Pair Programming

Ponent: Alberto Larraz, cofundador d'IsardVDI IsardVDI va néixer fa més de 14 anys com a resposta a una necessitat molt concreta: cobrir el buit que hi havia a l'ecosistema del programari lliure a l'hora d'oferir una alternativa real a solucions propietàries com Citrix o VMware Horizon en entorns educatius que no es podien permetre el cost d'aquestes solucions. El que va començar com un projecte per desplegar escriptoris virtuals ha anat creixent i transformant-se al ritme del feedback de la seva comunitat d'usuaris, incorporant funcionalitats que avui el converteixen en una eina versàtil: muntatge d'escenaris de ciberseguretat, democratització de l'accés a escriptoris amb capacitats de GPU, integració de dispositius remots i locals o la gestió avançada d'usuaris i plantilles. En aquesta xerrada explicarem com va ser aquest recorregut i ens aturarem especialment en un dels girs més interessants del projecte: la gestió de GPUs. El que originalment es va desenvolupar per donar suport a escriptoris amb acceleració gràfica i 3D s'ha convertit ara en la base sobre la qual desplegem instàncies per executar inferències locals amb models d'IA. Compartirem l'arquitectura, les decisions tècniques preses pel camí i els reptes d'aprofitar infraestructura pensada per a VDI en càrregues de treball d'IA. Mostrarem com IsardVDI t'ajuda a treure profit a la teva infraestructura per generar imatges, executar xats LLM i fer servir assistents de codi sobre models d'IA locals i sobirans. 📅 **Data:** 28 d'abril ⏰ **Hora d'inici de la xerrada:** 19:00 h 📍 **Ubicació:** [Akasha Hub](https://maps.app.goo.gl/CZE8q8uaag8UgnRCA) \- Carrer de la Verneda\, 19\, Nau 1 · Barcelona

**LIMINAL — Conceptual Self\-Portrait Exploration \| Exposición Fotográfica** *Un viaje visual a través del autorretrato conceptual donde identidad, emoción y transformación se encuentran.* La fotógrafa **Neus Xlv** presenta su primer conjunto de proyectos de autor en una exploración visual del autorretrato como lenguaje artístico. A través de diferentes personajes y transformaciones, la artista construye una narrativa íntima donde identidad, emoción y representación se entrelazan. Cada imagen funciona como un acto dentro de un viaje interior que invita al espectador a adentrarse en un universo personal y simbólico. Especializada en fotografía y dirección creativa, Neus ha trabajado durante los últimos años en diversos proyectos de **moda editorial, e-commerce y producciones audiovisuales**. En esta exposición presenta por primera vez una serie de trabajos personales en los que explora las posibilidades del autorretrato como herramienta de expresión artística. **LIMINAL** propone un recorrido visual por distintos estados y personajes que habitan ese espacio intermedio entre la identidad y la ficción. **El evento incluye** • Exposición del proyecto *LIMINAL* • Encuentro con la artista • Conversación sobre el proceso creativo • Performance artística • Catering para compartir la experiencia ENTRADAS : https://www.eventbrite.es/e/1985188677775?aff=oddtdtcreator En puerta: 4,5€

**Hello, fellow DevOps enthusiasts 🤓** On **April 28th**, we'll meet again for a couple of insightful talks, hosted by **[ERNI](https://www.betterask.erni/es-es/)**! 📍**Location**: El Triangle\, Pl\. de Catalunya\, 1\-4\, 3º planta\, Barcelona \| [https://maps.app.goo.gl/o6PfJFXRxhYPWSwr7](https://maps.app.goo.gl/o6PfJFXRxhYPWSwr7) \-\-\-\-\-\- 📅 **Agenda** * **18:30 - 18:40** Welcome from the hosts * **18:45 - 19:30** Proxmox HCS (Home Cloud Services) * **19:30 - 20:15** FinOps from Code: Controlling Cloud Costs with Terraform and Infracost * **20:15 - 21:00** Networking & Snacks \-\-\-\-\-\- **🎤 Talks & Speakers** * **Title: "Proxmox HCS (Home Cloud Services)"** * **Speaker**: [Oliana Cintas](https://www.linkedin.com/in/oliana-cintas-grau-7a393a160/) - *Senior IT consultant at [ERNI](https://www.betterask.erni/es-es/).* * **Duration**: 30-45 mins * **Abstract**: In this session, Oliana will demonstrate how to use the open-source platform Proxmox to build a personal data center or "HomeLab" for less than 250€. We will walk through a real-world scenario: deploying a frontend web app using a fully automated CI/CD pipeline. You’ll learn how to integrate GitLab, LXC containers, and Terraform to mirror professional environments right from your living room. Stepping into a specialized, high-stakes role can be intimidating—especially when mistakes are costly. DevOps is the perfect example: the "barrier to entry" often feels like it requires a massive enterprise budget just to practice. But is it possible to master production-grade DevOps without breaking the bank? * **About**: Oliana Cintas is a Maker with over 8 years of experience in the automotive sector. He is the former co-owner of a non-profit maker association and an app startup. *** * **Title: "FinOps from Code: Controlling Cloud Costs with Terraform and Infracost"** * **Speaker**: [Julia Lamenza](https://www.linkedin.com/in/jlamenza/) - *Senior SRE & Cloud Architect - Consultant* * **Duration**: 30-45 mins * **Abstract**: Cloud costs often become visible only after deployment. In fast-moving environments, engineering teams can unintentionally introduce expensive infrastructure changes with every pull request. This talk explores how to shift left cost awareness by embedding FinOps directly into the development workflow. Using Terraform and Infracost, we can bring real-time cost estimation into pull requests, enabling engineers to understand the financial impact of their changes before deployment. * **About**: Site Reliability Engineer with 13+ years of experience building and operating scalable infrastructure across cloud and hybrid environments. Outside of work, she enjoys speaking at tech events, exploring new places, and building connections within the community. \-\-\-\-\-\- 🔑 **Important Access Note** Our host requires the attendees to provide their ID to grant us access to their offices. **Do not forget to fill in the "NIF - NIE - Passport - email" field** when registering!

**[YOU MUST BOOK ON OUR WEBSITE TO CONFIRM YOUR PLACE:](https://booking.myrezapp.com/en/online/booking/step1/7279/96173)** 🎉 BIG SPOTLIGHT: Improv Classes for Pre-Teens is here! 💭 Unleash your imagination with BIG Spotlight! Dive into a world of laughter & creativity with improv classes in English\*, perfect for pre-teens who love to explore, experiment, & express themselves. No experience needed—just a willingness to have fun. 🎭 Improv is all about boosting confidence, working as a team, & discovering the joy of thinking on your feet. Learn stagecraft, comedy, acting techniques, & sketch writing & celebrate your journey with an end of term showcase. 🦁 Secondary perks? You might just find yourself feeling braver, calmer, & bursting with joy. So, are you ready to jump in and give it a go? Because we can’t wait to see the amazing, creative things you’ll come up with! \*kids should feel confident communicating in English 🟣 AGES: 9-13 **STARTS**: Tuesday 9th September **TIMES**: Tuesdays 5:30pm - 7:00pm **DURATION**: Year long **SHOWCASE**: December, March, June **CLASS** **DATES**: 9th September - 16th June, with breaks for public holidays.

**UX Hub** is thrilled to welcome you to an event hosted by [Docplanner](https://www.docplanner.com) at their beautiful office in Poblenou, in the heart of Barcelona's innovation district. **Hope in the Age of AI: How Your Design System Just Might Save You** As AI accelerates the pace of production, the fear of being "out-paced" is real. But designers already hold the key to the future: the Design System. Far from just a library of components, a robust Design System sits at the critical intersection of design and code—the exact language AI speaks. In this talk, we’ll explore why the foundations you’ve already built are the ultimate launchpad for AI-driven scale and speed. Learn how to pivot your design system from a static resource into an automated engine, ensuring that as we scale at the speed of light, Design remains the pilot, not just a passenger. **Speaker** [Nikki Plyem](https://www.linkedin.com/in/nikkiplyem/) is Design Manager of Product Platform at Docplanner. With over 15 years in the design industry, Nikki leads the design in the Product Platform team at Docplanner, where she focuses on building the systems and services that allow design to scale globally. Her career spans award-winning agencies and high-growth Fintech, but her unique approach to design systems is rooted in her earlier life in New York City. Before pivoting to design, Nikki spent years as a professional improviser with a background in Theater and Sociology—disciplines that taught her how to navigate complex human systems and collaborate in real-time. **Hosts** This event is hosted by [Docplanner](https://www.docplanner.com), a global healthcare platform focused on making access to care simpler, from discovery to booking. They design tools for both patients and clinics, shaping how millions of people experience healthcare every day. **Location:** Docplanner, Omron Europe, [Carrer de Josep Pla, 2, Sant Martí, 08019 Barcelona](https://www.google.com/maps/place//data=!4m2!3m1!1s0x12a4a35a284a30e3:0xffdc5d7e01ee12a?sa=X&ved=1t:8290&ictx=111) **To join us, just:** ✅ RSVP here on Meetup ✅ Answer [this form](https://48db4b2d.sibforms.com/serve/MUIFALfB0bn_p1G9zS7yYICl8fr4aT-cjBYl7Ow1DKvi6gv1FzDSE3Dt9fmIH5k78PONlJNEn2S6UnpOuo_VNIeUd69dkI5RJ0kaw7TjtxPjtwYy8KKc80BkMTozTqyRXiKCcXK9G8y-NccOB4S1Ci0SPkuWLJ5BCVWC80yGZ9bhinpCpoBKNV5cyovr3wH4BWM1_lNTf8IsVTvO) **What’s Happening?** * Keynote Talk: Nikki Plyem * Hope in the Age of AI: How Your Design System Just Might Save You * Hosts: Docplanner * Interactive Q&A: Get your questions answered * Community Networking: Connect with fellow designers, AI specialists, and UX thinkers **Details:** **🗓️ Date**: Tuesday, April 28, 2026 **⏰ Time:** 18:30–21:30 📍 **Location:** Omron Europe, [Carrer de Josep Pla, 2, Sant Martí, 08019 Barcelona](https://www.google.com/maps/place//data=!4m2!3m1!1s0x12a4a35a284a30e3:0xffdc5d7e01ee12a?sa=X&ved=1t:8290&ictx=111) **Why You’ll Love It:** A discussion about hope for the future of AI and UX. **Agenda:** **18:30 – Door Opens** **19:00 – Introduction** **19:15–20:00 – Talk & Q&A** **20:00–21:30 – Socialization & Fun!** **Educational partner:** [Interaction Design Foundation](https://www.interaction-design.org/turn-passion-into-paycheck?ep=ux-salon-bcn) [Uxcel](https://uxcel.com/) **P.S.** Please make sure to show up on time. **If we reach full capacity, we'll not be able to let you in**, even if you have a ticket!

This is not a typical ceramics class. This is a small, intimate space designed to help you slow down, disconnect from daily noise and reconnect with yourself through a simple, hands-on experience. In a city that moves fast, this group offers a different kind of plan: creating with your hands, sharing a glass of wine, and enjoying a calm, screen-free moment. All workshops are held in very small groups (max. 4 people) to keep the atmosphere personal and relaxed. No previous experience is needed. What to expect: • A guided ceramics experience focused on the process, not perfection • A cozy and calm environment • Wine or non-alcoholic drinks • Time to disconnect, without pressure or distractions You will also be able to keep your piece after it’s fired, as a reminder of the experience. This group is for you if you’re looking for: • A creative break from routine • A mindful, slow activity • A different way to meet people or spend time alone Spots are always limited to keep the experience intimate.

## 💼 **Coaching de Inglés para Entrevistas de Trabajo 🇬🇧** **Prepárate para tener éxito en tu próxima entrevista — con confianza, claridad e impacto.** *** ¿Estás buscando un mejor trabajo, un puesto internacional o un salto profesional? En un mercado cada vez más competitivo, **tu nivel de inglés puede marcar la diferencia.** *** ### 👩‍🏫 **Sobre mí** Soy profesora de inglés titulada y psicóloga, con más de **20 años de experiencia** ayudando a profesionales a comunicarse con seguridad y a destacar en situaciones clave. *** ## 🎯 **¿Qué conseguirás?** ✔ Hablar con seguridad y naturalidad en entrevistas ✔ Responder a preguntas difíciles con claridad y estructura ✔ Mejorar tu pronunciación y vocabulario profesional ✔ Crear una impresión sólida y memorable ✔ Controlar los nervios y reducir la ansiedad *** ## 🧠 **Un enfoque único** Esto no es solo una clase de inglés. Combino: ✨ Coaching lingüístico avanzado ✨ Técnicas psicológicas para aumentar la confianza ✨ Simulación real de entrevistas adaptadas a tu perfil *** ## 👤 **¿Para quién es?** ✔ Profesionales que buscan oportunidades internacionales ✔ Directivos y managers ✔ Personas que preparan entrevistas importantes ✔ Quienes quieren resultados reales *** ## 📍 **Sesiones privadas (Barcelona / Online)** 🕒 Horarios flexibles 🎯 Coaching 100% personalizado *** ## 📲 **Solicita tu sesión** Envía un WhatsApp con: 👉 Nombre + nivel + “INTERVIEW COACHING” *** 🔥 **Plazas limitadas — solo se aceptan pocos clientes por semana** *** ## 💎 **Invierte en tu futuro. Da lo mejor de ti. Consigue el trabajo.**

Únete a la comunidad de GDG Barcelona y Flutter Barcelona en un encuentro técnico presencial en el campus de 42 Barcelona, donde exploraremos las últimas novedades del ecosistema Flutter y Dart. En esta sesión, Óscar presentará cómo crear tu primer plugin para Dart Analyzer utilizando el nuevo sistema de plugins introducido en las versiones recientes de Dart y Flutter. Aprenderás cómo definir reglas de lint personalizadas para mejorar la calidad del código en tus proyectos, así como a implementar quick-fixes automáticos que faciliten la adopción de buenas prácticas dentro de los equipos de desarrollo. Esta charla está especialmente dirigida a desarrolladores Flutter con conocimientos básicos o intermedios de Dart que deseen profundizar en herramientas avanzadas de productividad y calidad de código. ✨ Qué aprenderás: • Diferencias entre el nuevo sistema de plugins del analyzer y el enfoque anterior • Cómo crear reglas de lint personalizadas según los estándares de tu equipo • Cómo automatizar correcciones mediante quick-fixes • Buenas prácticas para escalar la calidad del código en proyectos Flutter 📍 Evento presencial – Networking con la comunidad incluido. 🎟️ Plazas limitadas con inscripción previa obligatoria. Agenda --- Speaker Óscar Martín Martín - Very Good Ventures (Senior Developer) Hosted By Joan Fuentes, Mobile software engineer Rosemarie Garcia, UX UI Designer Ekaterina Nosova, Product Manager Founder of Relato Network, expat in Barcelona, learning Catala, castellera. GDG Barcelona, Marcia Paola Rodriguez Briceño, Marketing & Tech Consultant Consultora de Marketing Digital y aplicación de herramientas digitales para impulsar marcas. Diseño tu plan de acción con las principales tácticas en marketing y las mejores herramientas digitales para que optimices tu presupuesto e impulses tu negocio. Digital Marketing Consultant and Application of Digital Tools to Boost Brands. I design your action plan with key marketing tactics and the best digital tools to optimize your budget and boost your business. Dani GN, Tech nerd Romina Elena Mendez Escobar, Cloud Soy Cloud & AI Architect con experiencia diseñando soluciones distribuidas en entornos multicloud, edge y on-premise, aplicando prácticas de MLOps, automatización y Generative AI. He liderado proyectos en sectores como salud, genómica, fintech, energía, turismo, automoción, retail, arte, construcción y sector público. Como docente universitaria, dicté materias como Inteligencia Artificial y Computación en la Nube, y actualmente me desempeño como tutora de tesis en temáticas como Big Data, NLP, infraestructura cloud y analítica avanzada, acompañando a estudiantes en el desarrollo de soluciones técnicas conectadas con desafíos reales de la industria. Formo parte de comunidades globales como AWS Community Builders y Google Women Techmakers, desde donde promuevo la divulgación tecnológica con enfoque en diversidad, educación técnica y liderazgo femenino. Además, soy speaker, mentora técnica y creadora de contenido, enfocada en compartir conocimiento aplicado a través de artículos, workshops y soluciones reproducibles sobre arquitectura de datos, herramientas open source, migración, automatización y aplicaciones de IA generativa. Me apasiona combinar innovación tecnológica con impacto social, colaborando en iniciativas que integran datos abiertos, ética en IA y educación accesible. Samar El souki, Product Designer With 6 years of experience in UX design, I craft user-centered solutions by combining research, wireframing, and prototyping to deliver intuitive and impactful digital experiences. Lizzeth Quinteros, Platform Engineering Lead Gabriela Soto, Data Management Specialist Software Engineer with 12+ years of experience in software development, including application life cycles and modern design. Skilled in analyzing workflows, business logic, and leading development teams while emphasizing best practices and communication. Active volunteer in tech communities addressing gender gap in STEAM and promoting social inclusion. --- Partners 42 Barcelona Fundacion Telefónica (https://www.42barcelona.com/) 42 Barcelona es el campus de programación más innovador y gratuito que te abre las puertas al mercado laboral. Con una metodología revolucionaria y una duración media de tres años, está abierto las 24 horas del día, 7 días a la semana para que puedas aprender a tu ritmo. Flutter community --- Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-barcelona-presents-flutter-amp-gdg-barcelona-tech-talk-creando-tu-primer-plugin-de-dart-analyzer/.

We organise a watercolour workshop for beginners; The teacher is an advanced graphic designer and painter Tiana Diakova, whose works you can check on Instagram: @diakova_art. The maximum amount of people is 10 so the teacher will be able to guide every person. The workshop is adapted to a beginner's level (every time people who never painted before are surprised with the result they achieve!) But also the process will be interesting for those who draw or paint already. For architects, designers, and illustrators it's a good way to discover a new technique and material and make new contacts) All materials are included so there is no need to bring anything. The process will take 2-2,5 hours. Important: Your subscription is confirmed after you make a payment following this link: https://mauicowork.com/watercolour-painting-with-tatiana/ Welcome to our evening of creativity in the atmospheric studio with beach vibes:)

Second Meetup in April OMG!!! Let's gooo! We have some amazing speakers, and of course, pizza and drinks will be available after the event. ────────── **18:30: Welcome** Grab a drink and a seat until everybody arrives! **18:50 Intro by Host Neciu Dan** **19:00 Front-end testing at Preply: Shifting left towards component testing with Storybook** Speakers: Lukasz Rados and Dominika Szukala, both Senior Frontend Engineers at Preply Preply invested a lot into E2E testing in the past, but this approach wasn’t scaling well for us. With the advent of the company rebrand and the new engineering excellence culture, Preply needed a new approach to front-end testing. We (Dominika and Lukasz) embarked on a project to apply the new Engineering Excellence principles to front-end testing, providing the tools and fixing the current context to steer the whole company toward component tests. **19:25** **AI vs. App Engineer. Claude vs. Stack Overflow,** **or How an Animation Task Can Change the Perception of Your Work** Speaker: Arthur Repin, App Engineer at Preply I had a task, that initially looked like a routine change. Normally, I would handle it the usual way: check the documentation, browse Stack Overflow, try a few naive solutions, iterate, and get it done. But not this time. This is a story about how a wrong estimate can actually pay off later by saving time on future tasks. It’s a journey through misjudged effort, shifting approaches, unexpected struggles, and the lessons learned along the way. It also includes a deep technical dive into React Native animations, exploring complex animation patterns and why achieving smooth performance, especially on Android, is still a challenge. This talk is for engineers who want a deeper understanding of React Native animations and a reminder of why engineers still matter in the age of AI. **19:50: Drinks and networking!** Do you want to talk at this meetup? Reach out to Dan Neciu [on LinkedIn](https://www.linkedin.com/in/neciudan/) And please help us spread the news and grow the community: **20:55 Meetup finished** **(FOR EARLY ACCESS: WE ALWAYS POST FIRST ON SOCIAL MEDIA)** [Twitter(X)](https://x.com/ReactJsBCN) [BlueSky](https://bsky.app/profile/reactbarcelona.bsky.social) [LinkedIn](https://www.linkedin.com/company/reactjs-barcelona/) [Instagram](https://www.instagram.com/reactjs_barcelona/) ────────── **Sponsors:** Preply We power people’s progress. At Preply, we’re creating life-changing learning experiences by pairing the magic of human tutors with the power of AI. We help learners discover the perfect tutor, craft a personalized learning journey, and stay motivated to keep growing – wherever they are in the world. With a global network of 100,000+ tutors teaching 90+ languages across 180 countries, Preply is shaping the future of learning. Backed by $150M in Series D funding, we’ve reached unicorn status and are scaling fast – all while staying grounded in our mission to make learning more personal, powerful, and human. ────────── **Join the Master Security Course for FREE!** Modules 1 & 2 are live now — **Exploits and XSS** — completely free to access. * Understand how common vulnerabilities actually work * Learn to identify and prevent security flaws in your code * Get practical, real-world examples you can apply immediately * Types of XSS + real case studies of XSS in ReactJS and more This is just the beginning — start building security expertise today. [Join here](https://neciudan.dev/master-security)

**Multicultural Salsa & Bachata in Barcelona presenta** Estimados Amigos Multiculturales, como ustedes lo pidieron tenemos para todos ustedes la fiesta de los viernes tan solicitada, **todos los Viernes** tendremos la presencia de nuestro profesor Cubano Alexander conocido por todos ustedes impartiendo talleres de Salsa y Bachata Sensual, posteriormente baile social Salsa y Bachata 50% (3 bachatas 2 salsas) hasta las 3 am. **Tenemos el siguiente programa**: 21:30 Apertura 21:30: Taller de Salsa 22:30: Taller de Bachata 23:00: Inicio Baile Socia 50% Salsa, 50% Bachata * El nuevo sitio se llama Gaby's Club tienen una hermosa pista de baile, ubicado en el barrio de Gracia. * Puedes venir sol@ siempre encontrarás con quien bailar, pero siempre es mejor con compañía de tu pareja de baile, y amig@s. * **Las clases son gratis pero se ruega su cooperación para colaborar con Gaby's Club, el lugar con los mejores y más variados cocktailes de Gracia en Barcelona.** **Dirección: Gaby's Club: Carrer de Topazi 24, Metro Fontana, Barcelona** Informes al +34633333173, únete a nuestro grupo de Whatsapp para recibir más información de nuestros eventos: https://chat.whatsapp.com/9DYjrIu28yh1em2R8AVcvU, FB: @multisalsabcn , Instagram: https://www.instagram.com/multicultural_salsa_bcn/ **\**///////////ENGLISH DESCRIPTION\\\**** **Multicultural Salsa & Bachata in Barcelona presents:** Dear Multicultural Friends, we have the requested Friday Party for all of you, **Every Friday**, you are more than welcome to the this party as we are having the presence our Cuban Teacher Alexander as he will be instructing Salsa and Bachata Sensual Workshops, later Salsa and Bachata Social Dance Party 50% (3 bachatas 2 salsas) until 3 am. **We have the following program**: 21:30: Opening Doors 21:30: Salsa Workshop 22:30: Bachata Worshop 23:00: Start Dance Partner 50% Salsa, 50% Bachata 03:00 End of the sesion * The new place is called Gaby's Club, they have a beautiful dance floor, located in the Gracia neighborhood. * You can come alone, you will always find someone to dance with, but it is always better with the company of your dance partner, and friends. * Classes are for free but your cooperation is requested to collaborate with Gaby's by ordering a drink, the best place with the cocktails in Barcelona in Gracia **Address**: **Gaby's Club: Carrer de Topazi 24, Metro Fontana, Barcelona** Contact&info at +34633333173, join our WhatsApp group to receive more information about our events: https://chat.whatsapp.com/9DYjrIu28yh1em2R8AVcvU, FB: @multisalsabcn, Instagram: https://www.instagram.com/multicultural_salsa_bcn/

For this month's Meetup, we are going to the beaufitul **Edifici Històric of Universitat de Barcelona**. We will have two talks: one about **Spec Driven Development** and another one about **Arrow and Parquet**. \-\-\- Schedule: * 18:00: Welcome * ️ 18:30: Talks * **&** 19:45: Networking, food and drinks! * 21:00: Bye! \-\-\- * ➡️ **What: Spec Driven Development. Is it a silver bullet?** * **Who**: Sergei Martynov * ⏱ **Duration**: 30 minutes * **Language**: English * **Abstract**: I would like to talk about spec driven development in case of modern development with AI agents. What is it, how to use it and how I use it in my team on real tasks. With a live demo based on speckit. \-\-\-\- * ➡️ **What: Understanding the Anatomy of Arrow and Parquet** * **Who**: Raúl Cumplido * ⏱ **Duration**: 30 minutes * **Language**: English * **Abstract**: Apache Arrow and Apache Parquet are the de-facto standards for in-memory and file formats for columnar data. We use them on our data workflows daily, sometimes even without noticing. This talk will demystify these formats by going over the specifications and showing some real world examples of how the data actually looks on our systems. \-\-\-\- ➡️ Location: Aula IA, Ground Floor, Facultat de Matemàtiques i Informàtica, [Gran Via de les Corts Catalanes 585](https://maps.app.goo.gl/EfFbJhSR5zy6NBSs8) \-\-\-\- ➡️ Only register if you can attend! * There are limited seats, so please be responsible when signing up; we will be checking the attendee list in case full capacity is reached. * If you can't make it, please free up your seat, so someone else can attend. We keep a list with repeated offenders! \-\-\-\- ➡️ More at https://pybcn.org: * We want talk proposals! [Send yours](https://pybcn.org/pybcn_association/propose-a-talk/) * Want to [publish a job offer](https://pybcn.org/job-offers)? * Follow [@PyBCN](https://twitter.com/pybcn), [@PyBCN in BlueSky](https://bsky.app/profile/pybcn.org) for pictures, slides, videos and more

Ever want to try ceramics or build on your skills? Then this would be the perfect opportunity. The main technique used during the session is hand-building giving you the option to make so many different things for yourself, friends or family - bowls, plates, sushi dishes, plants pots and much more. Beginners will be guided through the process of making things using techniques such as slab building, coiling, pinching, texturing, under-glazing and glazing. The more advanced will be free to create and those with experience throwing would be welcome to use my wheel (to be reserved in advance). Those of you who would like to learn about glazing would need to book 2 workshops. The workshops are run in English but I do speak Catalan and Spanish. They also provide a great opportunity for non-native speakers to chat and learn. They last 2.5 hours and basic materials are provided. Your pieces will be fired and ready for pick up around 10 days after. Cost: 37.50€/person. Bizum: 35€ (647911448) Block of 4 workshops 135€

No slides. No speaker. No agenda. Just developers talking shop over a cold one. This is an informal gathering for engineers, founders, and builders who are deep in the agentic coding trenches — using tools like Cursor, Windsurf, Claude Code, OpenCode, or rolling their own agent pipelines. Come swap what's actually working, what blew up in production, and what you're excited about right now. We'll be at Barcelona, and the format is simple: show up, grab a drink, and share what you know. Bring a laptop if you want to show something, but it's not required. WhatsApp Group: https://chat.whatsapp.com/GVS0bHMPIzID3Ch9lt6YsU?mode=gi_t **What we talk about (but not limited to):** *Agentic coding workflows and tooling - Prompt engineering & context engineering in practice *Multi-agent architectures and orchestration - AI-native product building *What's broken in the ecosystem and how you're working around it **Who should come:** Developers, technical founders, and AI engineers who build with (or on top of) LLMs. All levels welcome — senior devs with war stories and curious beginners both make the conversation better. **Format:** Open conversation, round-table style. Everyone teaches, everyone learns.

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/

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**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

Join other experienced and aspiring agile coaches and professionals to: * develop and practice your coaching skills in a peer-to-peer environment * share current successes and challenges in your work environment and get support from each other * learn from each other, build better relationships and experiment with new ideas ***NOTE:*** Pre-registration is required for this event. **Please arrive 10 minutes early** to check in at the security desk.

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/