easy way for workspaces to opt-in to plugins

[paularmstrong]

Use case:
I have a repo with 6 apps. 3 of them all use Vite to create client-side only applications while the other 3 are using Next.js. I don't want to duplicate commands across each of these, but a single command is not appropriate, since half of the apps are completely different than the others.

Proposal:

• Some way of opting into plugins?