Rust is solving the memory safety problem, Zig is solving the 'idiomatic interop with existing C coding patterns' problem. These couldn't be more different - C-like idiomatic code is generally antithetical to 'safe' modularity since it often relies on tacit global invariants for correct behavior.

Interestingly, Carbon is kinda trying to tackle both at the same time (though starting from C++ in their case) which is a bit of a challenge.

I was more referring to the type of things 90% of the developers are likely to build. In most cases that'll be command line tools, libraries or API's.

I am not sure how Carbon will go. The Carbon compiler is not ready to be used yet by the public as I understand it, and the roadmap has not been updated for some time now, it seems.

https://docs.carbon-lang.dev/docs/project/roadmap.html

I hear Cardon get mention on rare occasion, and with how rare that is I have to assume it's been completely stagnant. Does it offer anything over C++ in current year? Seems like C++ interop begets turning your language into C++ with different syntax in a way that C interop just doesn't.