Not the former VC, but an active venture capitalist: https://kvinogradov.com. I earn money by investing in open source / AI / infra software startups, and I spend money by donating to nonprofit open source projects :-)
Also, it is not a VC who run things, but the team which consists of people with diverse backgrounds (founders/executives/devs x OSS/nonprofit) and the donor community (which everybody can join): https://endowment.dev/community/