Source models are the entry point for data into dbt-nexus. Each source maps raw data from an external system into the standardized nexus format.

• Create Source Models -- Build new source models from scratch
• Recommended Structure -- Best practices for organizing source models
• Pre-Aggregated Sources -- Pattern for ad platforms, search analytics, and other aggregate-only data
• Source Tests -- Testing strategies for source models
• Development -- Local development workflow for sources
• Template Sources -- Pre-built source templates for common platforms