@troublewithwords programming language: Rust. OS: Linux, especially Arch and Gentoo I think, but any Linux is definitly ok.
There aren't many women in active developing of these projects (women are a minority in all of IT, for some weird reason), but the project I mentioned are sure very LGBTQ+ friendly and very inclusive in general.
In my opinion though using inclusive projects or avoiding the white heterosexual cisgender man is not the point; the point is to eliminate any kind of discrimination directly. I mean, I don't give a damn if the person who makes a program is male, female, white, black, hetero, gay etc; if it's a good program I'll use it. That's real equality for me!