For developers, DevOps engineers, and the tech-curious who want clear, practical answers fast. We break down topics you actually use — so you spend less time Googling and more time building.
A production-ready playbook for building forms that are fast, inclusive, and resilient — with copy-paste patterns for HTML, React, and your APIs.
A practical, production-safe guide to CPU and memory profiling across Node.js, Python, and Go with real commands, code snippets, and a field guide to reading flamegraphs.
Trade-offs, pitfalls, and production-ready code with SQL, Node, FastAPI, MongoDB and Elasticsearch examples.
A battle‑tested checklist and patterns: allowlists, size limits, magic‑byte checks, streaming to object storage, virus scanning, image/PDF sanitization, signed URLs, and safe download headers.
Practical patterns for rock‑solid APIs: spec styleguide, reusable components, Problem Details errors, auth & versioning, pagination, idempotency, testing, and CI gates. Includes a copy‑paste 3.1 template.
Practical, modern defaults for CSP, HSTS, Referrer-Policy, Permissions-Policy, COOP/COEP/CORP, X-Content-Type-Options, X-Frame-Options vs frame-ancestors, cookies, and cache controls—with NGINX/Apache/Express snippets.