A herd is a collection of packages with an associated set of maintainers.
It can happen for example because of retirement that a herd has no developers
but this should be avoided if at all possible. A herd has an associated email
address which can be used for bugzilla assignments. This email address is
for example, because of the
way Gentoo's email aliases are set up, the
cron herd use
email@example.com (aliases cannot match system usernames).
A project is a group formed for handling a particular general area. A project may have herds associated with it.
Sometimes herd and project names overlap
for example, the
has an associated
sparc herd which maintains sparc-specific packages (such
silo bootloader). This is not always the case.