GPU/Boost Pay Per Hour

Describe your feature request
I’d like to pay for GPU/Boost access per hour. Generally, when I need a lot of computing power, I’m actively doing something in the Repl–and don’t plan to leave it on for 24 hours. It would save Cycles and computing power if I could pay by hour.

What problem(s) would this feature solve?
More finetuned usage of GPUs/Boosts.

Explain what you were trying to do when you came across the problem leading to this feature request
I wanted to embed a dataset, and I needed a lot of computing power for 10-20 minutes, but I didn’t think it was worth it to buy a whole day.