Safest to say the exact thing (or list of things) I reckon! Technically "serverless" should mean "no server" which means "no process fielding network requests"

Safest to say the exact thing (or list of things) I reckon! Technically "serverless" should mean "no server" which means "no process fielding network requests" i.e. "unable to accept inbound network requests" - so some kind of batch processing system, or scheduled lambdas :-)