Ask HN: How to sell a script that will save companies $100k a month?

So while working in Big Tech, I have found misconfigurations in our cloud tools that if improved would save our company approx $100k each month in cloud costs.

Now, I could do it in my company and maybe I will get a promotion for it and that's it. But to be fair, I am tired of this corpo BS I have to tolerate every week and would love to have some capital to quit it and focus on solving actually interesting problems.

I am certain that other companies also have this problem. But as it is solvable with a script, I feel like it would be really difficult to sell this solution to other companies...

So I come to you, HN, for advice. How would you make this into a business/saas/get out of corporate hell hole plan?

I was thinking maybe there is a way to make this open-source but with a cc-by-nc-sa-4.0 license to make big companies pay for this solution. But I feel like if there is no way to detect this being used, there is actually no way to enforce it...