Optimizing Interaction to Next Paint (INP) in Complex React & Next.js Apps
A practical guide to diagnosing interaction latency, using React concurrency APIs responsibly, reducing main-thread work, and validating INP with lab and field data.
WRITING & FIELD NOTES
Thoughts on AI systems,
software craft & leadership.
Practical essays, architecture postmortems, and reflections on building resilient developer tools, local-first agent infrastructure, and fostering high-velocity teams.
Zero-JavaScript Thresholds: Strategic Code-Splitting and Asset Loading for Sub-Second LCP
Critical rendering path optimization, font preloading, fetch priority for hero elements, dynamic component imports, and tree-shaking heavy third-party dependencies.
Frontend Security Blueprint: Hardening SPA & SSR Apps Against XSS and Token Theft
Why storing JWTs in localStorage is a vulnerability magnet, implementing HttpOnly SameSite=Strict cookies via BFF proxies, strict CSP headers, and DOM-based XSS prevention.
Securing Client-Side Web Storage and Third-Party Dependencies in Modern JS Platforms
Mitigating npm supply chain vulnerabilities, enforcing Subresource Integrity (SRI), sandboxing third-party iframes, and sanitizing user inputs.
Scalable React State Management: When to Use Local, Context, Zustand, or Server State
Solving context re-render thrashing, decoupling UI components from network fetching with SWR/React Query, and establishing maintainable state boundaries.
Building Accessible Component Systems (a11y) Without Sacrificing Visual Aesthetics
WAI-ARIA disclosure patterns, focus trap management in dialogs, spatial keyboard navigation contracts, live regions, and automated CI accessibility audits.