# Infrastructure Database, cache, object storage, queue, and other external adapters belong in this layer. ## Database Run migrations from the repository root: ```bash DATABASE_URL=postgresql://pipeline:pipeline_local@localhost:5432/pipeline alembic upgrade head ``` `POSTGRES_DSN` is also supported. Reference data can be seeded with: ```bash DATABASE_URL=postgresql://pipeline:pipeline_local@localhost:5432/pipeline make seed ```