For example, store inference results, explanations, etc and then use them in a different process. I currently use separate database for this.

You can use artifacts for complex data then retrieve them programatically.
Or you can manually report scalers / plots etc, with Logger class, also you can retrive them with task.get_last_scalar_metrics

I see that you guys have made a lot of progress in the last two months! I'm excited to dig in 

Thank you!

You can further dig with Task.get_tasks to get / filter / sort tasks based on any metric reported.