What exactly do you mean "push"? What do you think is going to make musl developers switch languages?
what will it take to move away from c? older devs retiring. Planck said that "science advances one funeral at a time" and i fear it will be the same for software.
I'll take forking and porting, thank goodness for LLMs.
Rewriting it to Rust is fine attempt, just hard to call it is unix/posix anymore. It may not matter but semantically true.