To install this little application:
 o install GNUstep, GNUstepWeb (including apache module),..

./Hello.gswa/Hello -GSWMTEnabled NO -WOHost 127.0.0.1 -WOPort 9008 -WOAdaptorHost 127.0.0.1

On OS X:

./Hello.gswa/Contents/MacOS/Hello -GSWMTEnabled NO -WOHost 127.0.0.1 -WOPort 9008 -WOAdaptorHost 127.0.0.1

(change your port and IP as needed)

Point your web browser to the URL printed out or configure a web adaptor as described on

http://wiki.gnustep.org/index.php/Apache2Adaptor