Great point, thanks for making it. Following onward, NumPy has a non-profit called Numfocus who is behind it:

https://numfocus.org/

https://projects.propublica.org/nonprofits/organizations/454...

Apparently they have an annual budget of ~$10M. From the contributors, it's easy to recognize the Chan Zuckerberg Initiative (so Meta), Google, MSFT. This is great.

Having said that, I'd still say that $1-2M for a CSS library seems more than enough. Not everything needs to be "scaled"..