Having worked on design system teams before people can burn a lot of time and money doing overly nuanced stuff. I have been in meetings discussing removing/adding a property on a React component before.
That said 3 motivated developers and a designer should be more than sufficient to build a css library, but you could 100% have a team of 20 and they would find stuff to do.
That said 3 motivated developers and a designer should be more than sufficient to build a css library, but you could 100% have a team of 20 and they would find stuff to do.