[filleokus]

I guess Unikraft is that, kinda? https://github.com/unikraft/app-nginx

[xena]

I don't see any easy way to get an existing Rust application running on Unikraft. I'll keep an eye out though!

[hinkley]

Well, that shows some promising numbers, but it's still a unikernel rather than an embedded OS which is I think what OP is asking for.