When does curator run jobs?

I have just got Curator up and running and successfully ran a dry-run against my actions file. I didn't see anything in the curator document as to how and when it runs. Do you have to manually run these jobs from the command line every time you want your actions to run? Is it triggered by something(time-based)? Also does it auto start at boot?

Curator does not (yet, anyway) have its own scheduler. It is typically run in cron on Unix-based systems, or with the task scheduler in Windows.