Lately, I've been working on implementing a scripting language for GRUB, as well as a Guilified version of Bash (which I call Gush). My philosophy of software development has matured somewhat, and I'm trying to factor out common pieces that would be useful for other applications. That's what Figure is.
So far, it's got a really tiny footprint, a typed in-memory name system, cooperative threading, a garbage collector, and a command shell.
Remaining work includes the data translator (used by the garbage collector), and the language syntax (not a programming language, just a wrapper for other programming languages).
I have truly evil plans for this software. I'll announce it all over the place when I get it nicely packaged up for you.