Use of sysutils/pacman in FreeBSD?

[Thomas Mueller]

I recognize pacman as a package manager for Arch Linux along with Arch Build System, but how would pacman be used in FreeBSD?

Binary-only package manager or build from source for FreeBSD, or would it be used to add packages to an Arch Linux installation while running from FreeBSD?

I notice pacman has also been ported to other Linux distributions, in some cases with substantial modifications.

Tom