The installation disk installs a complete bootstrap development system first. After the user tells the Lunar manager which packages will be required, it automatically builds the software by downloading current source code and locally compiling an optimized package. On the downside, compiling software from scratch may be time-consuming and complicate the task of keeping the packages up to date.
Currently, Lunar supports the i686 and x86-64 architecture, but has been implemented by users on SPARC. No install support is planned for non-x86 architectures at the moment.