The article says: "... the user can rebuild the entire system from source with a make buildworld command and install the packages with make installworld. This is also the way to update an Owl system." I thought I'd clarify: although we do not (yet) provide a package repository in the sense of yum, apt, or the like, we do provide pre-built RPM packages, which we recommend downloading from one of our FTP mirrors with lftp's mirror command (lftp is included in Owl). The RPMs may then be installed with "make installworld" (required for some major updates) or with "rpm -Fvh" (also works most of the time). So building from source to update a system is not mandatory, and most systems are updated using pre-built packages.