https://www.bidemi.xyz/thoughts Notes on what I'm building, and the things I'm figuring out along the way. en https://www.bidemi.xyz/thoughts/a-box-around-the-bug https://www.bidemi.xyz/thoughts/a-box-around-the-bug A failed test hands you a full-page screenshot and an assertion error, and leaves you to find the element yourself. So I built a Cypress plugin that boxes it and labels it, and learned a lot about coordinate spaces on the way. Fri, 28 Aug 2026 00:00:00 GMT https://www.bidemi.xyz/thoughts/who-owes-who https://www.bidemi.xyz/thoughts/who-owes-who A fortnight away with the same seven friends, and the same argument about money. So I built a bill splitter, and the thing that fixed it was routing every bill through one payer. Thu, 20 Aug 2026 00:00:00 GMT https://www.bidemi.xyz/thoughts/smart-test-selection https://www.bidemi.xyz/thoughts/smart-test-selection Seven products in one Cypress repo, running the full suite on every pull request. I built a selection engine that reads the diff and runs only what it could have broken, and cut our Cypress bill by more than 70%. Mon, 20 Jul 2026 00:00:00 GMT https://www.bidemi.xyz/thoughts/i-built-a-claude-skill-that-writes-your-pr-descriptions https://www.bidemi.xyz/thoughts/i-built-a-claude-skill-that-writes-your-pr-descriptions What Claude Skills are, and how I built one that turns a git diff into a pull request description. Tue, 24 Feb 2026 00:00:00 GMT https://www.bidemi.xyz/thoughts/why-engineers-should-write-unit-tests https://www.bidemi.xyz/thoughts/why-engineers-should-write-unit-tests Unit tests are usually the first thing to go when a deadline gets close, and that tends to be exactly when they would have helped most. Tue, 10 Feb 2026 00:00:00 GMT