Great idea whose time is come! I really hope it works, as a good first step. The next step should be “when there are nine”, but that is obviously too scary for male douchebags. (“Notorious RBG” has Ginsburg’s more complete response and explanation for why “nine” is the “enough” number.)
I would join 50/50, but I’m not an entrepreneur nor VC, though I am often mistaken for one, specially by young Eastern European women. Plus, I don’t want to be the token POC.
I can offer you tiny help as a data scientist: the mathematically and perceptually correct way of comparing demographic distributions, should you ever want to expand your scope to include, say, black women.