Other question, I want to accommodate ad hoc, parameterized flow runs. In the current system, these are triggered by some agent putting a message in an SQS queue. Would you suggest a top-level flow that monitors the queue on a schedule and runs flows or tasks as messages are received? Or some non-prefect listener that will kick off the flow runs as messages are received? I'd like to have the runs be individual for later visualization and troubleshooting

So honestly, my recommendation here is going to be Prefect Cloud (feel free to e-mail me at chris@prefect.io if you’d like to explore this further and hear more about our timelines); any other approach might work in some cases, but won’t be robust against all possible edge cases