🎙️ “Be curious and don’t trust everything you read online.” Join our conversation with @nodeland.dev — Co-Founder & CTO of @platformatic.dev, Node.js TSC member, creator of Fastify & Pino, and prolific open source contributor with modules downloaded over 17 billion times a year.

Thanks you @lnugOrg tickets go fast everyone wants to meet and learn from @nodeland.dev and @platformatic.dev - our events next week will be packed! Make sure you get the last few tickets - just 4 left - Final 4 cityjsconf.org/workshops

Remember that thread about Node.js + Kubernetes performance issues? Plot twist: K8s and Node.js are actually a PERFECT match. The problem? Most teams are using 2010 patterns for 2025 architecture. On October 1st, we will discuss how to do it right. Time to level up 🧵

This is the @nodeland.dev effect! He decides to do a workshop in London and this gets #Soldout Register for the free meetup - 30/9 guild.host/events/jsmonth…

Five days until my Node.js workshop in London and this is it - final call for seats If you've been following along for the past 6 weeks, you know this isn't another basic tutorial This Monday, September 29th, we're diving deep into production Node.js 🧵

🚀 Enterprise Node.js apps are powerful but complex. Over-provisioned clusters, slow autoscaling, and disconnected metrics are silently killing your budget and risking outages. What if you could predict problems before they happen? Join us tomorrow, Sep 24th 👇

Open source foundations don’t run on “magic piles of money.” Registries, CDNs, CI pipelines, security response and compliance work all require sustained support. Read why OpenJS joined peers in signing “Open Infrastructure is Not Free.” 🔗 hubs.la/Q03KtFgr0

🚀 BIG NEWS: We just open-sourced the Intelligent Command Center (ICC) for Node.js! After years of watching teams struggle with Node.js on Kubernetes, we're changing the game. The problem? K8s was built for Java/.NET, not Node.js's async model. The cost? 40% overprovisioning. 🧵

We need to talk about Node.js in Kubernetes. The platform meant to deliver elasticity is actually slowing Node.js down and making it more expensive to run. Here's why your "autoscaling" might be bleeding money 🧵👇

Given all the questions about native TypeScript support in Node.js, I should prepare some content to explain it. Maybe somebody already did, and I couldn't find it. Do you know about content explaining it from the user perspective (like how to convert from a compiled app to type stripping)?

ℹ️ Don't know who needs to hear this but npm has had a --before=<date> flag since v6.9.0 (02/2019): github.com/npm/cli/blob/v… Setting a relative date is easy w/: $ npm install --before="$(date -v -7d)" # & only get registry deps that are over a week olddocs.npmjs.com/cli/v11/usin...re

Moving a client's old email system from Meteor + MJML to @fastify.dev + react.email 💌 - Actual @react.dev for templating (w/ Context for nested components) - TailwindCSS for styling - Type-safe props on render (no more failed/missing expansions) Neat.

One week until my Node.js workshop in London and I need to share this urgent production lesson: "Performance optimization without proper measurement is just expensive guesswork" Here's what I mean 🧵

🚨 Ever shipped code that broke in production because an API payload changed? You're not alone. API integration bugs cost teams thousands of hours yearly. But what if your TypeScript compiler could catch these errors before they hit production? Let's talk type safety 🧵

I’m starting to think that sending a security report should come as a bet. If it’s accepted and valid, you get double. If not, you lose it. This would remove so much of the effort on the maintainers side.

The tsc module is the most underrated helper of all LLMs 🤣🥶

And guess what our upcoming workshop with @nodeland.dev on NodeJS Advanced workshop is now #SoldOut - Limited availability for #latebirds

Two weeks until my Node.js workshop in London and here's what I'm hearing from teams who've tried to implement what I teach: "We understand the concepts but struggle with the real-world implementation" Let me show you what I mean 🧵

Join @apollographql.com's MCP Server Builder Series this Thursday in Amsterdam! I'll be there, will you? Incredible lineup, incl. @pimeys.nauk.io, @nodeland.dev, @debergalis.bsky.social, & more 👀

🚨 Your outdated @nodejs version isn't just old. It's a ticking time bomb 💣 Join us tomorrow Sept 10th as @erickwendel.bsky.social reveals the hidden costs and risks of not updating Node.js that most teams don't see until it's too late. streamyard.com/watch/5JqVQrxiwEG2

🚨 Your GraphQL subscriptions are silently losing messages, and you don't even know it. WebSockets give you real-time updates, but when they fail (and they will), your chat messages, notifications, and live dashboards just... vanish. blog.platformatic.dev/resumable-gr... Let me show you how🧵

Just about to go on stage to talk about GraphQL Subscriptions and how to make them reliable!

The npm team has shipped OIDC publishing from GitHub and GitLab! Has anybody tried it yet? Finally no more npm token leaks!

Three weeks until my Node.js workshop in London and I just debugged another "invisible" production issue: "Our API is slow but all our metrics look normal" The problem? They were measuring the wrong things 🧵

🔥 Your Node.js app is slow. You add more servers. It's still slow. You add even MORE servers. Your AWS bill explodes. The problem? You're fighting blind. Time to change the game with continuous profiling that actually works. A 🧵 on how we're fixing this 👇 blog.platformatic.dev/how-continou...

🌐 Reminder from the Node.js TSC meeting today: We're having a Collaborator Summit next October 17th! github.com/openjs-found...

🚀 Today we're shipping Watt 3 - the evolution of our Node.js application server. 15 breaking changes. Months of work. One goal: make Node.js development fast, simple, and production-ready. Let me tell you why this matters 🧵

Pino is now published with provenance. www.npmjs.com/package/pino

🔥 Today we're shipping something special at @platformatic: Next-generation flamegraph visualization for Node.js! We've built a complete profiling ecosystem that makes performance optimization intuitive and actionable. Let me show you what we've cooked up 🧵

Big news! We're launching Massimo - the evolution of @platformatic/client, now battle- tested in production by companies like @Spendesk! From prototype to enterprise-grade: Meet the type-safe API client generator transforming how teams build API integrations. 🧵👇

🔥 Your Node.js app is slow, but you don't know why. You've tried everything—logs, metrics, profilers—but the bottleneck remains hidden. Enter flamegraphs: the tool that makes the invisible visible. Join us Sept 3rd for "Reading the Fire" 🎙️ 👇 🧵

Four weeks until my Node.js workshop in London, and here's a production horror story I hear too often: "Our Node.js microservice was fine until we hit 1000 concurrent users. Then it just... died." The culprit? Worker thread mismanagement 🧵

🚀 Using #NodeJS in production? Join @nodeland.dev next month a 4⃣hr workshop you can’t miss! 🔥 Topics ⚡ Event Loop Optimization 📦 Strategic Caching Patterns 🤯 Promise Pitfalls & Alternatives 🧵 Worker Threads & Multithreading 📊 Metrics & Monitoring 🔭 OpenTelemetry 👉 RSVP ti.to/cityjsconf-l...

🧵 Most developers are building custom caching layers for problems HTTP solved 30 years ago. Before you write another line of cache code, let's talk about the superpower hiding in plain sight: HTTP caching. Join us Aug 27th 👇

🚨 Using setImmediate() in your Node.js apps? You might be creating silent performance bombs that only explode in production. Our latest webinar breaks down why this "simple" async function is one of the most misunderstood tools in Node.js 🧵👇

Five weeks until my Node.js workshop in London and I keep hearing this: "We cache everything but our app is still slow" Here's the caching mistake I see in 90% of enterprise Node.js apps 🧵

🧵 It's 3 AM. Your app is making the same API calls thousands of times. Rate limits are hitting. Timeouts everywhere. Your makeshift Map() cache is eating all your RAM. There's a better way. Let me show you how we got 550x faster responses with undici-cache-redis 👇

🚀 Excited to share what I'll be presenting at #GraphQLConf! My talk: "GraphQL Subscriptions Are Stateful; We Made Them Stateless" Ever lost messages when your WebSocket connection drops? You're not alone. 📡💔

Why is no one talking about this PR that brings multi-threaded linting to eslint itself 🤯 Tried it out on the @sentry.io codebase and it yields an instant 35% time reduction with `--concurrency=2` in CI 🔥 This is fantastic 🚀

Live right now! I'm chatting with @nodeland.dev and Luca about AsyncContext and @nodejs.org tracing in general. www.youtube.com/live/NieU87M...

One week since I announced my Node.js workshop and the questions keep coming! The most common one: "How do I know if the event loop is actually blocked in my production app?" Here's what I teach enterprise teams to look for 🧵

🚀 Struggling with Kafka observability in @nodejs.org? We just released (at) platformatic/kafka-opentelemetry - zero-config OpenTelemetry instrumentation that gives you instant visibility into your Kafka apps! ✨ No monkey patching, full OTel compliance, TypeScript-first 📊 Traces + metrics

just another day of working on a Node.js project. today it is fastq.

🧵 🤔 Is distributed tracing worth its overhead in @nodejs.org? Every trace you capture changes your app's behavior. Every context you propagate costs performance. But when do the insights outweigh the cost? Let's explore the tradeoffs 👇

🚀 New workshop: "High-Performance Node.js: From Event Loop Mastery to Production Observability" Join my 4-hour intensive workshop on September 29th in London to learn advanced Node.js techniques for building scalable, enterprise-grade applications.

JS Conf US is happening again! This is a big deal, it has not occurred for some time. I'm thrilled to keynote and speak alongside folks I deeply admire: @devdevcharlie.com @evanyou.me @aysegul.bsky.social, more My talk is on fundamentals! We'll go deep into plaforms and systems, using my drawings

🚨 How much does observability REALLY cost your @nodejs app? We ran comprehensive performance tests on AsyncLocalStorage & OpenTelemetry across Node.js v22 vs v24. The results will shock you. Thread 👇

🧵 AI tools are everywhere, but sharing AI conversations across your team? Still a complete mess. Most teams are stuck copy-pasting chat logs and syncing prompts over Slack. There's got to be a better way... Thread on what we learned building stateful AI workflows 👇

Is your Node.js application constantly crashing? 💥 You might think it's a memory leak, but what if it's something else entirely? 🤔 In my recent talk at Dot JS, I break down what's really happening under the hood with Node.js memory.

PSA.. the @nodejs.org TSC just had a leadership vote. @nodeland.dev is the new TSC chair. @ruyadorno.com and I will be serving as the Co-Vice Chairs.