While this is amazing, this does prove that it is probably impossible to run Linux in 8-bit micro without such contortion. Any Turing-complete machine with enough storage and memory can simulate ARM, and also ARM Linux. So don't use this as an argument for using a normal Linux in such platforms :)
(2012) but still awesome :)
see also previous discussion https://news.ycombinator.com/item?id=5581851