Mozilla

June Meetup is here! Let's gooo! Do you want to learn more about Micro Frontends? Then we have some experts in the house! Check it out 👇 ────────── **18:30: Welcome** Grab a seat until everybody arrives! **18:45 Intro by Hosts Neciu Dan & Erik Grijzen** **19:00 8 Years of Micro Frontends @ New Relic: Lessons Learned** Speaker: **Erik Grijzen, Principal Software Engineer** New Relic started implementing a Micro Frontend architecture about eight years ago, before the concept of Micro Frontends even existed as an architectural pattern. Over the years, we’ve learned hard-won lessons on designing, scaling, and maintaining Micro Frontends. We will go over some of the most important architectural decisions that need to be considered and see how they have affected us. We will also cover some of the most common anti-patterns and discuss practical strategies to avoid them, illustrated with real-world examples. **19:30** **Developing a micro-frontends open source framework** Speaker: **Natalia Venditto, Engineer and hands-on architect at Adobe** In this talk, I will talk about the technical challenges of building and maintaining an open source framework. What features we have prioritized while using it and solving real life problems, how we have monkey patched the browser to work on top of the web platform and make it agnostic and how we are working to port some of those features as standards **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:** **New Relic** New Relic arms businesses with the trust and confidence required to thrive in the AI era. The New Relic Intelligent Observability Platform is the only open, AI-strengthened platform designed to unify telemetry and business outcomes, bringing intelligence and automated actions to the most complex digital environments. The platform shifts teams from reactive firefighting to intelligent orchestration, leveraging AI-driven automation to optimize technology spend and protect revenue in real-time. That’s why global leaders—Adidas Runtastic, Domino’s, Ryanair, Swiggy, Topgolf, and William Hill—run on New Relic to drive innovation and deliver exceptional customer experiences. ────────── **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)

You’re invited to a **fun and social cooking experience in Barcelona**: we’ll cook a delicious paella together and use it as the perfect excuse to meet new people. We’ll start with a short introduction to the group and the hosts, then walk you step by step through a traditional paella recipe. While everything is cooking, there will be plenty of time to chat, have a drink, and connect with other attendees. We’ll finish by sharing the paella around the table. What to expect: * A relaxed and friendly atmosphere * Step‑by‑step guidance to cook paella together * Time to socialize and make new friends in Barcelona * A shared meal at the end What to bring: * An open, social attitude and willingness to participate Please let us know if you have any food allergies or dietary restrictions when you RSVP The main language will be English, but we’re happy to switch to Spanish when needed.

Xerrem en petits grups sobre temes del nostre dia a dia o d'interes comú mentre prenem un cafe o esmorçem. Las consumisions no tenen res a veure amb Vennmón. si voleu més informació envieu un whatsapp al 630991609 (Núria)

Introducing our exclusive class, a special invention of our founder, Julia. This isn't your typical Pilates routine; it's a "killing you softly" mix of dynamic movements that sculpt your body from head to toe, has your sweat dripping while targeting your inner strength from the core. Brace yourself for 45 minutes in which you will feel the burn in all the right places—your booty, legs, abs and arms! Wondering how we achieve this magic? Here's the formula: * Upbeat Music: Move in sync with the energizing beats like you're in a club. * No Breaks Series: Say goodbye to tedious pauses, as we keep the momentum going for a workout that never loses steam. * Full-Body Compound Movements: We're talking about powerhouse exercises that engage multiple muscle groups, giving you an all round workout like no other. Level: Intermediate What to bring: Mat, Towel & Water **Location: Until our new studio is ready, the class will be given at Stephy’s (C/Wellington 88).** **Price: single ticket is 10 Euros** If you like it and you want to join us regularly, ask us for our unlimited membership promotions! CONFIRM your attendance via whatsapp to Julia: +34 669760790

¿Quieres aprender a bailar? Realizamos clases regulares desde hace más de 10 años de diferentes modalidades, SALSA, BACHATA, KIZOMBA, SEVILLANAS y más. Tenemos diferentes niveles, inicio, intermedio y avanzado y estamos durante toda la semana en diferentes zonas del Vallés. Existen diferentes opciones de pago, con unos bonos que van desde los 3€ a los 7€ por clase y los puedes gastar en diferentes días y horarios. Para más información nos puedes contactar por privado, teléfono o whatsapp al 636204015 Es necesario avisar antes de asistir por primera vez. (Indicanos que nos has encontrado a través de Meetup)

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.

A Mediterranean evening experience in a private villa above Barcelona. A night designed around open terraces, shared tables and a warm, social atmosphere in Horta. From 20:30 to 1:30, step into a lively yet relaxed setting where people come together to enjoy the night, meet others and disconnect above the city. We host intimate groups of around 30 people to keep things easygoing and personal, creating a natural space to connect — whether you come with friends or on your own. A Mediterranean-style buffet will be available during the evening, with a variety of fresh dishes, along with wine, beer and drinks throughout the night. Music will accompany the atmosphere without taking over it. Not a crowded party. A private gathering with limited spots to preserve the experience. **Ideal for:** – Expats and internationals in Barcelona – People new to the city – Those looking to meet others in a natural way – Anyone after a different kind of Saturday night 📍 Private villa in Barcelona Exact address shared after confirmation Reservation required to attend. Food, music and open-air night with pool and skyline views. Limited access to preserve the atmosphere. Location and price: +34 600 41 67 80 **[Reserve your spot](https://tally.so/r/BzbAB7)** You can get a feel of the atmosphere on our [Instagram](https://www.instagram.com/thewhitevilla._/).

Aleix Pol, president of [KDE e.V.](https://ev.kde.org/) will talk about [BuildStream](https://buildstream.build/), a mechanism to build operating systems and all sorts of packages like that. We will discuss why it's interesting, what can it do and why have I been spending time seeing to [KDE Linux](https://linux.kde.org/) using it as it's build tool. After this presentation you'll also know how to build your operating system and hopefully be able to contribute to a bunch more! 📅 **Date:** 11 June ⏰ **Start time:** 19:30 h 📍 **Location:** [Akasha Hub](https://maps.app.goo.gl/CZE8q8uaag8UgnRCA) \- Carrer de la Verneda\, 19\, Nau 1 · Barcelona

A relaxed morning walk through the hills of Horta, followed by a vermouth at The White Villa overlooking Barcelona. The experience begins with a **guided hike across the miradores of Horta**, offering open views over the city and a natural escape just a few minutes from Barcelona. A gentle route designed to enjoy the landscape, move the body and connect with others in a calm and social atmosphere. The walk includes around **150 meters of elevation** and lasts approximately **1–2 hours**, at an easy and accessible pace. After the hike, we arrive at **The White Villa**, where the experience continues with a **vermouth on the terrace**, surrounded by plants and views over Barcelona and Tibidabo. We’ll serve a **traditional vermouth**, accompanied by **olives and crisps (patatas)** — a simple and classic way to enjoy the moment together. A time to relax, share and enjoy the late morning above the city. A moment to relax, share and enjoy the late morning together. This is not a sports activity. It’s a **social and easygoing experience**, designed to combine nature, conversation and a unique setting above the city. **Ideal for:** – Expats and internationals – Newcomers to Barcelona – People who enjoy nature and light activity – Anyone looking for a different Saturday morning plan 📍 Meeting point: Mirador d'Horta End point: The White Villa Small group (around 20 people) to keep a balanced and friendly atmosphere — easy to meet people, even if you come on your own. **The experience includes:** – Guided hike through Horta viewpoints – 1 vermouth at The White Villa – Access to the terraces and views Reservation required to secure your place. Nature, movement and conversation above Barcelona. Limited access to preserve the atmosphere. Location and price: +34 600 41 67 80 **[Reserve your spot](https://tally.so/r/9qvk6K)**

**(CASTELLANO a continuación 🌲 ENGLISH below)** Amb ganes d'un dia d'autèntica muntanya? Doncs no et pots perdre **el clàssic "Pedraforca 360º" enmig del Parc Natural del Cadí-Moixeró**. No t'espantis... avui no pujarem aquest majestuós cim... "simplement" volem fer la **volta completa al Pedraforca** entre frondosos boscos per antics camins històrics com el Camí dels Bons Homes... i per poder admirar la que molts consideren la muntanya més singular i impressionant de Catalunya... des de tots els angles! **Una ruta increïble de 17km i 700m de desnivell que ens farà connectar amb uns boscos, un aire, unes pedres, uns prats d'alta muntanya en plena explosió primaveral i unes vistes... que són un regal per a l'ànima! ;-)** ℹ️ **Detalls pràctics:** * **Preu:** 25 € excursió + 15€ cotxe (es paga directament al conductor/a) = **Total: 40€** * **Inclou:** guiatge per guia titulat, assegurança d'accidents + responsabilitat civil. * **Targeta Nature Connect:** cada 10 rutes... **1 gratuïta!** 🥪 Què cal portar? * Picnic per dinar en ruta * Mínim 1,5 L d’aigua * Calçat de muntanya i roba en capes (adaptable al temps) * Bastons opcionals ❗️ Política de cancel·lació: * ✅ Fins a **48 h abans**: devolució del pagament (amb descompte de 5 € per gestió) o **canvi per una altra ruta** dins dels pròxims 6 mesos. * ❌ Passades les 48 h: **no es faran devolucions ni canvis**. Gràcies per la teva comprensió! 📲 Segueix-nos i estigues al dia! * 📷 Al nostre Insta 👉 [Instagram](https://www.instagram.com/natureconnectbarcelona) * 😎 a Can Facebook 👉 [Facebook](https://www.facebook.com/natureconnecthikes) * 🥰 **i uneix-te al 👉 [Grup de WhatsApp](https://chat.whatsapp.com/H8fQ4srpGthI7j1OWyuBYQ) 👈** per estar informat de properes sortides! Per a + INFO, no dubtis a contactar-me (preferiblement via **WhatsApp**) ☎️ **609 309 797 (Jordi)** \-\-\-\-\-\-\- **⛰️ CASTELLANO 📷** Con ganas de un día de auténtica montaña? Pues no te puedes perder **el clássico "Pedraforca 360º" en medio del Parc Natural del Cadí-Moixeró**. No te asustes... hoy no subiremos a la cima del Pedraforca... una ruta para montañeros muy experimentados... Nosotros hoy "simplemente" queremos darle la **vuelta completa a esta mítica montaña** entre frondosos bosques y espectaculares vistas... **Una ruta increíble de 17km y 700m de desnivel** que nos hará **conectar con unos bosques, un aire, unas piedras, unos prados alpinos en plena explosión primaveral y unas vistas... que son un regalo par el alma! ;-)** **Hoy es el día. No te la pierdas.** ℹ️ **Detalles prácticos:** * **Precio:** 25 € excursión + 15€ coche (se paga directamente al conductor/a) = **Total: 40€** * **Incluye:** guía titulado, seguro de accidentes + responsabilidad civil. * **Tarjeta Nature Connect:** cada 10 rutas… ¡1 gratis! 🥪 **¿Qué hay que llevar?** * Picnic para comer en ruta * Mínimo 1,5 L de agua * Calzado de montaña * Ropa por capas (para adaptarnos al clima) * Bastones (opcionales) ❗️ **Política de cancelación:** * ✅ Hasta 48 h antes: devolución del pago (menos 5 € de gestión) o cambio por otra ruta dentro de los próximos 6 meses. * ❌ Pasadas las 48 h: no se realizan devoluciones ni cambios. ¡Gracias por tu comprensión! 📲 **Síguenos y mantente al día:** * 📷 En Instagram 👉 [Instagram](https://www.instagram.com/natureconnectbarcelona) * 😎 En Facebook 👉 [Facebook](https://www.facebook.com/natureconnecthikes) * 🥰 Y únete al **👉 [Grupo de WhatsApp](https://chat.whatsapp.com/GnAyY0TPC259jA8FC2jIJy) 👈** para estar al día de nuestras próximas salidas **Para + INFO, no dudes en contactarme** (preferiblemente por WhatsApp) ☎️ **609 309 797 (Jordi)** \-\-\-\-\-\-\- 🌱 **ENGLISH** 🐞 Do you feel like doing some real mountain hiking? **Today we want to complete the classic ‘Pedraforca 360’**. Don’t worry! Today we are not going to reach the peak of this majestic mountain we ‘just’ want to **complete the tour** **around the Pedraforca** so we can admire it from all angles! Some say that it is **Catalonia’s most unique and impressive mountain**. As this route is **17km long with a 700m elevation gain**, it is not particularly difficult and what is great is that we can connect with the forests, trees, stones, meadows, and views of this emblematic mountain which are real gifts to the soul. **Today is the day. Don't miss it out!** ℹ️ **Practical info:** * **Price:** €25 for the hike + €15 for car transport (paid directly to the driver) = **Total: €40** * **Includes:** certified guide + accident and liability insurance * **Nature Connect Card:** every 10 hikes… 1 free! 🥪 **What to bring:** * Picnic lunch * At least 1.5 L of water * Mountain/hiking shoes * Layered clothing (weather can change!) * Trekking poles (optional) ❗️ **Cancellation policy:** * ✅ Up to 48 h before: refund (minus €5 admin fee) or a transfer to another hike within the next 6 months. * ❌ Less than 48 h before: no refunds or changes. Thanks for your understanding! 📲 **Stay connected:** * 📷 On Instagram 👉 [Instagram](https://www.instagram.com/natureconnectbarcelona) * 😎 On Facebook 👉 [Facebook](https://www.facebook.com/natureconnecthikes) * 🥰 Join our **👉 [WhatsApp group](https://chat.whatsapp.com/GnAyY0TPC259jA8FC2jIJy) 👈** to stay updated on upcoming outings **For more info, feel free to contact me** (preferably via WhatsApp) ☎️ **+34 609 309 797 (Jordi)**

Nuestra nueva web: [https://www.patreon.com/singlesbarcelona](https://www.patreon.com/singlesbarcelona) **RANGO DE ESTE EVENTO 45-54 AÑOS APRÓX.** **RANGO DE ESTE EVENTO 45-54 AÑOS APRÓX.** **🤩❤️🍹MINI GUATEQUE RETRO DE 1 HORA PARA SOCIALIZAR UN POCO ANTES DE IRNOS AL TARDEO DISCO REMEMBER PORQUE LUEGO EN LA DISCO NO SE PUEDE HABLAR MUCHO CON LA MÚSICA A TODA CASTAÑA Y DANDO SALTOS.** **Precio:** **Inscripción gratis para las chicas.** Chicos consultar. Inscripción y ubicación por **whatsapp 630 467 646** una vez estés apuntado aquí en meetup. **Primero apúntate en meetup luego envía whatsapp. No envíes whatsapp si no apareces en la lista de apuntados del evento meetup.** Gracias. Se habilitará **grupo whatsapp temporal** para el evento.

**Important:** * Please sign up on the following website to complete your sign up: [https://uxdx.com/community/community-barcelona-2026-06-11/](https://uxdx.com/community/community-barcelona-2026-06-11/) An in-person series of meetups focused on helping product & engineering teams in Copenhagen bridge the gap between UX, Product, Design, and Dev, and to build better products faster, together. **Agenda:** **18:30 - 19:00** Opening and registration **19:00 - 19:15** Welcome from the UXDX Ambassadors and Preply **19:15 - 19:45** Talk 1: Oana Stroe, Product Design Lead at Hubtype **19:50 - 20:15** Talk 2: Mert Tas, Principal Product Manager at Vista **20:30 - 21:00** Closing and networking ## **✨ Talks** **Talk by Oana Stroe -** [The Silo is Dead. Long Live the Silo.](https://uxdx.com/session/the-silo-is-dead-long-live-the-silo/) This talk explores how AI is reshaping ownership, craft and collaboration in cross-functional teams, and why the specialists who feel most threatened might actually be the ones who matter most. Expect honest observations and some uncomfortable questions. **Talk by Mert Tas -** [AI, Collaboration, and Hidden Tradeoffs of Product Teams](https://uxdx.com/session/ai-collaboration-and-hidden-tradeoffs-of-product-teams/) Generative AI is changing how product, design, and engineering teams work together, from how ideas are explored to how decisions are discussed and documented. In this session, Mert will share practical experiences from working on complex design and personalization products at Vistaprint: where AI genuinely improves quality, shared context, and speed, and where it risks creating shallow alignment, coordination overhead, or endless artifact generation instead of deeper thinking. The session is intended less as a prescription and more as an honest reflection on the new collaboration tradeoffs many teams are already starting to feel. ## **About UXDX** UXDX helps teams shift from project based delivery to empowered, autonomous product teams. We host global conferences and over 150 free community events each year, bringing together UX, Product, Design and Development practitioners to share how real teams build better products faster.

Topic to be announced. **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

**We are expanding our creative programming opportunities with Queer Quills, a quiet writing and sharing space. Queer Quills features some prompts, supplies and friendly faces to help get some inspiration or feedback for your writing. Hope to see you there!**

We are going to build together with all the CLIs! E will be doing it at Columbus Code and Coffee Agenda --- Hosted By James Power, Organizer Pete Gordon, Organizer Just a Software Guy in the age of the Internet. Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-columbus-presents-ai-improv-lets-build-a-game-together-with-claude-code-codex-and-gemini-and-be-the-judge/.

Join us for Sharp Objects by Gillian Flynn! Fresh from a brief stay at a psych hospital, reporter Camille Preaker faces a troubling assignment: she must return to her tiny hometown to cover the unsolved murder of a preteen girl and the disappearance of another. For years, Camille has hardly spoken to her neurotic, hypochondriac mother or to the half-sister she barely knows: a beautiful thirteen-year-old with an eerie grip on the town. Now, installed in her old bedroom in her family's Victorian mansion, Camille finds herself identifying with the young victims—a bit too strongly. Dogged by her own demons, she must unravel the psychological puzzle of her own past if she wants to get the story-and survive this homecoming.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *Customize the IDE: Building Extensions for Visual Studio Code* Visual Studio Code is one of the most widely used development environments today, and much of its flexibility comes from its extension ecosystem. Extensions allow developers to customize the editor with new features, integrations, and workflow improvements tailored to their needs. In this session, we’ll cover what extensions are and the different types available, including full extensions written in TypeScript or JavaScript, along with lighter-weight extensions such as color themes, language packs, language support, code snippets, and keymaps. We’ll also look at practical reasons a developer might create an extension, from automating repetitive tasks to adding custom tooling. The session includes a hands-on walkthrough of creating a new extension, testing it locally, and understanding the basic project structure. We’ll close with a brief overview of how extensions are packaged and published to the Visual Studio Marketplace and other distribution options. **YouTube Link** TBD

Join the weight loss in Columbus group at the Scioto Audubon Park for an in person meeting. We'll meet to chat casually, talk about goals and enjoy one of Columbus's wonderful parks. We'll meet at one of the outdoor shelters, which is covered in case of rain, is close to some walking trails, and there's also a climbing gym that people can try out (my favorite past time) if people are interested. Let's meet and see where we can take things!

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).