# Han Nguyen

> Senior Front-end Engineer — 9 years building high-scale Next.js systems

- [Han Nguyen](https://miliracle.online/index.md): Writing on frontend architecture, performance, AI workflows, and engineering leadership.
- [The Critical Rendering Path](https://miliracle.online/writing/performance/critical-rendering-path.md): How a browser turns files into pixels, then into a working app
- [Tips tối ưu hiệu năng khi viết TypeScript](https://miliracle.online/writing/performance/typescript-performance-tips.md): Các lưu ý về hiệu năng khi giải bài toán Top K Frequent Elements bằng TypeScript.
- [What Is a Database?](https://miliracle.online/writing/database/what-is-a-database.md): From punch-card trees to databases that tune themselves: a visual guide to where your data actually lives.
- [The Relational Model](https://miliracle.online/writing/database/relational-model.md): Relations, tuples, keys and constraints: a visual guide to the idea behind every SQL database.
- [What Are ACID Transactions?](https://miliracle.online/writing/database/acid-transactions.md): A bank transfer, a crash and two ATMs: a visual guide to atomicity, consistency, isolation and durability.
- [Reading](https://miliracle.online/reading/index.md): Notes and summaries from the books I read.
- [High Performance Browser Networking](https://miliracle.online/reading/high-performance-browser-networking/index.md): Chapter-by-chapter notes on Ilya Grigorik's book on network performance.
- [01 · Primer on Latency and Bandwidth](https://miliracle.online/reading/high-performance-browser-networking/01-latency-and-bandwidth.md): What actually makes a network slow, and which half you can buy your way out of.
- [02 · Building Blocks of TCP](https://miliracle.online/reading/high-performance-browser-networking/02-building-blocks-of-tcp.md)
- [Notes](https://miliracle.online/notes/index.md): Short notes, hard-won lessons, and things I don't want to relearn.


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