we can use it in shuffling. I want to create a safe space for everyone who is just starting their shuffle journey or is already on the path. 

Address:
Milastraße 4
10437 Berlin
“Aziza-tanzt Tanzschule” 

Hallo Du!
Diesen Freitag möchte ich Dir ein paar Basic-Schritte vom Shufflen zeigen. Wir werden die Schritte langsam durchgehen, in deiner Zeit, in deinem Tempo.
Wir werden den eigenen Flow entdecken und wie Du deinen Körper zu verschiedner Musik im Shufflen integrieren kannst.
Ich möchte für jede Person einen Safe-Space erschaffen, egal ob Du ganz Neu bist oder schon etwas gelernt hast. 

Adresse:
Milastraße 4
10437 Berlin
“Aziza-tanzt Tanzschule”

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/

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

**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

This is an in-person meeting. At this meeting you will get answers to depression and anxiety. Find out the source of them and how to get rid of them. Did you know that unwanted emotions like anxiety, depression, unhappiness, loneliness, hopelessness, anger, fear, or feelings of irritation don’t just fall on you for no reason. They are not random occurrences that simply happen to people's minds. They are definitely not due to a chemical imbalance in your brain from some nebulous chemical reaction "by chance". Your negative emotions are the symptoms of the painful experiences that you have which are not healed, and which are still affecting you. The effects of these painful experiences are exacerbated by the pressures or difficulties of the other problems in your life. Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Hubbard Dianetics Foundation of Central Ohio and Church of Scientology of Central Ohio.

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

We’re still working to get more people into these Meetups, but our goal is to give PlayYourCourt members a few social tennis outings each week in addition to your practice sessions and Challenge League matches. These Meetups are co-ed, super laid back, and all skill levels are welcome. Post your skill level and a suggested court in the comments section so we can round up as many players as we can for some tennis fun! Also, if you’re looking to meet new practice partners or play some matches and you aren’t already in the PlayYourCourt Community, you can go here to see what we’re all about and sign up: https://www.playyourcourt.com/tennis-community/columbus-oh/meetup/ If you love tennis, we’d love to have you! Be sure and watch the quick video that explains how everything works. Happy hitting! - Scott

Join us as we get together to see Paul Rudd in the latest comedy-drama-musical from John Carney, POWER BALLAD! The film follows a washed-up wedding singer, a fading boy band singer and a stolen hit song. Here’s a description, trailer and plan for this event: DESCRIPTION: Rick, a washed-up wedding singer, and Danny, a fading boy band star, bond over music and a late-night jam session. When Danny turns Rick's song into a hit, Rick sets out to reclaim the recognition he believes he deserves. Power Ballad is written/directed by John Carney, the master of the modern musical and creative mind behind Once, Begin Again and Sing Street! It stars Paul Rudd, Nick Jonas, Peter McDonald, Marcella Plunkett, Havana Rose Liu and Jack Reynor. BUZZ & ACCLAIM: The film premiered to rave reviews at this year’s Dublin International Film Festival where critics call it “a sure-fired crowd-pleaser” that “just might be the feel-good hit of the year!” Others say, “Paul Rudd delivers a career-best performance in this charmer” that’s both “hilarious and deeply moving." The film continues John Carney’s “long run of success with yet another charmer” and “a sharp, hopeful crowd-pleaser that strikes the right notes!” SUMMER OF ICE CREAM, VOL 2: SHAKE NO. 8! Ranked the #1 Ice Cream Shop in Columbus, this is a perfect early stop on our Summer of Ice Cream! Their menu uses made-from-scratch recipes in an array of traditional, specialty and vegan shakes, hot cocoa, crepes, waffle sticks, specialty coffee & espresso, and more! Their specialty shakes are as delicious as they are over-the-top and they offer an extensive vegan menu! You can check out their full menu here: [https://www.shakeno8.com/menu.php](https://www.shakeno8.com/menu.php) PLAN: Please purchase your ticket for the 6:45pm showing and we’ll meet in the upstairs lobby between 6:25 and 6:35pm! Advance ticket purchase is advised for this opening night showing! Once you have yours, please list your seat number in the Comments section of this event. We'll head to nearby Shake No. 8 immediately following the show! Should be a fun one, Dan