Ninjas are very nice kind of unicorn developers with code monkey abilities.
How to get a build environment for Ninja work
Graph of the KDE internal dependency tree
Guide on Ninja release packaging
How to master Quilt
Packages that reference the package version in debian/rules
How to handle l10n magic
Optional components list for KDE 4
The localization operator guide *hot*
The Kubuntu PPA 101 - what goes where
Archive build status for kubuntu packages
Trello 101
Open CVEs applicable to Kubuntu packages