- postgres replaces keycloak-db and holds a keycloak and a mancala database,
each with its own user, created by apps/postgres/init
- valkey with an append-only file for live game state and caches
- backend gets DATABASE_URL and VALKEY_URL
- 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
