its not obscure platforms, its a ton of embedded platforms (you may consider that obscure, but reality is there are millions and millions of devices out there running software on these "obscure" platforms), most of them don't have many options. At one stage I was writing write my own language to compile to C based around state machines and actors as so many devices tend to be some version (often badly implemented) of those two things. But I ended up moving out of the embedded world and kind of lost my prime motivation for doing it.