Circuit is really easy: Relay module is connected to Arduino D6 and D7 pins. External 5V is connected to VIN and Ground. AC is connected to heat and motor but with the Relay is in the middle so it can be controlled from Wifi through the Arduino MKR.

Print with PLA. Support is only required for the enclosure base.

The link to get the 3d parts is https://cults3d.com/en/3d-model/gadget/micro-shawarma

Download shawarmax.ino file from https://github.com/ronibandini/microShawarma

Connect a microUSB cable and upload to the Arduino MKR Wifi 1010