Hi,
As can be seen from the index, there's currently not a lot there - just an adhoc collection of PDL, Math, GTk2 and a few other modules that are not all that trivial to build. To add it to your existing list of ppm repos, just:

ppm repo add http://www.sisyphusion.tk/ppm/
[download]

Any problems with it, please let me know.

Expect it to grow a little as time goes by - requests for additional packages will be considered. (I'm currently working at getting PDL-NetCDF built for x64 perl-5.12, and I'll be putting PDL-Audio up there soon, too.)

Cheers,
Rob