The deb and rpm files are not from the application either. Someone outside the application took the application and built the deb/rpm for the distro. FreeBSD just calls their packages "ports", but the concept is otherwise the same, just download the package. FreeBSD is better that most distros as is works to rebuild some middle library yourself with non-default options and then have a leaf application binary depend on it (assuming of course that they are compatible, if your non-default option breaks the application it won't work)