https://sammyjoyce.com/ Sam Joyce designs and builds software products and AI systems. en-AU Sun, 18 Oct 2026 00:00:00 GMT https://sammyjoyce.com/lab/quorum https://sammyjoyce.com/lab/quorum Sun, 18 Oct 2026 00:00:00 GMT When does adding reviewers make a verdict more reliable? Independence versus correlation. lab Systems and agents https://sammyjoyce.com/lab/fan-out https://sammyjoyce.com/lab/fan-out Sun, 18 Oct 2026 00:00:00 GMT Why a job that waits on many workers is slower than any one of them. lab Systems and agents https://sammyjoyce.com/lab/wake-on-message https://sammyjoyce.com/lab/wake-on-message Sun, 18 Oct 2026 00:00:00 GMT Services that sleep until a message arrives, wake with their state, and doze off again. lab Systems and agents https://sammyjoyce.com/lab/one-hue https://sammyjoyce.com/lab/one-hue Sun, 18 Oct 2026 00:00:00 GMT A twelve-step OKLCH ramp from one hue, with every WCAG ratio computed live. lab Type and colour https://sammyjoyce.com/lab/rag https://sammyjoyce.com/lab/rag Sun, 18 Oct 2026 00:00:00 GMT text-wrap set to wrap, balance and pretty, side by side, with no JavaScript files. lab Type and colour https://sammyjoyce.com/lab/scrub-number https://sammyjoyce.com/lab/scrub-number Sun, 18 Oct 2026 00:00:00 GMT A number field you can scrub, with acceleration you can see. lab Interface https://sammyjoyce.com/lab/optical-centre https://sammyjoyce.com/lab/optical-centre Sun, 18 Oct 2026 00:00:00 GMT Geometric versus optical centring, with the centroid drawn. lab Interface https://sammyjoyce.com/lab/spring-to-linear https://sammyjoyce.com/lab/spring-to-linear Sun, 18 Oct 2026 00:00:00 GMT Simulate a damped spring and compile it into a CSS linear() easing, with a visible error budget. lab Interface https://sammyjoyce.com/writing/nothing-else-moves https://sammyjoyce.com/writing/nothing-else-moves Sun, 18 Oct 2026 00:00:00 GMT On invariants: the promise a tool makes about everything it was not asked to change, in layouts, in source files and in coordinates. writing design engineering invariants https://sammyjoyce.com/writing/your-eval-score-is-a-distribution https://sammyjoyce.com/writing/your-eval-score-is-a-distribution Sun, 18 Oct 2026 00:00:00 GMT A benchmark number is one draw from a spread. Four figures on reading it. writing evals statistics agents https://sammyjoyce.com/colophon https://sammyjoyce.com/colophon Sun, 18 Oct 2026 00:00:00 GMT Static HTML, two variable fonts, and JavaScript only where a figure needs it. writing