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Everything to do with reimplementing sudo, though.

But sudo has its share of CVEs as well (latest CVE-2025-32463), so perhaps a fresh look on the tool is warranted; perhaps some learnings have been taken from it.

I think if rust was used to replace other bits (say things like utilities like grep or whatever) instead of security vital things like sudo, there would be less complaints.

Do you mean like uutils/coreutils.. Which certainly collects complaints :).

No doubt. I'm just guessing people would grumble less.

A fresh look would be perhaps doas [1] from the OpenBSD project.

[1]: https://man.openbsd.org/doas.1

sudo-rs tries to be more or less a drop-in replacement for the original one, though, meaning minimal reconfiguration should be required for it.

Do they have test suite comparable to that of original sudo, or can they reuse the test suite of original sudo?

Same could be said about many of the real sudo bugs, but that argument doesn't stick with rust fanboys.

(Obligatory disclaimer: I love rust, I hate fanboys and rewrites)