Automatic snapshots/nightly build system/scripts

Hey guys,

I would like to provide nightly builds/snapshots of the current SVN revision of my project for my testers.

Some while ago I asked about this in the IRC channels, and someone pointed me to tool that hooked into SVN and used a server/client (satellites) approach to build software on different platforms, run tests and upload packed versions of the software to a server.

Has someone an idea which system that was? I know that it was written in Python, but I can't seem to find it via Google anymore... :(

Thanks!
Basti