os/hosts/chocolatebar/.config/sway/config.d/screens.conf

set $left DP-3
set $middle DP-2
set $right DP-1

output $left {
  scale 1
  pos 0 0
}

output $middle {
  scale 1
  pos 1920 0
}

output $right {
  scale 1
  pos 3840 0
}