Incremental builds

[karashiiro]

Is your feature request related to a problem? Please describe.

Currently, builds require rebuilding all project packages, even when they haven't changed. This already takes ~15s, and it'll only get longer as we add more official plugins to the project.

Describe the solution you would like.

Incremental builds.

Describe alternatives you've considered.

Alternatively (maybe as a holdover), a simple way to only rebuild specified packages when using yarn dev.

Screenshots

No response