I absolutely agree with everything said here, and want to add this: building a design system + component library is much harder than it looks, and a very signif

I absolutely agree with everything said here, and want to add this: building a design system + component library is much harder than it looks, and a very significant time sink and working with a bad design system and component library is extremely inhibiting, especially when you want to scale. Definitely use a full-featured existing library (Material UI, Vuetify or similar) and customize to your needs.