A version number that is a compatibility statement rather than a feature list. Three environments described by hand, and the import that is most of the work.
A project with forty hand-written utility classes can generate them from a map instead, with responsive and state variants included. The generated variants are the value: writing the…
A block rendered by PHP at request time returns null from save, which means the post contains only the block comment and its attributes. Returning null is what…
An invisible index is maintained on write and ignored by the optimiser, which makes dropping an index a reversible experiment instead of a commitment. The write cost is…
A sequence of steps across services cannot be rolled back, so each step has a compensating action that undoes its effect after the fact. The compensations are business…
A script runs to completion with nothing interleaved, which is exactly why it is useful and exactly why a slow one is an outage. The atomicity removes the…
Offset pagination over a list that changes between requests skips and duplicates rows, and it gets slower as the offset grows. The row-skipping is the correctness argument and…
Two services in two languages each invented their own request identifier header, and neither could follow a request into the other. Deciding where the identifier originates is the…