Great to hear! That's really the solution.

Rust async code can be a bit challenging until you get it, but I can't think of a way to make it that much simpler without sacrificing the whole "systems programming language" concept or support for embedded. The only good alternative is Go-like fibers and that requires a fat runtime.

We use both Rust and Go at ZeroTier and find that they both have their own niches. (We are slowly moving ZeroTier from C++ to Rust to use a more modern and more importantly safe language.)