So, Dev here, many years. and more than one degree.

1. GC Women? not that i know of. Tech is super left and super woke in some of the worst of ways (look, I'm classical liberal/left libertarian, I'm not a giant fan of authority figures, fanatics, or restricting free speech or rights of the "wrong" people because it goes bad places). Women in development at least, ie programming/comp sci, devops. IT side of it (the other aspects of tech I would know less), are NOT real common. The numbers have been dropping for years. And the only way we get space is to do it under the most progressive of terms -which means trans inclusive. There's also an unusually high rate of transwomen in this field, who often started male, and they are the sort prone to the worst sort of dramatical hissy fit tantrums if they don't get their way.
2. I resonate with it, but you're treading on dangerous ground in tech. So, James Damore was an asshole of a man, who got things a lot wrong. but he got one thing right- there are biological differences between men, and women. While he wanted to go off that lady-brain keeps us from being developers, the backlash was worse - and it wasn't just me that noticed. Any notion that there are sex-based biological differences in men and women, and that might impact our day to day lives or experiences getting into tech, got canned hard. Lest you be like James Damore. That lawsuit got settled too because Google also pretty much shot themselves in the foot internally with some of their "diversity" (not the real sort, the sort where you mock people you dont like and dimwittedly put it in a corporate system that can be reviewed and later subpoenaed by the courts).

between the extreme postmodern progressive tendencies, and the absolutism that there can't be any difference in men and women without either some asswipe turning it against women into sexism or everyone else refusing to have a nuanced and thus pretending it doesn't exist, leads to a very anti-GC environment.

In short, I don't think we can mobilize anything to protect women in tech, or digital spaces, or having sex based annnyyyyything until society at large realizes how regressive and insane the whole thing is. Tech is going to be the hardest place to do a damn thing because of those factors, and how few of us there are.

Not to be mean, but a lot of women left the field for others they enjoy more (no offense, really. it just happens a lot), leave to go become mothers (again. this is fine, but it happens more often), or never entered the field to start with. There aren't enough of us, there truly aren't, to get a dedicated GC woman space even if we wanted. Half the time we're lucky to get a dedicated trans-woman friendly "woman" space as long as we team up with marketing, sales, or other non technical roles at "tech" companies. (I confess, only at once company have i enjoyed those meetings and outings, and usually skip them these days. they also rarely are more than an interesting social club because the roles are so different between the different parts of the company).

Sorry to be terribly negative about this, but, tech is not going to be the place to launch GC movements and spaces from. I think tech women would join non-tech centered spaces that are GC. Honestly though, GC isn't..GC isn't required as an ideology for a tech-focused space. We all tend to tunnel vision a little too much. It'd just be nice for there to be less sexism if your usernames are female or less brogrammer behavior when females are trying to learn in a male dominated space- I've found it's less the corporations and companies and more the programming "community" and open source spaces. GC wont get us that directly, either (i mean, i'm not saying it wont benefit us in general, but it's not going to get us what we need from tech the most for women). I'm seriously considering trying to figure out how all of my usernames read "female" and trying to hide my gender online completely on a new github/gitter account. I think things will go a lot better if I do - while retaining my actual identity of course in my day job and on my professional profiles. Which you better believe, are apolitical as possible and not a shred of GC statement in them.