ape: modified sources for APE
gcc: libraries built for the Plan9 port of gcc (/n/sources/extra/gcc)
patch: in cases where small changes are needed for a port, a patch can be published
pkg: i386 binary redistribution of ported packages, a tar bz2 archive to extract at /, includes sources.
pkgsrc: scripts, packages, notes and sources to bootstrap pkgsrc under APE