https://cesarvenzac.com César Venzac is a software engineer in Mougins, France, building websites with Next.js and mobile apps with Expo. en https://cesarvenzac.com/blog/sound-follows-motion https://cesarvenzac.com/blog/sound-follows-motion An interface sound is motion you can't look away from. Give it a budget set by how often it's heard, and land it on the movement it belongs to. Tue, 13 Oct 2026 11:00:00 GMT https://cesarvenzac.com/blog/answers-that-arrive-well https://cesarvenzac.com/blog/answers-that-arrive-well Streaming made answers start sooner. Drawn the moment each piece lands, it also makes the reader keep pace with the network. Put something between the two. Tue, 13 Oct 2026 10:00:00 GMT https://cesarvenzac.com/blog/easing-is-a-decision https://cesarvenzac.com/blog/easing-is-a-decision Most interfaces animate on whatever curve the library shipped with. That curve is a guess about your content, and it's usually wrong. Wed, 19 Aug 2026 09:00:00 GMT https://cesarvenzac.com/blog/optimistic-ui-needs-an-exit https://cesarvenzac.com/blog/optimistic-ui-needs-an-exit Rendering a mutation before the server confirms it is the easy half. The hard half is what the interface does when you were wrong. Thu, 04 Jun 2026 09:00:00 GMT https://cesarvenzac.com/blog/springs-in-three-numbers https://cesarvenzac.com/blog/springs-in-three-numbers Stiffness, damping, mass. A short, practical map of what each one does to the feel of a component — and which two you should actually touch. Fri, 27 Mar 2026 09:00:00 GMT