Code
mkdir -p /storage/.config/rc_keymaps
cp /usr/lib/udev/rc_keymaps/x96max.toml /storage/.config/rc_keymaps/custom_remote
sed -i 's/x96max/custom_remote/g' /storage/.config/rc_keymaps/custom_remote
echo "* * custom_remote" > /storage/.config/rc_maps.cfg
reboot
This ^ should define a new custom_remote config that's the same as the x96max remote.
This ^ might be an even easier version (see if it works first). It's been a while since I played around with the keymaps.
If neither of those work, the keycodes need to be persuaded into outputting something with `"ir-keytable" .. I'm not sure why that wouldn't be showing something.