Technical write-ups by Hernán Capucci. Each one is about something that actually happened here — what broke, how it was verified, and, where it applies, what turned out to be wrong. Every factual claim points at a public source you can check yourself.
13 August 2026
An agent filled in a form and the author field never made it to the server. I fixed that, then invented a second defect that never existed — because visible state, persisted state and derived state are three different things.