There is really not much to build a basic BinPal - just take a piece of plywood, cut a hole for the LCD display and hot-glue all the components to the back.

Next step is the wiring - this again is really straight-forward. Simply connect the GND and VCC pins of touch buttons and display to GND and 3.3V of the ESP32. Then connect all the pins of the display to the ESP following the pin-mapping in the Arduino sketch. All required files can be found in the files section.

Now connect the touch modules and the battery to the ESP32, load up the Arduino sketch and flash the firmware to the ESP.

Finally cover the back and the sides with some more plywood, add a few magnets and hot-glue everything together. Voila - you made a BinPal!