Quad
A document processor — in the tradition of PUB, troff, Scribe, and TeX — written in Racket. Not even close to fit for public consumption.
Using Racket 6.0+, install from the command line:
raco pkg install quad
And update like so:
raco pkg update --update-deps quad
Docs: http://docs.racket-lang.org/quad
License
MIT