Fil-C[0] can compile GNU coreutils, it has stronger* memory safety guarantees than rust, none of the compatibility issues that a wholesale rewrite has, and performance that seems to be within about a factor of two[1] compared to the normally compiled code..
[0]: https://fil-c.org/.
[1]: https://bannalia.blogspot.com/2025/11/comparing-run-time-per...
* Guaranteed to crash rather than potentially grant arbitrary code execution.
"Stronger" is absolute bullshit. No data race prevention. No intra-object protection. Mandatory GC, and 5x the compute cost. Nothing like a statically safe language.
It's coreutils, there shouldn't be any threads to be data racing.
Haven't threads been one of the reason some core util got faster?
Only GNU sort uses threads. There is still some room for improvement there, if anyone wants to take a shot at it. :)