Apache Airflow’s ability to define workflows as a code allows creating dynamic workflows. This example kept the dynamic aspect very simple, but it clearly shows how far it can go. Instead of having a dynamic integer value, a JSON structure containing multiple bits of information can be used to create DAG's tasks.
For developers, that is probably making sure that the application or software that is delivered works as intended. To achieve that, there are a few issues that must be tested and handled before the release.