In-System Design 3/3A practical guide for designers: why I stopped choosing between canvas and code, and how one prototype travels both ways.For designers who know Figma well and have never written production code, and for the design system teams around them. Every technical word is explained in the box at the end.I have a confession that does not go down well on LinkedIn right now. Yes, I can prototype in code with my real design system components; I enjoy it, and I still want to be on a canvas some of the time. That is where I nudge things quickly, pull a screen apart, see the whole flow and its hierarchy at a glance, put three versions side by side, and pull someone over to argue about them. And at times, the prompt, wait, watch, prompt again loop bores me enormously. Sometimes it is real speed, and sometimes it is waiting that only looks like speed. And I want to use the right...