Learning

Buenas! (English below) Cada día aparecen formas nuevas de aprender español, (y otros idiomas) apps nuevas, métodos de gramática, IA, videos de profes explicando cosas, y están todas genial. Si te ayudan a entender más y a hablar mejor están genial. El plan de este grupo es mejorar tu español con juegos, actividades reales y ejercicios para hablar más. Con la excusa de los juegos y las actividades corregimos la mayoría de errores: Palabras difíciles, confundir pasados, preposiciones, verbos que significan muchas cosas, ser y estar en pasado, frases con dos verbos o mas, subjuntivo, expresiones coloquiales, y también los errores "culturales”: ¿De que forma usamos los españoles el idioma en diferentes situaciones? La gente que participa es (casi siempre) muy simpática, y normalmente deja reviews muy positivas de las clases. Si te cuadra el plan ven a practicar tu español y hablamos de comida, de viajes, de trabajo, de cultura, de Internet, de temas locales, de noticias y de muchas más cosas. Para participar hay una contribución de solo 10€ por persona/ clase de 2 horas (materiales incluidos, bebidas no incluidas) o de 30€ por 4 clases. Vente y hablamos. Rafa. \-\-\-\- Hi! Every day there are new ways to learn Spanish, (or any language) new apps, grammar methods, AI, teachers explaining things on videos, and they are all great. If they help you to understand more and to speak better, they are great. The main plan in this group is to improve your Spanish with games, real activities and exercises to speak more. All the games and activities are a good excuse to correct the most difficult/ frequent mistakes: Difficult words, confusing past tenses, prepositions, verbs that mean many things, ser and estar in the past, sentences with two or more verbs, subjuntive, colloquial expressions, and also “cultural" mistakes: How we, Spanish people, use the language in different situations? People participating are (almost always) very nice, and usually leave very positive reviews of the classes. If the plan fits you, come to practice your Spanish and we'll talk about food, travel, work, culture, Internet, local issues, business, news and many more things. There is a contribution to participate of only €10 per person/2-hour class (materials included, drinks not included) or €30 for 4 classes. Let´s talk. Rafa.

**Free Coding Workshop - In-Person Workshop!** IMPORTANT: For this event, you will need to register on the codebar page: [https://codebar.io/barcelona](https://codebar.io/barcelona) Come and learn or teach with us! This time, [Koerber](https://koerber-supplychain.com/) opens its doors to host the event: We are a non-profit group of students and coaches that love technology and strongly believe that it should be accessible to everyone. For this reason, we run regular free coding meetups for women, members of the LGBTQ community, and other underrepresented groups in tech. Our goal is to enable underrepresented people to learn to program in a safe and collaborative environment and expand their career opportunities. Not sure if this event is for you yet? Join our slack channel where you can get in touch with other students and coaches not only from Barcelona but also from other cities where [codebar.io](http://codebar.io/) has events: Join our Slack channel at: [https://slack.codebar.io](https://slack.codebar.io/). Help us spread the word by sharing it with your network :)

Want to speak better in public, in English, in meetings, presentations, or just in everyday life? Prestigious Speakers is a Toastmasters club in Barcelona for locals, expats, professionals and students who want to communicate with more confidence and clarity. Sessions are in English, structured, and genuinely useful. **What to expect at a meeting:** * Prepared speeches on topics members choose * Table Topics — spontaneous 1–2 minute responses (great for thinking on your feet) * Honest, constructive feedback after every speech * Friendly people who are working on the same thing you are The whole thing runs about 90 minutes. First visit is always free. 📍 GLOP CLUB · C/ de Fontcuberta 23, 2nd floor · Sarrià, Barcelona 🗓 1st and 3rd Tuesday of the month · 19:45 🎤 Sessions in English · All levels welcome · No experience needed *Prestigious Speakers is part of* [Toastmasters International](https://www.toastmasters.org/)

New Meetup is here! Let's gooo! We have some amazing speakers, and pizza and beer will be available after the event. ────────── **18:00: Welcome** Grab a beer, a snack, and a seat until everybody arrives! **18:30 Intro by Host Neciu Dan** **18:45 The Package Was Fine Yesterday: Why Your Dependencies Are a Security Risk - and What to Do About It** Speaker: [Vitaly Baev](https://www.linkedin.com/in/vitaly-baev/), Senior Frontend Engineer @ Revolut Every JS project relies heavily on third-party code. Some of it runs during install, some in CI, some inside the editor, and some with access to real credentials. This talk explains how recent supply-chain attacks abused that trust and what developers can do to reduce risk without stopping delivery. **19:20 Under the hood: How V8 powers your JS apps (and why you should care)** Speaker: [Gwyneth Rose](https://www.linkedin.com/in/gwyneth-rose/), Senior Engineer at Lodgify You've transpiled your JavaScript, minified it, chunked it, and sent it to your CDN. But what happens when the code actually hits the browser? In this talk, we'll walk through the workings of V8, the JavaScript engine that powers Chromium-based browsers and Node.js. We'll focus on its JIT (just-in-time) compiler, how it learns about your code at runtime, and how it optimizes for performance as you use a web app. We'll also go over concrete techniques to make the JIT compiler's job easier, helping you stay in V8's fastest execution path. **19:50: Drinks and networking!** **20:45 Meetup finished** Would you like to talk at the next 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: **(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:** **Lodgify** Lodgify is a constantly growing tech start-up, focused on building vacation rental software that enables vacation rental owners to independently manage and market their business online. We do so by providing them with easy-to-build websites, including a booking and reservation system, various synchronisation options, and payment collection options. We are +350 Lodgifiers strong, and you can find us working in Barcelona and all around the world! We are working in a hybrid mode and provide our team members with an option to work from home and spend additional time with their family, friends and pets. With more than 60 nationalities, we celebrate diversity daily! With 43% of female and 57% of male employees we are striving to establish a gender balance. Actions are continuously taken to include more women in our Tech teams. ────────── **Join the 30-Day React Challenge for FREE!** \- Master core hooks like \`useState\`\, \`useEffect\`\, and \`useReducer\` \- Unlock advanced hooks like \`useTransition\` and \`useLayoutEffect\` \- Learn powerful patterns like Compound Components to build flexible UIs \- Tackle tricky subjects like refs\, context\, and state management \- Get a peek into the future of React with experimental features \- Receive practical\, real\-world examples you can use immediately **[Join here](https://neciudan.dev/react-subscribe)** ────────── **Join the waitlist for a FREE Course: Master Frontend Security** Join the exclusive waitlist for premium early access to the most comprehensive FREE frontend security course. Be among the first to master XSS, CSRF, exploits, and critical vulnerabilities across React, Vue, Angular, and Vanilla JS. **[Join here](https://neciudan.dev/master-security)**

[Join our new Whatsapp Group for the latest updates!](https://chat.whatsapp.com/Lq5J5hlGuH19dKvgDnjv6Z) *There is a captcha to prevent bots from joining.* **Practical information** The class will be given if a minimum of 3 couples is reached * The class is **completely free** * The class is taught **in English** * Please RSVP so we can keep the group balanced * Doors open at 18:00. * Doors close at 18:15, **be punctual.** This **free beginner salsa class** is perfect if you want to learn **Salsa LA style & Cuban**, try dancing for the first time, and meet new people in a relaxed and friendly setting. Whether you’ve just moved to the city, are looking to make new friends, or simply want to start dancing, this class is designed to be easy, social, and pressure-free. *No previous dance experience needed.* ***It is mandatory to fill out your information about roles (leader/follower), so that we know the numbers of participants for each role.*** **What you will learn** * What makes salsa special and how to dance to the music * Basic salsa steps * How leading and following works * Cross body lead and basic turns The focus is on learning the fundamentals while enjoying the social side of dancing. **Who this class is for** * Absolute beginners * People new in town * Anyone curious about salsa * Anyone looking to meet people through dance You can come **alone or with a partner**. We rotate partners when exercises allow it, so everyone gets a chance to practice and connect. ***FAQ*** ***Important note about class balance*** This salsa class is free, which means we cannot control or guarantee the balance between leaders and followers in advance. We also cannot predict exactly who will show up on the day. For that reason, **admission to the class will be** **based on arrival time**. *Once the class reaches maximum capacity, with a balanced number of participants, we may not be able to let more people join.* We understand this can sometimes be frustrating, but this is the fairest way for us to keep the class balanced, organized, and enjoyable for everyone. Please arrive on time to secure your spot. ***I am in the waiting list. Should I still come to the class?*** We try to keep the classes as balanced as possible, so if we notice we are getting too many leaders/followers we move people around to waitlist. Sadly not everyone who signed up attends the class, so you can always still show up and see if there is a shortage of leaders/followers. ***Want to increase your odds to get a spot for the class?*** Then we highly suggest to come with a partner (leader+follower), as we always give them priority. ***Why am I in the waiting list I was earlier/first?*** There is two reasons, either you have attended the class before or, more likely, you didn't show up to a class you signed up for before. Our classes are free, we do this as volunteers and because we love to introduce people to dancing. ***When you take a spot and don't cancel your attendance in a timely manner or at all it means you took a spot that someone else would have gladly taken, so we kindly ask you to change your RSVP accordingly.***

When I moved to Barcelona, I worked long hours and somehow still couldn't find people to actually practice Spanish with. ​I tried courses. I tried Duolingo and Babbel. They all felt the same: awkward exercises about topics I didn't care about, completely disconnected from my real life. ​So I figured out my own method. It worked. I learned Spanish in 4 months, and I'm now accelerating my French, not in a classroom but by integrating the language into my daily life. ​That's exactly what I'm sharing in this free 1-hour session. ​**What you'll walk away with:** * ​Why traditional methods get you stuck at the intermediate level * ​The one thing that actually moves the needle (it's not more tutoring) * ​Daily practices you can start tomorrow - built around your life, not a textbook ​**Who's this for:** * ​You've been learning a language but got stuck somewhere between A2 and B2 * ​You want to actually use the language, not spend years chasing perfection * ​You're open to rethinking how you learn ​**Logistics:** We'll meet at Sandwichez to have a Coffee all together and talk about our language experience.

Studying rook endgames for beginners and above

Come and discover our Toastmasters club in Barcelona --- **NEW LOCATION** Carrer de Sardenya, 29 08005 ✨ Practice Public Speaking with us! ✨ 🗣 Are you afraid of speaking in public? 🗣 Do you feel nervous when giving a presentation in front of your boss, professor or colleagues? 🗣 Do you want to express your ideas with more confidence? 👩‍💻 Join us at 22@ Barcelona Toastmasters Club. We meet every other Thursday in person. 😄 22@ Barcelona Toastmasters provides you with a friendly and mutually supportive learning environment to develop your public speaking and leadership skills and invites you to a night full of prepared speeches, fun improvisations. 😉 The meeting includes 3 prepared speeches and 2-6 improvised speeches. We learn through constructive feedback and mentorship. 🎤 All the roles in the event will be taken by our existing members who have signed up to Toastmasters. Guests will have the opportunity to take part in our table topics section which comprises short impromptu speeches. Guests from Meetup do not have to prepare speeches. 🎤 We are looking for new members to join our club. If you would like to become an official member, please email 22attoastmasters@gmail.com The event is held in English. AGENDA: 18:45 Welcome 19:00 Toastmasters meeting 20:30 Event closing Our event starts at 19h sharp so PLEASE BE PUNCTUAL. You must arrive before 18:55. After this time, you will not be allowed to access the event. Hope to see you there!! This is a free event. By attending this event you consent to being photographed for our club's promotional purposes for use on social media and meetup.

**Scientific Paper Reading Club: Beyond Transformers & Multimodal Frontiers** This is part of the scientific paper reading club. This Saturday, we are expanding our horizons beyond standard LLMs! Following our recent discussions, we will be diving into points 3 and 5 from our reading list presentation: **Alternative architectures (SSM/RNN)** and **Multimodal foundation models**. To make it even more exciting, we will be connecting these topics to some of the freshest breakthroughs presented at the recent ICLR conference ([https://iclr.cc/](https://www.google.com/url?sa=E&q=https%3A%2F%2Ficlr.cc%2F)). **What to expect:** Our presenter, Maxim Musin, will guide us through these two major frontiers in modern AI: 1. **Alternative Architectures (SSM/RNN):** Transformers are incredibly powerful, but their computational costs remain a massive bottleneck for long contexts. We will discuss why State Space Models (SSMs) like Mamba are emerging as the next big leap. We will look at fresh ICLR[[1](https://www.google.com/url?sa=E&q=https%3A%2F%2Fvertexaisearch.cloud.google.com%2Fgrounding-api-redirect%2FAUZIYQGC4niR9aCGjHBT9LMF4wz46OkiGKU9B7nghuo3OzbRQCWNy4fGizlUydBsvuhZgYay8Y31rCTrfquWnuEHjAibPui0IrBi71JMXQG59U0rk5DKa-hzJg%3D%3D)] insights, such as "Mamba-3: Improved Sequence Modeling using State Space Principles" [https://arxiv.org/abs/2603.15569](https://www.google.com/url?sa=E&q=https%3A%2F%2Farxiv.org%2Fabs%2F2603.15569) and "MambaSL: Exploring Single-Layer Mamba for Time Series Classification" [https://arxiv.org/abs/2604.15174](https://www.google.com/url?sa=E&q=https%3A%2F%2Farxiv.org%2Fabs%2F2604.15174) 2. **Multimodal Foundation Models:** We will explore how AI is learning to "think" natively across different continuous spaces and complex interactions. We will touch on standout ICLR papers like "Massively Multimodal Foundation Models: A Framework for Capturing Interactions with Specialized Mixture-of-Experts" [https://arxiv.org/abs/2509.25678](https://www.google.com/url?sa=E&q=https%3A%2F%2Farxiv.org%2Fabs%2F2509.25678) and "Theory of Space: Can Foundation Models Construct Spatial Beliefs through Active Exploration?" [https://arxiv.org/abs/2602.07055](https://www.google.com/url?sa=E&q=https%3A%2F%2Farxiv.org%2Fabs%2F2602.07055) You don't need a heavy math background to join—Maxim will break down the intuition behind these complex architectures so that the core concepts are easy to follow for everyone. **Meeting Details:** 🗣 **Presenter:** Maxim Musin 💬 **Language of the meeting:** English 🎟 **Entrance donation:** 10 eur 📍 **Location:** Maui coworking (Note: For some reason, Meetup maps sometimes wrongly point to other addresses. Here is the exact address: [https://maps.app.goo.gl/fjx9t4zG8GnEmXLr9?g_st=ac](https://www.google.com/url?sa=E&q=https%3A%2F%2Fmaps.app.goo.gl%2Ffjx9t4zG8GnEmXLr9%3Fg_st%3Dac) ) Looking forward to a great discussion this Saturday! Aparently there is no way of fixing meetup's markdown mess, sorry for this guys, just use your abstract imagination and experience with latech to read anouncement, this markdown render problem seem so be some kind of bug, i cleaned it in the redactor but with no effect, probably copying and pasting it clean into editor will solve it, but generating clean landing page with similar capabilities in claude code would also solve it in a way, so i didn't bother, see you at saturday

**Whats App Group** [https://chat.whatsapp.com/IrcxSnwUDuMEqmzJ4yr5pn](https://chat.whatsapp.com/IrcxSnwUDuMEqmzJ4yr5pn) **New Season Flash Sale 10 Spots Open:** * **Once the host is confirmed, we will notify you of the event start date** via email. * **The limited pass remains discounted and refundable any time** until the specific date is finalized * You’ll receive the QR code and details via email. **Detail** * Welcome to beach volleyball Learn and Play Beginners Event. We have volleyball events in multiple cities. Small group 20 spots each time. All the equipment is prepared. This event is for come to meet new friends, improve your Volleyball skill and have fun. * We will **learn basic skills** **and practice drills** with our Host in the first hour. * Then we’ll **play on the court** in the second hour. **Book Early Bird Pass or Apply Host** [https://www.extremelyshy.com/barcelona](https://www.extremelyshy.com/barcelona) **One Time Drop In $10 Early Bird/$13.99 Regular** * Every Sunday (No Events in Holiday or Raining)**Once the host is confirmed, we will notify you of the event start date via email.** * Time: 11AM-1PM * Location: Barceloneta Beach * Openings: 20 spots **12 Weeks Pass Early Bird $49, Regular $79** * Every Sunday (No Events in Holiday or Raining) **Once the host is confirmed, we will notify you of the event start date via email.** * Time: 11AM-1PM * Location: Barceloneta Beach * Openings: 20 spots **Host: Reply the email after apply to confirm. Paid by Extremely Shy for your Effort.** * We prepare equipment for you to setup. Scan QR code to check them in. * Share your experience to our people in the first hour. * Have fun with them in the second hour. **Liability** * The organizer and any/all assistant organizers and other attendees are in no way responsible and liable for your personal safety and health state, before, during, and at any time after this event. * You acknowledge you are solely responsible for your health, safety, and well-being before, during, and at any time after the event as stated previously. * All attendees shall forever hold harmless the organizers and other attendees and unconditionally waive any liabilities resulting from attending and/or participating in this event.

dirigido a personas que buscan (re) conectar con su Cuerpo Creativo y la energía sutil. Mediante el Enraizamiento, la activación de motores y trabajos de Centro nos acercamos de manera suave a la Expresión Corporal que es una herramienta muy necesaria para poder escuchar el.cuerpo y dialogar hacia dentro, tanto como para ejercer presencia absoluta donde nos encontremos y podamos dialogar con nuestro entorno siendo capaces de generar una respuesta más que solo reaccionar.

Movement Flow: Hemos pasado una década creando un sistema educativo inclusivo que promueve el autodescubrimiento y el crecimiento, dando la bienvenida a todos sin importar la edad o las habilidades. Nuestro sistema no se trata solo de acción física, sino de un viaje transformador, probado por miles de practicantes. Nuestra comunidad de apoyo fomenta el desarrollo en todos los niveles de habilidad. Aquí mejorarás tu propiocepción, dominarás una conexión fluida con el suelo, aprenderás secuencias de movimiento desde las más simples hasta las más complejas, ¡y quizás incluso hagas el pino! Entonces, ¿por qué esperar? Enciende tu camino hacia la fuerza, la flexibilidad y el movimiento ahora. Exploremos juntos este hermoso mundo del movimiento.

**Practical Curiosity: Learning from Everyday Data** How do we actually get better at utilizing our day-to-day data? Fancy dashboards and complex models might look nice and draw attention, but that’s not where most of us spend our time. In fact those shiny outputs frequently sit unused, while the real insights are drawn from the analyst’s daily practice. Sometimes it’s as simple and as powerful as noticing that a segment is shrinking, a channel is underused, or certain links keep getting all the clicks. There’s many different places that the spark of insight can come from, but you have to keep your head in the data and know where to look. In this session, we’ll explore real-world examples of how segmentation, testing, and click behavior can uncover practical digital marketing opportunities. You’ll leave with inspiration for your own use cases, along with a few simple ways to ask better questions, spot meaningful patterns, and make smarter decisions without overcomplicating it. **About Our Speaker:** [Elaine Armbruster](https://www.linkedin.com/in/elainearmbruster/) is a Director of Digital Experience at the [American Diabetes Association](https://diabetes.org/), where she focuses on using data and insights to create smarter, more effective digital experiences. A lifelong Columbus resident, she has built her career in email marketing and the broader digital user journey, and is finding she most enjoys working in the messy middle where systems, data, and big ideas don’t quite line up yet. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

Most people use LLMs by feel: ask a question, read the answer, decide whether it “seems good,” and move on. That works for casual use. It does not work when you are building software, automating workflows, writing important documents, or relying on AI for anything that needs to be repeatable. In this talk, we’ll look at how to improve and evaluate the inputs and outputs of LLMs using practical measurement techniques. We’ll cover how prompt changes affect results, how to compare outputs, how to build simple evaluation sets, and how math-based methods like similarity scoring can help you move beyond guesswork. This will be beginner-friendly, so even if you don't know anything about AI, you should get something out of it. However, this will be a little more technical than our intro talks. You do not need to be an AI researcher, but programmers and technically curious attendees will get a lot out of it. We’ll cover: * Why “it looks good” is not enough * How to improve prompts by changing the input, context, and constraints * How to compare LLM outputs more systematically * Basic evaluation techniques for accuracy, consistency, and usefulness * How embeddings, cosine similarity, and scoring can help evaluate results * Where automated evaluation works — and where humans still need to stay in the loop By the end, you’ll have a practical mental model for treating LLMs less like magic and more like systems you can test, measure, and improve. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.

If you enjoy knitting, crocheting, working with yarn, this is the group for you. Meet new friends, bring your projects, learn from others.
We normally meet a few times a month during the week from 6-8pm. We will occasionally meet on weekends during daytime hours.

We have moved to guild.host. Look us up there. https://guild.host/events/buckeye-cocoaheads-rcavwd

You can sleep in on the Sesquicentennial (observed), we’re shifting to the following Friday. But join the local UX community for a chat and some biscuits to catch up. If you were in CA for Figma Config, tell us all the lines and you can tell me how I can animate an SVG without coding it by hand, and why I’d even want to. Thanks to the team at Nationwide of supporting the group.

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow