Multi-package repositories support

I have a project with a structure like so,

project/
  a/
    package.json
  b/
    package.json
  package.json

So our sub directories can have projects which have independent versions.

Is it possible to use semantic release to bump those versions independently through maybe special commit tags?

Example Commit Message:

[a] feat: Added new cool feature

That would bump a from 1.0.0 to 1.1.0

Ideas?