Vast.ai is a cloud compute hosting platform, and they have cheaper pricing compared to its competitor, Runpod. Since OP did not find guides on getting Oobabooga running on Vast.ai’s computers (which is more complicated than existing Runpod tutorials), they made one themselves.
The guide includes an on-start script to clone the Oobabooga repo, how to choose the right computer, and how to set up Ooba.