As the one who implemented Airflow at my company, I understand how overwhelming it can be, with the DAGs, Operators, Hooks and other terminologies.

This looks like a good enough mid-term alternative. However, I have a few questions (which I couldn't find easily in the homepage, sorry if I skipped something):

- Do you have a way of persisting connection information? I saw an example of how to create a connection, but it isn't clear if the piece of code has to be loaded every time you execute the ETL

- How easy it is to implement new computation engines?

- Plans of creating a command line to make it easier to execute operations?