AI & MLTutorial
Build a RAG pipeline that holds up in production: chunking strategies, embeddings in pgvector, hybrid search with RRF, reranking, citations, and evaluation.
BackendGuide
When to call a service directly and when to send a message, plus timeouts, retries, circuit breakers, idempotent consumers, the outbox pattern, and sagas.
FrontendGuide
Fix Core Web Vitals on real sites: measure LCP, INP, and CLS from real users with the web-vitals library, then apply the fixes that move your 75th percentile.
DevOpsTutorial
Ship zero-downtime deployments with Docker and GitHub Actions: graceful shutdown, readiness checks, blue-green with Compose and Caddy, and safe migrations.
BackendGuide
A practical guide to REST API design: resource URLs, status codes, RFC 9457 errors, keyset pagination, idempotency keys, ETags, versioning, and rate limits.
ReactDeep dive
Learn how React Server Components work, what the use client directive really marks, and how to fetch, stream, and mutate data safely in the Next.js App Router.
BackendComparison
How server-side sessions and JWTs work, what stateless auth really costs, how to revoke and store tokens safely, and when I choose each one for an API.
JavaDeep dive
Learn how Java virtual threads scale blocking code: how they work, a runnable HttpClient fan-out, pinning, ThreadLocal pitfalls, and Spring Boot setup.
BackendGuide
A practical guide to Redis caching in TypeScript: cache-aside, TTL jitter, safe invalidation, write-through, write-behind, stampede fixes, and eviction.
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