eyra

I just remembered that there is also https://github.com/sunfishcode/eyra (but I think it might be a dead project) which is close to that, it had slipped my mind. All of these are going to mean you can't link any (non-freestanding) C code, load any dylibs, etc. So you will be fairly limited in what sort of applications you can write. Forget most GUI frameworks, even native ones. You won't be able to load GL or Vulkan drivers for example. You are basically stuck with command line or servers.

That is possible: https://github.com/sunfishcode/eyra

"Impossibru!!" https://github.com/sunfishcode/eyra Oh look: > Why use Eyra? It fixes Rust's set_var unsoundness issue. The environment-variable implementation leaks memory internally (it is optional, but enabled by default), so setenv etc. are thread-safe.

One can also create small binaries with https://github.com/sunfishcode/origin (e.g., https://github.com/sunfishcode/origin/blob/main/example-crat... is in that ~400 bytes range) and select features as wanted without having to reimplement everything. Also see https://github.com/sunfishcode/origin-studio and https://github.com/sunfishcode/mustang - and of course https://github.com/sunfishcode/eyra

From https://github.com/sunfishcode/eyra "Eyra is a package that supports building Rust programs implemented entirely in Rust."

Have a look at Eyra (or more specifically c-ward). https://github.com/sunfishcode/eyra/ https://github.com/sunfishcode/c-ward