For the lazy person who doesn't want to open the base for powering the Octoprint server when converting to DuetWifi+Duex: 1.) Cut open the leftmost cable tie of the line that holds the Raspberry USB cable and the 2-pin cable that used to be connected to the Rumba 2.) Connect the 2-pin cable to a Fan/LED connector on the Duex (or Duet if you run single extruders) 3.) Power on the Raspberry with M106 P8 S255 (P8 is FAN/LED port 8 on Duex in this example) 4.) If power works again, put the command in config.g for automatic startup of the RPi each time 5.) Execute tutorial: https://betrue3d.dk/rpi-zero-wireless-video-for-duet-using-motioneye-os/ (Kickstarter BigBoxes came with a RPi 2B) 6.) Profit! You can reboot the RPi now via the Duet.Bonus points for macro G-code that reboots the Raspberry, might be a good way to play around with M291 and M292 commands to do it elegantly via touchscreen.