"a bit of discipline" is doing a lot of work here.
"Just don't write (memory) bugs!" hasn't produced (memory) safe C, and they've been trying for 50yrs. The best practices have been to bolt on analyzers and strict "best practice" standards to enforce what should be part of the language.
You're either writing in Rust, or you're writing in something else + using extra tools to try and achieve the same result as Rust.