Is there any plan for a dependency-free subset of "core" runtime?

[Zheng Luo (Vic)]

Current implementation of d-runtime relies on a lot of symbols 
from libc, librt, libpthread, which makes it hard to create a 
minimal runtime used for embedded devices. Although there are 
some unofficial minimal versions of d-runtime, many of them lack 
maintenance and outdates rapidly. I was wondering that is there 
any plan for a https://doc.rust-lang.org/core/ library in D 
world, which only depends several explicitly-defined symbols?