Do you need a cloud agnostic compute platform?

Is anyone interested in a platform that accepts your ad-hoc compute workloads (think overnight jobs, ETL etc.) and gets them completed on the cheapest public cloud spot resources available at the time?

What if you were offered a Python SDK that exposed cloud agnostic APIs that you can use to write a workload / step function and a platform that accepted such workloads and got them completed based on your choices such as ETA, max cost etc.?