Apache Allura (the technology behind the SourceForge developer platform) is looking for Google Summer of Code students. You can read the blog post about this HERE, and read more about what’s involved in the process in the wiki.
SCons - a software construction tool (build tool, or make tool) implemented in Python, which uses Python scripts as “configuration files” for software builds. It is an easier, more reliable, and faster way to build software, solving a number of problems associated with other build tools, especially including the classic and ubiquitous make itself.
FreeFileSync - a graphical file synchronization and folder comparison tool. This means its main purpose is to speed up backup operations by examining the differences between source and target folders and then copy only what is needed rather than copying everything each time, similar to what a disk cloning/imaging tool does.