After pure FreeBSD installation

# portsnap fetch

# portsnap extract

# portsnap fetch update

# pkg upgrade

# pkg install sudo vim xorg kde5 kdevelop sddm firefox libreoffice gimp vlc soundconverter lftp

# sysrc dbus_enable=YES

# sysrc ssddm_enable=YES

# vim /etc/sysctl.conf

net.local.stream.recvspace=65536

net.local.stream.sendspace=65536

:wq!

# shutdown -r now