Show HN: Implementation of DJB Redo in Bourne Shell (news.dieweltistgarnichtso.net)

I have implemented the build system redo as designed by DJB in around 400 lines of code. redo is simpler, more flexible, more powerful, and more reliable than make. The original redo design notes can be found on DJB's web site: http://cr.yp.to/redo.html

I am interested in extending the F.A.Q. on the linked page.