Made sure the stock firmware printed the example gcode that came on the SD card and then immediately embarked on my journey to get klipper running on this guy.
I didn’t finish until the wee hours this morning so I’ve yet to really give it a go but all the essentials are operational.
Here’s the GitHub link to the config I created: https://github.com/0xD34D/ender3-v3-se-klipper-config
even better, add [screws_tilt_adjust] to take advantage of the crtouch and a little fancy computer math to make leveling super easy.
after configuring the screw locations and thread pitch, execute the command screws_tilt_calculate
https://www.klipper3d.org/Manual_Level.html
ender beds use M4 screws