How Piwi was built
The story and the hard parts of an eight-month side project: gathering failure evidence, grouping failures by cause, diagnosis grounded in your real diff, and the two rules behind all of it.
Notes on how Piwi is built: the engineering behind the features, and the reasoning behind the trade-offs. Written for people who run Playwright suites and want to know how the parts actually work.
August 17, 2026 · Fabien Ménager
The story and the hard parts of an eight-month side project: gathering failure evidence, grouping failures by cause, diagnosis grounded in your real diff, and the two rules behind all of it.