> How do they actually make money? They say they've got 33 staff members and 14 board members/advisors. Do they all work for free?

Propublica's nonprofit explorer[1], and specifically the Form 990 filings[2], may be useful.

[1]: https://projects.propublica.org/nonprofits/organizations/522... [2]: from 2022 https://projects.propublica.org/nonprofits/organizations/522...