(I have also spent the last year working on a homebrew OS kernel, so please trust that my "why" isn't intended as an attack! For me, the answer was simply "to see if I can", and I really enjoyed the project, but I'd love to know what motivated you in particular - especially as you seem to have achieved a very impressive amount)
(I have also spent the last year working on a homebrew OS kernel, so please trust that my "why" isn't intended as an attack! For me, the answer was simply "to see if I can", and I really enjoyed the project, but I'd love to know what motivated you in particular - especially as you seem to have achieved a very impressive amount)