I loved @farisaziz.com take on using local meetups like @zurichjs.com, as a medium to beta-test his conference talks. Its a brilliant way to refine technical concepts while enriching the local community. Actually, I stole his idea, as well as many others 😂 Episode: neciudan.dev/takeaways/fr...

Frontend Architecture at Scale – With Faris Aziz - Takeaways | Señors @ Scale Podcast

Key takeaways from Episode 9: Frontend Architecture at Scale – With Faris Aziz with Faris Aziz. In this episode of Señors @ Scale, host Neciu Dan sits down…

neciudan.dev

@tkdodo.eu was the first tech blog I read through and the first time I felt like I was referring to a non-documentation source of knowledge of specific technology that often. Also, I really like how he frames OSS as something that should not be "resume-driven". Episode: neciudan.dev/takeaways/ta...

TanStack Query at Scale with Dominik Dorfmeister - Takeaways | Señors @ Scale Podcast

Key takeaways from Episode 37: TanStack Query at Scale with Dominik Dorfmeister with Dominik Dorfmeister. Señors @ Scale host Dan Neciu sits down with…

neciudan.dev

I'm a big fan of @crutchcorn.dev @playfulprogramming.com initiative and love how he sees open source as much more about collaboration and communication than about code. Definitely check out his Framework Field Guide - it's awesome. Episode: neciudan.dev/takeaways/op...

Open Source at Scale with Corbin Crutchley - Takeaways | Señors @ Scale Podcast

Key takeaways from Episode 29: Open Source at Scale with Corbin Crutchley with Corbin Crutchley. Señors @ Scale host Neciu Dan sits down with Corbin…

neciudan.dev

As I'm doing more and more public speaking, I've dedicated a separate section for those events on my new home page. One of those appearances will be on the "Señors @ Scale" by @neciudan.dev podcast, which we record today. Check out my curated list of amazing episodes linked below. 👇

In Chrome 151, you can measure SPA navigations. Every client-side route change in your SPA finally gets its own LCP, CLS, and INP Check it out 👇 https://developer.chrome.com/docs/web-platform/soft-navigations

AI agents write tests for everything they touch, and CI is slow. I wrote an article on how to build a frontend CI that only lints, typechecks, and tests the files that change (and their dependency graph). Check it out 👇 https://neciudan.dev/ci-cd-in-the-age-of-ai-part-1

"You can have a compliant website. It doesn't necessarily mean it's usable." New Señors at Scale with @craigabbott.co.uk on sustainable accessibility, testing what automation misses, and why AI writes bad front-end code. https://youtu.be/3Q2se9jI-wA

📬 Newsletter edition 21 just went out. Catch up here 👇 📝 What happens to the hundreds of useMemo calls already sitting in your codebase once the React Compiler does it at build time https://neciudan.dev/react-compiler-explained

🎟️ Still have training budget left this year? Here is where you can spend it on👇 Use REACTJSBARCELONA_10 for 10% off: https://conf.zurichjs.com

Two sites running the same 8 GB model each download it, so you end up with 16 GB on disk for one file. Cross-Origin Storage (proposal) identifies a file by its content fingerprint, so both sites share a single copy. https://morello.dev/blog/cross-origin-storage-api

Anthropic cut over 80% of Claude Code's system prompts for the newest models, with no loss in their evals. The rules you wrote to keep older models in line are now making newer ones worse. Check out the full post from @trq212 👇

Two tabs of your app can run the same job at once, which can cause race conditions. The browser can help you with this with the Web Locks API Check out the full API 👇

Do we still need state management libraries? If we split out the state correctly into UI (useState), Session (Context), Server (Query), we are left with just a small piece that needs State Libraries 👇 https://neciudan.dev/do-we-need-state-management-libraries

"Jack of all trades, master of none, but oftentimes better than master of one." New Señors at Scale with Carmen Huidobro @hola-soy-milk.online , CTO at Incredible Bee. https://youtu.be/1PmO123LtDA

📬 Newsletter edition 20 just went out. Catch up here 👇 📝 Where your auth token should live, with the architecture the OAuth working group ranks most secure above everything else → https://neciudan.dev/most-secure-way-to-store-auth-token

🚨 GitHub Actions Cache Poisoning 🚨 I wrote a full breakdown with 6 audits to run on your repos and 10 fixes you can apply today: https://neciudan.dev/github-actions-poisoning Have you audited your workflows?

Have you used Proxy and Reflect before? Proxy lets you intercept an object's operations. Reflect lets you perform the original operation correctly from inside your interception. Its what makes Valtio and MobX so cool.

Media queries in React Native StyleSheet 🚀🚀🚀🚀 No more custom hooks. Your app switches to dark mode without a single React re-render. Check out the RFC 👇 https://github.com/react-native-community/discussions-and-proposals/pull/1010

3 things you can do to make your Playwright CI faster: → workers: run them in parallel by setting them to 50% → Don't install all browsers if you dont need to -> cache ~/.cache/ms-playwright Also re-use auth with storageState

⚛️ Still writing useMemo by hand? The React Compiler does it for you. Check out what it is, how it works, how to turn it on, and what to do with current useMemos and useCallbacks in your code. https://neciudan.dev/react-compiler-explained

💬 "I know that I'm wrong, I just don't know how wrong I am. So you need to run experiments to prove your hypothesis." That's Marko Gaćeša, Head of Product at Semaphore, the agent native, open-source CI/CD platform. Check it out 👇 📺 YouTube: youtu.be/nJ4zhHhEiNs

CI/CD at Scale with Marko Gaćeša (Semaphore) | Product Engineering, Agent Native, Semaphore

YouTube video by Neciu Dan - The Señor Developer

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📬 A new Newsletter edition just went out. Catch up here 👇 📝 Every rendering and hydration strategy we use to make pages interactive faster, with the trade-offs → https://neciudan.dev/hydration-and-rendering-strategies

🤖 Is your AI feature exploitable? Check out my FREE Security course👇 Module 3 of my frontend security course covers the attacks that arrived with LLMs. https://neciudan.dev/master-security

CSS can position tooltips now. The Anchor Positioning API sticks one element to another, and position-try-fallbacks flips it when it would overflow the viewport. Josh Comeau wrote a great intro: https://www.joshwcomeau.com/css/anchor-positioning/

There's an HTTP status code for performance. 103 Early Hints sends your preload and preconnect headers before the real response, so the browser downloads your CSS and hero image while your backend queries the database.

There's an HTTP status code for performance. 103 Early Hints sends your preload and preconnect headers before the real response, so the browser downloads your CSS and hero image while your backend queries the database.

🎤 Faris Aziz is joining #WhatTheStack! Staff Software Engineer at Smallpdf, co-founder of ZurichJS, and international speaker. His talk: “Reverse-Engineering Seniority”, from bootcamp grad to Staff Engineer in four years 🚀 📅 Sept 19 | Skopje 🎟️ wts.sh

QUERY just became a proposed standard. It carries a body like POST, and the method itself declares the request safe and idempotent, so caching and retries finally work. https://www.rfc-editor.org/info/rfc10008/

@farisaziz.com rocking @reactbarcelona.bsky.social

Where should your auth token live? I wrote an entire article where I cover: localStorage, httpOnly cookies, BFF patterns, OAuth, and more Check it out 👇 https://neciudan.dev/most-secure-way-to-store-auth-token