Each template ships with a vetted DAG, variable registry, physics constraints, and an example dataset. Fork it, modify it, or start blank — the pipeline doesn't care.
The Blank template is a project skeleton — project.yml, an empty DAG, an empty variable registry. Add your variables, propose your edges, run.
Geotech for ground stability? Hydrology for surface water? Most domains share more structure than you'd think. Fork the nearest and rewrite.
If you build a template you'd like others to use, the SPARC pipeline accepts community templates via PR. Bring data, a DAG, and a citation.