raphamotta - does the WiFi work for you out of the box? Mine does not with the Bookworm DietPi release.
I’m not sure exactly what’s missing but the wifi device is listed as “Not Found” in dietpi-config. It is working on the same Orange Pi 5 max with the Joshua Riek Ubuntu image (on 6.1.0-1025-rockchip).
I’m giving the dietpi Bullseye and Trixie images a shot now