Tests could verify that the transpiler correctly maps certain C constructs, but that almost doesn't matter. There is a fair chance that the translation won't wo

Tests could verify that the transpiler correctly maps certain C constructs, but that almost doesn't matter. There is a fair chance that the translation won't work anyways if there's too much C sorcery and undefined behavior involved. The idea of continuous two-way synchronisation between codebases is migraine-inducing to begin with. Even though Rust can probably transpiled to C with way less risk of losing fidelity. But I wouldn't be so sure that this always works out the more `unsafe` blocks the Rust version requires. C compilers are not designed to minimize UB after all, and the results can be very surprising. Yes, I hope people are sane enough to eventually commit to a somewhat tidied-up Rust version and to only keep the C version around to conduct software archeology. Of course, this will produce a hard fork of the codebase, and the usual political reasons specific to such efforts apply.