Sofrito
By this point a Design System is pretty standard tablestakes for a product group and Sofrito is ours. Named after the common recipe base which Dorothy described as "the very base of the meal on which more flavors are built" which sounds an awful lot like the goal of a good design system!
We've built ours on Radix UI using their Primitives. It could be that we should've started from one of their Themes but we're starting basic.