Toadstool has been criticized for having an unlispy syntax, but that concern appears to have been rectified.
The Git repository is at http://tehran.lain.pl/git/toadstool (browse it).
A mirror at github is at https://github.com/kisp/toadstool.
ASDF-install package (obsolete) http://tehran.lain.pl/stuff/toadstool-current.tar