"Better C" runtime?

[w0rp via Digitalmars-d]

There were a couple of talks at DConf which made some mention of 
re-implementing parts of druntime so you can compile D code 
without druntime. I wonder, do we have any current projects for 
creating lightweight runtimes? I'm thinking of what it would be 
like to write library aplications which use @nogc everywhere and 
expose some extern(C) functions, so you could write C libraries 
in D instead, such that you could produce lightweight binaries 
for use in machines which don't have druntime installed on them. 
I think it would be a fun project.