DietPi, rockPi4 and 1wire

Hello.
I have to switch my software from raspberry Pi4 to Rockpi4 Plus V1.73.
This software need access to a 1 wire thermal sensor.
Do you know how to say DietPi to use w1-gpio4-30.dtbo ? I only have a dietpiEnv.txt file with:

rootdev=UUID=55fda32e-5677-4f5d-aa3d-0894ad2aa7ac
rootfstype=ext4
consoleargs=console=tty1
verbosity=4
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
extraargs=net.ifnames=0
docker_optimizations=off
overlay_path=rockchip
overlay_prefix=rockchip
overlays=
user_overlays=
fdtfile=rockchip/rk3399-rock-pi-4b.dtb

Thanks for reading.