zsh: Make ... and .... global aliases for use mid-command and tweak some other things.
startx: Apparently this is a thing I should test for... :I
mpv: Current xf86-intel-video 2.99.912 causes external monitors to turn off and freezes the display.  Removing vo=vaapi and using vo=opengl corrects this issue for now.
zsh: Since coreutils 8.23, LS_COLORS is required to be set with a correct recognised TERM value to produce colours, even with
dircolors: Generated from `dircolors -p` with the addition of TERM
xterm-termite so that `ls` will recognise it and enable colours again