Run:

       sudo ./mzscheme.sh	
       checkmodule -M -m -o local.mod local.te
       semodule_package -o local.pp -m local.mod
       sudo /usr/sbin/semodule -i local.pp

The mzscheme module tells SELinux that it can run mzscheme.
The local.te policy allows CGI scripts additional 
privileges (PostgreSQL, etc.) needed for Wishforge.