The point GP was (probably) trying to make is that OpenBSD's vision of security is at odds with its insistence on C, a notoriously unsafe and insecure language. There's no reason that the replacement language has to be Rust; it could be Nim or Zig or C# or Java or Vala or OpenBSD Custom Memory-Safe Language.
What it takes for OpenBSD to choose to support whichever language it wants to is primarily a commitment to actually spend its resources to support said language. That the OpenBSD targets for Rust are tier 3 is a sign of its unwillingness to consider moving away from C: what it takes to move from tier 3 to tier 2 is a set of maintainers who have a commitment to be responsive to patches, and an automated CI solution.
(Also note that OpenBSD is the largest Unix "stuck" in tier 3 for Rust. Solaris/Illumos, FreeBSD, and NetBSD all manage to have tier 2 builders. Even Fuchsia and Redox have tier 2 support!)
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The point GP was (probably) trying to make is that OpenBSD's vision of security is at odds with its insistence on C, a notoriously unsafe and insecure language. There's no reason that the replacement language has to be Rust; it could be Nim or Zig or C# or Java or Vala or OpenBSD Custom Memory-Safe Language.
What it takes for OpenBSD to choose to support whichever language it wants to is primarily a commitment to actually spend its resources to support said language. That the OpenBSD targets for Rust are tier 3 is a sign of its unwillingness to consider moving away from C: what it takes to move from tier 3 to tier 2 is a set of maintainers who have a commitment to be responsive to patches, and an automated CI solution.
(Also note that OpenBSD is the largest Unix "stuck" in tier 3 for Rust. Solaris/Illumos, FreeBSD, and NetBSD all manage to have tier 2 builders. Even Fuchsia and Redox have tier 2 support!)
I think sometimes people forget the openbsd project was not started with a text editor opening an empty file.
Their idea of security honestly seems very narrowly scoped on fixing a particular set of issues.