My blog got popular, and my bandwidth exploded to ~300GB in just 10 days
This made me take a good, hard look at my Astro blog and start optimizing: assets, headers, caching, CDN. Here is exactly what I did to fix it.
The Blog
Javascript Related articles written by Neciu Dan
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· reactNow more then ever, you need to master custom ESLint rules
I spent three days building a custom ESLint rule and accidentally learned how JavaScript actually works. ESLint is just walking your code's syntax tree and running functions against each node. Once you see it, you can enforce any coding standard automatically instead of arguing about it in PR reviews.
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· reactYou really, really, really don't need an effect! I swear!
Before you write another useEffect, ask one question: is this syncing with an external system? If not, there's a better way.
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· react10 React tips I wish someone had told me before I mass-produced bugs
After running a 30-day React deep-dive, these are the 10 patterns that changed how I write components, manage state, and think about performance.
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· reactBuild your own shimmer skeleton that never goes out of sync
Skeleton screens break every time you touch the UI. Here's how to build one that reads the DOM and keeps itself in sync automatically.
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· reactStart naming your useEffect functions, you will thank me later
I started naming my useEffect functions about a year ago. It changed how I read components, how I debug them, and eventually how I structure them.
🎙️ Latest Podcast Episodes
Explore conversations with senior engineers about scaling applications, teams, and careers.
Episode 30
58 minutes
Señors @ Scale host Neciu Dan sits down with Tyler Benfield, Staff Software Engineer at Prisma, to go deep on database performance. Tyler's path into databases started at Penske Racing, writing trackside software for NASCAR pit stops, and eventually led him into query optimization, connection pooling, and building Prisma Postgres from scratch. From the most common ORM anti-patterns to scaling Postgres on bare metal with memory snapshots, this is the database conversation most frontend developers never get.
📖 Read Takeaways
Episode 29
52 minutes
Señors @ Scale host Neciu Dan sits down with Corbin Crutchley — lead maintainer of TanStack Form, Microsoft MVP, VP of Engineering, and author of a free book that teaches React, Angular, and Vue simultaneously — to dig into what it actually means to maintain a library that gets a million downloads a week. Corbin covers the origin of TanStack Form, why versioning is a social contract, what nearly made him quit open source, and the surprisingly non-technical path that got him into a VP role.
📖 Read Takeaways
Episode 28
58 minutes
Señors @ Scale host Neciu Dan sits down with Andrey Sitnik — creator of PostCSS, AutoPrefixer, and Browserslist, and Lead Engineer at Evil Martians — to explore how one developer became responsible for 0.7% of all npm downloads. Andrey shares the discrimination story that drove AutoPrefixer, the open pledge that forced PostCSS 8 to ship, and why the Mythical Man-Month applies directly to LLM agent coordination.
📖 Read Takeaways
Episode 27
52 minutes
Señors @ Scale host Neciu Dan sits down with Aurora Scharff — Senior Consultant at Creon Consulting, Microsoft MVP in Web Technologies, and React Certifications Lead at certificates.dev — to explore the real mental model shift required to understand React Server Components. Aurora shares her path from Robotics to frontend, what it was like building a controller UI for Boston Dynamics' Spot robot dog in React, and why the ecosystem finally feels like it's stabilizing.
📖 Read Takeaways