Getting Chrome SSL warnings on both the OP link and https://get.dev/ Doesn't really evoke confidence, if this is a Google initiative. Can someone post a short precis as to what this is about for those of us who cannot visit the URLs? UPDATE: Apologies - My bad, not Google's fault. I had a local Valet/NGINX redirect for local .dev domains setup for Laravel development projects that was causing the issue.
Oh, and this is definitely a valid Google initiative. Source: Work for Google, am involved in this.