How I should use "vue-demi" when I create a component library based on a vue-demi component library?

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Think a situation, I created a compenent library A using vue-demi, when I build A , I externalize vue-demi.
Now I want create library B based on A without vue-demi, when I build B, should I externalize vue-demi like build A ?

another question, when I use vue-demi in B, Is putting vue-demi in peerDependencies a better choice? because when I use library B in project, I will install two vue-demi version