- Apps and @mancala/core depend on the packages in this repo through
link: dependencies instead of the npm releases, so changes no longer
need a publish
- Root package.json gets a build:packages script that installs and
builds both packages
- Backend and frontend Docker images are built from the repo root so
they can include the packages; compose builds them that way
- Metro watches the packages folder and resolves their imports from the
app's node_modules
