Hello.

Renting/sharing servers goes against the contract done with OutSystems so if anyone helps you with that, they may lose their license (and in consequence, you).

There is the option of you doing a short term contract with OutSystems (I think the answer will be 'no' as they want clients that stay for multiple years, not months) but if your use case is interesting enough, maybe.

The only "renting" I can think of, is for training. There is a weekly license you can hire for as long as you want, if it is for training purposes.