Set RGB to full range under wayland ly-dm
In Arch /usr/lib/systemd/system/ly.service I have this settings
ExecStartPre=-/usr/bin/proptest -M i915 -D /dev/dri/card1 207 connector 194 1
ExecStart=/usr/bin/ly
, how can I insert the proptest part in /etc/dinit.d/ly or somewhere else so that it runs before Wayland? In other words, what would be the equivalent to ExecStartPre in dinit language?