config.kdl

# ┌─────────┐ ┌──────────────┐
# │  DP-3   │ │  HDMI-A-1    │
# │ rotated │ │ 3440x1440    │
# │2160x3840│ └──────────────┘
# │         │ ┌──────────┐
# │         │ │ HDMI-A-2 │
# │         │ │1920x1080 │
# └─────────┘ └──────────┘
output "DP-3" {
    mode "3840x2160@60"
    transform "90"
    position x=0 y=0
}
output "HDMI-A-1" {
    mode "3440x1440@90"
    transform "normal"
    position x=2160 y=0
    focus-at-startup
}
output "HDMI-A-2" {
    mode "1920x1080@60"
    transform "normal"
    position x=2160 y=1440
}