Technical notes drawn from real projects: frontend, backend, AI, security, SEO, media and mobile apps.
Let the AI call your functions, show text as it arrives instead of a blank screen, and stop paying repeatedly for the same text. Correct models for October 2026, with Python and TypeScript.
Intermediate
One AI working on a big job loses track halfway. Split it across several small AIs with one coordinator, check results with your own measurements, and always keep a way back.
Intermediate
How to legally test your own website's defenses: permission and scope, a five-step process, testing permissions with two accounts, and writing a report others can act on.
Beginner
How to encrypt phone numbers, addresses and customer notes so a leaked backup is unreadable, with Node.js, Python and PHP code that was actually run.
Intermediate
Using Redis as a notebook of saved answers for your API: setting lifetimes, clearing cache safely, stopping a crowd from hitting the database at once, and sharing one Redis between sites.
Intermediate
Five things to do after installing Nginx: security headers, blocking sensitive files, HTTPS, login rate limits and the fake-IP trap via X-Forwarded-For, all built and tested.
Intermediate
Why a Server Action is a public door, why a static page shows old data, and why a fresh deploy gives a blank page. Checked on a real Next.js 14.2.35 build.
Intermediate
The ten OWASP Top 10 (2025) items explained for business owners and developers: what each means, how to test with two accounts, plus an automated check script that was run.
Intermediate
How to rotate JWT signing keys step by step so signed-in users are not kicked out: RS256/ES256 key pairs, the JWKS key list, and the order of publish, sign and retire.
Advanced