Comment by gaigalas

I am currently watching closely both yours, pnut.sh (already mentioned in the thread) and https://github.com/cosinusoidally experiments. I think they all have something good to contribute.

These first steps interest me very much, and perhaps x86-only is the best we'll get for a foreseeable future (10 years or so), considering how difficult builder-hex0/fiwix is to port to another arch and how crucial it is for the whole concept.

The GCC 4.7 RISC port and other things are nice (higher stages), but they are short term practical goals. I think the future lies in very specialized bootstrap-specific software that can cut lots of corners at once.