None of this means that you have to be on a specific platform. GitHub as default/mandatory is a single point of failure for the entire tech industry.
For an example of another language that avoids being entirely coupled into Github, Go has it's real code hosting and CI interaction on a Gerrit instance, with some sync back and forth to GitHub for a few items.
The CI pain and operational blindness mentioned in the Zig post is entirely real.
Maybe, but isn't it too soon to be mainstream anyway? Until the language and standard libraries hit 1.0, it seems like Zig is for early adopters. Having too many of the wrong kind of users is just going to be frustrating for everyone.
For an example of another language that avoids being entirely coupled into Github, Go has it's real code hosting and CI interaction on a Gerrit instance, with some sync back and forth to GitHub for a few items.
The CI pain and operational blindness mentioned in the Zig post is entirely real.