Node.js Native Test Runner: The Latest Features You Need to Know en

Description:

Explore the latest updates in the Node.js native test runner and how it’s transforming testing workflows. This talk highlights new features, practical examples, and real-world scenarios to help developers write faster, cleaner, and more maintainable tests using Node.js’s built-in tools.

Takeaways:
- The latest features and capabilities of the native test runner.
- How it simplifies workflows compared to third-party tools.
- Practical demonstrations of writing efficient tests.
- Learn the newest features of the Node.js native test runner.
- Discover how it compares to other testing tools.
- Write faster, cleaner, and more efficient tests with ease.

Processing Videos in the Web using WebCodecs en es pt

Have you thought about how much you'd save if processing large files, validating data, and more would be done in the frontend instead of in the server?

This talk will show how to use the Web Codecs and Web Streams APIs to process videos, split them into different tracks, and upload them on demand without any backend

This will blow your mind to use processing power for the client and even use their GPU for better results

Takeaways:
- The processing video problem
- Getting to know the Web Codecs API
- Getting to know the Web Streams API
- Seeing in practice from a real-world example

FullStack Monitoring with Open Telemetry: End-to-End Observability for Modern Applications en es

Abstract
In this talk, I’ll show how to instrument applications end-to-end with OpenTelemetry, capturing metrics, traces, and logs across the entire request lifecycle. You’ll learn to pinpoint errors, understand why they happen, and fix them more efficiently, guided by real-world examples and a starter template for quick adoption.

Outline
FullStack observability is crucial for modern apps. We’ll explore how to unify data from the frontend to the database, detect anomalies, and connect logs, traces, and metrics for deeper insights. I’ll demonstrate how to set up OpenTelemetry for JavaScript and Node.js while highlighting best practices for correlating errors and improving reliability.

takeaways:

- Grasp OpenTelemetry basics for distributed systems
- Implement end-to-end monitoring in JavaScript/Node.js
- Create instrumentation points across all layers
- Correlate errors—from crashes to invalid database data—using traces and logs
- Use a starter template to kick off OpenTelemetry adoption

Cut the SaaS: How I Saved Thousands with Kubernetes & Open Source en es pt

In this talk, I’ll show how I slashed costs at https://ew.academy by replacing multiple SaaS services with a self-managed Kubernetes infrastructure built on open-source tools. You’ll see how I evaluated alternatives, deployed them at scale, and overcame daily challenges—alongside real savings data. Attendees will gain strategies to reduce expenses, avoid vendor lock-in, and regain control of their systems.

Takeaways:

- The SaaS Problem: Why ew.academy’s subscriptions were unsustainable
- Open Source Replacements: Key tools for each service
- Kubernetes Deployment: Managing and scaling in-house
- Challenges & Pitfalls: Security, maintenance, hidden costs
- Cost & ROI: Comparing old bills vs. new setup
- Lessons Learned: Key planning and migration tips
- Next Steps: How you can replicate this approach

Monitoreo FullStack con OpenTelemetry: Observabilidad de Extremo a Extremo para Aplicaciones Moderna en es

En esta charla, mostraré cómo instrumentar aplicaciones de extremo a extremo con OpenTelemetry, capturando métricas, trazas y registros a lo largo de todo el ciclo de vida de las solicitudes. Aprenderás a identificar errores, entender por qué ocurren y solucionarlos de manera más eficiente, guiado por ejemplos del mundo real y una plantilla inicial para una adopción rápida.

La observabilidad FullStack es crucial para las aplicaciones modernas. Exploraremos cómo unificar datos desde el frontend hasta la base de datos, detectar anomalías y conectar registros, trazas y métricas para obtener insights más profundos. Demostraré cómo configurar OpenTelemetry para JavaScript y Node.js, destacando las mejores prácticas para correlacionar errores y mejorar la confiabilidad.

Puntos clave:

- Comprender los fundamentos de OpenTelemetry para sistemas distribuidos.
- Implementar monitoreo de extremo a extremo en JavaScript/Node.js.
- Crear puntos de instrumentación en todas las capas.
- Correlacionar errores, desde fallos hasta datos inválidos en la base de datos, utilizando trazas y registros.
- Usar una plantilla inicial para comenzar con la adopción de OpenTelemetry.

Corta el SaaS: Cómo Ahorré Miles con Kubernetes y Open Source en es pt

En esta charla, mostraré cómo reduje costos en https://ew.academy reemplazando múltiples servicios SaaS con una infraestructura autogestionada en Kubernetes basada en herramientas de código abierto. Verás cómo evalué alternativas, las implementé a gran escala y enfrenté los desafíos diarios—junto con datos reales de ahorro. Los asistentes aprenderán estrategias para reducir gastos, evitar el vendor lock-in y recuperar el control de sus sistemas.

Puntos clave:

El Problema del SaaS: Por qué las suscripciones de ew.academy eran insostenibles
Reemplazos Open Source: Herramientas clave para cada servicio
Despliegue en Kubernetes: Gestión y escalado interno
Desafíos y Riesgos: Seguridad, mantenimiento, costos ocultos
Costos y Retorno: Comparación de las facturas antiguas con la nueva configuración
Lecciones Aprendidas: Consejos clave para planificación y migración
Próximos Pasos: Cómo puedes replicar este enfoque

Procesamiento de Videos en la Web con WebCodecs en es pt

¿Has pensado cuánto podrías ahorrar si el procesamiento de archivos grandes, la validación de datos y más se realizaran en el frontend en lugar del servidor?

En esta charla, mostraré cómo usar las APIs Web Codecs y Web Streams para procesar videos, dividirlos en diferentes pistas y subirlos bajo demanda, sin necesidad de un backend.

Esto cambiará tu forma de usar la potencia de procesamiento del cliente, incluso aprovechando su GPU para obtener mejores resultados.

Puntos clave:

- El problema del procesamiento de videos
- Conociendo la API Web Codecs
- Conociendo la API Web Streams
- Viendo en práctica con un ejemplo del mundo real

Processando Vídeos na Web com WebCodecs en es pt

Já pensou o quanto você economizaria se o processamento de grandes arquivos, validação de dados e mais fossem feitos no frontend em vez do servidor?

Nesta palestra, vou mostrar como usar as APIs Web Codecs e Web Streams para processar vídeos, dividi-los em diferentes faixas e carregá-los sob demanda, sem precisar de backend.

Isso vai revolucionar sua forma de utilizar o poder de processamento do cliente, incluindo o uso da GPU para resultados ainda melhores.

Pontos principais:

- O problema do processamento de vídeos
- Conhecendo a API Web Codecs
- Conhecendo a API Web Streams
- Vendo na prática com um exemplo do mundo real

Cortando o SaaS: Como Economizei Milhares com Kubernetes e Open Source en es pt

Nesta palestra, vou mostrar como reduzi custos no https://ew.academy substituindo diversos serviços SaaS por uma infraestrutura autogerenciada em Kubernetes baseada em ferramentas open source. Você verá como avaliei alternativas, as implementei em escala e enfrentei os desafios do dia a dia—com dados reais de economia. Os participantes aprenderão estratégias para reduzir despesas, evitar o lock-in de fornecedores e retomar o controle de seus sistemas.

Pontos principais:

- O Problema do SaaS: Por que as assinaturas do ew.academy eram insustentáveis
- Substituições Open Source: Ferramentas principais para cada serviço
- Implementação em Kubernetes: Gerenciando e escalando internamente
- Desafios e Armadilhas: Segurança, manutenção, custos ocultos
- Custo e Retorno: Comparando as contas antigas com a nova configuração
- Lições Aprendidas: Dicas essenciais para planejamento e migração

The Secret to Processing Terabytes of Data in JavaScript en

In this session, I’ll reveal how to harness Async Generators, Iterators, Web Workers, and Web Streams for efficient data processing. We’ll explore on-demand data handling across diverse JavaScript environments and learn strategies to keep apps responsive during intensive tasks. You’ll also gain insights into JavaScript's internals and discover how to adapt these techniques for real-world data workflows.

Outline

- On-Demand Data Handling: Practical uses of Async Generators and Iterators
- Web Streams: Streamlined data processing for scalable solutions
- Responsiveness: Keeping JavaScript fast during heavy operations
- Adaptability: Applying these concepts across various JS environments
- Practical Examples: Effective patterns for robust data management

WebXR? Virtual Reality and Augmented Reality natively on browsers en

In this session, I'll uncover the A-Frame framework, simplifying the process of creating powerful web-based VR and AR applications.

Get ready for exciting demos as I unravel the ease and potential of A-Frame, inspiring you to unlock your creativity.

Prepare to enter a new era of development, where innovation has no limits!

Takeaways:

- Discover how VR and AR fit seamlessly in modern browsers
- A-Frame Basics Learn to build interactive 3D scenes with minimal effort
- Multi-Device Support Deliver rich experiences for Meta Quest, Apple Vision, and more
- Inspiring Demos Watch real-world examples of VR and AR in action
- Unleash Creativity Envision new possibilities beyond conventional web apps

I've already given this one in different conferences and the feedback was the best so far: https://gitnation.com/contents/webxr-virtual-reality-and-augmented-reality-natively-on-browsers

Turbocharging JavaScript: Identifying and Fixing Node.js Performance Bottlenecks en

Discover how to find and fix Node.js performance bottlenecks in this practical session. We’ll use Tracing, CPU Profiling, Telemetry, and metrics to spot inefficiencies, then apply techniques like multithreading, multi-process designs, or replacing packages to boost responsiveness and scalability. With just a few targeted changes, you can transform slow apps into high-capacity systems.

Outline

- Identify Bottlenecks: Use Tracing, CPU Profiling, and Telemetry to uncover hidden issues.
- Interpret Metrics: Diagnose common slowdowns and understand where to optimize.
- Real-World Solutions: Implement multithreading, multi-process setups, and strategic package swaps.
- Maximize Throughput: Make minimal, high-impact tweaks to supercharge JavaScript applications.

What’s New in Node.js and JavaScript for 2025 en

Description:

Explore the latest advancements in Node.js and JavaScript in this talk, showcasing how new features are transforming modern development. From cutting-edge ECMAScript updates to the newest tools and capabilities in Node.js, learn how these innovations can streamline workflows and unlock new possibilities for your projects.

Outline:

This talk, *"What's New in Node.js and JavaScript,"* dives into:
- The latest ECMAScript features and their practical applications.
- Node.js updates, including performance enhancements and modern capabilities.
- Live demos showing how these features solve real-world challenges.

Attendees will leave with insights into leveraging these tools to elevate their projects and stay ahead in the JavaScript ecosystem.

Takeaways:
- Understand the newest features in Node.js and JavaScript.
- Learn how these updates improve development workflows.
- See real-world demos of cutting-edge tools and techniques.