One star, if it's from the right person. Revenue is number of people willing to pay you time the amount they're willing to part with. Neither of those can be

One star, if it's from the right person. Revenue is number of people willing to pay you time the amount they're willing to part with. Neither of those can be inferred from number of stars on a GitHub page (it probably has the most correlation with the number of people willing to pay, but there's going to be a scaling factor there that will vary dramatically based on the nature of the project).