just seen there’s automation in Prefect Cloud, wanted to ask will it also be available for the open source version?

Automations are a feature of Prefect Cloud, but there is a subset of notifications available in the open source version (see here)

thanks for the reply! notification is fine, but i find it very useful to have a flow trigger to automatically start say, my model training workflow…

I would recommend checking out this discourse post about event-driven workflows. There are several ways to trigger a work flow