Engineering notes

Technical write-ups from real projects — concurrency, theming, caching and tooling.

• Dynamic HSL Theme Customization in React

  2026-07-02 · 4 min read · React, CSS, Tailwind, Motion

  How to build a theme customization panel using CSS custom properties, HSL color calculations, and local storage preservation.

• Optimizing Vercel Edge CDN Caching Headers

  2026-07-08 · 5 min read · Vercel, CDN, Caching, DevOps

  Enforcing cache invalidation rules, immutable assets, and s-maxage controls to build a blazing fast, globally cached SPA.