Edit: Why downvote? Isn't this the same logic touted by equality organizations?
Maybe post on forums or reddit subs that are pertainate to women's wellness. That's the niche - not the technology side. So you should be able to find individuals on those pages who also have the technical skills. It's more like finding a needle in a haystack looking in the technology forums for any resources who are passionate about a non-technology specific niche.
Also with women being systematically excluded from many opportunities in tech, this is hardly going to deprive some man of an opportunity.
Do you have some sources for this?
"There are a million reasons why women prefer to work with women."
And the same is true for men wanting to work with men.
"this is hardly going to deprive some man of an opportunity."
If one is actually excluding men, then this by definition deprives them of that specific opportunity.
I'm currently also seeking a technical co-founder for my start-up, I'm looking exclusively for white men.