Flawless:
"Flawless is an execution engine for durable computation. It will run your code until completion even in the presence of hardware or software failure."
"Workflows in #flawless are written in #Rust, in fact they are just regular Rust functions. This means that they can contain arbitrary logic. But instead of native code, the functions are compiled to #WebAssembly and executed in a completely deterministic environment [...]"