Models directory is needed to run the dag

[alex-ld]

Hi,
I have been trying out this example DAG. I managed to run the dbt project on both local and airflow with the models folder. However, when the folder was removed, dbt found 0 models with only manifest.json (I ran dbt compile beforehand so the manifest file does contain all compiled sql).

The README says you only need those 3 files to run dbt, am I missing something?