Actually let me bit a bit more clear on this in theory we could and we tried to actually support this via kqueue on FreeBSD, but sadly kqueue is not the best for this (See more here: Properly implement kqueue to allow PMS to auto-update library on filesystem change (FreeBSD)) on other systems we use inotify (linux) or fsevents (macos) and AFAIK inotfy is still not supported (or loved) on FreeBSD.
