Console Driver (tty) for FreeBSD, introduced as default in FreeBSD-12.

Documentation

man vt https://www.freebsd.org/cgi/man.cgi?query=vt&sektion=4

FreeBSD wiki https://wiki.freebsd.org/Newcons

Locations

/boot/loader.conf set console driver

# /boot/loader.conf
vt.kern.vty = "sc"  # enable syscons

man vt	https://www.freebsd.org/cgi/man.cgi?query=vt&sektion=4
FreeBSD wiki	https://wiki.freebsd.org/Newcons