Curious which projects you had issues with? I've only had positive experiences using zig build. Maybe you ran into version issues because 0.11 changed the entire build api?

I personally would rather not use a pre 1.0 release of an entirely different programming language to compile my C/C++ projects.

Cough ... cmake ... cough.

If you use Meson/Ninja then I apologize in advance.

Especially the build system had tons of changes on the way to 0.11.0, and many Zig projects seem to prefer to "live on dev", so frequent breakage wasn't all that surprising during the last year or so.

The language is in flux at the moment, so unless the projects are updated to use master (and are being built with master), one tends to run into incompatibilities not infrequently.

The worth of a build system that is actively advertised as “not ready for production” is entirely individually dependant.