Ust Oldfield provides an introduction to dbt:
dbt is an abbreviation for data build tools. It is primarily a SQL based transformation workflow, supported by yaml, to allow teams to collaborate on analytics code whilst implementing software engineering best practices like modularity, portability, CI/CD, testing, and documentation.
dbt is available using a CLI in the form of dbt core, or as a paid-for SaaS product in the form of dbt cloud.
Click through to see how the product works, including an example.