“musl is such a high quality codebase, that most of the Zig standard library’s interface to Linux is a direct port of musl code.”
Zig ships musl and builds it on demand so a Linux binary just runs. Kelley quit his job to work on Zig on donations, then gave a tenth of that income to the project his work sits on. musl has no hype and a huge footprint. The person with the least money in this story is the one paying for it.