Guides
Guides
Short, evergreen how-tos written from the same problems the products are built for. Each one stands on its own; the product appears only where it is the answer.
Why a package install returns 403, and what to do
A 403 from npm, pip or dotnet inside CI usually means a policy said no. How to tell policy from authentication, read the refusal, and fix the right thing.
A certificate rotation checklist that reads what was served
Renewal jobs fail quietly and rotations install the wrong chain. A short checklist for checking the certificate a server actually serves, from outside.
Triage a vulnerability advisory by exposure, not by count
When an advisory lands, a scanner lists every occurrence. How to answer which releases ship the package, whether code can reach it, and what to patch first.