@phaedrux
The raspberry pi display requires the ribbon cable and some use of a few gpio pins
I am going through the same issue
The duet3d 6hc uses all the gpio pins that I need to power the pi and more importantly run its touch screen
Can I use a gpio expansion board
https://www.amazon.com/GeeekPi-Raspberry-Extension-Expansion-Screws/dp/B08C2XK25W/ref=mp_s_a_1_4?dchild=1&keywords=raspberry+pi+gpio+expansion&qid=1629864877&sr=8-4#immersive-view_1629864907271