The Schily Source Package System (SPS) is a source-based packaging
system that is developed for SchilliX (a OpenSolaris-based Unix
distribution) but is highly portable and works on many operating
systems. It "boots" from a single 10kb shell script and creates all
needed binaries from scratch. In contrast to other similar systems, it
is modular and reusable. It is based on the Schily Makefilesystem and
smake.