Blog

What we learned shipping it.

Working notes from the engine — what moved, what got reverted, and the reasoning behind both.

LatestMeasurement4 Aug 20269 min

How we hold every change against a control

Isolating a single collection-page rewrite from season, algorithm and everything else shipping that week — the design of the holdout, and what it costs us to keep it honest.

Read it

Topic clusters

1 article · more clusters soon

The next articles land here as they are written.