Blog

HttpOnly cookies vs memory, refresh token reuse detection, sliding sessions, and why BFFs still help browser security.

Selectors, fixtures, test isolation, parallel sharding, trace-on-failure, and avoiding flaky waits in browser automation.

Exponential backoff, jitter, max attempts, ping/pong health checks, and resuming state after reconnect.

layout and layoutId for shared element transitions, FLIP under the hood, performance with transform, and reduced motion preferences.

Resize, format conversion, WebP/AVIF, streaming pipelines, memory limits, and integrating with Next.js Image or upload workers.

Matcher config, auth redirects, geolocation headers, A/B flags, and what you cannot do in middleware without hurting TTFB.

Uploading maps in CI, debug IDs, scrubbing PII, sampling transactions, and correlating errors with deployments.

Schema as code, migrations, relations vs manual joins, SQL-like query builder, and comparing Drizzle to Prisma for control freaks.

Rules of React, what the compiler proves, reducing useMemo/useCallback noise, and interoperability with existing codebases.